diff --git a/tests/WP_SQLite_Driver_Translation_Tests.php b/tests/WP_SQLite_Driver_Translation_Tests.php
index 1da6334..ac3bf37 100644
--- a/tests/WP_SQLite_Driver_Translation_Tests.php
+++ b/tests/WP_SQLite_Driver_Translation_Tests.php
@@ -1,6 +1,7 @@
 <?php
 
 require_once __DIR__ . '/../wp-includes/sqlite-ast/class-wp-sqlite-driver.php';
+require_once __DIR__ . '/../wp-includes/sqlite-ast/class-wp-sqlite-information-schema-builder.php';
 require_once __DIR__ . '/../wp-includes/sqlite-ast/class-wp-sqlite-token-factory.php';
 require_once __DIR__ . '/../wp-includes/sqlite-ast/class-wp-sqlite-token.php';
 
@@ -25,7 +26,7 @@ public static function setUpBeforeClass(): void {
 	}
 
 	public function setUp(): void {
-		$this->driver = new WP_SQLite_Driver( new PDO( 'sqlite::memory:' ) );
+		$this->driver = new WP_SQLite_Driver( 'wp', new PDO( 'sqlite::memory:' ) );
 	}
 
 	public function testSelect(): void {
@@ -206,22 +207,104 @@ public function testCreateTable(): void {
 			'CREATE TABLE t (id INT)'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'id', 1, null, 'YES', 'int', null, null, 10, 0, null, null, null, 'int', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testCreateTableWithMultipleColumns(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "id" INTEGER , "name" TEXT , "score" REAL DEFAULT 0.0 )',
+			'CREATE TABLE "t" ( "id" INTEGER, "name" TEXT, "score" REAL DEFAULT \'0.0\' )',
 			'CREATE TABLE t (id INT, name TEXT, score FLOAT DEFAULT 0.0)'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'id', 1, null, 'YES', 'int', null, null, 10, 0, null, null, null, 'int', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'name', 2, null, 'YES', 'text', 65535, 65535, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'text', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'score', 3, '0.0', 'YES', 'float', null, null, 12, null, null, null, null, 'float', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testCreateTableWithBasicConstraints(): void {
 		$this->assertQuery(
 			'CREATE TABLE "t" ( "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT )',
 			'CREATE TABLE t (id INT NOT NULL PRIMARY KEY AUTO_INCREMENT)'
 		);
 
-		// ENGINE is not supported in SQLite.
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'id', 1, null, 'NO', 'int', null, null, 10, 0, null, null, null, 'int', 'PRI', 'auto_increment', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_statistics (table_schema, table_name, non_unique, index_schema, index_name, seq_in_index, column_name, collation, cardinality, sub_part, packed, nullable, index_type, comment, index_comment, is_visible, expression)'
+					. " VALUES ('wp', 't', 0, 'wp', 'PRIMARY', 1, 'id', 'A', 0, null, null, '', 'BTREE', '', '', 'YES', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testCreateTableWithEngine(): void {
+		// ENGINE is not supported in SQLite, we save it in information schema.
+		$this->assertQuery(
+			'CREATE TABLE "t" ( "id" INTEGER )',
+			'CREATE TABLE t (id INT) ENGINE=MyISAM'
+		);
+
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'MyISAM', 'FIXED', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'id', 1, null, 'YES', 'int', null, null, 10, 0, null, null, null, 'int', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testCreateTableWithCollate(): void {
+		// COLLATE is not supported in SQLite, we save it in information schema.
 		$this->assertQuery(
 			'CREATE TABLE "t" ( "id" INTEGER )',
-			'CREATE TABLE t (id INT) ENGINE=InnoDB'
+			'CREATE TABLE t (id INT) COLLATE utf8mb4_czech_ci'
+		);
+
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_czech_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'id', 1, null, 'YES', 'int', null, null, 10, 0, null, null, null, 'int', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
 		);
+	}
 
+	public function testCreateTableWithPrimaryKey(): void {
 		/*
 		 * PRIMARY KEY without AUTOINCREMENT:
 		 * In this case, integer must be represented as INT, not INTEGER. SQLite
@@ -232,34 +315,151 @@ public function testCreateTable(): void {
 		 *  https://www.sqlite.org/lang_createtable.html#rowids_and_the_integer_primary_key
 		 */
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "id" INT PRIMARY KEY )',
+			'CREATE TABLE "t" ( "id" INT NOT NULL, PRIMARY KEY ("id") )',
 			'CREATE TABLE t (id INT PRIMARY KEY)'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'id', 1, null, 'NO', 'int', null, null, 10, 0, null, null, null, 'int', 'PRI', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_statistics (table_schema, table_name, non_unique, index_schema, index_name, seq_in_index, column_name, collation, cardinality, sub_part, packed, nullable, index_type, comment, index_comment, is_visible, expression)'
+					. " VALUES ('wp', 't', 0, 'wp', 'PRIMARY', 1, 'id', 'A', 0, null, null, '', 'BTREE', '', '', 'YES', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testCreateTableWithPrimaryKeyAndAutoincrement(): void {
 		// With AUTOINCREMENT, we expect "INTEGER".
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "id" INTEGER PRIMARY KEY AUTOINCREMENT )',
-			'CREATE TABLE t (id INT PRIMARY KEY AUTO_INCREMENT)'
+			'CREATE TABLE "t1" ( "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT )',
+			'CREATE TABLE t1 (id INT PRIMARY KEY AUTO_INCREMENT)'
+		);
+
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't1', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't1', 'id', 1, null, 'NO', 'int', null, null, 10, 0, null, null, null, 'int', 'PRI', 'auto_increment', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_statistics (table_schema, table_name, non_unique, index_schema, index_name, seq_in_index, column_name, collation, cardinality, sub_part, packed, nullable, index_type, comment, index_comment, is_visible, expression)'
+					. " VALUES ('wp', 't1', 0, 'wp', 'PRIMARY', 1, 'id', 'A', 0, null, null, '', 'BTREE', '', '', 'YES', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't1'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't1'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't1'",
+			)
 		);
 
 		// In SQLite, PRIMARY KEY must come before AUTOINCREMENT.
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "id" INTEGER PRIMARY KEY AUTOINCREMENT )',
-			'CREATE TABLE t (id INT AUTO_INCREMENT PRIMARY KEY)'
+			'CREATE TABLE "t2" ( "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT )',
+			'CREATE TABLE t2 (id INT AUTO_INCREMENT PRIMARY KEY)'
+		);
+
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't2', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't2', 'id', 1, null, 'NO', 'int', null, null, 10, 0, null, null, null, 'int', 'PRI', 'auto_increment', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_statistics (table_schema, table_name, non_unique, index_schema, index_name, seq_in_index, column_name, collation, cardinality, sub_part, packed, nullable, index_type, comment, index_comment, is_visible, expression)'
+					. " VALUES ('wp', 't2', 0, 'wp', 'PRIMARY', 1, 'id', 'A', 0, null, null, '', 'BTREE', '', '', 'YES', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't2'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't2'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't2'",
+			)
 		);
 
 		// In SQLite, AUTOINCREMENT cannot be specified separately from PRIMARY KEY.
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "id" INTEGER PRIMARY KEY AUTOINCREMENT )',
-			'CREATE TABLE t (id INT AUTO_INCREMENT, PRIMARY KEY(id))'
+			'CREATE TABLE "t3" ( "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT )',
+			'CREATE TABLE t3 (id INT AUTO_INCREMENT, PRIMARY KEY(id))'
+		);
+
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't3', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't3', 'id', 1, null, 'YES', 'int', null, null, 10, 0, null, null, null, 'int', '', 'auto_increment', 'select,insert,update,references', '', '', null)",
+				"SELECT column_name, data_type, is_nullable, character_maximum_length FROM _mysql_information_schema_columns WHERE table_name = 't3' AND column_name IN ('id')",
+				'INSERT INTO _mysql_information_schema_statistics (table_schema, table_name, non_unique, index_schema, index_name, seq_in_index, column_name, collation, cardinality, sub_part, packed, nullable, index_type, comment, index_comment, is_visible, expression)'
+					. " VALUES ('wp', 't3', 0, 'wp', 'PRIMARY', 1, 'id', 'A', 0, null, null, '', 'BTREE', '', '', 'YES', null)",
+				"UPDATE _mysql_information_schema_columns AS c SET column_key = CASE WHEN s.index_name = 'PRIMARY' THEN 'PRI' WHEN s.non_unique = 0 AND s.seq_in_index = 1 THEN 'UNI' WHEN s.seq_in_index = 1 THEN 'MUL' ELSE '' END, is_nullable = CASE WHEN s.nullable = 'YES' THEN 'YES' ELSE 'NO' END FROM _mysql_information_schema_statistics AS s WHERE c.table_name = 't3' AND c.table_name = s.table_name AND c.column_name = s.column_name",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't3'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't3'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't3'",
+			)
 		);
+	}
 
-		// IF NOT EXISTS.
+	// @TODO: IF NOT EXISTS
+	/*public function testCreateTableWithIfNotExists(): void {
 		$this->assertQuery(
 			'CREATE TABLE IF NOT EXISTS "t" ( "id" INTEGER )',
 			'CREATE TABLE IF NOT EXISTS t (id INT)'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'id', 1, null, 'YES', 'int', null, null, 10, 0, null, null, null, 'int', '', '', 'select,insert,update,references', '', '', null)",
+			)
+		);
+	}*/
+
+	public function testCreateTableWithInlineUniqueIndexes(): void {
+		$this->assertQuery(
+			array(
+				'CREATE TABLE "t" ( "id" INTEGER, "name" TEXT )',
+				'CREATE UNIQUE INDEX "id" ON "t" ("id")',
+				'CREATE UNIQUE INDEX "name" ON "t" ("name")',
+			),
+			'CREATE TABLE t (id INT UNIQUE, name TEXT UNIQUE)'
+		);
+	}
+
+	public function testCreateTableWithStandaloneUniqueIndexes(): void {
+		$this->assertQuery(
+			array(
+				'CREATE TABLE "t" ( "id" INTEGER, "name" TEXT )',
+				'CREATE UNIQUE INDEX "id" ON "t" ("id")',
+				'CREATE UNIQUE INDEX "name" ON "t" ("name")',
+			),
+			'CREATE TABLE t (id INT, name VARCHAR(100), UNIQUE (id), UNIQUE (name))'
+		);
+
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'id', 1, null, 'YES', 'int', null, null, 10, 0, null, null, null, 'int', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'name', 2, null, 'YES', 'varchar', 100, 400, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'varchar(100)', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT column_name, data_type, is_nullable, character_maximum_length FROM _mysql_information_schema_columns WHERE table_name = 't' AND column_name IN ('id')",
+				'INSERT INTO _mysql_information_schema_statistics (table_schema, table_name, non_unique, index_schema, index_name, seq_in_index, column_name, collation, cardinality, sub_part, packed, nullable, index_type, comment, index_comment, is_visible, expression)'
+					. " VALUES ('wp', 't', 0, 'wp', 'id', 1, 'id', 'A', 0, null, null, 'YES', 'BTREE', '', '', 'YES', null)",
+				"UPDATE _mysql_information_schema_columns AS c SET column_key = CASE WHEN s.index_name = 'PRIMARY' THEN 'PRI' WHEN s.non_unique = 0 AND s.seq_in_index = 1 THEN 'UNI' WHEN s.seq_in_index = 1 THEN 'MUL' ELSE '' END, is_nullable = CASE WHEN s.nullable = 'YES' THEN 'YES' ELSE 'NO' END FROM _mysql_information_schema_statistics AS s WHERE c.table_name = 't' AND c.table_name = s.table_name AND c.column_name = s.column_name",
+				"SELECT column_name, data_type, is_nullable, character_maximum_length FROM _mysql_information_schema_columns WHERE table_name = 't' AND column_name IN ('name')",
+				'INSERT INTO _mysql_information_schema_statistics (table_schema, table_name, non_unique, index_schema, index_name, seq_in_index, column_name, collation, cardinality, sub_part, packed, nullable, index_type, comment, index_comment, is_visible, expression)'
+					. " VALUES ('wp', 't', 0, 'wp', 'name', 1, 'name', 'A', 0, null, null, 'YES', 'BTREE', '', '', 'YES', null)",
+				"UPDATE _mysql_information_schema_columns AS c SET column_key = CASE WHEN s.index_name = 'PRIMARY' THEN 'PRI' WHEN s.non_unique = 0 AND s.seq_in_index = 1 THEN 'UNI' WHEN s.seq_in_index = 1 THEN 'MUL' ELSE '' END, is_nullable = CASE WHEN s.nullable = 'YES' THEN 'YES' ELSE 'NO' END FROM _mysql_information_schema_statistics AS s WHERE c.table_name = 't' AND c.table_name = s.table_name AND c.column_name = s.column_name",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testCreateTableFromSelectQuery(): void {
 		// CREATE TABLE AS SELECT ...
 		$this->assertQuery(
 			'CREATE TABLE "t1" AS SELECT * FROM "t2"',
@@ -272,160 +472,530 @@ public function testCreateTable(): void {
 			'CREATE TABLE "t1" AS SELECT * FROM "t2"',
 			'CREATE TABLE t1 SELECT * FROM t2'
 		);
+	}
 
-		// TEMPORARY.
+	// @TODO: CREATE TEMPORARY TABLE
+	/*public yunction testCreateTemporaryTable(): void {
 		$this->assertQuery(
 			'CREATE TEMPORARY TABLE "t" ( "id" INTEGER )',
 			'CREATE TEMPORARY TABLE t (id INT)'
 		);
 
-		// TEMPORARY & IF NOT EXISTS.
+		// With IF NOT EXISTS.
 		$this->assertQuery(
 			'CREATE TEMPORARY TABLE IF NOT EXISTS "t" ( "id" INTEGER )',
 			'CREATE TEMPORARY TABLE IF NOT EXISTS t (id INT)'
 		);
+	}*/
+
+	public function testAlterTableAddColumn(): void {
+		$this->assertQuery(
+			'ALTER TABLE "t" ADD COLUMN "a" INTEGER',
+			'ALTER TABLE t ADD a INT'
+		);
+	}
+
+	public function testAlterTableAddColumnWithNotNull(): void {
+		$this->assertQuery(
+			'ALTER TABLE "t" ADD COLUMN "a" INTEGER NOT NULL',
+			'ALTER TABLE t ADD a INT NOT NULL'
+		);
 	}
 
-	public function testAlterTable(): void {
-		// Prepare a real table, so we can test multi-operation alter statements.
-		// Otherwise, we'd hit and exception and rollback after the first query.
+	public function testAlterTableAddColumnWithDefault(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "id" INTEGER PRIMARY KEY AUTOINCREMENT )',
-			'CREATE TABLE t (id INT PRIMARY KEY AUTO_INCREMENT)'
+			'ALTER TABLE "t" ADD COLUMN "a" INTEGER DEFAULT 0',
+			'ALTER TABLE t ADD a INT DEFAULT 0'
 		);
+	}
 
-		// ADD COLUMN.
+	public function testAlterTableAddColumnWithNotNullAndDefault(): void {
 		$this->assertQuery(
-			'ALTER TABLE "t" ADD COLUMN "a" INTEGER',
-			'ALTER TABLE t ADD a INT'
+			'ALTER TABLE "t" ADD COLUMN "a" INTEGER NOT NULL DEFAULT 0',
+			'ALTER TABLE t ADD a INT NOT NULL DEFAULT 0'
 		);
+	}
 
-		// ADD COLUMN with multiple columns.
+	public function testAlterTableAddMultipleColumns(): void {
+		$this->driver->get_pdo()->exec( 'CREATE TABLE t (id INT)' );
 		$this->assertQuery(
 			array(
-				'ALTER TABLE "t" ADD COLUMN "b" INTEGER',
-				'ALTER TABLE "t" ADD COLUMN "c" TEXT',
-				'ALTER TABLE "t" ADD COLUMN "d" INTEGER',
+				'ALTER TABLE "t" ADD COLUMN "a" INTEGER',
+				'ALTER TABLE "t" ADD COLUMN "b" TEXT',
+				'ALTER TABLE "t" ADD COLUMN "c" INTEGER',
 			),
-			'ALTER TABLE t ADD b INT, ADD c TEXT, ADD d BOOL'
+			'ALTER TABLE t ADD a INT, ADD b TEXT, ADD c BOOL'
 		);
+	}
 
-		// DROP COLUMN.
+	public function testAlterTableDropColumn(): void {
 		$this->assertQuery(
 			'ALTER TABLE "t" DROP COLUMN "a"',
 			'ALTER TABLE t DROP a'
 		);
+	}
 
-		// DROP COLUMN with multiple columns.
+	public function testAlterTableDropMultipleColumns(): void {
+		$this->driver->get_pdo()->exec( 'CREATE TABLE t (a INT, b INT)' );
 		$this->assertQuery(
 			array(
+				'ALTER TABLE "t" DROP COLUMN "a"',
 				'ALTER TABLE "t" DROP COLUMN "b"',
-				'ALTER TABLE "t" DROP COLUMN "c"',
 			),
-			'ALTER TABLE t DROP b, DROP c'
+			'ALTER TABLE t DROP a, DROP b'
 		);
+	}
 
-		// ADD COLUMN and DROP COLUMN combined.
+	public function testAlterTableAddAndDropColumns(): void {
+		$this->driver->get_pdo()->exec( 'CREATE TABLE t (a INT)' );
 		$this->assertQuery(
 			array(
-				'ALTER TABLE "t" ADD COLUMN "a" INTEGER',
-				'ALTER TABLE "t" DROP COLUMN "d"',
+				'ALTER TABLE "t" ADD COLUMN "b" INTEGER',
+				'ALTER TABLE "t" DROP COLUMN "a"',
 			),
-			'ALTER TABLE t ADD a INT, DROP d'
+			'ALTER TABLE t ADD b INT, DROP a'
+		);
+	}
+
+	public function testBitDataTypes(): void {
+		$this->assertQuery(
+			'CREATE TABLE "t" ( "i1" INTEGER, "i2" INTEGER )',
+			'CREATE TABLE t (i1 BIT, i2 BIT(10))'
+		);
+
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'i1', 1, null, 'YES', 'bit', null, null, 1, null, null, null, null, 'bit(1)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'i2', 2, null, 'YES', 'bit', null, null, 10, null, null, null, null, 'bit(10)', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
 		);
 	}
 
-	public function testDataTypes(): void {
-		// Numeric data types.
+	public function testBooleanDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "i1" INTEGER , "i2" INTEGER , "i3" INTEGER )',
-			'CREATE TABLE t (i1 BIT, i2 BOOL, i3 BOOLEAN)'
+			'CREATE TABLE "t" ( "i1" INTEGER, "i2" INTEGER )',
+			'CREATE TABLE t (i1 BOOL, i2 BOOLEAN)'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'i1', 1, null, 'YES', 'tinyint', null, null, 3, 0, null, null, null, 'tinyint(1)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'i2', 2, null, 'YES', 'tinyint', null, null, 3, 0, null, null, null, 'tinyint(1)', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testIntegerDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "i1" INTEGER , "i2" INTEGER , "i3" INTEGER , "i4" INTEGER , "i5" INTEGER , "i6" INTEGER )',
+			'CREATE TABLE "t" ( "i1" INTEGER, "i2" INTEGER, "i3" INTEGER, "i4" INTEGER, "i5" INTEGER, "i6" INTEGER )',
 			'CREATE TABLE t (i1 TINYINT, i2 SMALLINT, i3 MEDIUMINT, i4 INT, i5 INTEGER, i6 BIGINT)'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'i1', 1, null, 'YES', 'tinyint', null, null, 3, 0, null, null, null, 'tinyint', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'i2', 2, null, 'YES', 'smallint', null, null, 5, 0, null, null, null, 'smallint', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'i3', 3, null, 'YES', 'mediumint', null, null, 7, 0, null, null, null, 'mediumint', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'i4', 4, null, 'YES', 'int', null, null, 10, 0, null, null, null, 'int', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'i5', 5, null, 'YES', 'int', null, null, 10, 0, null, null, null, 'int', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'i6', 6, null, 'YES', 'bigint', null, null, 19, 0, null, null, null, 'bigint', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testFloatDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "f1" REAL , "f2" REAL , "f3" REAL , "f4" REAL )',
+			'CREATE TABLE "t" ( "f1" REAL, "f2" REAL, "f3" REAL, "f4" REAL )',
 			'CREATE TABLE t (f1 FLOAT, f2 DOUBLE, f3 DOUBLE PRECISION, f4 REAL)'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'f1', 1, null, 'YES', 'float', null, null, 12, null, null, null, null, 'float', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'f2', 2, null, 'YES', 'double', null, null, 22, null, null, null, null, 'double', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'f3', 3, null, 'YES', 'double', null, null, 22, null, null, null, null, 'double', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'f4', 4, null, 'YES', 'double', null, null, 22, null, null, null, null, 'double', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testDecimalTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "f1" REAL , "f2" REAL , "f3" REAL , "f4" REAL )',
+			'CREATE TABLE "t" ( "f1" REAL, "f2" REAL, "f3" REAL, "f4" REAL )',
 			'CREATE TABLE t (f1 DECIMAL, f2 DEC, f3 FIXED, f4 NUMERIC)'
 		);
 
-		// String data types.
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'f1', 1, null, 'YES', 'decimal', null, null, 10, 0, null, null, null, 'decimal(10,0)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'f2', 2, null, 'YES', 'decimal', null, null, 10, 0, null, null, null, 'decimal(10,0)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'f3', 3, null, 'YES', 'decimal', null, null, 10, 0, null, null, null, 'decimal(10,0)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'f4', 4, null, 'YES', 'decimal', null, null, 10, 0, null, null, null, 'decimal(10,0)', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testCharDataTypes(): void {
+		$this->assertQuery(
+			'CREATE TABLE "t" ( "c1" TEXT, "c2" TEXT )',
+			'CREATE TABLE t (c1 CHAR, c2 CHAR(10))'
+		);
+
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c1', 1, null, 'YES', 'char', 1, 4, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'char(1)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c2', 2, null, 'YES', 'char', 10, 40, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'char(10)', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testVarcharDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "c1" TEXT , "c2" TEXT , "c3" TEXT , "c4" TEXT )',
-			'CREATE TABLE t (c1 CHAR, c2 VARCHAR(255), c3 CHAR VARYING(255), c4 CHARACTER VARYING(255))'
+			'CREATE TABLE "t" ( "c1" TEXT, "c2" TEXT, "c3" TEXT )',
+			'CREATE TABLE t (c1 VARCHAR(255), c2 CHAR VARYING(255), c3 CHARACTER VARYING(255))'
+		);
+
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c1', 1, null, 'YES', 'varchar', 255, 1020, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'varchar(255)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c2', 2, null, 'YES', 'varchar', 255, 1020, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'varchar(255)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c3', 3, null, 'YES', 'varchar', 255, 1020, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'varchar(255)', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
 		);
+	}
 
+	public function testNationalCharDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "c1" TEXT , "c2" TEXT )',
-			'CREATE TABLE t (c1 NATIONAL CHAR, c2 NCHAR)'
+			'CREATE TABLE "t" ( "c1" TEXT, "c2" TEXT, "c3" TEXT, "c4" TEXT )',
+			'CREATE TABLE t (c1 NATIONAL CHAR, c2 NCHAR, c3 NATIONAL CHAR (10), c4 NCHAR(10))'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c1', 1, null, 'YES', 'char', 1, 3, null, null, null, 'utf8', 'utf8_general_ci', 'char(1)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c2', 2, null, 'YES', 'char', 1, 3, null, null, null, 'utf8', 'utf8_general_ci', 'char(1)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c3', 3, null, 'YES', 'char', 10, 30, null, null, null, 'utf8', 'utf8_general_ci', 'char(10)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c4', 4, null, 'YES', 'char', 10, 30, null, null, null, 'utf8', 'utf8_general_ci', 'char(10)', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testNcharVarcharDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "c1" TEXT , "c2" TEXT , "c3" TEXT )',
+			'CREATE TABLE "t" ( "c1" TEXT, "c2" TEXT, "c3" TEXT )',
 			'CREATE TABLE t (c1 NCHAR VARCHAR(255), c2 NCHAR VARYING(255), c3 NVARCHAR(255))'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c1', 1, null, 'YES', 'varchar', 255, 765, null, null, null, 'utf8', 'utf8_general_ci', 'varchar(255)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c2', 2, null, 'YES', 'varchar', 255, 765, null, null, null, 'utf8', 'utf8_general_ci', 'varchar(255)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c3', 3, null, 'YES', 'varchar', 255, 765, null, null, null, 'utf8', 'utf8_general_ci', 'varchar(255)', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testNationalVarcharDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "c1" TEXT , "c2" TEXT , "c3" TEXT )',
+			'CREATE TABLE "t" ( "c1" TEXT, "c2" TEXT, "c3" TEXT )',
 			'CREATE TABLE t (c1 NATIONAL VARCHAR(255), c2 NATIONAL CHAR VARYING(255), c3 NATIONAL CHARACTER VARYING(255))'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c1', 1, null, 'YES', 'varchar', 255, 765, null, null, null, 'utf8', 'utf8_general_ci', 'varchar(255)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c2', 2, null, 'YES', 'varchar', 255, 765, null, null, null, 'utf8', 'utf8_general_ci', 'varchar(255)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'c3', 3, null, 'YES', 'varchar', 255, 765, null, null, null, 'utf8', 'utf8_general_ci', 'varchar(255)', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testTextDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "t1" TEXT , "t2" TEXT , "t3" TEXT , "t4" TEXT )',
+			'CREATE TABLE "t" ( "t1" TEXT, "t2" TEXT, "t3" TEXT, "t4" TEXT )',
 			'CREATE TABLE t (t1 TINYTEXT, t2 TEXT, t3 MEDIUMTEXT, t4 LONGTEXT)'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 't1', 1, null, 'YES', 'tinytext', 255, 255, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'tinytext', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 't2', 2, null, 'YES', 'text', 65535, 65535, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'text', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 't3', 3, null, 'YES', 'mediumtext', 16777215, 16777215, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'mediumtext', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 't4', 4, null, 'YES', 'longtext', 4294967295, 4294967295, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'longtext', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testEnumDataTypes(): void {
 		$this->assertQuery(
 			'CREATE TABLE "t" ( "e" TEXT )',
 			'CREATE TABLE t (e ENUM("a", "b", "c"))'
 		);
 
-		// Date and time data types.
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'e', 1, null, 'YES', 'enum', 1, 4, null, null, null, 'utf8mb4', 'utf8mb4_general_ci', 'enum(''a'',''b'',''c'')', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testDateAndTimeDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "d" TEXT , "t" TEXT , "dt" TEXT , "ts" TEXT , "y" TEXT )',
+			'CREATE TABLE "t" ( "d" TEXT, "t" TEXT, "dt" TEXT, "ts" TEXT, "y" TEXT )',
 			'CREATE TABLE t (d DATE, t TIME, dt DATETIME, ts TIMESTAMP, y YEAR)'
 		);
 
-		// Binary data types.
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'd', 1, null, 'YES', 'date', null, null, null, null, null, null, null, 'date', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 't', 2, null, 'YES', 'time', null, null, null, null, 0, null, null, 'time', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'dt', 3, null, 'YES', 'datetime', null, null, null, null, 0, null, null, 'datetime', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'ts', 4, null, 'YES', 'timestamp', null, null, null, null, 0, null, null, 'timestamp', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'y', 5, null, 'YES', 'year', null, null, null, null, null, null, null, 'year', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testBinaryDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "b" INTEGER , "v" BLOB )',
+			'CREATE TABLE "t" ( "b" INTEGER, "v" BLOB )',
 			'CREATE TABLE t (b BINARY, v VARBINARY(255))'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'b', 1, null, 'YES', 'binary', 1, 1, null, null, null, null, null, 'binary(1)', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'v', 2, null, 'YES', 'varbinary', 255, 255, null, null, null, null, null, 'varbinary(255)', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testBlobDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "b1" BLOB , "b2" BLOB , "b3" BLOB , "b4" BLOB )',
+			'CREATE TABLE "t" ( "b1" BLOB, "b2" BLOB, "b3" BLOB, "b4" BLOB )',
 			'CREATE TABLE t (b1 TINYBLOB, b2 BLOB, b3 MEDIUMBLOB, b4 LONGBLOB)'
 		);
 
-		// Spatial data types.
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'b1', 1, null, 'YES', 'tinyblob', 255, 255, null, null, null, null, null, 'tinyblob', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'b2', 2, null, 'YES', 'blob', 65535, 65535, null, null, null, null, null, 'blob', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'b3', 3, null, 'YES', 'mediumblob', 16777215, 16777215, null, null, null, null, null, 'mediumblob', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'b4', 4, null, 'YES', 'longblob', 4294967295, 4294967295, null, null, null, null, null, 'longblob', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testBasicSpatialDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "g1" TEXT , "g2" TEXT , "g3" TEXT , "g4" TEXT )',
+			'CREATE TABLE "t" ( "g1" TEXT, "g2" TEXT, "g3" TEXT, "g4" TEXT )',
 			'CREATE TABLE t (g1 GEOMETRY, g2 POINT, g3 LINESTRING, g4 POLYGON)'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'g1', 1, null, 'YES', 'geometry', null, null, null, null, null, null, null, 'geometry', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'g2', 2, null, 'YES', 'point', null, null, null, null, null, null, null, 'point', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'g3', 3, null, 'YES', 'linestring', null, null, null, null, null, null, null, 'linestring', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'g4', 4, null, 'YES', 'polygon', null, null, null, null, null, null, null, 'polygon', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testMultiObjectSpatialDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "g1" TEXT , "g2" TEXT , "g3" TEXT )',
+			'CREATE TABLE "t" ( "g1" TEXT, "g2" TEXT, "g3" TEXT )',
 			'CREATE TABLE t (g1 MULTIPOINT, g2 MULTILINESTRING, g3 MULTIPOLYGON)'
 		);
 
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'g1', 1, null, 'YES', 'multipoint', null, null, null, null, null, null, null, 'multipoint', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'g2', 2, null, 'YES', 'multilinestring', null, null, null, null, null, null, null, 'multilinestring', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'g3', 3, null, 'YES', 'multipolygon', null, null, null, null, null, null, null, 'multipolygon', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testGeometryCollectionDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "g1" TEXT , "g2" TEXT )',
+			'CREATE TABLE "t" ( "g1" TEXT, "g2" TEXT )',
 			'CREATE TABLE t (g1 GEOMCOLLECTION, g2 GEOMETRYCOLLECTION)'
 		);
 
-		// SERIAL
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'g1', 1, null, 'YES', 'geomcollection', null, null, null, null, null, null, null, 'geomcollection', '', '', 'select,insert,update,references', '', '', null)",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'g2', 2, null, 'YES', 'geomcollection', null, null, null, null, null, null, null, 'geomcollection', '', '', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
+	}
+
+	public function testSerialDataTypes(): void {
 		$this->assertQuery(
-			'CREATE TABLE "t" ( "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT UNIQUE )',
+			'CREATE TABLE "t" ( "id" INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT )',
 			'CREATE TABLE t (id SERIAL)'
 		);
+
+		$this->assertExecutedInformationSchemaQueries(
+			array(
+				'INSERT INTO _mysql_information_schema_tables (table_schema, table_name, table_type, engine, row_format, table_collation)'
+					. " VALUES ('wp', 't', 'BASE TABLE', 'InnoDB', 'DYNAMIC', 'utf8mb4_general_ci')",
+				'INSERT INTO _mysql_information_schema_columns (table_schema, table_name, column_name, ordinal_position, column_default, is_nullable, data_type, character_maximum_length, character_octet_length, numeric_precision, numeric_scale, datetime_precision, character_set_name, collation_name, column_type, column_key, extra, privileges, column_comment, generation_expression, srs_id)'
+					. " VALUES ('wp', 't', 'id', 1, null, 'NO', 'bigint', null, null, 20, 0, null, null, null, 'bigint unsigned', 'PRI', 'auto_increment', 'select,insert,update,references', '', '', null)",
+				"SELECT * FROM _mysql_information_schema_tables WHERE table_type = \"BASE TABLE\" AND table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_columns WHERE table_schema = 'wp' AND table_name = 't'",
+				"SELECT * FROM _mysql_information_schema_statistics WHERE table_schema = 'wp' AND table_name = 't'",
+			)
+		);
 	}
 
 	public function testSystemVariables(): void {
@@ -465,6 +1035,16 @@ private function assertQuery( $expected, string $query ): void {
 			$executed_queries = array_values( array_slice( $executed_queries, 1, -1, true ) );
 		}
 
+		// Remove "information_schema" queries.
+		$executed_queries = array_values(
+			array_filter(
+				$executed_queries,
+				function ( $query ) {
+					return ! str_contains( $query, '_mysql_information_schema_' );
+				}
+			)
+		);
+
 		// Remove "select changes()" executed after some queries.
 		if (
 			count( $executed_queries ) > 1
@@ -475,6 +1055,44 @@ private function assertQuery( $expected, string $query ): void {
 		if ( ! is_array( $expected ) ) {
 			$expected = array( $expected );
 		}
+
+		// Normalize whitespace.
+		foreach ( $executed_queries as $key => $executed_query ) {
+			$executed_queries[ $key ] = trim( preg_replace( '/\s+/', ' ', $executed_query ) );
+		}
+
 		$this->assertSame( $expected, $executed_queries );
 	}
+
+	private function assertExecutedInformationSchemaQueries( array $expected ): void {
+		// Collect and normalize "information_schema" queries.
+		$queries = array();
+		foreach ( $this->driver->executed_sqlite_queries as $query ) {
+			if ( ! str_contains( $query['sql'], '_mysql_information_schema_' ) ) {
+				continue;
+			}
+
+			// Normalize whitespace.
+			$sql = trim( preg_replace( '/\s+/', ' ', $query['sql'] ) );
+
+			// Inline parameters.
+			$sql       = str_replace( '?', '%s', $sql );
+			$queries[] = sprintf(
+				$sql,
+				...array_map(
+					function ( $param ) {
+						if ( null === $param ) {
+							return 'null';
+						}
+						if ( is_string( $param ) ) {
+							return $this->driver->get_pdo()->quote( $param );
+						}
+						return $param;
+					},
+					$query['params']
+				)
+			);
+		}
+		$this->assertSame( $expected, $queries );
+	}
 }