add support for sqlserver dialect, #197

.github/workflows/go.yml

@@ -7,18 +7,21 @@ on:
   pull_request:  # Specify a second event with pattern matching
 jobs:
   test:
-    name: Test go - ${{ matrix.go_version }} mysql - ${{ matrix.db_versions.mysql_version}} postgres - ${{ matrix.db_versions.postgres_version}}
+    name: Test go - ${{ matrix.go_version }} mysql - ${{ matrix.db_versions.mysql_version}} postgres - ${{ matrix.db_versions.postgres_version}} sqlserver- ${{ matrix.db_versions.sqlserver_version}}
     runs-on: ubuntu-latest
     strategy:
       matrix:
         go_version: ["1.10", "1.11", "latest"]
         db_versions:
         - mysql_version: 5
           postgres_version: 9.6
+          sqlserver_version: "2017-CU8-ubuntu"
         - mysql_version: 5
           postgres_version: "10.10"
+          sqlserver_version: "2017-CU8-ubuntu"
         - mysql_version: 8
           postgres_version: 11.5
+          sqlserver_version: "2017-CU8-ubuntu"
     steps:
     - name: checkout
       uses: actions/checkout@v1
@@ -27,6 +30,7 @@ jobs:
         GO_VERSION: ${{ matrix.go_version }}
         MYSQL_VERSION: ${{ matrix.db_versions.mysql_version }}
         POSTGRES_VERSION: ${{ matrix.db_versions.postgres_version }}
+        SQLSERVER_VERSION: ${{ matrix.db.versions.sqlserver_version }}
       run: docker-compose run goqu-coverage
     - name: Upload coverage to Codecov
       run: bash <(curl -s https://codecov.io/bash) -t $CODECOV_TOKEN -n $GO_VERSION -e GO_VERSION,MYSQL_VERSION,POSTGRES_VERSION,GITHUB_WORKFLOW,GITHUB_ACTION
@@ -35,3 +39,4 @@ jobs:
         GO_VERSION: ${{ matrix.go_version }}
         MYSQL_VERSION: ${{ matrix.db_versions.mysql_version }}
         POSTGRES_VERSION: ${{ matrix.db_versions.postgres_version }}
+        SQLSERVER_VERSION: ${{ matrix.db.versions.sqlserver_version }}

dialect/mysql/mysql.go

@@ -23,7 +23,7 @@ func DialectOptions() *goqu.SQLDialectOptions {
 
 	opts.UseFromClauseForMultipleUpdateTables = false
 
-	opts.PlaceHolderRune = '?'
+	opts.PlaceHolderFragment = []byte("?")
 	opts.IncludePlaceholderNum = false
 	opts.QuoteRune = '`'
 	opts.DefaultValuesFragment = []byte("")

dialect/postgres/postgres.go

@@ -6,7 +6,7 @@ import (
 
 func DialectOptions() *goqu.SQLDialectOptions {
 	do := goqu.DefaultDialectOptions()
-	do.PlaceHolderRune = '$'
+	do.PlaceHolderFragment = []byte("$")
 	do.IncludePlaceholderNum = true
 	return do
 }

dialect/sqlite3/sqlite3.go

@@ -22,7 +22,7 @@ func DialectOptions() *goqu.SQLDialectOptions {
 	opts.SupportsWindowFunction = false
 	opts.SupportsLateral = false
 
-	opts.PlaceHolderRune = '?'
+	opts.PlaceHolderFragment = []byte("?")
 	opts.IncludePlaceholderNum = false
 	opts.QuoteRune = '`'
 	opts.DefaultValuesFragment = []byte("")

dialect/sqlserver/sqlserver.go

@@ -0,0 +1,90 @@
+package sqlserver
+
+import (
+	"github.com/doug-martin/goqu/v9"
+	"github.com/doug-martin/goqu/v9/exp"
+	"github.com/doug-martin/goqu/v9/sqlgen"
+)
+
+func DialectOptions() *goqu.SQLDialectOptions {
+	opts := goqu.DefaultDialectOptions()
+
+	opts.UseLiteralIsBools = false
+
+	opts.SupportsReturn = false
+	opts.SupportsOrderByOnUpdate = false
+	opts.SupportsLimitOnUpdate = false
+	opts.SupportsLimitOnDelete = false
+	opts.SupportsOrderByOnDelete = true
+	opts.SupportsConflictUpdateWhere = false
+	opts.SupportsInsertIgnoreSyntax = false
+	opts.SupportsConflictTarget = false
+	opts.SupportsWithCTE = false
+	opts.SupportsWithCTERecursive = false
+	opts.SupportsDistinctOn = false
+	opts.SupportsWindowFunction = false
+
+	opts.PlaceHolderFragment = []byte("@p")
+	opts.LimitFragment = []byte(" TOP ")
+	opts.IncludePlaceholderNum = true
+	opts.DefaultValuesFragment = []byte("")
+	opts.True = []byte("1")
+	opts.False = []byte("0")
+	opts.TimeFormat = "2006-01-02 15:04:05"
+	opts.BooleanOperatorLookup = map[exp.BooleanOperation][]byte{
+		exp.EqOp:             []byte("="),
+		exp.NeqOp:            []byte("!="),
+		exp.GtOp:             []byte(">"),
+		exp.GteOp:            []byte(">="),
+		exp.LtOp:             []byte("<"),
+		exp.LteOp:            []byte("<="),
+		exp.InOp:             []byte("IN"),
+		exp.NotInOp:          []byte("NOT IN"),
+		exp.IsOp:             []byte("="),
+		exp.IsNotOp:          []byte("IS NOT"),
+		exp.LikeOp:           []byte("LIKE"),
+		exp.NotLikeOp:        []byte("NOT LIKE"),
+		exp.ILikeOp:          []byte("LIKE"),
+		exp.NotILikeOp:       []byte("NOT LIKE"),
+		exp.RegexpLikeOp:     []byte("REGEXP BINARY"),
+		exp.RegexpNotLikeOp:  []byte("NOT REGEXP BINARY"),
+		exp.RegexpILikeOp:    []byte("REGEXP"),
+		exp.RegexpNotILikeOp: []byte("NOT REGEXP"),
+	}
+
+	opts.FetchFragment = []byte(" FETCH FIRST ")
+
+	opts.SelectSQLOrder = []sqlgen.SQLFragmentType{
+		sqlgen.CommonTableSQLFragment,
+		sqlgen.SelectWithLimitSQLFragment,
+		sqlgen.FromSQLFragment,
+		sqlgen.JoinSQLFragment,
+		sqlgen.WhereSQLFragment,
+		sqlgen.GroupBySQLFragment,
+		sqlgen.HavingSQLFragment,
+		sqlgen.WindowSQLFragment,
+		sqlgen.CompoundsSQLFragment,
+		sqlgen.OrderWithOffsetFetchSQLFragment,
+		sqlgen.ForSQLFragment,
+	}
+
+	opts.EscapedRunes = map[rune][]byte{
+		'\'': []byte("\\'"),
+		'"':  []byte("\\\""),
+		'\\': []byte("\\\\"),
+		'\n': []byte("\\n"),
+		'\r': []byte("\\r"),
+		0:    []byte("\\x00"),
+		0x1a: []byte("\\x1a"),
+	}
+
+	opts.ConflictFragment = []byte("")
+	opts.ConflictDoUpdateFragment = []byte("")
+	opts.ConflictDoNothingFragment = []byte("")
+
+	return opts
+}
+
+func init() {
+	goqu.RegisterDialect("sqlserver", DialectOptions())
+}