PS-5035 : rocksdb.show_table_status: 1051: Unknown table 'db_new'

sql/partitioning/partition_base.cc

@@ -207,10 +207,10 @@ bool get_part_str_for_table(const char *name, std::string &result)
                                         table_name, sizeof(table_name));
 
   // Prepare the path to the .FRM file and open the file
+  // The 'name' is coming into this function already encoded in fscs.
   char    path[FN_REFLEN + 1];  //< Path to .FRM file
-  bool temp_table= (bool)is_prefix(table_name, tmp_file_prefix);
   build_table_filename(path, sizeof(path) - 1, db_name, table_name, reg_ext,
-                       temp_table ? FN_IS_TMP : 0);
+                       FN_IS_ENCODED);
 
   return get_part_str_for_path(path, result);
 }

sql/sql_table.cc

@@ -573,12 +573,16 @@ size_t build_table_filename(char *buff, size_t bufflen, const char *db,
   DBUG_PRINT("enter", ("db: '%s'  table_name: '%s'  ext: '%s'  flags: %x",
                        db, table_name, ext, flags));
 
-  if (flags & FN_IS_TMP) // FN_FROM_IS_TMP | FN_TO_IS_TMP
+  if ((flags & FN_IS_TMP) ||  // FN_FROM_IS_TMP | FN_TO_IS_TMP
+      (flags & FN_IS_ENCODED))
     tab_len= my_stpnmov(tbbuff, table_name, sizeof(tbbuff)) - tbbuff;
   else
     tab_len= tablename_to_filename(table_name, tbbuff, sizeof(tbbuff));
 
-  db_len= tablename_to_filename(db, dbbuff, sizeof(dbbuff));
+  if (flags & FN_IS_ENCODED)
+    db_len= my_stpnmov(dbbuff, db, sizeof(dbbuff)) - dbbuff;
+  else
+    db_len= tablename_to_filename(db, dbbuff, sizeof(dbbuff));
 
   char *end = buff + bufflen;
   /* Don't add FN_ROOTDIR if mysql_data_home already includes it */

sql/sql_table.h

@@ -144,6 +144,8 @@ static const uint FRM_ONLY=        1 << 3;
 static const uint NO_HA_TABLE=     1 << 4;
 /** Don't check foreign key constraints while renaming table */
 static const uint NO_FK_CHECKS=    1 << 5;
+/** Percona : Database and table name are encoded in fscs already */
+static const uint FN_IS_ENCODED=   1 << 6;
 
 size_t filename_to_tablename(const char *from, char *to, size_t to_length
 #ifndef DBUG_OFF