bug#24667 After ALTER TABLE operation ndb_dd table becomes regular ndb: ALTER...

bug#24667  After ALTER TABLE operation ndb_dd table becomes regular ndb: ALTER TABLE must specify STORAGE explicitely to change it, + post review changes

include/my_base.h

@@ -96,6 +96,14 @@ enum ha_key_alg {
   HA_KEY_ALG_FULLTEXT=	4		/* FULLTEXT (MyISAM tables) */
 };
 
+        /* Storage media types */ 
+
+enum ha_storage_media {
+  HA_SM_DEFAULT=        0,		/* Not specified (engine default) */
+  HA_SM_DISK=           1,		/* DISK storage */
+  HA_SM_MEMORY=         2		/* MAIN MEMORY storage */
+};
+
 	/* The following is parameter to ha_extra() */
 
 enum ha_extra_function {

mysql-test/r/ndb_dd_disk2memory.result

@@ -237,7 +237,7 @@ t2	CREATE TABLE `t2` (
   `c2` int(11) NOT NULL,
   PRIMARY KEY (`pk2`)
 ) /*!50100 TABLESPACE table_space1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
-ALTER TABLE test.t1 ENGINE=NDBCLUSTER;
+ALTER TABLE test.t1 STORAGE MEMORY ENGINE=NDBCLUSTER;
 SHOW CREATE TABLE test.t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
@@ -341,7 +341,7 @@ t1	CREATE TABLE `t1` (
   KEY `a2` (`a2`),
   KEY `a3` (`a3`),
   KEY `a8` (`a8`)
-) ENGINE=ndbcluster DEFAULT CHARSET=latin1
+) /*!50100 TABLESPACE table_space1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
 Table	Create Table
 t2	CREATE TABLE `t2` (
   `b1` smallint(6) NOT NULL,

mysql-test/r/rpl_ndb_dd_advance.result

@@ -70,7 +70,7 @@ t1	CREATE TABLE `t1` (
   PRIMARY KEY (`c1`),
   KEY `t1_i` (`c2`,`c3`),
   KEY `c5` (`c5`)
-) ENGINE=ndbcluster DEFAULT CHARSET=latin1
+) /*!50100 TABLESPACE ts1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
 **** Show first set of ALTERs on SLAVE ****
 SHOW CREATE TABLE t1;
 Table	Create Table
@@ -83,7 +83,7 @@ t1	CREATE TABLE `t1` (
   PRIMARY KEY (`c1`),
   KEY `t1_i` (`c2`,`c3`),
   KEY `c5` (`c5`)
-) ENGINE=ndbcluster DEFAULT CHARSET=latin1
+) /*!50100 TABLESPACE ts1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
 **** Second set of alters test 1 ****
 ALTER TABLE t1 RENAME t2;
 ALTER TABLE t2 DROP INDEX c5;
@@ -102,7 +102,7 @@ t1	CREATE TABLE `t1` (
   `c5` double DEFAULT NULL,
   PRIMARY KEY (`c1`),
   KEY `t1_i` (`c2`,`c3`)
-) ENGINE=ndbcluster DEFAULT CHARSET=latin1
+) /*!50100 TABLESPACE ts1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
 **** Show second set of ALTERs on SLAVE ****
 SHOW CREATE TABLE t1;
 Table	Create Table
@@ -114,7 +114,7 @@ t1	CREATE TABLE `t1` (
   `c5` double DEFAULT NULL,
   PRIMARY KEY (`c1`),
   KEY `t1_i` (`c2`,`c3`)
-) ENGINE=ndbcluster DEFAULT CHARSET=latin1
+) /*!50100 TABLESPACE ts1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
 **** Third and last set of alters for test1  ****
 ALTER TABLE t1 CHANGE c1 c1 DOUBLE;
 ALTER TABLE t1 CHANGE c2 c2 DECIMAL(10,2);
@@ -136,7 +136,7 @@ t1	CREATE TABLE `t1` (
   `c5` double DEFAULT NULL,
   PRIMARY KEY (`c1`),
   KEY `t1_i` (`c2`)
-) ENGINE=ndbcluster DEFAULT CHARSET=latin1
+) /*!50100 TABLESPACE ts1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
 SELECT * FROM t1 ORDER BY c1 LIMIT 5;
 c1	c2	c3	c5
 1	2.00	b1b1b1b1b1b1b1b1b1b1	NULL
@@ -154,7 +154,7 @@ t1	CREATE TABLE `t1` (
   `c5` double DEFAULT NULL,
   PRIMARY KEY (`c1`),
   KEY `t1_i` (`c2`)
-) ENGINE=ndbcluster DEFAULT CHARSET=latin1
+) /*!50100 TABLESPACE ts1 STORAGE DISK */ ENGINE=ndbcluster DEFAULT CHARSET=latin1
 SELECT * FROM t1 where c1 = 1;
 c1	c2	c3	c5
 1	2.00	b1b1b1b1b1b1b1b1b1b1	NULL

mysql-test/t/ndb_dd_disk2memory.test

@@ -111,7 +111,7 @@ SHOW CREATE TABLE test.t1;
 ALTER TABLE test.t2 TABLESPACE table_space1 STORAGE DISK
 ENGINE=NDB;
 SHOW CREATE TABLE test.t2;
-ALTER TABLE test.t1 ENGINE=NDBCLUSTER;
+ALTER TABLE test.t1 STORAGE MEMORY ENGINE=NDBCLUSTER;
 SHOW CREATE TABLE test.t1;
 --echo
 ######################### End Test Section 2 #################

sql/ha_ndbcluster.cc

@@ -4807,7 +4807,7 @@ int ha_ndbcluster::create(const char *name,
     if ((my_errno= create_ndb_column(col, field, info)))
       DBUG_RETURN(my_errno);
  
-    if (info->store_on_disk || getenv("NDB_DEFAULT_DISK"))
+    if (info->storage_media == HA_SM_DISK || getenv("NDB_DEFAULT_DISK"))
       col.setStorageType(NdbDictionary::Column::StorageTypeDisk);
     else
       col.setStorageType(NdbDictionary::Column::StorageTypeMemory);
@@ -4827,7 +4827,7 @@ int ha_ndbcluster::create(const char *name,
                              NdbDictionary::Column::StorageTypeMemory);
   }
 
-  if (info->store_on_disk)
+  if (info->storage_media == HA_SM_DISK)
   { 
     if (info->tablespace)
       tab.setTablespace(info->tablespace);
@@ -4837,7 +4837,7 @@ int ha_ndbcluster::create(const char *name,
   else if (info->tablespace)
   {
     tab.setTablespace(info->tablespace);
-    info->store_on_disk = true;  //if use tablespace, that also means store on disk
+    info->storage_media = HA_SM_DISK;  //if use tablespace, that also means store on disk
   }
 
   // No primary key, create shadow key as 64 bit, auto increment  
@@ -9949,7 +9949,7 @@ int ha_ndbcluster::generate_scan_filter_from_key(NdbScanOperation *op,
 /*
   get table space info for SHOW CREATE TABLE
 */
-char* ha_ndbcluster::get_tablespace_name(THD *thd, char* name)
+char* ha_ndbcluster::get_tablespace_name(THD *thd, char* name, uint name_len)
 {
   Ndb *ndb= check_ndb_in_thd(thd);
   NDBDICT *ndbdict= ndb->getDictionary();
@@ -9969,7 +9969,7 @@ char* ha_ndbcluster::get_tablespace_name(THD *thd, char* name)
       goto err;
     if (name)
     {
-      strxnmov(name, FN_LEN, ts.getName(), NullS);
+      strxnmov(name, name_len, ts.getName(), NullS);
       return name;
     }
     else

sql/ha_ndbcluster.h

@@ -824,7 +824,7 @@ private:
   uint set_up_partition_info(partition_info *part_info,
                              TABLE *table,
                              void *tab);
-  char* get_tablespace_name(THD *thd, char *name);
+  char* get_tablespace_name(THD *thd, char *name, uint name_len);
   int set_range_data(void *tab, partition_info* part_info);
   int set_list_data(void *tab, partition_info* part_info);
   int complemented_read(const byte *old_data, byte *new_data,

sql/handler.h

@@ -764,7 +764,7 @@ typedef struct st_ha_create_information
   bool table_existed;			/* 1 in create if table existed */
   bool frm_only;                        /* 1 if no ha_create_table() */
   bool varchar;                         /* 1 if table has a VARCHAR */
-  bool store_on_disk;                   /* 1 if table stored on disk */
+  enum ha_storage_media storage_media;  /* DEFAULT, DISK or MEMORY */
 } HA_CREATE_INFO;
 
 
@@ -1410,7 +1410,7 @@ public:
   { return FALSE; }
   virtual char* get_foreign_key_create_info()
   { return(NULL);}  /* gets foreign key create string from InnoDB */
-  virtual char* get_tablespace_name(THD *thd, char *name)
+  virtual char* get_tablespace_name(THD *thd, char *name, uint name_len)
   { return(NULL);}  /* gets tablespace name from handler */
   /* used in ALTER TABLE; 1 if changing storage engine is allowed */
   virtual bool can_switch_engines() { return 1; }

sql/sql_show.cc

@@ -1267,7 +1267,7 @@ int store_create_info(THD *thd, TABLE_LIST *table_list, String *packet,
       to the CREATE TABLE statement
     */
 
-    if ((for_str= file->get_tablespace_name(thd,0)))
+    if ((for_str= file->get_tablespace_name(thd,0,0)))
     {
       packet->append(STRING_WITH_LEN(" /*!50100 TABLESPACE "));
       packet->append(for_str, strlen(for_str));
@@ -3974,7 +3974,7 @@ static void store_schema_partitions_record(THD *thd, TABLE *schema_table,
                               strlen(part_elem->tablespace_name), cs);
     else
     {
-      char *ts= showing_table->file->get_tablespace_name(thd,0);
+      char *ts= showing_table->file->get_tablespace_name(thd,0,0);
       if(ts)
       {
         table->field[24]->store(ts, strlen(ts), cs);

sql/sql_table.cc

@@ -5630,14 +5630,14 @@ view_err:
   if (!(used_fields & HA_CREATE_USED_KEY_BLOCK_SIZE))
     create_info->key_block_size= table->s->key_block_size;
 
-  if (!create_info->tablespace)
+  if (!create_info->tablespace && create_info->storage_media != HA_SM_MEMORY)
   {
     /* 
-       Regular alter table of disk stored table (no tablespace change)
+       Regular alter table of disk stored table (no tablespace/storage change)
        Copy tablespace name
     */
-    if (table->file->get_tablespace_name(thd, (char *) &tablespace))
-      create_info->tablespace= (char *) &tablespace;
+    if ((table->file->get_tablespace_name(thd, tablespace, FN_LEN)))
+      create_info->tablespace= tablespace;
   }
   restore_record(table, s->default_values);     // Empty record for DEFAULT
   List_iterator<Alter_drop> drop_it(alter_info->drop_list);

sql/sql_yacc.yy

@@ -3947,8 +3947,8 @@ create_table_option:
 	| DATA_SYM DIRECTORY_SYM opt_equal TEXT_STRING_sys { Lex->create_info.data_file_name= $4.str; Lex->create_info.used_fields|= HA_CREATE_USED_DATADIR; }
 	| INDEX_SYM DIRECTORY_SYM opt_equal TEXT_STRING_sys { Lex->create_info.index_file_name= $4.str;  Lex->create_info.used_fields|= HA_CREATE_USED_INDEXDIR; }
         | TABLESPACE ident {Lex->create_info.tablespace= $2.str;}
-        | STORAGE_SYM DISK_SYM {Lex->create_info.store_on_disk= TRUE;}
-        | STORAGE_SYM MEMORY_SYM {Lex->create_info.store_on_disk= FALSE;}
+        | STORAGE_SYM DISK_SYM {Lex->create_info.storage_media= HA_SM_DISK;}
+        | STORAGE_SYM MEMORY_SYM {Lex->create_info.storage_media= HA_SM_MEMORY;}
 	| CONNECTION_SYM opt_equal TEXT_STRING_sys { Lex->create_info.connect_string.str= $3.str; Lex->create_info.connect_string.length= $3.length;  Lex->create_info.used_fields|= HA_CREATE_USED_CONNECTION; }
 	| KEY_BLOCK_SIZE opt_equal ulong_num
 	  {
@@ -4690,6 +4690,7 @@ alter:
 	  lex->alter_info.reset();
 	  lex->alter_info.flags= 0;
           lex->no_write_to_binlog= 0;
+          lex->create_info.storage_media= HA_SM_DEFAULT;	
 	}
 	alter_commands
 	{}
@@ -8342,6 +8343,7 @@ show_param:
 	    if (!lex->select_lex.add_table_to_list(YYTHD, $3, NULL,0))
 	      YYABORT;
             lex->only_view= 0;
+	    lex->create_info.storage_media= HA_SM_DEFAULT;
 	  }
         | CREATE VIEW_SYM table_ident
           {