Merge baker@bk-internal.mysql.com:/home/bk/mysql-5.1-new

into  zim.(none):/home/brian/mysql/cluster-5.1

libmysqld/Makefile.am

@@ -64,6 +64,7 @@ sqlsources = derror.cc field.cc field_conv.cc strfunc.cc filesort.cc \
 	spatial.cc gstream.cc sql_help.cc tztime.cc sql_cursor.cc \
 	sp_head.cc sp_pcontext.cc sp.cc sp_cache.cc sp_rcontext.cc \
 	parse_file.cc sql_view.cc sql_trigger.cc my_decimal.cc \
+	item_xmlfunc.cc \
         rpl_filter.cc sql_partition.cc handlerton.cc sql_plugin.cc
 
 libmysqld_int_a_SOURCES= $(libmysqld_sources) $(libmysqlsources) $(sqlsources)

mysql-test/r/information_schema.result

@@ -41,6 +41,7 @@ COLLATIONS
 COLLATION_CHARACTER_SET_APPLICABILITY
 COLUMNS
 COLUMN_PRIVILEGES
+ENGINES
 KEY_COLUMN_USAGE
 PLUGINS
 ROUTINES
@@ -1058,3 +1059,6 @@ where table_name="v1";
 table_type
 VIEW
 drop view v1;
+select * from information_schema.engines WHERE ENGINE="MyISAM";
+ENGINE	SUPPORT	COMMENT	TRANSACTIONS	XA	SAVEPOINTS
+MyISAM	ENABLED	Default engine as of MySQL 3.23 with great performance	NO	NO	NO

mysql-test/r/information_schema_db.result

@@ -6,6 +6,7 @@ COLLATIONS
 COLLATION_CHARACTER_SET_APPLICABILITY
 COLUMNS
 COLUMN_PRIVILEGES
+ENGINES
 KEY_COLUMN_USAGE
 PLUGINS
 ROUTINES

mysql-test/t/information_schema.test

@@ -748,3 +748,9 @@ drop table t1;
 select table_type from information_schema.tables
 where table_name="v1";
 drop view v1;
+
+#
+# Show engines
+#
+
+select * from information_schema.engines WHERE ENGINE="MyISAM";

sql/ha_partition.cc

@@ -96,7 +96,7 @@ handlerton partition_hton = {
   NULL, /* Start Consistent Snapshot */
   NULL, /* Flush logs */
   NULL, /* Show status */
-  HTON_NOT_USER_SELECTABLE
+  HTON_NOT_USER_SELECTABLE | HTON_HIDDEN
 };
 
 static handler *partition_create_handler(TABLE_SHARE *share)

sql/sql_parse.cc

@@ -2229,6 +2229,7 @@ int prepare_schema_table(THD *thd, LEX *lex, Table_ident *table_ident,
   case SCH_STATUS:
   case SCH_PROCEDURES:
   case SCH_CHARSETS:
+  case SCH_ENGINES:
   case SCH_COLLATIONS:
   case SCH_COLLATION_CHARACTER_SET_APPLICABILITY:
   case SCH_USER_PRIVILEGES:

sql/sql_show.cc

@@ -2917,6 +2917,46 @@ int fill_schema_charsets(THD *thd, TABLE_LIST *tables, COND *cond)
 }
 
 
+int fill_schema_engines(THD *thd, TABLE_LIST *tables, COND *cond)
+{
+  const char *wild= thd->lex->wild ? thd->lex->wild->ptr() : NullS;
+  TABLE *table= tables->table;
+  CHARSET_INFO *scs= system_charset_info;
+  handlerton **types;
+
+  DBUG_ENTER("fill_schema_engines");
+
+  for (types= sys_table_types; *types; types++)
+  {
+    if ((*types)->flags & HTON_HIDDEN)
+      continue;
+
+    if (!(wild && wild[0] &&
+          wild_case_compare(scs, (*types)->name,wild)))
+    {
+      const char *tmp;
+      restore_record(table, s->default_values);
+
+      table->field[0]->store((*types)->name, strlen((*types)->name), scs);
+      tmp= (*types)->state ? "DISABLED" : "ENABLED";
+      table->field[1]->store( tmp, strlen(tmp), scs);
+      table->field[2]->store((*types)->comment, strlen((*types)->comment), scs);
+      tmp= (*types)->commit ? "YES" : "NO";
+      table->field[3]->store( tmp, strlen(tmp), scs);
+      tmp= (*types)->prepare ? "YES" : "NO";
+      table->field[4]->store( tmp, strlen(tmp), scs);
+      tmp= (*types)->savepoint_set ? "YES" : "NO";
+      table->field[5]->store( tmp, strlen(tmp), scs);
+
+      if (schema_table_store_record(thd, table))
+        DBUG_RETURN(1);
+    }
+  }
+
+  DBUG_RETURN(0);
+}
+
+
 int fill_schema_collation(THD *thd, TABLE_LIST *tables, COND *cond)
 {
   CHARSET_INFO **cs;
@@ -3971,6 +4011,7 @@ int make_schema_select(THD *thd, SELECT_LEX *sel,
   ST_SCHEMA_TABLE *schema_table= get_schema_table(schema_table_idx);
   LEX_STRING db, table;
   DBUG_ENTER("mysql_schema_select");
+  DBUG_PRINT("enter", ("mysql_schema_select: %s", schema_table->table_name));
   /*
      We have to make non const db_name & table_name
      because of lower_case_table_names
@@ -4124,6 +4165,18 @@ ST_FIELD_INFO collation_fields_info[]=
 };
 
 
+ST_FIELD_INFO engines_fields_info[]=
+{
+  {"ENGINE", 64, MYSQL_TYPE_STRING, 0, 0, "Engine"},
+  {"SUPPORT", 8, MYSQL_TYPE_STRING, 0, 0, "Support"},
+  {"COMMENT", 80, MYSQL_TYPE_STRING, 0, 0, "Comment"},
+  {"TRANSACTIONS", 3, MYSQL_TYPE_STRING, 0, 0, "Transactions"},
+  {"XA", 3, MYSQL_TYPE_STRING, 0, 0, "XA"},
+  {"SAVEPOINTS", 3 ,MYSQL_TYPE_STRING, 0, 0, "Savepoints"},
+  {0, 0, MYSQL_TYPE_STRING, 0, 0, 0}
+};
+
+
 ST_FIELD_INFO coll_charset_app_fields_info[]=
 {
   {"COLLATION_NAME", 64, MYSQL_TYPE_STRING, 0, 0, 0},
@@ -4339,6 +4392,9 @@ ST_FIELD_INFO plugin_fields_info[]=
 
 /*
   Description of ST_FIELD_INFO in table.h
+
+  Make sure that the order of schema_tables and enum_schema_tables are the same.
+
 */
 
 ST_SCHEMA_TABLE schema_tables[]=
@@ -4353,6 +4409,8 @@ ST_SCHEMA_TABLE schema_tables[]=
    get_all_tables, make_columns_old_format, get_schema_column_record, 1, 2, 0},
   {"COLUMN_PRIVILEGES", column_privileges_fields_info, create_schema_table,
     fill_schema_column_privileges, 0, 0, -1, -1, 0},
+  {"ENGINES", engines_fields_info, create_schema_table,
+        fill_schema_engines, make_old_format, 0, -1, -1, 0},
   {"KEY_COLUMN_USAGE", key_column_usage_fields_info, create_schema_table,
     get_all_tables, 0, get_schema_key_column_usage_record, 4, 5, 0},
   {"OPEN_TABLES", open_tables_fields_info, create_schema_table,

sql/sql_yacc.yy

@@ -7114,6 +7114,9 @@ show_param:
 	  {
 	    LEX *lex=Lex;
 	    lex->sql_command= SQLCOM_SHOW_STORAGE_ENGINES;
+            lex->orig_sql_command= SQLCOM_SHOW_AUTHORS;
+            if (prepare_schema_table(YYTHD, lex, 0, SCH_ENGINES))
+              YYABORT;
 	  }
 	| AUTHORS_SYM
 	  {

sql/table.h

@@ -317,6 +317,9 @@ typedef struct st_foreign_key_info
   List<LEX_STRING> referenced_fields;
 } FOREIGN_KEY_INFO;
 
+/*
+  Make sure that the order of schema_tables and enum_schema_tables are the same.
+*/
 
 enum enum_schema_tables
 {
@@ -325,6 +328,7 @@ enum enum_schema_tables
   SCH_COLLATION_CHARACTER_SET_APPLICABILITY,
   SCH_COLUMNS,
   SCH_COLUMN_PRIVILEGES,
+  SCH_ENGINES,
   SCH_KEY_COLUMN_USAGE,
   SCH_OPEN_TABLES,
   SCH_PLUGINS,