diff options
Diffstat (limited to 'sql/sql_show.cc')
| -rw-r--r-- | sql/sql_show.cc | 92 |
1 files changed, 61 insertions, 31 deletions
diff --git a/sql/sql_show.cc b/sql/sql_show.cc index 3a42715b721..7ddc7f8ab24 100644 --- a/sql/sql_show.cc +++ b/sql/sql_show.cc @@ -5154,6 +5154,7 @@ public: int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond) { + DBUG_ENTER("get_all_tables"); LEX *lex= thd->lex; TABLE *table= tables->table; TABLE_LIST table_acl_check; @@ -5171,7 +5172,29 @@ int get_all_tables(THD *thd, TABLE_LIST *tables, COND *cond) uint table_open_method= tables->table_open_method; bool can_deadlock; MEM_ROOT tmp_mem_root; - DBUG_ENTER("get_all_tables"); + /* + We're going to open FRM files for tables. + In case of VIEWs that contain stored function calls, + these stored functions will be parsed and put to the SP cache. + + Suppose we have a view containing a stored function call: + CREATE VIEW v1 AS SELECT f1() AS c1; + and now we're running: + SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME=f1(); + If a parallel thread invalidates the cache, + e.g. by creating or dropping some stored routine, + the SELECT query will re-parse f1() when processing "v1" + and replace the outdated cached version of f1() to a new one. + But the old version of f1() is referenced from the m_sp member + of the Item_func_sp instances used in the WHERE condition. + We cannot destroy it. To avoid such clashes, let's remember + all old routines into a temporary SP cache collection + and process tables with a new empty temporary SP cache collection. + Then restore to the old SP cache collection at the end. + */ + Sp_caches old_sp_caches; + + old_sp_caches.sp_caches_swap(*thd); bzero(&tmp_mem_root, sizeof(tmp_mem_root)); @@ -5347,6 +5370,13 @@ err: thd->restore_backup_open_tables_state(&open_tables_state_backup); free_root(&tmp_mem_root, 0); + /* + Now restore to the saved SP cache collection + and clear the temporary SP cache collection. + */ + old_sp_caches.sp_caches_swap(*thd); + old_sp_caches.sp_caches_clear(); + DBUG_RETURN(error); } @@ -9054,7 +9084,7 @@ ST_FIELD_INFO columns_fields_info[]= Column("ORDINAL_POSITION", ULonglong(), NOT_NULL, OPEN_FRM_ONLY), Column("COLUMN_DEFAULT", Longtext(MAX_FIELD_VARCHARLENGTH), NULLABLE, "Default",OPEN_FRM_ONLY), - Column("IS_NULLABLE", Yesno(), NOT_NULL, "Null", OPEN_FRM_ONLY), + Column("IS_NULLABLE", Yes_or_empty(), NOT_NULL, "Null", OPEN_FRM_ONLY), Column("DATA_TYPE", Name(), NOT_NULL, OPEN_FRM_ONLY), Column("CHARACTER_MAXIMUM_LENGTH",ULonglong(), NULLABLE, OPEN_FRM_ONLY), Column("CHARACTER_OCTET_LENGTH", ULonglong(), NULLABLE, OPEN_FRM_ONLY), @@ -9091,8 +9121,8 @@ ST_FIELD_INFO collation_fields_info[]= Column("COLLATION_NAME", CSName(), NOT_NULL, "Collation"), Column("CHARACTER_SET_NAME", CSName(), NOT_NULL, "Charset"), Column("ID", SLonglong(MY_INT32_NUM_DECIMAL_DIGITS), NOT_NULL, "Id"), - Column("IS_DEFAULT", Yesno(), NOT_NULL, "Default"), - Column("IS_COMPILED", Yesno(), NOT_NULL, "Compiled"), + Column("IS_DEFAULT", Yes_or_empty(), NOT_NULL, "Default"), + Column("IS_COMPILED", Yes_or_empty(), NOT_NULL, "Compiled"), Column("SORTLEN", SLonglong(3), NOT_NULL, "Sortlen"), CEnd() }; @@ -9100,10 +9130,10 @@ ST_FIELD_INFO collation_fields_info[]= ST_FIELD_INFO applicable_roles_fields_info[]= { - Column("GRANTEE", Userhost(), NOT_NULL), + Column("GRANTEE", Userhost(), NOT_NULL), Column("ROLE_NAME", Varchar(USERNAME_CHAR_LENGTH), NOT_NULL), - Column("IS_GRANTABLE", Yesno(), NOT_NULL), - Column("IS_DEFAULT", Yesno(), NULLABLE), + Column("IS_GRANTABLE", Yes_or_empty(), NOT_NULL), + Column("IS_DEFAULT", Yes_or_empty(), NULLABLE), CEnd() }; @@ -9247,7 +9277,7 @@ ST_FIELD_INFO view_fields_info[]= Column("TABLE_NAME", Name(), NOT_NULL, OPEN_FRM_ONLY), Column("VIEW_DEFINITION", Longtext(65535), NOT_NULL, OPEN_FRM_ONLY), Column("CHECK_OPTION", Varchar(8), NOT_NULL, OPEN_FRM_ONLY), - Column("IS_UPDATABLE", Yesno(), NOT_NULL, OPEN_FULL_TABLE), + Column("IS_UPDATABLE", Yes_or_empty(), NOT_NULL, OPEN_FULL_TABLE), Column("DEFINER", Definer(), NOT_NULL, OPEN_FRM_ONLY), Column("SECURITY_TYPE", Varchar(7), NOT_NULL, OPEN_FRM_ONLY), Column("CHARACTER_SET_CLIENT", CSName(), NOT_NULL, OPEN_FRM_ONLY), @@ -9259,46 +9289,46 @@ ST_FIELD_INFO view_fields_info[]= ST_FIELD_INFO user_privileges_fields_info[]= { - Column("GRANTEE", Userhost(), NOT_NULL), - Column("TABLE_CATALOG", Catalog(), NOT_NULL), - Column("PRIVILEGE_TYPE", Name(), NOT_NULL), - Column("IS_GRANTABLE", Yesno(), NOT_NULL), + Column("GRANTEE", Userhost(), NOT_NULL), + Column("TABLE_CATALOG", Catalog(), NOT_NULL), + Column("PRIVILEGE_TYPE", Name(), NOT_NULL), + Column("IS_GRANTABLE", Yes_or_empty(), NOT_NULL), CEnd() }; ST_FIELD_INFO schema_privileges_fields_info[]= { - Column("GRANTEE", Userhost(), NOT_NULL), - Column("TABLE_CATALOG", Catalog(), NOT_NULL), - Column("TABLE_SCHEMA", Name(), NOT_NULL), - Column("PRIVILEGE_TYPE", Name(), NOT_NULL), - Column("IS_GRANTABLE", Yesno(), NOT_NULL), + Column("GRANTEE", Userhost(), NOT_NULL), + Column("TABLE_CATALOG", Catalog(), NOT_NULL), + Column("TABLE_SCHEMA", Name(), NOT_NULL), + Column("PRIVILEGE_TYPE", Name(), NOT_NULL), + Column("IS_GRANTABLE", Yes_or_empty(), NOT_NULL), CEnd() }; ST_FIELD_INFO table_privileges_fields_info[]= { - Column("GRANTEE", Userhost(), NOT_NULL), - Column("TABLE_CATALOG", Catalog(), NOT_NULL), - Column("TABLE_SCHEMA", Name(), NOT_NULL), - Column("TABLE_NAME", Name(), NOT_NULL), - Column("PRIVILEGE_TYPE", Name(), NOT_NULL), - Column("IS_GRANTABLE", Yesno(), NOT_NULL), + Column("GRANTEE", Userhost(), NOT_NULL), + Column("TABLE_CATALOG", Catalog(), NOT_NULL), + Column("TABLE_SCHEMA", Name(), NOT_NULL), + Column("TABLE_NAME", Name(), NOT_NULL), + Column("PRIVILEGE_TYPE", Name(), NOT_NULL), + Column("IS_GRANTABLE", Yes_or_empty(), NOT_NULL), CEnd() }; ST_FIELD_INFO column_privileges_fields_info[]= { - Column("GRANTEE", Userhost(), NOT_NULL), - Column("TABLE_CATALOG", Catalog(), NOT_NULL), - Column("TABLE_SCHEMA", Name(), NOT_NULL), - Column("TABLE_NAME", Name(), NOT_NULL), - Column("COLUMN_NAME", Name(), NOT_NULL), - Column("PRIVILEGE_TYPE", Name(), NOT_NULL), - Column("IS_GRANTABLE", Yesno(), NOT_NULL), + Column("GRANTEE", Userhost(), NOT_NULL), + Column("TABLE_CATALOG", Catalog(), NOT_NULL), + Column("TABLE_SCHEMA", Name(), NOT_NULL), + Column("TABLE_NAME", Name(), NOT_NULL), + Column("COLUMN_NAME", Name(), NOT_NULL), + Column("PRIVILEGE_TYPE", Name(), NOT_NULL), + Column("IS_GRANTABLE", Yes_or_empty(), NOT_NULL), CEnd() }; @@ -9439,7 +9469,7 @@ ST_FIELD_INFO sysvars_fields_info[]= Column("NUMERIC_MAX_VALUE", Varchar(MY_INT64_NUM_DECIMAL_DIGITS), NULLABLE), Column("NUMERIC_BLOCK_SIZE", Varchar(MY_INT64_NUM_DECIMAL_DIGITS), NULLABLE), Column("ENUM_VALUE_LIST", Longtext(65535), NULLABLE), - Column("READ_ONLY", Yesno(), NOT_NULL), + Column("READ_ONLY", Yes_or_empty(), NOT_NULL), Column("COMMAND_LINE_ARGUMENT",Name(), NULLABLE), Column("GLOBAL_VALUE_PATH", Varchar(2048), NULLABLE), CEnd() |