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MDEV-19112 WITH clause does not work with information_schema as default database

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With INFORMATION_SCHEMA set as the default database the check that a table
referred in the processed query is defined in INORMATION_SCHEMA must
be postponed until all CTE names can be identified.
This commit is contained in:
Igor Babaev
2019-04-03 22:52:29 -07:00
parent b30fb701cc
commit b4a7bde76c
5 changed files with 52 additions and 14 deletions
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15
sql/sql_parse.cc
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@ -8222,7 +8222,6 @@ TABLE_LIST *st_select_lex::add_table_to_list(THD *thd,
ptr->derived= table->sel;
if (!ptr->derived && is_infoschema_db(ptr->db, ptr->db_length))
{
ST_SCHEMA_TABLE *schema_table;
if (ptr->updating &&
/* Special cases which are processed by commands itself */
lex->sql_command != SQLCOM_CHECK &&
@ -8234,20 +8233,8 @@ TABLE_LIST *st_select_lex::add_table_to_list(THD *thd,
INFORMATION_SCHEMA_NAME.str);
DBUG_RETURN(0);
}
ST_SCHEMA_TABLE *schema_table;
schema_table= find_schema_table(thd, ptr->table_name);
if (!schema_table ||
(schema_table->hidden &&
((sql_command_flags[lex->sql_command] & CF_STATUS_COMMAND) == 0 ||
/*
this check is used for show columns|keys from I_S hidden table
*/
lex->sql_command == SQLCOM_SHOW_FIELDS ||
lex->sql_command == SQLCOM_SHOW_KEYS)))
{
my_error(ER_UNKNOWN_TABLE, MYF(0),
ptr->table_name, INFORMATION_SCHEMA_NAME.str);
DBUG_RETURN(0);
}
ptr->schema_table_name= ptr->table_name;
ptr->schema_table= schema_table;
}