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Backport of revno: 2617.69.40

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A pre-requisite patch for Bug#30977 "Concurrent statement using 
stored function and DROP FUNCTION breaks SBR".

This patch changes the MDL API by introducing a namespace for
lock keys: MDL_TABLE for tables and views and MDL_PROCEDURE
for stored procedures and functions. The latter is needed for
the fix for Bug#30977.
This commit is contained in:
Jon Olav Hauglid
2009-12-09 09:51:20 +01:00
parent 4235167fcf
commit 546e16ebd8
13 changed files with 62 additions and 57 deletions
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2
sql/sql_parse.cc
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@@ -6024,7 +6024,7 @@ TABLE_LIST *st_select_lex::add_table_to_list(THD *thd,
ptr->next_name_resolution_table= NULL;
/* Link table in global list (all used tables) */
lex->add_to_query_tables(ptr);
ptr->mdl_request.init(0, ptr->db, ptr->table_name, MDL_SHARED);
ptr->mdl_request.init(MDL_TABLE, ptr->db, ptr->table_name, MDL_SHARED);
DBUG_RETURN(ptr);
}