database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-30 16:24:05 +03:00
Code Activity

Fix for bug #4508 "CONVERT_TZ() function with new time zone as param crashes server".

Browse Source 
Instead of trying to open time zone tables during calculation of CONVERT_TZ() function
or setting of @@time_zone variable we should open and lock them with the rest of 
statement's table (so we should add them to global table list) and after that use such 
pre-opened tables for loading info about time zones.
This commit is contained in:
dlenev@brandersnatch.localdomain
2004-08-10 12:42:31 +04:00
parent bcbbfc3bb8
commit f49d4f5350
20 changed files with 314 additions and 198 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
sql/sql_select.cc
View File

@ -213,39 +213,6 @@ int handle_select(THD *thd, LEX *lex, select_result *result)
}
void relink_tables(SELECT_LEX *select_lex)
{
for (TABLE_LIST *cursor= (TABLE_LIST *) select_lex->table_list.first;
cursor;
cursor=cursor->next)
if (cursor->table_list)
cursor->table= cursor->table_list->table;
}
void fix_tables_pointers(SELECT_LEX *select_lex)
{
if (select_lex->next_select_in_list())
{
/* Fix tables 'to-be-unioned-from' list to point at opened tables */
for (SELECT_LEX *sl= select_lex;
sl;
sl= sl->next_select_in_list())
relink_tables(sl);
}
}
void fix_tables_pointers(SELECT_LEX_UNIT *unit)
{
for (SELECT_LEX *sl= unit->first_select(); sl; sl= sl->next_select())
{
relink_tables(sl);
for (SELECT_LEX_UNIT *un= sl->first_inner_unit(); un; un= un->next_unit())
fix_tables_pointers(un);
}
}
/*
Function to setup clauses without sum functions
*/