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fixed ALL/ANY optimisation with union (BUG#1668)

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code cleanup
This commit is contained in:
bell@sanja.is.com.ua
2003-10-27 01:01:27 +02:00
parent b9156c1871
commit 2efab5b67d
5 changed files with 56 additions and 10 deletions
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7
sql/sql_union.cc
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@@ -119,13 +119,18 @@ int st_select_lex_unit::prepare(THD *thd, select_result *sel_result,
SELECT_LEX *select_cursor,*sl;
DBUG_ENTER("st_select_lex_unit::prepare");
/*
result object should be reassigned even if preparing already done for
max/min subquery (ALL/ANY optimization)
*/
result= sel_result;
if (prepared)
DBUG_RETURN(0);
prepared= 1;
res= 0;
found_rows_for_union= first_select_in_union()->options & OPTION_FOUND_ROWS;
TMP_TABLE_PARAM tmp_table_param;
result= sel_result;
t_and_f= tables_and_fields_initied;
bzero((char *)&tmp_table_param,sizeof(TMP_TABLE_PARAM));