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Fix valgrind failure: don't look at join->join_tab[-1]

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This commit is contained in:
Sergey Petrunya 2011-02-17 15:37:38 +03:00
parent b6fd7acb84
commit 9482a2cf09
1 changed files with 2 additions and 1 deletions
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3
sql/sql_select.cc
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@ -8531,7 +8531,8 @@ make_join_readinfo(JOIN *join, ulonglong options, uint no_jbuf_after)
Later it should be improved.
*/
JOIN_TAB *prev_tab= tab - 1;
if ((tab->bush_root_tab && tab->bush_root_tab->bush_children->start == tab))
if ((tab->bush_root_tab && tab->bush_root_tab->bush_children->start == tab) ||
(tab == join->join_tab + join->const_tables))
prev_tab= NULL;
tab->partial_join_cardinality= join->best_positions[i].records_read *
(prev_tab? prev_tab->partial_join_cardinality : 1);