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Merge remote-tracking branch 'origin/5.5' into 10.0

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Vicențiu Ciorbaru
2017-05-17 15:42:36 +03:00
parent b87873b221 934b831281
commit 339a290d22
19 changed files with 452 additions and 19 deletions
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18
sql/sql_select.cc
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@ -9487,12 +9487,20 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
/*
Step #2: Extract WHERE/ON parts
*/
uint i;
for (i= join->top_join_tab_count - 1; i >= join->const_tables; i--)
{
if (!join->join_tab[i].bush_children)
break;
}
uint last_top_base_tab_idx= i;
table_map save_used_tables= 0;
used_tables=((select->const_tables=join->const_table_map) |
OUTER_REF_TABLE_BIT | RAND_TABLE_BIT);
JOIN_TAB *tab;
table_map current_map;
uint i= join->const_tables;
i= join->const_tables;
for (tab= first_depth_first_tab(join); tab;
tab= next_depth_first_tab(join, tab), i++)
{
@ -9530,7 +9538,7 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
Following force including random expression in last table condition.
It solve problem with select like SELECT * FROM t1 WHERE rand() > 0.5
*/
if (tab == join->join_tab + join->top_join_tab_count - 1)
if (tab == join->join_tab + last_top_base_tab_idx)
current_map|= RAND_TABLE_BIT;
used_tables|=current_map;
@ -9569,10 +9577,10 @@ make_join_select(JOIN *join,SQL_SELECT *select,COND *cond)
save_used_tables= 0;
}
else
{
tmp= make_cond_for_table(thd, cond, used_tables, current_map, i,
{
tmp= make_cond_for_table(thd, cond, used_tables, current_map, i,
FALSE, FALSE);
}
}
/* Add conditions added by add_not_null_conds(). */
if (tab->select_cond)
add_cond_and_fix(thd, &tmp, tab->select_cond);