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bug #1172 - crash on force index() and SEL_ARG::MAYBE_KEY

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This commit is contained in:
serg@serg.mylan
2003-09-03 22:27:04 +02:00
parent 867b4cc18f
commit be96cc0984
3 changed files with 26 additions and 2 deletions
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4
sql/opt_range.cc
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@ -692,7 +692,7 @@ int SQL_SELECT::test_quick_select(key_map keys_to_use, table_map prev_tables,
uint keynr= param.real_keynr[idx];
if ((*key)->type == SEL_ARG::MAYBE_KEY ||
(*key)->maybe_flag)
needed_reg|= (key_map) 1 << keynr;
needed_reg|= (key_map) 1 << keynr;
found_records=check_quick_select(&param, idx, *key);
if (found_records != HA_POS_ERROR && found_records > 2 &&
@ -716,7 +716,7 @@ int SQL_SELECT::test_quick_select(key_map keys_to_use, table_map prev_tables,
param.range_count,
found_records)+
(double) found_records / TIME_FOR_COMPARE);
if (read_time > found_read_time)
if (read_time > found_read_time && found_records != HA_POS_ERROR)
{
read_time=found_read_time;
records=found_records;