diff options
| author | unknown <sergefp@mysql.com> | 2006-04-13 16:05:32 +0400 |
|---|---|---|
| committer | unknown <sergefp@mysql.com> | 2006-04-13 16:05:32 +0400 |
| commit | c89555edcc64a151a3eb59bd470ce3961d73415a (patch) | |
| tree | f0115920deee6e75b83871b9627dd4a138bd270a /sql/opt_range.cc | |
| parent | 10633fd8397f8450b5076bb98f336f6d20967b5d (diff) | |
| download | mariadb-git-c89555edcc64a151a3eb59bd470ce3961d73415a.tar.gz | |
BUG#19021, Crash in ROR-index_merge optimizer:
get_best_covering_ror_intersect() was copying ror_scans starting from the
end of the array and not from its beginning.
mysql-test/r/index_merge_innodb.result:
Testcase for BUG#19021
mysql-test/t/index_merge_innodb.test:
Testcase for BUG#19021
sql/opt_range.cc:
BUG#19021: In get_best_covering_ror_intersect(), the array of pointers to
scans to be used is [tree->ror_scans, ror_scan_mark), and not
[ror_scan_mark, ...)
Diffstat (limited to 'sql/opt_range.cc')
| -rw-r--r-- | sql/opt_range.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/opt_range.cc b/sql/opt_range.cc index d76495a0678..ae02bb8934c 100644 --- a/sql/opt_range.cc +++ b/sql/opt_range.cc @@ -3176,7 +3176,7 @@ TRP_ROR_INTERSECT *get_best_covering_ror_intersect(PARAM *param, sizeof(ROR_SCAN_INFO*)* best_num))) DBUG_RETURN(NULL); - memcpy(trp->first_scan, ror_scan_mark, best_num*sizeof(ROR_SCAN_INFO*)); + memcpy(trp->first_scan, tree->ror_scans, best_num*sizeof(ROR_SCAN_INFO*)); trp->last_scan= trp->first_scan + best_num; trp->is_covering= TRUE; trp->read_cost= total_cost; |