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MDEV-24739: Assertion `root->weight >= ...' failed in SEL_ARG::tree_delete

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Also update the SEL_ARG graph weight in:
- sel_add()
- SEL_ARG::clone()

Make key_{and,or}_with_limit() to also verify weight for the arguments
(There is no single point to verify SEL_ARG graphs constructed from
conditions that are not AND-OR formulas, so we hope that those are
connected with AND/OR and do it here).
This commit is contained in:
Sergei Petrunia
2021-01-30 00:54:21 +03:00
parent a70a47f2f3
commit 73c43ee9ed
3 changed files with 53 additions and 0 deletions
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13
mysql-test/main/range_notembedded.test
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@ -96,4 +96,17 @@ select left(@json, 1500);
set optimizer_max_sel_arg_weight= @tmp9750_weight;
set optimizer_trace=@tmp_9750;
drop table t1;
--echo #
--echo # MDEV-24739: Assertion `root->weight >= ...' failed in SEL_ARG::tree_delete
--echo #
SELECT *
FROM mysql.help_relation
WHERE NOT (help_topic_id != 8 AND help_keyword_id != 0 OR help_keyword_id = 2 OR help_topic_id < 1900);
SELECT *
FROM mysql.help_relation ignore index (help_topic_id)
WHERE (help_topic_id = 8 OR help_keyword_id = 0) AND help_keyword_id != 2 AND help_topic_id >= 1900;