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MDEV-25069: Assertion `root->weight >= ...' failed in SEL_ARG::tree_delete #2

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Note they key_or() may call tree_delete(), which will cause the weight
asserts to be checked. In order to avoid them from firing, update key1
tree's weight after we've changed key1->some_local_child->next_key_part.

Having done that, do we still need this at the function end:

  /* Re-compute the result tree's weight. */
  key1->update_weight_locally();
?
This commit is contained in:
Sergei Petrunia
2021-03-17 16:51:56 +03:00
parent 7e3806ce24
commit 9c7bd4f283
3 changed files with 25 additions and 0 deletions
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10
mysql-test/main/range_notembedded.test
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@ -140,3 +140,13 @@ WHERE
--enable_query_log
drop table t1;
--echo #
--echo # MDEV-25069: Assertion `root->weight >= ...' failed in SEL_ARG::tree_delete #2
--echo #
SELECT *
FROM mysql.help_relation
WHERE
(help_topic_id < '2' OR help_topic_id != 8 OR help_topic_id < 1) AND
help_keyword_id = help_topic_id;