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MDEV-19445 heap-use-after-free related to innodb_ft_aux_table

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Try to fix the race conditions between
SET GLOBAL innodb_ft_aux_table = ...;
and access to the INFORMATION_SCHEMA tables that depend on
this variable.

innodb_ft_aux_table: Replaces
fts_internal_tbl_name,fts_internal_tbl_name2. Just store the
user-specified parameter as is.

innodb_ft_aux_table_id: The table_id corresponding to
SET GLOBAL innodb_ft_aux_table, or 0 if the table does not exist
or does not contain FULLTEXT INDEX. If the table is renamed later,
the INFORMATION_SCHEMA tables will continue to refer to the table.
If the table is dropped or rebuilt, the INFORMATION_SCHEMA tables
will not find the table.
This commit is contained in:
Marko Mäkelä
2019-05-13 17:16:42 +03:00
parent 1c97e07f8f
commit 2647fd101d
14 changed files with 339 additions and 316 deletions
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6
mysql-test/suite/innodb_fts/t/innodb_ft_aux_table.opt Normal file
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--innodb_ft_default_stopword
--innodb_ft_deleted
--innodb_ft_being_deleted
--innodb_ft_index_cache
--innodb_ft_index_table
--innodb_ft_config