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MDEV-26831 fallout: fix problems of name resolution cache

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- Avoid passing real field cache as a parameter when we check for duplicates.

- Correct cache cleanup (cached field number also have to be reset).

- Name resolution cache simple test added.
This commit is contained in:
Oleksandr Byelkin
2022-11-25 12:54:24 +01:00
parent 7bdd878ae4
commit a6a906d766
3 changed files with 87 additions and 4 deletions
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36
mysql-test/main/name_resolution_cache_debug.test Normal file
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source include/have_debug_sync.inc;
connect con1,localhost,root;
create table t1 (a int, b int);
create table t2 (c int, d int);
create view v1 as select c+1 as e, d+1 as f from t2;
SET DEBUG_SYNC= 'table_field_cached SIGNAL in_sync WAIT_FOR go';
prepare stmt1 from "select a from t1";
--send execute stmt1
connection default;
SET DEBUG_SYNC= 'now WAIT_FOR in_sync';
SET DEBUG_SYNC= 'now SIGNAL go';
connection con1;
--reap
SET DEBUG_SYNC= 'table_field_cached SIGNAL in_sync WAIT_FOR go';
prepare stmt1 from "select e from v1";
--send execute stmt1
connection default;
SET DEBUG_SYNC= 'now WAIT_FOR in_sync';
SET DEBUG_SYNC= 'now SIGNAL go';
connection con1;
--reap
connection default;
disconnect con1;
SET DEBUG_SYNC = 'RESET';
drop view v1;
drop table t1,t2;