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MDEV-23779 Error upon querying the view, that selecting from versioned table with partitions

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PARTITION clause in SELECT means query is non-versioned (see
WITH_PARTITION_STORAGE_ENGINE in vers_setup_conds()).

vers_setup_conds() expands such query to SYSTEM_TIME_ALL which is then
added to VIEW specification. When VIEW is queried both clauses
PARTITION and FOR SYSTEM_TIME ALL lead to ER_VERS_QUERY_IN_PARTITION
(same place WITH_PARTITION_STORAGE_ENGINE).

Fix removes FOR SYSTEM_TIME ALL from VIEW by accessing original
SYSTEM_TIME clause: the one specified in parser. As a side-effect
EXPLAIN SELECT displays SYSTEM_TIME specified in SELECT which is
user-friendly.
This commit is contained in:
Aleksey Midenkov
2020-10-20 10:49:54 +03:00
parent a3c379ea61
commit ddea8f6a39
7 changed files with 39 additions and 15 deletions
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11
mysql-test/suite/versioning/r/view.result
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@ -279,3 +279,14 @@ b check_row(row_start, row_end)
drop view v2;
drop view v1;
drop table t1, t2;
#
# MDEV-23779 Error upon querying the view, that selecting from versioned table with partitions
#
create table t1 (i int) with system versioning
partition by system_time (partition p0 history, partition pn current);
create view v1 as select * from t1 partition (pn);
show create view v1;
View Create View character_set_client collation_connection
v1 CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`i` AS `i` from `t1` PARTITION (`pn`) latin1 latin1_swedish_ci
drop view v1;
drop table t1;