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MDEV-15378 Valid query causes invalid view definition due to syntax limitation in FOR SYSTEM_TIME

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fix parsing of the AS OF clause
This commit is contained in:
Sergei Golubchik 2018-03-03 20:58:30 +03:00
parent bb56a06d26
commit 1a86fc5f14
3 changed files with 32 additions and 9 deletions
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15
mysql-test/suite/versioning/r/view.result
View File

@ -107,7 +107,9 @@ create or replace view vt1 as select * from t1 union select * from t2;
select * from vt1;
a
1
#
# MDEV-14689 crash on second PS execute
#
create or replace table t1 (a int);
create or replace view v1 as select * from t1;
create or replace table t2 (b int) with system versioning;
@ -119,6 +121,9 @@ a
drop database test;
create database test;
use test;
#
# MDEV-15146 SQLError[4122]: View is not system versioned
#
create table t1 (a int) with system versioning;
insert t1 values (1),(2);
set @a=now(6);
@ -133,5 +138,15 @@ a
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`.`a` AS `a` from `t1` latin1 latin1_swedish_ci
#
# MDEV-15378 Valid query causes invalid view definition due to syntax limitation in FOR SYSTEM_TIME
#
create or replace table t1 (i int) with system versioning;
select * from t1 for system_time as of now() - interval 6 second;
i
create or replace view v1 as select * from t1 for system_time as of date_sub(now(), interval 6 second);
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` FOR SYSTEM_TIME AS OF current_timestamp() - interval 6 second latin1 latin1_swedish_ci
drop view v1;
drop table t1;

18
mysql-test/suite/versioning/t/view.test
View File

@ -89,7 +89,9 @@ create or replace table t2 (a int);
create or replace view vt1 as select * from t1 union select * from t2;
select * from vt1;
--echo #
--echo # MDEV-14689 crash on second PS execute
--echo #
create or replace table t1 (a int);
create or replace view v1 as select * from t1;
create or replace table t2 (b int) with system versioning;
@ -100,10 +102,9 @@ drop database test;
create database test;
use test;
#
# MDEV-15146 SQLError[4122]: View is not system versioned
#
--echo #
--echo # MDEV-15146 SQLError[4122]: View is not system versioned
--echo #
create table t1 (a int) with system versioning;
insert t1 values (1),(2);
set @a=now(6);
@ -112,5 +113,14 @@ delete from t1;
select * from v1;
select * from v1 for system_time as of @a;
show create view v1;
--echo #
--echo # MDEV-15378 Valid query causes invalid view definition due to syntax limitation in FOR SYSTEM_TIME
--echo #
create or replace table t1 (i int) with system versioning;
select * from t1 for system_time as of now() - interval 6 second;
create or replace view v1 as select * from t1 for system_time as of date_sub(now(), interval 6 second);
show create view v1;
drop view v1;
drop table t1;

8
sql/sql_yacc.yy
View File

@ -9229,7 +9229,7 @@ history_point:
{
$$= Vers_history_point(VERS_TIMESTAMP, $1);
}
| opt_history_unit simple_expr
| opt_history_unit bit_expr
{
$$= Vers_history_point($1, $2);
}
@ -9255,13 +9255,11 @@ system_time_expr:
{
Lex->vers_conditions.init(SYSTEM_TIME_ALL);
}
| FROM history_point
TO_SYM history_point
| FROM history_point TO_SYM history_point
{
Lex->vers_conditions.init(SYSTEM_TIME_FROM_TO, $2, $4);
}
| BETWEEN_SYM history_point
AND_SYM history_point
| BETWEEN_SYM history_point AND_SYM history_point
{
Lex->vers_conditions.init(SYSTEM_TIME_BETWEEN, $2, $4);
}