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for now, remove FOR SYSTEM_TIME at the end of the query

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non-standard, redundant, potentially risky in the future,
hides bugs. See #383, #384, #385

Fixed a parser bug where
SELECT * FROM (t1 join t2) FOR SYSTEM_TIME ...
was not an error.
This commit is contained in:
Sergei Golubchik
2017-12-11 14:09:58 +01:00
parent a1141e226d
commit ca6454bcfe
13 changed files with 124 additions and 156 deletions
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39
mysql-test/suite/versioning/r/optimized.result
View File

@ -25,7 +25,7 @@ a b
3 NULL
Warnings:
Warning 4112 Attempt to read unversioned field `b` in historical query
select count(*) from t group by b for system_time as of timestamp now(6);
select count(*) from t for system_time as of timestamp now(6) group by b;
count(*)
2
Warnings:
@ -44,41 +44,10 @@ a b
Warnings:
Warning 4112 Attempt to read unversioned field `b` in historical query
Warning 4112 Attempt to read unversioned field `b` in historical query
select * from t group by a having a=2 for system_time as of timestamp now(6);
select * from t for system_time as of timestamp now(6) group by a having a=2;
a b
Warnings:
Warning 4112 Attempt to read unversioned field `b` in historical query
select * from t group by b having b=2 for system_time as of timestamp now(6);
a b
Warnings:
Warning 4112 Attempt to read unversioned field `b` in historical query
select a from t where b=2 for system_time as of timestamp now(6);
a
Warnings:
Warning 4112 Attempt to read unversioned field `b` in historical query
select a from t where b=NULL for system_time as of timestamp now(6);
a
Warnings:
Warning 4112 Attempt to read unversioned field `b` in historical query
select a from t where b is NULL for system_time as of timestamp now(6);
a
1
3
Warnings:
Warning 4112 Attempt to read unversioned field `b` in historical query
select count(*), b from t group by b having b=NULL for system_time as of timestamp now(6);
count(*) b
Warnings:
Warning 4112 Attempt to read unversioned field `b` in historical query
select a, b from t;
a b
1 2
3 4
select count(*) from t for system_time as of timestamp now(6) group by b;
count(*)
2
Warnings:
Warning 4112 Attempt to read unversioned field `b` in historical query
select * from t for system_time as of timestamp now(6) group by b having b=2;
a b
Warnings:
@ -101,6 +70,10 @@ select count(*), b from t for system_time as of timestamp now(6) group by b havi
count(*) b
Warnings:
Warning 4112 Attempt to read unversioned field `b` in historical query
select a, b from t;
a b
1 2
3 4
create or replace table t (
a int,
b int not null without system versioning