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3198bc839d
SELECT * FROM t1 FOR SYSTEM_TIME AS OF ... becomes ambiguous, but it's the same as with SELECT ... UNION SELECT ... ORDER BY ...
41 lines
1.7 KiB
Plaintext
41 lines
1.7 KiB
Plaintext
create table t (
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a int,
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b int without system versioning
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) with system versioning;
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insert into t values(1, 2);
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insert into t values(3, 4);
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select * from t;
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select a from t for system_time as of timestamp now(6);
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select a, b, b+0 from t for system_time as of timestamp now(6);
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select * from t for system_time as of timestamp now(6);
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select count(*) from t group by b for system_time as of timestamp now(6);
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select * from t for system_time as of timestamp now(6) order by b asc;
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select * from t for system_time as of timestamp now(6) order by b desc;
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select * from t group by a having a=2 for system_time as of timestamp now(6);
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select * from t group by b having b=2 for system_time as of timestamp now(6);
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select a from t where b=2 for system_time as of timestamp now(6);
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select a from t where b=NULL for system_time as of timestamp now(6);
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select a from t where b is NULL for system_time as of timestamp now(6);
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select count(*), b from t group by b having b=NULL for system_time as of timestamp now(6);
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select a, b from t;
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select count(*) from t for system_time as of timestamp now(6) group by b;
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select * from t for system_time as of timestamp now(6) group by b having b=2;
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select a from t for system_time as of timestamp now(6) where b=2;
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select a from t for system_time as of timestamp now(6) where b=NULL;
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select a from t for system_time as of timestamp now(6) where b is NULL;
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select count(*), b from t for system_time as of timestamp now(6) group by b having b=NULL;
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create or replace table t (
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a int,
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b int not null without system versioning
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) with system versioning;
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insert into t values (1, 2), (3, 4);
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select * from t for system_time as of timestamp now(6);
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select * from t for system_time as of timestamp now(6) where b is NULL;
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drop table t;
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