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a4272bf154
Don't use hidden system time in versioning, but keep the system time logic in THD to workaround low-res system clock and replication not versioned to versioned. This reverts MDEV-14788 (System versioning cannot be based on local timestamps, as it is now). Versioning is based on local timestamps again, but timestamps are protected by MDEV-15923 (option to control who can set session @@timestamp).
41 lines
1.6 KiB
Plaintext
41 lines
1.6 KiB
Plaintext
--source include/have_partition.inc
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#
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# partition rotation
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#
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set timestamp=unix_timestamp('2001-02-03 10:20:30');
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create or replace table t1 (i int) with system versioning
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partition by system_time interval 1 day
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subpartition by key (i) subpartitions 2
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(partition p1 history, partition pn current);
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set timestamp=unix_timestamp('2001-02-03 10:20:40');
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insert t1 values (1); delete from t1;
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set timestamp=unix_timestamp('2001-02-04 10:20:50');
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insert t1 values (2); delete from t1;
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select subpartition_name,partition_description,table_rows from information_schema.partitions where table_schema='test' and table_name='t1';
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set timestamp=unix_timestamp('2001-02-04 10:20:55');
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alter table t1 add partition (partition p0 history, partition p2 history);
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set timestamp=unix_timestamp('2001-02-04 10:30:00');
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insert t1 values (4),(5);
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set timestamp=unix_timestamp('2001-02-04 10:30:10');
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update t1 set i=6 where i=5;
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select subpartition_name,partition_description,table_rows from information_schema.partitions where table_schema='test' and table_name='t1';
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--echo ## pruning check
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set @ts=(select partition_description from information_schema.partitions
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where table_schema='test' and table_name='t1' and partition_name='p0' limit 1);
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--sorted_result
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select * from t1;
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explain partitions select * from t1;
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--replace_column 10 #
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explain partitions select * from t1 for system_time as of '2001-02-04 10:20:30';
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set @ts=(select row_end from t1 for system_time all where i=1);
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select * from t1 for system_time all where row_end = @ts;
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--replace_column 5 # 10 # 11 #
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explain partitions select * from t1 for system_time all where row_end = @ts;
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drop table t1;
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