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MDEV-18720 Assertion `inited==NONE' failed in ha_index_init upon update on versioned table with key on blob

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* update system versioning fields before generaled columns
* don't presume that ha_write_row() means INSERT. It could still be UPDATE
* use the correct handler in check_duplicate_long_entry_key()
This commit is contained in:
Sergei Golubchik 2019-02-27 12:34:26 -05:00
commit 304f0084ef
4 changed files with 37 additions and 6 deletions
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16
mysql-test/main/long_unique_bugs.result
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@ -33,3 +33,19 @@ Warnings:
Warning 1265 Data truncated for column 't' at row 1
Warning 1265 Data truncated for column 't' at row 2
drop table t1;
create table t1 ( pk int, f text, primary key (pk), unique(f)) with system versioning;
insert into t1 values (1,'foo');
update t1 set f = 'bar';
select * from t1;
pk f
1 bar
update t1 set f = 'foo';
select * from t1;
pk f
1 foo
select pk, f, row_end > DATE'2030-01-01' from t1 for system_time all;
pk f row_end > DATE'2030-01-01'
1 foo 1
1 foo 0
1 bar 0
drop table t1;