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Sequences with negative numbers and auto_increment_increment crashes

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This also fixes MDEV-16313 Assertion `next_free_value % real_increment == offset' fails upon CREATE SEQUENCE in galera cluster

Fixed by adding llabs() to assert.
Also adjusted auto_increment_offset to mod auto_increment_increment.
This commit is contained in:
Monty
2018-08-30 17:32:26 +03:00
parent ceb5597184
commit 7aa80ba66b
5 changed files with 89 additions and 2 deletions
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30
mysql-test/suite/sql_sequence/auto_increment.result Normal file
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@ -0,0 +1,30 @@
set global auto_increment_increment= 2, auto_increment_offset= 2;
create sequence s start with -3 minvalue= -1000 increment 0;
select nextval(s);
nextval(s)
-2
select nextval(s);
nextval(s)
0
flush tables;
select nextval(s);
nextval(s)
1998
drop sequence s;
set global auto_increment_increment= 2, auto_increment_offset= 1;
create sequence s start with -3 minvalue= -1000 increment 0;
select nextval(s);
nextval(s)
-3
select nextval(s);
nextval(s)
-1
select nextval(s);
nextval(s)
1
flush tables;
select nextval(s);
nextval(s)
1997
drop sequence s;
set global auto_increment_increment= default, auto_increment_offset= default;