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Merge branch '10.2' into 10.3

This commit is contained in:
Sergei Golubchik
2020-11-09 23:32:49 +01:00
7 changed files with 144 additions and 16 deletions

View File

@ -2067,6 +2067,52 @@ set eq_range_index_dive_limit=default;
drop table t1;
--echo #
--echo # MDEV-24117: Memory management problem in statistics state...
--echo # (just the testcase)
--echo #
create table t0(a int);
insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
create table t1(a int);
# 4K rows
insert into t1
select A.a + B.a* 10 + C.a * 100 + D.a * 1000
from t0 A, t0 B, t0 C, t0 D
where D.a<4;
create table t2 (
a int,
b int,
key(a)
);
insert into t2 values (1,1),(2,2),(3,3);
set @query=(select group_concat(a) from t1);
set @tmp_24117= @@max_session_mem_used;
--echo #
--echo # On debug build, the usage was
--echo # - 2.8M without the bug
--echo # - 1G with the bug.
set max_session_mem_used=64*1024*1024;
set @query=concat('explain select * from t2 where a in (', @query, ')');
prepare s from @query;
--echo # This should not fail with an error:
execute s;
set max_session_mem_used=@tmp_24117;
deallocate prepare s;
drop table t0,t1,t2;
--echo #
--echo # MDEV-23811: Both disjunct of WHERE condition contain range conditions
--echo # for the same index such that the second range condition