1
0
mirror of https://github.com/MariaDB/server.git synced 2025-07-27 18:02:13 +03:00

Merge branch '10.11' into 11.2

This commit is contained in:
Oleksandr Byelkin
2024-10-29 16:39:47 +01:00
660 changed files with 8148 additions and 3604 deletions

View File

@ -239,26 +239,28 @@ index (key1, pk),
primary key (pk)
);
insert into t1
select
select
seq, FLOOR(seq/100), 'filler'
from
from
seq_1_to_1000;
analyze table t1;
Table Op Msg_type Msg_text
test.t1 analyze status Engine-independent statistics collected
test.t1 analyze status OK
set optimizer_trace=1;
explain select * from t1
explain select * from t1
where
pk in (1,2,3,4,5) and
key1 <= 4;
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range PRIMARY,key1 PRIMARY 4 NULL 5 Using where
create temporary table opt_trace as
select * from information_schema.optimizer_trace;
# 11.0+ will not attempt to use selectivity(key1):
select
select
json_detailed(json_extract(trace,'$**.selectivity_for_indexes')) as JS
from
information_schema.optimizer_trace;
from
opt_trace;
JS
[
[
@ -269,10 +271,10 @@ JS
]
]
# Must not include 1.79...e308 as cost:
select
select
json_detailed(json_extract(trace,'$**.best_access_path')) as JS
from
information_schema.optimizer_trace;
from
opt_trace;
JS
[
{
@ -303,6 +305,7 @@ JS
}
}
]
drop table opt_trace;
drop table t1;
#
# Clean up