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Merge branch '10.5' into 10.6

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This commit is contained in:
Oleksandr Byelkin
2024-10-09 08:38:48 +02:00
parent a931da82fa 23820f1d79
commit 1d0e94c55f
45 changed files with 491 additions and 171 deletions
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40
mysql-test/main/selectivity_innodb_notembedded.result
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@ -218,26 +218,28 @@ 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;
# Must have a note that "multiplier is too high":
select
select
json_detailed(json_extract(trace,'$**.selectivity_for_indexes')) as JS
from
information_schema.optimizer_trace;
from
opt_trace;
JS
[
[
@ -253,10 +255,10 @@ JS
]
]
# Must not include 1.79...e308 as cost:
select
select
json_detailed(json_extract(trace,'$**.best_access_path')) as JS
from
information_schema.optimizer_trace;
from
opt_trace;
JS
[
{
@ -278,20 +280,22 @@ JS
}
}
]
drop table opt_trace;
# Disable the fix and try the same:
set @@optimizer_adjust_secondary_key_costs='';
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
drop table t1;
create temporary table opt_trace as
select * from information_schema.optimizer_trace;
# Shows a high multiplier, without a "note":
select
select
json_detailed(json_extract(trace,'$**.selectivity_for_indexes')) as JS
from
information_schema.optimizer_trace;
from
opt_trace;
JS
[
[
@ -307,10 +311,10 @@ JS
]
]
# Includes 1.79...e308 as cost:
select
select
json_detailed(json_extract(trace,'$**.best_access_path')) as JS
from
information_schema.optimizer_trace;
from
opt_trace;
JS
[
{
@ -332,7 +336,9 @@ JS
}
}
]
drop table opt_trace;
set optimizer_adjust_secondary_key_costs=default;
drop table t1;
#
# Clean up
#