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MDEV-21445 Strange/inconsistent behavior of IN condition when mixing numbers and strings

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This commit is contained in:
Alexander Barkov
2022-07-06 15:42:21 +04:00
parent bdc1134dea
commit 57f5c319af
63 changed files with 733 additions and 498 deletions
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28
mysql-test/main/func_in.result
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@ -498,21 +498,21 @@ f1
a
1
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'b'
Warning 1292 Truncated incorrect DECIMAL value: 'b'
select f1, case f1 when 'a' then '+' when 1 then '-' end from t1;
f1 case f1 when 'a' then '+' when 1 then '-' end
a +
b NULL
1 -
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'b'
Warning 1292 Truncated incorrect DECIMAL value: 'b'
create index t1f1_idx on t1(f1);
select f1 from t1 where f1 in ('a',1);
f1
1
a
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'b'
Warning 1292 Truncated incorrect DECIMAL value: 'b'
explain select f1 from t1 where f1 in ('a',1);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index t1f1_idx t1f1_idx 2 NULL 3 Using where; Using index
@ -527,8 +527,8 @@ select f1 from t1 where f1 in (2,1);
f1
1
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'a'
Warning 1292 Truncated incorrect DOUBLE value: 'b'
Warning 1292 Truncated incorrect DECIMAL value: 'a'
Warning 1292 Truncated incorrect DECIMAL value: 'b'
explain select f1 from t1 where f1 in (2,1);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 index t1f1_idx t1f1_idx 2 NULL 3 Using where; Using index
@ -539,9 +539,9 @@ f2
0
2
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'a'
Warning 1292 Truncated incorrect DOUBLE value: 'a'
Warning 1292 Truncated incorrect DOUBLE value: 'a'
Warning 1292 Truncated incorrect DECIMAL value: 'a'
Warning 1292 Truncated incorrect DECIMAL value: 'a'
Warning 1292 Truncated incorrect DECIMAL value: 'a'
explain select f2 from t2 where f2 in ('a',2);
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 index t2f2 t2f2 5 NULL 3 Using where; Using index
@ -549,21 +549,21 @@ select f2 from t2 where f2 in ('a','b');
f2
0
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'a'
Warning 1292 Truncated incorrect DOUBLE value: 'b'
Warning 1292 Truncated incorrect DECIMAL value: 'a'
Warning 1292 Truncated incorrect DECIMAL value: 'b'
explain select f2 from t2 where f2 in ('a','b');
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 index t2f2 t2f2 5 NULL 3 Using where; Using index
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'a'
Warning 1292 Truncated incorrect DOUBLE value: 'b'
Warning 1292 Truncated incorrect DECIMAL value: 'a'
Warning 1292 Truncated incorrect DECIMAL value: 'b'
select f2 from t2 where f2 in (1,'b');
f2
0
1
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'b'
Warning 1292 Truncated incorrect DOUBLE value: 'b'
Warning 1292 Truncated incorrect DECIMAL value: 'b'
Warning 1292 Truncated incorrect DECIMAL value: 'b'
explain select f2 from t2 where f2 in (1,'b');
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t2 index t2f2 t2f2 5 NULL 3 Using where; Using index