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| author | Alexander Barkov <bar@mariadb.com> | 2020-08-03 10:53:06 +0400 |
|---|---|---|
| committer | Alexander Barkov <bar@mariadb.com> | 2020-08-03 10:53:06 +0400 |
| commit | 9840bb21ef683afd59a30a79ebc5bd5ad33a7c1a (patch) | |
| tree | d3a79d95550a05c8381855adaa45bc5f2941619d /mysql-test/main/func_math.result | |
| parent | 97f7bfcebcc17df337bd97c0a9535a906547016d (diff) | |
| download | mariadb-git-9840bb21ef683afd59a30a79ebc5bd5ad33a7c1a.tar.gz | |
MDEV-23366 ROUND(18446744073709551615,rand()*0) returns a wrong result
Changing that in case of *INT and hex hybrid input:
- ROUND(x,NULL) creates a column with the same type as x.
The old code created a DOUBLE column, which was not relevant at all.
This change simplifies the code a lot.
- ROUND(x,non_constant) creates a column of the INT, BIGINT or DECIMAL
data type (depending on the exact type of x).
The old code created a column of the DOUBLE data type,
which lead to precision loss. Hence MDEV-23366.
- ROUND(bigint_30,negative_constant) creates a column of the DECIMAL(30,0)
data type. The old code created DECIMAL(29,0), which looked strange:
the data type promoted to a higher one, but max length reduced.
Now the length attribute is preserved.
Diffstat (limited to 'mysql-test/main/func_math.result')
| -rw-r--r-- | mysql-test/main/func_math.result | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/mysql-test/main/func_math.result b/mysql-test/main/func_math.result index 68922b09bf7..163478f330c 100644 --- a/mysql-test/main/func_math.result +++ b/mysql-test/main/func_math.result @@ -348,7 +348,6 @@ truncate(4, cast(-2 as unsigned)) truncate(4, 18446744073709551614) truncate(4, 4 4 0 Warnings: Note 1105 Cast to unsigned converted negative integer to it's positive complement -Note 1105 Cast to unsigned converted negative integer to it's positive complement select round(10000000000000000000, -19), truncate(10000000000000000000, -19); round(10000000000000000000, -19) truncate(10000000000000000000, -19) 10000000000000000000 10000000000000000000 @@ -1784,7 +1783,7 @@ ROUND(10e0,NULL) AS c3; SHOW CREATE TABLE t1; Table Create Table t1 CREATE TABLE `t1` ( - `c1` double DEFAULT NULL, + `c1` int(2) DEFAULT NULL, `c2` double DEFAULT NULL, `c3` double DEFAULT NULL ) ENGINE=MyISAM DEFAULT CHARSET=latin1 |