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MDEV-20732 MDB now correctly estimates a length of the FORMAT() result for

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doubles in scientific notation with a big integer part.
This commit is contained in:
Roman Nozdrin
2019-10-09 03:13:13 -05:00
parent 6535827885
commit ad8266a5c2
9 changed files with 2041 additions and 8 deletions
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6
mysql-test/main/func_str.result
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@ -745,7 +745,7 @@ t1 CREATE TABLE `t1` (
`conv(130,16,10)` varchar(64) DEFAULT NULL,
`hex(130)` varchar(6) DEFAULT NULL,
`char(130)` varbinary(4) DEFAULT NULL,
`format(130,10)` varchar(45) DEFAULT NULL,
`format(130,10)` varchar(25) DEFAULT NULL,
`left(_latin2'a',1)` varchar(1) CHARACTER SET latin2 DEFAULT NULL,
`right(_latin2'a',1)` varchar(1) CHARACTER SET latin2 DEFAULT NULL,
`lcase(_latin2'a')` varchar(1) CHARACTER SET latin2 DEFAULT NULL,
@ -2708,7 +2708,7 @@ create table t1(a float);
insert into t1 values (1.33);
select format(a, 2) from t1;
Catalog Database Table Table_alias Column Column_alias Type Length Max length Is_null Flags Decimals Charsetnr
def format(a, 2) 253 57 4 Y 0 39 8
def format(a, 2) 253 4 4 Y 0 39 8
format(a, 2)
1.33
drop table t1;
@ -3042,7 +3042,7 @@ CREATE TABLE t1 AS SELECT format(123,2,'no_NO');
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`format(123,2,'no_NO')` varchar(45) DEFAULT NULL
`format(123,2,'no_NO')` varchar(17) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
SELECT * FROM t1;
format(123,2,'no_NO')