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MDEV-34295 CAST(char_col AS DOUBLE) prints redundant spaces in a warning

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Field_string::val_int(), Field_string::val_real(), Field_string::val_decimal()
passed the whole buffer of field_length bytes to data type conversion routines.
This made conversion routines to print redundant trailing spaces in case of warnings.

Adding a method Field_string::to_lex_cstring() and using it inside
val_int(), val_real(), val_decimal(), val_str().

After this change conversion routines get the same value with what val_str() returns,
and no redundant trailing spaces are displayed.
This commit is contained in:
Alexander Barkov
2024-06-04 15:06:37 +04:00
parent 581712b989
commit 5e12d49205
10 changed files with 118 additions and 52 deletions
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2
mysql-test/main/sp-vars.result
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@ -1171,7 +1171,7 @@ SET j= 1 + i;
END|
CALL ctest();
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'string '
Warning 1292 Truncated incorrect DOUBLE value: 'string'
DROP PROCEDURE ctest;
CREATE PROCEDURE vctest()
BEGIN