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MDEV-30879 Add support for up to BASE 62 to CONV()

Browse Source 
BASE 62 uses 0-9, A-Z and then a-z to give the numbers 0-61. This patch
increases the range of the string functions to cover this.

Based on ideas and tests in PR #2589, but re-written into the charset
functions.

Includes fix by Sergei, UBSAN complained:
ctype-simple.c:683:38: runtime error: negation of -9223372036854775808
cannot be represented in type 'long long int'; cast to an unsigned
type to negate this value to itself

Co-authored-by: Weijun Huang <huangweijun1001@gmail.com>
Co-authored-by: Sergei Golubchik <serg@mariadb.org>
This commit is contained in:
Andrew Hutchings
2023-11-17 17:41:23 +00:00
committed by Andrew Hutchings
parent be6d48fd53
commit f552febe43
10 changed files with 160 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
mysql-test/main/func_str.result
View File

@ -1078,8 +1078,8 @@ lpad(12345, 5, "#")
SELECT conv(71, 10, 36), conv('1Z', 36, 10);
conv(71, 10, 36) conv('1Z', 36, 10)
1Z 71
SELECT conv(71, 10, 37), conv('1Z', 37, 10), conv(0,1,10),conv(0,0,10), conv(0,-1,10);
conv(71, 10, 37) conv('1Z', 37, 10) conv(0,1,10) conv(0,0,10) conv(0,-1,10)
SELECT conv(71, 10, 63), conv('1Z', 63, 10), conv(0,1,10),conv(0,0,10), conv(0,-1,10);
conv(71, 10, 63) conv('1Z', 63, 10) conv(0,1,10) conv(0,0,10) conv(0,-1,10)
NULL NULL NULL NULL NULL
create table t1 (id int(1), str varchar(10)) DEFAULT CHARSET=utf8;
insert into t1 values (1,'aaaaaaaaaa'), (2,'bbbbbbbbbb');
@ -5535,3 +5535,63 @@ aes_encrypt(a,a) is null
#
# End of 11.2 tests
#
#
# MDEV-30879 Add conversion to based 62 for CONV function
#
SELECT CONV('1z', 62, 10);
CONV('1z', 62, 10)
123
SELECT CONV('1Z', 62, 10);
CONV('1Z', 62, 10)
97
SELECT CONV('-1Z', 62, 10);
CONV('-1Z', 62, 10)
18446744073709551519
SELECT CONV('-1Z', -62, 10);
CONV('-1Z', -62, 10)
18446744073709551519
SELECT CONV('-1Z', 62, -10);
CONV('-1Z', 62, -10)
-97
SELECT CONV('-1Z', -62, -10);
CONV('-1Z', -62, -10)
-97
SELECT CONV('AzL8n0Y58m7', 62, 10);
CONV('AzL8n0Y58m7', 62, 10)
9223372036854775807
SELECT CONV('LygHa16AHYE', 62, 10);
CONV('LygHa16AHYE', 62, 10)
18446744073709551614
SELECT CONV('LygHa16AHYF', 62, 10);
CONV('LygHa16AHYF', 62, 10)
18446744073709551615
SELECT CONV('LygHa16AHZ0', 62, 10);
CONV('LygHa16AHZ0', 62, 10)
18446744073709551615
SELECT CONV('-AzL8n0Y58m7', -62, -10);
CONV('-AzL8n0Y58m7', -62, -10)
-9223372036854775807
SELECT CONV('-AzL8n0Y58m8', -62, -10);
CONV('-AzL8n0Y58m8', -62, -10)
-9223372036854775808
SELECT CONV('-AzL8n0Y58m9', -62, -10);
CONV('-AzL8n0Y58m9', -62, -10)
-9223372036854775808
SELECT CONV('-LygHa16AHZ0', -62, -10);
CONV('-LygHa16AHZ0', -62, -10)
-9223372036854775808
SELECT CONV('LygHa16AHYF', 63, 10);
CONV('LygHa16AHYF', 63, 10)
NULL
SELECT CONV(18446744073709551615, 10, 63);
CONV(18446744073709551615, 10, 63)
NULL
SELECT CONV(18446744073709551615, 10, 62);
CONV(18446744073709551615, 10, 62)
LygHa16AHYF
SELECT CONV(-9223372036854775808, -10, -62);
CONV(-9223372036854775808, -10, -62)
-AzL8n0Y58m8
#
# End of 11.4 tests
#