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MDEV-25704 Add RANDOM_BYTES function

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MySQL 5.6 added the RANDOM_BYTES function.
https://dev.mysql.com/doc/refman/5.6/en/encryption-functions.html#function_random-bytes

This is needed for compatibility purposes.
This commit is contained in:
Vanislavsky
2022-02-13 23:19:02 +10:00
committed by Sergei Golubchik
parent 0fbbf2ee78
commit 3c2b0cac52
7 changed files with 227 additions and 1 deletions
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56
mysql-test/main/func_str.result
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@ -5265,3 +5265,59 @@ f
#
# End of 10.4 tests
#
#
# MDEV-25704 Function random_bytes
#
create table t1 as select random_bytes(100);
show create table t1;
Table Create Table
t1 CREATE TABLE `t1` (
`random_bytes(100)` varbinary(100) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
# The sequence starts at 17 so that the probability of test failure is small enough (about 2^(-136))
select count(*) from seq_17_to_1024 where random_bytes(seq) <=> random_bytes(seq);
count(*)
0
select (count(*) = 1024) from seq_1_to_1024 where length(random_bytes(seq)) = seq;
(count(*) = 1024)
1
#
# Test NULL output for NULL input
#
SELECT random_bytes(NULL);
random_bytes(NULL)
NULL
#
# Test For values outside range from 1 to 1024, an error occurs
#
SELECT random_bytes(0);
ERROR 22003: length value is out of range in 'random_bytes(0)'
SELECT random_bytes(-1);
ERROR 22003: length value is out of range in 'random_bytes(-1)'
SELECT random_bytes(-100);
ERROR 22003: length value is out of range in 'random_bytes(-100)'
SELECT random_bytes(-26);
ERROR 22003: length value is out of range in 'random_bytes(-26)'
SELECT random_bytes(-132);
ERROR 22003: length value is out of range in 'random_bytes(-132)'
SELECT random_bytes(1025);
ERROR 22003: length value is out of range in 'random_bytes(1025)'
SELECT random_bytes(11111);
ERROR 22003: length value is out of range in 'random_bytes(11111)'
SELECT random_bytes(2056);
ERROR 22003: length value is out of range in 'random_bytes(2056)'
#
# Test For invalid argument, an error occurs
#
SELECT random_bytes('s');
ERROR 22003: length value is out of range in 'random_bytes('s')'
SELECT random_bytes('r');
ERROR 22003: length value is out of range in 'random_bytes('r')'
SELECT random_bytes('res');
ERROR 22003: length value is out of range in 'random_bytes('res')'
SELECT random_bytes('test');
ERROR 22003: length value is out of range in 'random_bytes('test')'
#
# End of 10.10 tests
#