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func_str.result, func_str.test:

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Adding test case.
item_strfunc.cc:
  bug#11728 string function LEFT, strange undocumented behaviour
  Fixing LEFT and RIGHT return NULL if the second
  argument is NULL.
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bar@myoffice.izhnet.ru
2006-07-07 17:06:30 +05:00
parent a8844cb22a
commit eec0355de2
3 changed files with 10 additions and 2 deletions
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3
mysql-test/r/func_str.result
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@@ -33,6 +33,9 @@ instr('hello','HE') instr('hello',binary 'HE') instr(binary 'hello','HE')
select position(binary 'll' in 'hello'),position('a' in binary 'hello');
position(binary 'll' in 'hello') position('a' in binary 'hello')
3 0
select left('hello',null), right('hello',null);
left('hello',null) right('hello',null)
NULL NULL
select left('hello',2),right('hello',2),substring('hello',2,2),mid('hello',1,5) ;
left('hello',2) right('hello',2) substring('hello',2,2) mid('hello',1,5)
he lo el hello