locate function returns invalid value when first parameter is empty string
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Key: DERBY-1949
URL: http://issues.apache.org/jira/browse/DERBY-1949
Project: Derby
Issue Type: Bug
Components: SQL
Affects Versions: 10.2.1.6, 10.1.3.1
Environment: N/A
Reporter: Oleksandr Alesinskyy
locate function returns false invalid when first parameter is empty string,
e.g.
values(locate('','A')
results in 1, which is obviously wrong
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