1632a172f3
If $limit is empty(), no limit is set, so we can set the LIMIT statement to "" to achieve the same. But an empty() $limit can be "0", so the generated SQL statement could end with "0" instead of the LIMIT statement. We catch this with forcing an empty() $limit to "". Fixes #636. (No matter that this shouldn't even happen.) Signed-off-by: Thomas Hochstein <thh@inter.net>
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