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# Previously, empty strings were either rejected (for scaled integers) # or silently converted to 0 (unscaled integers & floats). Also, in some # cases, null zvals were converted to empty strings, which were # consequently rejected as unconvertible values. # In the new situation, empty strings will be handled as NULLs for # fields that cannot distinguish between the two (numeric/date/time). # Additionally, all range and value checking is now carried out by the # database, so there is a consistent interface for error handling.