Re: Conflict handling for COPY FROM

Hello,

The attached patch add error handling for
Extra data

missing data

invalid oid

null oid and 

row count mismatch

And the record that field on the above case write to the file with appended error message in it and in case of unique violation or exclusion constraint violation error the failed record write as it is because the case of the error can not be identified specifically

The new syntax became :

COPY ... WITH ON CONFLICT LOG maximum_error, LOG FILE NAME '…';

Regards

Surafel