The error is : ERROR: invalid input syntax for integer:
Server log for PostgreSQL or, probably more usefully, the application log of the problem that sending what appears to be an empty string and expecting the server to convert that into an integer. The empty string cannot be cast to integer, only numbers and NULL can be.
This can occur when bulk-uploading data from with decimal numbers, too. In other words ‘0’ can be cast as an integer, but ‘0.0’, when found in the same column, cannot.
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