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This is one of those vague messages, which takes a little time to run down, but once you understand it, is easily fixed.  Basically, this error happens because you have mismatched and incompatible fields.

Question

What does “ERROR: pg_atoi: error in <ascii>: can’t parse <ascii>” mean?

Answer

The error is the result of an implicit conversion being performed on a character field (varchar/char) while being compared to a numeric field or value.

Vendor Reference Link

• Implicit and explicit casting