Re: copy from with trigger - Mailing list pgsql-general

From Tom Lane
Subject Re: copy from with trigger
Date
Msg-id 9135.1238988396@sss.pgh.pa.us
Whole thread Raw
In response to copy from with trigger  (Chris spotts <rfusca@gmail.com>)
Responses Re: copy from with trigger
List pgsql-general
Chris spotts <rfusca@gmail.com> writes:
> I'm trying to copy from a tab delimited file.  The dates inside the file
> are Unix timestamp style dates.
> I thought the following script would do the trick, but it just gives me
> an error saying
> ERROR:  invalid input syntax for type timestamp: "1238736600"
> CONTEXT:  COPY testtable line 1, column acquire_time: "1238736600"

A trigger isn't going to help in the least for that; the data has to be
a valid timestamp before the trigger will ever see it.

The usual trick for this type of conversion is to load the data into a
temporary table that has simple column types (eg integer or text) and
then do your transformations during an INSERT/SELECT into the real
target table.

            regards, tom lane

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