Eric Lippmann 09d5ec6b7a postgres: Return 0 if a timestamp looks like the default timestamp
The PostgreSQL IDO schema sets the default value for timestamps with time zone
to the epoch time w/o giving the time zone +00. Thus default timestamps are always
wrong when using a time zone other than 'UTC'.

refs #7919
2015-01-16 17:05:50 +01:00
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