null date comparison - Mailing list pgsql-general

From Jeff Sacksteder
Subject null date comparison
Date
Msg-id 71650A6F73F1D411BE8000805F65E3CB198190@SRV-03
Whole thread Raw
List pgsql-general
I'm having trouble doing a select on empty date fields.

Suppose my table is composed of employee_number(char), hire_date(date), and
termination_date(date).
I would expect to be able to say:

    'select * from employee_tables where termination_date = null'
or:
    'select * from employee_tables where isfinite(termination_date) <>
1'

...but no luck. What is the proper way to select undefined dates?



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