Hasan Mokhtari Sangchi <mokhtari@hadid.sharif.ac.ir> writes:
> If I want to create an index on a field by type 'timestamp'
> postgres give me following error message :
> ' can not find a default operator class for type 1296.'
> what can I do ?
Upgrade to a more recent version of Postgres.
Or, change the field to be type datetime, which is the better-supported
datatype in old versions...
regards, tom lane