Port Bug Report: Can't create indicies on type "timestamp"

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POSTGRESQL BUG REPORT TEMPLATE
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Your name : Nathan Parker
Your email address : nparker(at)pobox(dot)com

Category : runtime: back-end
Severity : non-critical

Summary: Can't create indicies on type "timestamp"

System Configuration
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Operating System : Linux 2.0.36 RedHat

PostgreSQL version : 6.5

Compiler used : gcc 2.8.1

Hardware:
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Linux sprocket.beast.com 2.0.36 #10 Mon Mar 1 05:23:53 MST 1999 i486 unknown

Versions of other tools:
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Problem Description:
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Whenever I try to create an index that includes a "timestamp"
field, I get this error:
ERROR: Can't find a default operator class for type 1296.

This prevents me from using the timestamp type altogether.
Big bummer. I like PostgreSQL, but I'm thinking of
switching to Sybase's free Linux server. Thanks for all
the good work.

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Test Case:
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% createdb foo
% psql foo
Welcome to the POSTGRESQL interactive sql monitor:
Please read the file COPYRIGHT for copyright terms of POSTGRESQL
[PostgreSQL 6.5.0 on i486-pc-linux-gnu, compiled by gcc 2.8.1]

type \? for help on slash commands
type \q to quit
type \g or terminate with semicolon to execute query
You are currently connected to the database: foo

foo=> create table foo1 (ts timestamp);
CREATE
foo=> create index foo1_idx on foo1 (ts);
ERROR: Can't find a default operator class for type 1296.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

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Solution:
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