creating an index on a function

Good Morning everyone!

I just tried to create an index on a function with no success. My syntax
seems to match the syntax shown in the docs for Create Index, but I get an
error. Any thoughts would be appreciated. Here is my attempt-

First, I did a select to make sure I had the function syntax correct, and
then tried to create the index:


staging=# select count(*) from event where
date_trunc('day',event_date_time)='07/27/2001';count
-------   27
(1 row)

staging=#
staging=# create index event_day on
event(date_trunc('day',event_date_time));
ERROR:  parser: parse error at or near "'"

Thanks!

-Nick

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Nick Fankhauser  nickf@ontko.com  Phone 1.765.935.4283  Fax 1.765.962.9788
Ray Ontko & Co.     Software Consulting Services     http://www.ontko.com/