Horton

Re: create index with substr function

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: "Ray" <ray_siu@ge-ts.com.hk>
Cc: pgsql-performance@postgresql.org
Date: 2004-10-21T02:59:14Z
Lists: pgsql-performance 
"Ray" <ray_siu@ge-ts.com.hk> writes:
> CREATE INDEX idx_doc_substr_doc_urn ON doc USING btree (SUBSTR(doc_urn,10));
> ERROR:  parser: parse error at or near "10" at character 68

This will work in 7.4, but not older releases.

			regards, tom lane