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Re: create index with substr function - Mailing list pgsql-performance

From Tom Lane
Subject Re: create index with substr function
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Msg-id [email protected]
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In response to create index with substr function  ("Ray" <[email protected]>)
Responses Re: create index with substr function
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"Ray" <[email protected]> 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

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