What's the best way to check if string a begins with string b? Both a and b are coming from fields in a table.
Requirements: * Either a or b might have special chars (such as '%') in them which should NOT do anything special - they're just plain strings, not regular expressions. * a and b can be of arbitrary length (no fixed limits) * Ideally, I'd like it to be transparent to the query engine, so that it can use indexes. If both a and b are indexed, it's possible in theory to use the index to do most of the work - but I can't come up with a query that makes use of it. -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
