Thanks Tom,

Is that documented somewhere? I can't seem to see any mention of it in the docs.

Tom Lane wrote:
Marc McIntyre <[EMAIL PROTECTED]> writes:
... Is there a way to perform this efficiently in one query ?

No, because you're hoping for an indexscan optimization of a LIKE
query, and that can only happen if the pattern is a plan-time constant.

                        regards, tom lane

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