"Florian G. Pflug" <[EMAIL PROTECTED]> writes:
> At least for me, the least surprising behaviour would be to
> revert it too. Than the rule becomes "a function is always
> executed in a pseudo-subtransaction that affects only GUCs"
Only if it has at least one SET clause. The overhead is too high
to insist on this for every function call.
regards, tom lane
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
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