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4d225ba0e6
Reject aggregates, window functions, and procedures. Aggregates failed anyway, though with a somewhat obscure error message. Window functions would hit an Assert or null-pointer dereference. Procedures seemed to work as long as you didn't try to do transaction control, but (a) transaction control is sort of the point of a procedure, and (b) it's not entirely clear that no bugs lurk in that path. Given the lack of testing of this area, it seems safest to be conservative in what we support. Also reject proretset functions, as the fastpath protocol can't support returning a set. Also remove an easily-triggered assertion that the given OID isn't 0; the subsequent lookups can handle that case themselves. Per report from Theodor-Arsenij Larionov-Trichkin. Back-patch to all supported branches. (The procedure angle only applies in v11+, of course.) Discussion: https://postgr.es/m/2039442.1615317309@sss.pgh.pa.us |
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