Teodor Sigaev <[EMAIL PROTECTED]> writes: >> Huh? Why two? Either you are allowed to cluster on indexes of this >> type, or you're not. I don't see the point of any other distinction.
> amclusterable - as you suggest: Does cluster command something or not? This is what we need. > amclustered - table on such index is always clustered, cluster command does > nothing, but optimizer/planner takes clustering into > consideration for query planning. "Takes clustering into account" means nothing. We don't need that. Any such consideration would be handled by the AM-specific amcostestimate function. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly