"Tom Lane" <tgl@xxxxxxxxxxxxx> writes: > Alvaro Herrera <alvherre@xxxxxxxxxxxxxxxxx> writes: >> Maybe we could load it in a more compact form after the heap cleanup >> pass, instead of a plain TID list. > > Hmm ... a non-lossy bitmap would be an interesting alternative. > I think I went with bsearch mainly because I knew I could generate > the TID list already sorted. Somebody should try to measure the > probe time of the tidbitmap code against bsearch ... Incidentally, there was a previous discussion about this a while back. I can't seem to find it in the archives though. -- Gregory Stark EnterpriseDB http://www.enterprisedb.com ---------------------------(end of broadcast)--------------------------- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to majordomo@xxxxxxxxxxxxxx so that your message can get through to the mailing list cleanly
