Jan Wieck <[EMAIL PROTECTED]> writes: > Yeah, adding a buffer multiple times to the list of unused buffers > ensures that it later on gets used for multiple contents simultaneously.
Hm. Looking at the patch last night, I was wondering why you had removed all the guard logic from BufTableInsert and BufTableDelete. Was that indeed a bad idea? In particular, the removal of this bit from BufTableDelete /* * Clear the buffer's tag. This doesn't matter for the hash table, * since the buffer is already removed from it, but it ensures that * sequential searches through the buffer table won't think the buffer * is still valid for its old page. */ buf->tag.rnode.relNode = InvalidOid; buf->tag.rnode.tblNode = InvalidOid; worries me quite a lot, because I *know* that was necessary before. Have you really changed the search algorithms to the point where it's not? regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html