Alvaro Herrera <[EMAIL PROTECTED]> writes: > A simple idea would be to add the committed subxact Xids to the > xl_xact_commit and xl_xact_abort structs. However, this will be a > variable length array, and those structs already have variable length > arrays at the end (filenodes to drop). I don't see how would I overlay > that into a C struct.
Just means you have to do some address arithmetic instead of being able to reference the additional data as a struct member. Tedious but hardly difficult. See for instance the handling of "move" data in XLOG_HEAP_MOVE records, or "unused" data in XLOG_HEAP_CLEAN. I'd not recommend emitting additional xlog records unless there's a genuine log-semantics-related reason for doing so. (Thinks about it...) It seems like you'd want to emit a subtrans abort record to carry information about file deletions, but there's no real need to emit subtrans commit records, is there? regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 3: 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