Re: [HACKERS] Novice questions about HeapTupleSatisfies

2003-10-15 Thread Tom Lane
"murphy pope" <[EMAIL PROTECTED]> writes: > Did I get (most or any of) this right? Mostly. A couple of comments: HeapTupleSatisfies can do scankey testing (that is, see whether columns satisfy "col op constant" conditions) in addition to the time-qual checking you are thinking about. Also, the t

[HACKERS] Novice questions about HeapTupleSatisfies

2003-10-15 Thread murphy pope
In backend/access/heap/heapam.c, there are two functions that I've been looking at. The first is heapgettup() and the other is heap_fetch(). I'm guessing that one (heapgettup()) is used for sequential scans and the other (heap_fetch()) is used to retreive a tuple based on an index entry. Is t