Tom Lane 85d72f0516 Teach heapam code to know the difference between a real seqscan and the ...

pseudo HeapScanDesc created for a bitmap heap scan.  This avoids some useless
overhead during a bitmap scan startup, in particular invoking the syncscan
code.  (We might someday want to do that, but right now it's merely useless
contention for shared memory, to say nothing of possibly pushing useful
entries out of syncscan's small LRU list.)  This also allows elimination of
ugly pgstat_discount_heap_scan() kluge.

2007-06-09 18:49:55 +00:00

..

heapam.c

Teach heapam code to know the difference between a real seqscan and the

2007-06-09 18:49:55 +00:00

hio.c

Rename MaxTupleSize to MaxHeapTupleSize to clarify that it's not meant to

2007-02-05 04:22:18 +00:00

Makefile

Arrange for large sequential scans to synchronize with each other, so that

2007-06-08 18:23:53 +00:00

rewriteheap.c

Move the tuple freezing point in CLUSTER to a point further back in the past,

2007-05-17 15:28:29 +00:00

syncscan.c

Arrange for large sequential scans to synchronize with each other, so that

2007-06-08 18:23:53 +00:00

tuptoaster.c

Support varlena fields with single-byte headers and unaligned storage.

2007-04-06 04:21:44 +00:00