git.postgresql.org Git - postgresql.git/commit

author	Tom Lane <tgl@sss.pgh.pa.us>
	Sat, 11 Sep 2004 18:28:34 +0000 (18:28 +0000)
committer	Tom Lane <tgl@sss.pgh.pa.us>
	Sat, 11 Sep 2004 18:28:34 +0000 (18:28 +0000)
commit	493f72606b463a75ae4e2ee4e64d829e7f56066d
tree	8645b7d58f6e333f4d10948051be2bd7e38002be	tree
parent	9835944e54ace63b040d2d2e78eaa0b78aca1bed	commit \| diff

Renumber SnapshotNow and the other special snapshot codes so that
((Snapshot) NULL) can no longer be confused with a valid snapshot,
as per my recent suggestion. Define a macro InvalidSnapshot for 0.
Use InvalidSnapshot instead of SnapshotAny as the do-nothing special
case for heap_update and heap_delete crosschecks; this seems a little
cleaner even though the behavior is really the same.

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src/backend/access/heap/heapam.c		diff \| blob \| blame \| history
src/backend/commands/async.c		diff \| blob \| blame \| history
src/backend/executor/execMain.c		diff \| blob \| blame \| history
src/backend/executor/execUtils.c		diff \| blob \| blame \| history
src/include/utils/tqual.h		diff \| blob \| blame \| history