diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2009-07-29 20:56:21 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2009-07-29 20:56:21 +0000 |
| commit | 25d9bf2e3e66ee2e546c5c523d148ecab6ee1dcc (patch) | |
| tree | b0dee0f1d6111fd6658d432ec30e5ddb88adc02f /src/include/access/nbtree.h | |
| parent | 850490579318ff52097eec92ce535357dd0c7a3a (diff) | |
Support deferrable uniqueness constraints.
The current implementation fires an AFTER ROW trigger for each tuple that
looks like it might be non-unique according to the index contents at the
time of insertion. This works well as long as there aren't many conflicts,
but won't scale to massive unique-key reassignments. Improving that case
is a TODO item.
Dean Rasheed
Diffstat (limited to 'src/include/access/nbtree.h')
| -rw-r--r-- | src/include/access/nbtree.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/include/access/nbtree.h b/src/include/access/nbtree.h index 1d3e42d99bc..ed5ec57e47f 100644 --- a/src/include/access/nbtree.h +++ b/src/include/access/nbtree.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2009, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/access/nbtree.h,v 1.124 2009/06/11 14:49:08 momjian Exp $ + * $PostgreSQL: pgsql/src/include/access/nbtree.h,v 1.125 2009/07/29 20:56:19 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -517,8 +517,8 @@ extern Datum btoptions(PG_FUNCTION_ARGS); /* * prototypes for functions in nbtinsert.c */ -extern void _bt_doinsert(Relation rel, IndexTuple itup, - bool index_is_unique, Relation heapRel); +extern bool _bt_doinsert(Relation rel, IndexTuple itup, + IndexUniqueCheck checkUnique, Relation heapRel); extern Buffer _bt_getstackbuf(Relation rel, BTStack stack, int access); extern void _bt_insert_parent(Relation rel, Buffer buf, Buffer rbuf, BTStack stack, bool is_root, bool is_only); |