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| 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/backend/access/gist | |
| parent | 850490579318ff52097eec92ce535357dd0c7a3a (diff) | |
| download | postgresql-25d9bf2e3e66ee2e546c5c523d148ecab6ee1dcc.tar.gz postgresql-25d9bf2e3e66ee2e546c5c523d148ecab6ee1dcc.zip | |
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/backend/access/gist')
| -rw-r--r-- | src/backend/access/gist/gist.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/backend/access/gist/gist.c b/src/backend/access/gist/gist.c index 2742969c6af..ef6febef85c 100644 --- a/src/backend/access/gist/gist.c +++ b/src/backend/access/gist/gist.c @@ -8,7 +8,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/access/gist/gist.c,v 1.156 2009/01/01 17:23:34 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/access/gist/gist.c,v 1.157 2009/07/29 20:56:18 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -225,7 +225,7 @@ gistinsert(PG_FUNCTION_ARGS) #ifdef NOT_USED Relation heapRel = (Relation) PG_GETARG_POINTER(4); - bool checkUnique = PG_GETARG_BOOL(5); + IndexUniqueCheck checkUnique = (IndexUniqueCheck) PG_GETARG_INT32(5); #endif IndexTuple itup; GISTSTATE giststate; @@ -248,7 +248,7 @@ gistinsert(PG_FUNCTION_ARGS) MemoryContextSwitchTo(oldCtx); MemoryContextDelete(insertCtx); - PG_RETURN_BOOL(true); + PG_RETURN_BOOL(false); } |