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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-04-09 22:04:08 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-04-09 22:04:08 +0000 |
| commit | 56218fbc487991ed98358cd8016dc5c4615bed96 (patch) | |
| tree | 0840591dffb49c556f0943e1c91b0628c18b4ced /src/backend/access/gist/gistutil.c | |
| parent | 485d9ca96ff0ef6ab1e424a4ded3eeb53a9cf3df (diff) | |
| download | postgresql-56218fbc487991ed98358cd8016dc5c4615bed96.tar.gz postgresql-56218fbc487991ed98358cd8016dc5c4615bed96.zip | |
Minor tweaking of index special-space definitions so that the various
index types can be reliably distinguished by examining the special space
on an index page. Per my earlier proposal, plus the realization that
there's no need for btree's vacuum cycle ID to cycle through every possible
16-bit value. Restricting its range a little costs nearly nothing and
eliminates the possibility of collisions.
Memo to self: remember to make bitmap indexes play along with this scheme,
assuming that patch ever gets accepted.
Diffstat (limited to 'src/backend/access/gist/gistutil.c')
| -rw-r--r-- | src/backend/access/gist/gistutil.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/backend/access/gist/gistutil.c b/src/backend/access/gist/gistutil.c index 0c10fc49cc7..c09e9249ea3 100644 --- a/src/backend/access/gist/gistutil.c +++ b/src/backend/access/gist/gistutil.c @@ -8,7 +8,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/access/gist/gistutil.c,v 1.21 2007/01/05 22:19:22 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/access/gist/gistutil.c,v 1.22 2007/04/09 22:03:57 tgl Exp $ *------------------------------------------------------------------------- */ #include "postgres.h" @@ -559,10 +559,11 @@ GISTInitBuffer(Buffer b, uint32 f) PageInit(page, pageSize, sizeof(GISTPageOpaqueData)); opaque = GistPageGetOpaque(page); - opaque->flags = f; - opaque->rightlink = InvalidBlockNumber; /* page was already zeroed by PageInit, so this is not needed: */ /* memset(&(opaque->nsn), 0, sizeof(GistNSN)); */ + opaque->rightlink = InvalidBlockNumber; + opaque->flags = f; + opaque->gist_page_id = GIST_PAGE_ID; } /* |