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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-01-29 23:22:59 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-01-29 23:22:59 +0000 |
| commit | e8cd6f14a26bbecd3d8abcf36235a033cb035678 (patch) | |
| tree | 1d525004f3c6720b5ea224882a4fc4f3d3af2623 /src | |
| parent | c120dd263b18adaee01515c9542f583c0ea44074 (diff) | |
| download | postgresql-e8cd6f14a26bbecd3d8abcf36235a033cb035678.tar.gz postgresql-e8cd6f14a26bbecd3d8abcf36235a033cb035678.zip | |
Add comment noting that hashm_procid in a hash index's metapage isn't
actually used for anything.
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/access/hash/hashpage.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/backend/access/hash/hashpage.c b/src/backend/access/hash/hashpage.c index e1cf17b282d..97eb3c379ee 100644 --- a/src/backend/access/hash/hashpage.c +++ b/src/backend/access/hash/hashpage.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/access/hash/hashpage.c,v 1.63 2007/01/05 22:19:22 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/access/hash/hashpage.c,v 1.64 2007/01/29 23:22:59 tgl Exp $ * * NOTES * Postgres hash pages look like ordinary relation pages. The opaque @@ -275,6 +275,11 @@ _hash_metapinit(Relation rel) metap->hashm_bmshift = i + BYTE_TO_BIT; Assert((1 << BMPG_SHIFT(metap)) == (BMPG_MASK(metap) + 1)); + /* + * Label the index with its primary hash support function's OID. This is + * pretty useless for normal operation (in fact, hashm_procid is not used + * anywhere), but it might be handy for forensic purposes so we keep it. + */ metap->hashm_procid = index_getprocid(rel, 1, HASHPROC); /* |