diff options
Diffstat (limited to 'src/backend/access/hash/hashpage.c')
| -rw-r--r-- | src/backend/access/hash/hashpage.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/src/backend/access/hash/hashpage.c b/src/backend/access/hash/hashpage.c index f47d213298..bd1f930e06 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 1.79 2009/01/01 17:23:35 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/access/hash/hashpage.c,v 1.80 2009/06/11 14:48:53 momjian Exp $ * * NOTES * Postgres hash pages look like ordinary relation pages. The opaque @@ -361,8 +361,8 @@ _hash_metapinit(Relation rel, double num_tuples) /* * Choose the number of initial bucket pages to match the fill factor * given the estimated number of tuples. We round up the result to the - * next power of 2, however, and always force at least 2 bucket pages. - * The upper limit is determined by considerations explained in + * next power of 2, however, and always force at least 2 bucket pages. The + * upper limit is determined by considerations explained in * _hash_expandtable(). */ dnumbuckets = num_tuples / ffactor; @@ -421,8 +421,8 @@ _hash_metapinit(Relation rel, double num_tuples) /* * We initialize the index with N buckets, 0 .. N-1, occupying physical - * blocks 1 to N. The first freespace bitmap page is in block N+1. - * Since N is a power of 2, we can set the masks this way: + * blocks 1 to N. The first freespace bitmap page is in block N+1. Since + * N is a power of 2, we can set the masks this way: */ metap->hashm_maxbucket = metap->hashm_lowmask = num_buckets - 1; metap->hashm_highmask = (num_buckets << 1) - 1; @@ -438,8 +438,8 @@ _hash_metapinit(Relation rel, double num_tuples) /* * Release buffer lock on the metapage while we initialize buckets. * Otherwise, we'll be in interrupt holdoff and the CHECK_FOR_INTERRUPTS - * won't accomplish anything. It's a bad idea to hold buffer locks - * for long intervals in any case, since that can block the bgwriter. + * won't accomplish anything. It's a bad idea to hold buffer locks for + * long intervals in any case, since that can block the bgwriter. */ _hash_chgbufaccess(rel, metabuf, HASH_WRITE, HASH_NOLOCK); @@ -552,8 +552,8 @@ _hash_expandtable(Relation rel, Buffer metabuf) * _hash_alloc_buckets() would fail, but if we supported buckets smaller * than a disk block then this would be an independent constraint. * - * If you change this, see also the maximum initial number of buckets - * in _hash_metapinit(). + * If you change this, see also the maximum initial number of buckets in + * _hash_metapinit(). */ if (metap->hashm_maxbucket >= (uint32) 0x7FFFFFFE) goto fail; @@ -839,8 +839,8 @@ _hash_splitbucket(Relation rel, } /* - * Fetch the item's hash key (conveniently stored in the item) - * and determine which bucket it now belongs in. + * Fetch the item's hash key (conveniently stored in the item) and + * determine which bucket it now belongs in. */ itup = (IndexTuple) PageGetItem(opage, PageGetItemId(opage, ooffnum)); bucket = _hash_hashkey2bucket(_hash_get_indextuple_hashkey(itup), |