diff options
Diffstat (limited to 'src/backend/access/hash/hashsearch.c')
| -rw-r--r-- | src/backend/access/hash/hashsearch.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/src/backend/access/hash/hashsearch.c b/src/backend/access/hash/hashsearch.c index 76ad5d31849..daaff4adc50 100644 --- a/src/backend/access/hash/hashsearch.c +++ b/src/backend/access/hash/hashsearch.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/access/hash/hashsearch.c,v 1.36 2004/08/29 04:12:18 momjian Exp $ + * $PostgreSQL: pgsql/src/backend/access/hash/hashsearch.c,v 1.37 2004/08/29 05:06:40 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -137,12 +137,13 @@ _hash_first(IndexScanDesc scan, ScanDirection dir) * We do not support hash scans with no index qualification, because * we would have to read the whole index rather than just one bucket. * That creates a whole raft of problems, since we haven't got a - * practical way to lock all the buckets against splits or compactions. + * practical way to lock all the buckets against splits or + * compactions. */ if (scan->numberOfKeys < 1) ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED), - errmsg("hash indexes do not support whole-index scans"))); + errmsg("hash indexes do not support whole-index scans"))); /* * If the constant in the index qual is NULL, assume it cannot match @@ -182,7 +183,8 @@ _hash_first(IndexScanDesc scan, ScanDirection dir) _hash_relbuf(rel, metabuf); /* - * Acquire share lock on target bucket; then we can release split lock. + * Acquire share lock on target bucket; then we can release split + * lock. */ _hash_getlock(rel, blkno, HASH_SHARE); @@ -287,9 +289,8 @@ _hash_step(IndexScanDesc scan, Buffer *bufP, ScanDirection dir) while (offnum > maxoff) { /* - * either this page is empty - * (maxoff == InvalidOffsetNumber) - * or we ran off the end. + * either this page is empty (maxoff == + * InvalidOffsetNumber) or we ran off the end. */ _hash_readnext(rel, &buf, &page, &opaque); if (BufferIsValid(buf)) @@ -315,15 +316,12 @@ _hash_step(IndexScanDesc scan, Buffer *bufP, ScanDirection dir) while (offnum < FirstOffsetNumber) { /* - * either this page is empty - * (offnum == InvalidOffsetNumber) - * or we ran off the end. + * either this page is empty (offnum == + * InvalidOffsetNumber) or we ran off the end. */ _hash_readprev(rel, &buf, &page, &opaque); if (BufferIsValid(buf)) - { maxoff = offnum = PageGetMaxOffsetNumber(page); - } else { /* end of bucket */ |