diff options
Diffstat (limited to 'src/backend/executor/nodeHash.c')
| -rw-r--r-- | src/backend/executor/nodeHash.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/src/backend/executor/nodeHash.c b/src/backend/executor/nodeHash.c index b5cabd81a4..b22295d35f 100644 --- a/src/backend/executor/nodeHash.c +++ b/src/backend/executor/nodeHash.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/executor/nodeHash.c,v 1.114 2007/06/07 19:19:57 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/executor/nodeHash.c,v 1.115 2007/11/15 21:14:34 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -271,8 +271,8 @@ ExecHashTableCreate(Hash *node, List *hashOperators) hashtable->spaceAllowed = work_mem * 1024L; /* - * Get info about the hash functions to be used for each hash key. - * Also remember whether the join operators are strict. + * Get info about the hash functions to be used for each hash key. Also + * remember whether the join operators are strict. */ nkeys = list_length(hashOperators); hashtable->outer_hashfunctions = @@ -423,8 +423,8 @@ ExecChooseHashTableSize(double ntuples, int tupwidth, /* * Both nbuckets and nbatch must be powers of 2 to make - * ExecHashGetBucketAndBatch fast. We already fixed nbatch; now inflate - * nbuckets to the next larger power of 2. We also force nbuckets to not + * ExecHashGetBucketAndBatch fast. We already fixed nbatch; now inflate + * nbuckets to the next larger power of 2. We also force nbuckets to not * be real small, by starting the search at 2^10. */ i = 10; @@ -718,22 +718,22 @@ ExecHashGetHashValue(HashJoinTable hashtable, /* * If the attribute is NULL, and the join operator is strict, then * this tuple cannot pass the join qual so we can reject it - * immediately (unless we're scanning the outside of an outer join, - * in which case we must not reject it). Otherwise we act like the + * immediately (unless we're scanning the outside of an outer join, in + * which case we must not reject it). Otherwise we act like the * hashcode of NULL is zero (this will support operators that act like * IS NOT DISTINCT, though not any more-random behavior). We treat * the hash support function as strict even if the operator is not. * * Note: currently, all hashjoinable operators must be strict since - * the hash index AM assumes that. However, it takes so little - * extra code here to allow non-strict that we may as well do it. + * the hash index AM assumes that. However, it takes so little extra + * code here to allow non-strict that we may as well do it. */ if (isNull) { if (hashtable->hashStrict[i] && !keep_nulls) { MemoryContextSwitchTo(oldContext); - return false; /* cannot match */ + return false; /* cannot match */ } /* else, leave hashkey unmodified, equivalent to hashcode 0 */ } |