A few trivial code cleanups motivated by reading warnings generated

by a recent HP C compiler.  Mostly, get rid of useless local variables
that are assigned to but never used.

src/backend/access/gist/gist.c

@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/gist/gist.c,v 1.126 2005/09/22 20:44:36 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/gist/gist.c,v 1.127 2005/10/18 01:06:22 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -321,14 +321,12 @@ gistplacetopage(GISTInsertState *state, GISTSTATE *giststate)
 		/* no space for insertion */
 		IndexTuple *itvec,
 				   *newitup;
-		int			tlen,
-					olen;
+		int			tlen;
 		SplitedPageLayout *dist = NULL,
 				   *ptr;
 
 		is_splitted = true;
 		itvec = gistextractbuffer(state->stack->buffer, &tlen);
-		olen = tlen;
 		itvec = gistjoinvector(itvec, &tlen, state->itup, state->ituplen);
 		newitup = gistSplit(state->r, state->stack->buffer, itvec, &tlen, &dist, giststate);
 

src/backend/access/hash/hashinsert.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/hash/hashinsert.c,v 1.38 2005/10/15 02:49:08 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/hash/hashinsert.c,v 1.39 2005/10/18 01:06:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -37,8 +37,6 @@ _hash_doinsert(Relation rel, HashItem hitem)
 	Buffer		metabuf;
 	HashMetaPage metap;
 	IndexTuple	itup;
-	BlockNumber itup_blkno;
-	OffsetNumber itup_off;
 	BlockNumber blkno;
 	Page		page;
 	HashPageOpaque pageopaque;
@@ -159,8 +157,7 @@ _hash_doinsert(Relation rel, HashItem hitem)
 	}
 
 	/* found page with enough space, so add the item here */
-	itup_off = _hash_pgaddtup(rel, buf, itemsz, hitem);
-	itup_blkno = BufferGetBlockNumber(buf);
+	(void) _hash_pgaddtup(rel, buf, itemsz, hitem);
 
 	/* write and release the modified page */
 	_hash_wrtbuf(rel, buf);

src/backend/access/hash/hashsearch.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/hash/hashsearch.c,v 1.40 2005/10/15 02:49:08 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/hash/hashsearch.c,v 1.41 2005/10/18 01:06:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -247,7 +247,6 @@ _hash_step(IndexScanDesc scan, Buffer *bufP, ScanDirection dir)
 	HashPageOpaque opaque;
 	OffsetNumber maxoff;
 	OffsetNumber offnum;
-	Bucket		bucket;
 	BlockNumber blkno;
 	HashItem	hitem;
 	IndexTuple	itup;
@@ -258,7 +257,6 @@ _hash_step(IndexScanDesc scan, Buffer *bufP, ScanDirection dir)
 	page = BufferGetPage(buf);
 	_hash_checkpage(rel, page, LH_BUCKET_PAGE | LH_OVERFLOW_PAGE);
 	opaque = (HashPageOpaque) PageGetSpecialPointer(page);
-	bucket = opaque->hasho_bucket;
 
 	/*
 	 * If _hash_step is called from _hash_first, current will not be valid, so
@@ -274,8 +272,8 @@ _hash_step(IndexScanDesc scan, Buffer *bufP, ScanDirection dir)
 	/*
 	 * 'offnum' now points to the last tuple we have seen (if any).
 	 *
-	 * continue to step through tuples until: 1) we get to the end of the bucket
-	 * chain or 2) we find a valid tuple.
+	 * continue to step through tuples until: 1) we get to the end of the
+	 * bucket chain or 2) we find a valid tuple.
 	 */
 	do
 	{

src/backend/access/nbtree/nbtsearch.c

@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/nbtree/nbtsearch.c,v 1.95 2005/10/15 02:49:09 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/nbtree/nbtsearch.c,v 1.96 2005/10/18 01:06:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -225,7 +225,6 @@ _bt_binsrch(Relation rel,
 			ScanKey scankey,
 			bool nextkey)
 {
-	TupleDesc	itupdesc;
 	Page		page;
 	BTPageOpaque opaque;
 	OffsetNumber low,
@@ -233,7 +232,6 @@ _bt_binsrch(Relation rel,
 	int32		result,
 				cmpval;
 
-	itupdesc = RelationGetDescr(rel);
 	page = BufferGetPage(buf);
 	opaque = (BTPageOpaque) PageGetSpecialPointer(page);
 

src/backend/access/nbtree/nbtutils.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/nbtree/nbtutils.c,v 1.64 2005/10/15 02:49:09 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/nbtree/nbtutils.c,v 1.65 2005/10/18 01:06:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -79,11 +79,9 @@ ScanKey
 _bt_mkscankey_nodata(Relation rel)
 {
 	ScanKey		skey;
-	TupleDesc	itupdesc;
 	int			natts;
 	int			i;
 
-	itupdesc = RelationGetDescr(rel);
 	natts = RelationGetNumberOfAttributes(rel);
 
 	skey = (ScanKey) palloc(natts * sizeof(ScanKeyData));

src/backend/access/nbtree/nbtxlog.c

@@ -8,7 +8,7 @@
  * Portions Copyright (c) 1994, Regents of the University of California
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/nbtree/nbtxlog.c,v 1.23 2005/10/15 02:49:09 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/nbtree/nbtxlog.c,v 1.24 2005/10/18 01:06:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -156,7 +156,6 @@ btree_xlog_insert(bool isleaf, bool ismeta,
 	Relation	reln;
 	Buffer		buffer;
 	Page		page;
-	BTPageOpaque pageop;
 	char	   *datapos;
 	int			datalen;
 	xl_btree_metadata md;
@@ -187,7 +186,6 @@ btree_xlog_insert(bool isleaf, bool ismeta,
 		page = (Page) BufferGetPage(buffer);
 		if (PageIsNew((PageHeader) page))
 			elog(PANIC, "btree_insert_redo: uninitialized page");
-		pageop = (BTPageOpaque) PageGetSpecialPointer(page);
 
 		if (XLByteLE(lsn, PageGetLSN(page)))
 		{

src/backend/catalog/heap.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/catalog/heap.c,v 1.291 2005/10/15 02:49:12 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/catalog/heap.c,v 1.292 2005/10/18 01:06:23 tgl Exp $
  *
  *
  * INTERFACE ROUTINES
@@ -1452,7 +1452,6 @@ AddRelationRawConstraints(Relation rel,
 	TupleDesc	tupleDesc;
 	TupleConstr *oldconstr;
 	int			numoldchecks;
-	ConstrCheck *oldchecks;
 	ParseState *pstate;
 	RangeTblEntry *rte;
 	int			numchecks;
@@ -1467,15 +1466,9 @@ AddRelationRawConstraints(Relation rel,
 	tupleDesc = RelationGetDescr(rel);
 	oldconstr = tupleDesc->constr;
 	if (oldconstr)
-	{
 		numoldchecks = oldconstr->num_check;
-		oldchecks = oldconstr->check;
-	}
 	else
-	{
 		numoldchecks = 0;
-		oldchecks = NULL;
-	}
 
 	/*
 	 * Create a dummy ParseState and insert the target relation as its sole

src/backend/catalog/pg_conversion.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/catalog/pg_conversion.c,v 1.27 2005/10/15 02:49:14 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/catalog/pg_conversion.c,v 1.28 2005/10/18 01:06:23 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -174,7 +174,6 @@ void
 RemoveConversionById(Oid conversionOid)
 {
 	Relation	rel;
-	TupleDesc	tupDesc;
 	HeapTuple	tuple;
 	HeapScanDesc scan;
 	ScanKeyData scanKeyData;
@@ -186,7 +185,6 @@ RemoveConversionById(Oid conversionOid)
 
 	/* open pg_conversion */
 	rel = heap_open(ConversionRelationId, RowExclusiveLock);
-	tupDesc = rel->rd_att;
 
 	scan = heap_beginscan(rel, SnapshotNow,
 						  1, &scanKeyData);

src/backend/commands/typecmds.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/commands/typecmds.c,v 1.81 2005/10/15 02:49:16 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/commands/typecmds.c,v 1.82 2005/10/18 01:06:24 tgl Exp $
  *
  * DESCRIPTION
  *	  The "DefineFoo" routines take the parse tree and pick out the
@@ -1335,7 +1335,6 @@ AlterDomainDropConstraint(List *names, const char *constrName, DropBehavior beha
 	Oid			domainoid;
 	HeapTuple	tup;
 	Relation	rel;
-	Form_pg_type typTup;
 	Relation	conrel;
 	SysScanDesc conscan;
 	ScanKeyData key[1];
@@ -1379,8 +1378,6 @@ AlterDomainDropConstraint(List *names, const char *constrName, DropBehavior beha
 	conscan = systable_beginscan(conrel, ConstraintTypidIndexId, true,
 								 SnapshotNow, 1, key);
 
-	typTup = (Form_pg_type) GETSTRUCT(tup);
-
 	/*
 	 * Scan over the result set, removing any matching entries.
 	 */

src/backend/executor/nodeHashjoin.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/executor/nodeHashjoin.c,v 1.74 2005/10/15 02:49:17 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/executor/nodeHashjoin.c,v 1.75 2005/10/18 01:06:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -50,7 +50,6 @@ ExecHashJoin(HashJoinState *node)
 	HashState  *hashNode;
 	List	   *joinqual;
 	List	   *otherqual;
-	ScanDirection dir;
 	TupleTableSlot *inntuple;
 	ExprContext *econtext;
 	ExprDoneCond isDone;
@@ -68,7 +67,6 @@ ExecHashJoin(HashJoinState *node)
 	otherqual = node->js.ps.qual;
 	hashNode = (HashState *) innerPlanState(node);
 	outerNode = outerPlanState(node);
-	dir = estate->es_direction;
 
 	/*
 	 * get information from HashJoin state

src/backend/rewrite/rewriteDefine.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/rewrite/rewriteDefine.c,v 1.106 2005/10/15 02:49:24 momjian Exp $
+ *	  $PostgreSQL: pgsql/src/backend/rewrite/rewriteDefine.c,v 1.107 2005/10/18 01:06:24 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -191,7 +191,6 @@ DefineQueryRewrite(RuleStmt *stmt)
 	Oid			ev_relid;
 	Oid			ruleId;
 	int			event_attno;
-	Oid			event_attype;
 	ListCell   *l;
 	Query	   *query;
 	AclResult	aclresult;
@@ -432,7 +431,6 @@ DefineQueryRewrite(RuleStmt *stmt)
 	 * This rule is allowed - prepare to install it.
 	 */
 	event_attno = -1;
-	event_attype = InvalidOid;
 
 	/*
 	 * We want the rule's table references to be checked as though by the rule