pgindent run for 9.4

This includes removing tabs after periods in C comments, which was
applied to back branches, so this change should not effect backpatching.

src/backend/access/spgist/spgdoinsert.c

@@ -25,7 +25,7 @@
 /*
  * SPPageDesc tracks all info about a page we are inserting into.  In some
  * situations it actually identifies a tuple, or even a specific node within
- * an inner tuple.	But any of the fields can be invalid.  If the buffer
+ * an inner tuple.  But any of the fields can be invalid.  If the buffer
  * field is valid, it implies we hold pin and exclusive lock on that buffer.
  * page pointer should be valid exactly when buffer is.
  */
@@ -249,7 +249,7 @@ addLeafTuple(Relation index, SpGistState *state, SpGistLeafTuple leafTuple,
 	else
 	{
 		/*
-		 * Tuple must be inserted into existing chain.	We mustn't change the
+		 * Tuple must be inserted into existing chain.  We mustn't change the
 		 * chain's head address, but we don't need to chase the entire chain
 		 * to put the tuple at the end; we can insert it second.
 		 *
@@ -814,7 +814,7 @@ doPickSplit(Relation index, SpGistState *state,
 	 * We may not actually insert new tuple because another picksplit may be
 	 * necessary due to too large value, but we will try to allocate enough
 	 * space to include it; and in any case it has to be included in the input
-	 * for the picksplit function.	So don't increment nToInsert yet.
+	 * for the picksplit function.  So don't increment nToInsert yet.
 	 */
 	in.datums[in.nTuples] = SGLTDATUM(newLeafTuple, state);
 	heapPtrs[in.nTuples] = newLeafTuple->heapPtr;
@@ -872,7 +872,7 @@ doPickSplit(Relation index, SpGistState *state,
 	/*
 	 * Check to see if the picksplit function failed to separate the values,
 	 * ie, it put them all into the same child node.  If so, select allTheSame
-	 * mode and create a random split instead.	See comments for
+	 * mode and create a random split instead.  See comments for
 	 * checkAllTheSame as to why we need to know if the new leaf tuples could
 	 * fit on one page.
 	 */
@@ -1037,7 +1037,7 @@ doPickSplit(Relation index, SpGistState *state,
 										&xlrec.initDest);
 
 		/*
-		 * Attempt to assign node groups to the two pages.	We might fail to
+		 * Attempt to assign node groups to the two pages.  We might fail to
 		 * do so, even if totalLeafSizes is less than the available space,
 		 * because we can't split a group across pages.
 		 */
@@ -1917,7 +1917,7 @@ spgdoinsert(Relation index, SpGistState *state,
 		if (current.blkno == InvalidBlockNumber)
 		{
 			/*
-			 * Create a leaf page.	If leafSize is too large to fit on a page,
+			 * Create a leaf page.  If leafSize is too large to fit on a page,
 			 * we won't actually use the page yet, but it simplifies the API
 			 * for doPickSplit to always have a leaf page at hand; so just
 			 * quietly limit our request to a page size.
@@ -2120,7 +2120,7 @@ spgdoinsert(Relation index, SpGistState *state,
 									 out.result.addNode.nodeLabel);
 
 					/*
-					 * Retry insertion into the enlarged node.	We assume that
+					 * Retry insertion into the enlarged node.  We assume that
 					 * we'll get a MatchNode result this time.
 					 */
 					goto process_inner_tuple;

src/backend/access/spgist/spginsert.c

@@ -163,7 +163,7 @@ spgbuildempty(PG_FUNCTION_ARGS)
 	page = (Page) palloc(BLCKSZ);
 	SpGistInitMetapage(page);
 
-	/* Write the page.	If archiving/streaming, XLOG it. */
+	/* Write the page.  If archiving/streaming, XLOG it. */
 	PageSetChecksumInplace(page, SPGIST_METAPAGE_BLKNO);
 	smgrwrite(index->rd_smgr, INIT_FORKNUM, SPGIST_METAPAGE_BLKNO,
 			  (char *) page, true);
@@ -232,7 +232,7 @@ spginsert(PG_FUNCTION_ARGS)
 	/*
 	 * We might have to repeat spgdoinsert() multiple times, if conflicts
 	 * occur with concurrent insertions.  If so, reset the insertCtx each time
-	 * to avoid cumulative memory consumption.	That means we also have to
+	 * to avoid cumulative memory consumption.  That means we also have to
 	 * redo initSpGistState(), but it's cheap enough not to matter.
 	 */
 	while (!spgdoinsert(index, &spgstate, ht_ctid, *values, *isnull))

src/backend/access/spgist/spgscan.c

@@ -103,7 +103,7 @@ resetSpGistScanOpaque(SpGistScanOpaque so)
  * Sets searchNulls, searchNonNulls, numberOfKeys, keyData fields of *so.
  *
  * The point here is to eliminate null-related considerations from what the
- * opclass consistent functions need to deal with.	We assume all SPGiST-
+ * opclass consistent functions need to deal with.  We assume all SPGiST-
  * indexable operators are strict, so any null RHS value makes the scan
  * condition unsatisfiable.  We also pull out any IS NULL/IS NOT NULL
  * conditions; their effect is reflected into searchNulls/searchNonNulls.
@@ -600,7 +600,7 @@ storeGettuple(SpGistScanOpaque so, ItemPointer heapPtr,
 	if (so->want_itup)
 	{
 		/*
-		 * Reconstruct desired IndexTuple.	We have to copy the datum out of
+		 * Reconstruct desired IndexTuple.  We have to copy the datum out of
 		 * the temp context anyway, so we may as well create the tuple here.
 		 */
 		so->indexTups[so->nPtrs] = index_form_tuple(so->indexTupDesc,

src/backend/access/spgist/spgtextproc.c

@@ -26,11 +26,11 @@
  * In the worst case, an inner tuple in a text radix tree could have as many
  * as 256 nodes (one for each possible byte value).  Each node can take 16
  * bytes on MAXALIGN=8 machines.  The inner tuple must fit on an index page
- * of size BLCKSZ.	Rather than assuming we know the exact amount of overhead
+ * of size BLCKSZ.  Rather than assuming we know the exact amount of overhead
  * imposed by page headers, tuple headers, etc, we leave 100 bytes for that
  * (the actual overhead should be no more than 56 bytes at this writing, so
  * there is slop in this number).  So we can safely create prefixes up to
- * BLCKSZ - 256 * 16 - 100 bytes long.	Unfortunately, because 256 * 16 is
+ * BLCKSZ - 256 * 16 - 100 bytes long.  Unfortunately, because 256 * 16 is
  * already 4K, there is no safe prefix length when BLCKSZ is less than 8K;
  * it is always possible to get "SPGiST inner tuple size exceeds maximum"
  * if there are too many distinct next-byte values at a given place in the
@@ -327,7 +327,7 @@ spg_text_picksplit(PG_FUNCTION_ARGS)
 	}
 
 	/*
-	 * Sort by label bytes so that we can group the values into nodes.	This
+	 * Sort by label bytes so that we can group the values into nodes.  This
 	 * also ensures that the nodes are ordered by label value, allowing the
 	 * use of binary search in searchChar.
 	 */
@@ -377,7 +377,7 @@ spg_text_inner_consistent(PG_FUNCTION_ARGS)
 
 	/*
 	 * Reconstruct values represented at this tuple, including parent data,
-	 * prefix of this tuple if any, and the node label if any.	in->level
+	 * prefix of this tuple if any, and the node label if any.  in->level
 	 * should be the length of the previously reconstructed value, and the
 	 * number of bytes added here is prefixSize or prefixSize + 1.
 	 *

src/backend/access/spgist/spgutils.c

@@ -235,7 +235,7 @@ SpGistUpdateMetaPage(Relation index)
  *
  * When requesting an inner page, if we get one with the wrong parity,
  * we just release the buffer and try again.  We will get a different page
- * because GetFreeIndexPage will have marked the page used in FSM.	The page
+ * because GetFreeIndexPage will have marked the page used in FSM.  The page
  * is entered in our local lastUsedPages cache, so there's some hope of
  * making use of it later in this session, but otherwise we rely on VACUUM
  * to eventually re-enter the page in FSM, making it available for recycling.
@@ -245,7 +245,7 @@ SpGistUpdateMetaPage(Relation index)
  *
  * When we return a buffer to the caller, the page is *not* entered into
  * the lastUsedPages cache; we expect the caller will do so after it's taken
- * whatever space it will use.	This is because after the caller has used up
+ * whatever space it will use.  This is because after the caller has used up
  * some space, the page might have less space than whatever was cached already
  * so we'd rather not trash the old cache entry.
  */
@@ -317,7 +317,7 @@ SpGistGetBuffer(Relation index, int flags, int needSpace, bool *isNew)
 
 	/*
 	 * If possible, increase the space request to include relation's
-	 * fillfactor.	This ensures that when we add unrelated tuples to a page,
+	 * fillfactor.  This ensures that when we add unrelated tuples to a page,
 	 * we try to keep 100-fillfactor% available for adding tuples that are
 	 * related to the ones already on it.  But fillfactor mustn't cause an
 	 * error for requests that would otherwise be legal.

src/backend/access/spgist/spgvacuum.c

@@ -211,7 +211,7 @@ vacuumLeafPage(spgBulkDeleteState *bds, Relation index, Buffer buffer,
 	 * Figure out exactly what we have to do.  We do this separately from
 	 * actually modifying the page, mainly so that we have a representation
 	 * that can be dumped into WAL and then the replay code can do exactly
-	 * the same thing.	The output of this step consists of six arrays
+	 * the same thing.  The output of this step consists of six arrays
 	 * describing four kinds of operations, to be performed in this order:
 	 *
 	 * toDead[]: tuple numbers to be replaced with DEAD tuples
@@ -287,7 +287,7 @@ vacuumLeafPage(spgBulkDeleteState *bds, Relation index, Buffer buffer,
 			else
 			{
 				/*
-				 * Second or later live tuple.	Arrange to re-chain it to the
+				 * Second or later live tuple.  Arrange to re-chain it to the
 				 * previous live one, if there was a gap.
 				 */
 				if (interveningDeletable)

src/backend/access/spgist/spgxlog.c

@@ -41,7 +41,7 @@ fillFakeState(SpGistState *state, spgxlogState stateSrc)
 }
 
 /*
- * Add a leaf tuple, or replace an existing placeholder tuple.	This is used
+ * Add a leaf tuple, or replace an existing placeholder tuple.  This is used
  * to replay SpGistPageAddNewItem() operations.  If the offset points at an
  * existing tuple, it had better be a placeholder tuple.
  */
@@ -462,7 +462,7 @@ spgRedoAddNode(XLogRecPtr lsn, XLogRecord *record)
 		}
 
 		/*
-		 * Update parent downlink.	Since parent could be in either of the
+		 * Update parent downlink.  Since parent could be in either of the
 		 * previous two buffers, it's a bit tricky to determine which BKP bit
 		 * applies.
 		 */
@@ -799,7 +799,7 @@ spgRedoPickSplit(XLogRecPtr lsn, XLogRecord *record)
 	bbi++;
 
 	/*
-	 * Now we can release the leaf-page locks.	It's okay to do this before
+	 * Now we can release the leaf-page locks.  It's okay to do this before
 	 * updating the parent downlink.
 	 */
 	if (BufferIsValid(srcBuffer))