Fix various typos and spelling mistakes in code comments

Author: Justin Pryzby
Discussion: https://postgr.es/m/20220411020336.GB26620@telsasoft.com

src/backend/access/brin/brin_minmax_multi.c

@@ -310,7 +310,7 @@ AssertCheckRanges(Ranges *ranges, FmgrInfo *cmpFn, Oid colloid)
 	 */
 	AssertArrayOrder(cmpFn, colloid, ranges->values, 2 * ranges->nranges);
 
-	/* then the single-point ranges (with nvalues boundar values ) */
+	/* then the single-point ranges (with nvalues boundary values ) */
 	AssertArrayOrder(cmpFn, colloid, &ranges->values[2 * ranges->nranges],
 					 ranges->nsorted);
 

src/backend/access/heap/heapam.c

@@ -1470,7 +1470,7 @@ heap_getnextslot_tidrange(TableScanDesc sscan, ScanDirection direction,
 		 * heap_set_tidrange will have used heap_setscanlimits to limit the
 		 * range of pages we scan to only ones that can contain the TID range
 		 * we're scanning for.  Here we must filter out any tuples from these
-		 * pages that are outwith that range.
+		 * pages that are outside of that range.
 		 */
 		if (ItemPointerCompare(&scan->rs_ctup.t_self, mintid) < 0)
 		{

src/backend/access/transam/xlogreader.c

@@ -300,7 +300,7 @@ XLogReleasePreviousRecord(XLogReaderState *state)
 	/* Release the space. */
 	if (unlikely(record->oversized))
 	{
-		/* It's not in the the decode buffer, so free it to release space. */
+		/* It's not in the decode buffer, so free it to release space. */
 		pfree(record);
 	}
 	else

src/backend/access/transam/xlogrecovery.c

@@ -2975,7 +2975,7 @@ ReadRecord(XLogPrefetcher *xlogprefetcher, int emode,
 			/*
 			 * When not in standby mode we find that WAL ends in an incomplete
 			 * record, keep track of that record.  After recovery is done,
-			 * we'll write a record to indicate downstream WAL readers that
+			 * we'll write a record to indicate to downstream WAL readers that
 			 * that portion is to be ignored.
 			 */
 			if (!StandbyMode &&

src/backend/commands/dbcommands.c

@@ -386,7 +386,7 @@ ScanSourceDatabasePgClassPage(Page page, Buffer buf, Oid tbid, Oid dbid,
  * needs to be copied from the source database to the destination database,
  * and if so, construct a CreateDBRelInfo for it.
  *
- * Visbility checks are handled by the caller, so our job here is just
+ * Visibility checks are handled by the caller, so our job here is just
  * to assess the data stored in the tuple.
  */
 CreateDBRelInfo *

src/backend/commands/vacuumparallel.c

@@ -12,7 +12,7 @@
  * the memory space for storing dead items allocated in the DSM segment.  We
  * launch parallel worker processes at the start of parallel index
  * bulk-deletion and index cleanup and once all indexes are processed, the
- * parallel worker processes exit.  Each time we process indexes parallelly,
+ * parallel worker processes exit.  Each time we process indexes in parallel,
  * the parallel context is re-initialized so that the same DSM can be used for
  * multiple passes of index bulk-deletion and index cleanup.
  *

src/backend/executor/nodeMergeAppend.c

@@ -100,7 +100,7 @@ ExecInitMergeAppend(MergeAppend *node, EState *estate, int eflags)
 
 		/*
 		 * When no run-time pruning is required and there's at least one
-		 * subplan, we can fill as_valid_subplans immediately, preventing
+		 * subplan, we can fill ms_valid_subplans immediately, preventing
 		 * later calls to ExecFindMatchingSubPlans.
 		 */
 		if (!prunestate->do_exec_prune && nplans > 0)

src/backend/optimizer/path/costsize.c

@@ -1976,8 +1976,8 @@ compute_cpu_sort_cost(PlannerInfo *root, List *pathkeys, int nPresortedKeys,
 		 * by calling estimate_num_groups_incremental(), which estimates the
 		 * group size for "new" pathkeys.
 		 *
-		 * Note: estimate_num_groups_incremntal does not handle fake Vars, so use
-		 * a default estimate otherwise.
+		 * Note: estimate_num_groups_incremental does not handle fake Vars, so
+		 * use a default estimate otherwise.
 		 */
 		if (!has_fake_var)
 			nGroups = estimate_num_groups_incremental(root, pathkeyExprs,
@@ -6471,7 +6471,7 @@ compute_bitmap_pages(PlannerInfo *root, RelOptInfo *baserel, Path *bitmapqual,
 		exact_pages = heap_pages - lossy_pages;
 
 		/*
-		 * If there are lossy pages then recompute the  number of tuples
+		 * If there are lossy pages then recompute the number of tuples
 		 * processed by the bitmap heap node.  We assume here that the chance
 		 * of a given tuple coming from an exact page is the same as the
 		 * chance that a given page is exact.  This might not be true, but

src/backend/optimizer/path/pathkeys.c

@@ -2383,16 +2383,16 @@ pathkeys_useful_for_ordering(PlannerInfo *root, List *pathkeys)
  *		Count the number of pathkeys that are useful for grouping (instead of
  *		explicit sort)
  *
- * Group pathkeys could be reordered to benefit from the odering. The ordering
- * may not be "complete" and may require incremental sort, but that's fine. So
- * we simply count prefix pathkeys with a matching group key, and stop once we
- * find the first pathkey without a match.
+ * Group pathkeys could be reordered to benefit from the ordering. The
+ * ordering may not be "complete" and may require incremental sort, but that's
+ * fine. So we simply count prefix pathkeys with a matching group key, and
+ * stop once we find the first pathkey without a match.
  *
  * So e.g. with pathkeys (a,b,c) and group keys (a,b,e) this determines (a,b)
  * pathkeys are useful for grouping, and we might do incremental sort to get
  * path ordered by (a,b,e).
  *
- * This logic is necessary to retain paths with ordeding not matching grouping
+ * This logic is necessary to retain paths with ordering not matching grouping
  * keys directly, without the reordering.
  *
  * Returns the length of pathkey prefix with matching group keys.

src/backend/parser/parse_expr.c

@@ -3507,7 +3507,7 @@ transformJsonOutput(ParseState *pstate, const JsonOutput *output,
 }
 
 /*
- * Transform JSON output clause of JSON contructor functions.
+ * Transform JSON output clause of JSON constructor functions.
  *
  * Derive RETURNING type, if not specified, from argument types.
  */

src/backend/replication/basebackup_server.c

@@ -195,9 +195,9 @@ bbsink_server_end_archive(bbsink *sink)
 
 	/*
 	 * We intentionally don't use data_sync_elevel here, because the server
-	 * shouldn't PANIC just because we can't guarantee the the backup has been
-	 * written down to disk. Running recovery won't fix anything in this case
-	 * anyway.
+	 * shouldn't PANIC just because we can't guarantee that the backup has
+	 * been written down to disk. Running recovery won't fix anything in this
+	 * case anyway.
 	 */
 	if (FileSync(mysink->file, WAIT_EVENT_BASEBACKUP_SYNC) < 0)
 		ereport(ERROR,

src/backend/replication/logical/reorderbuffer.c

@@ -1876,7 +1876,7 @@ ReorderBufferStreamCommit(ReorderBuffer *rb, ReorderBufferTXN *txn)
  * xid 502 which is not visible to our snapshot.  And when we will try to
  * decode with that catalog tuple, it can lead to a wrong result or a crash.
  * So, it is necessary to detect concurrent aborts to allow streaming of
- * in-progress transactions or decoding of prepared  transactions.
+ * in-progress transactions or decoding of prepared transactions.
  *
  * For detecting the concurrent abort we set CheckXidAlive to the current
  * (sub)transaction's xid for which this change belongs to.  And, during

src/backend/replication/slot.c

@@ -247,7 +247,7 @@ ReplicationSlotValidateName(const char *name, int elevel)
  *     to be enabled only at the slot creation time. If we allow this option
  *     to be changed during decoding then it is quite possible that we skip
  *     prepare first time because this option was not enabled. Now next time
- *     during getting changes, if the two_phase  option is enabled it can skip
+ *     during getting changes, if the two_phase option is enabled it can skip
  *     prepare because by that time start decoding point has been moved. So the
  *     user will only get commit prepared.
  */

src/backend/storage/ipc/procarray.c

@@ -2338,7 +2338,7 @@ GetSnapshotData(Snapshot snapshot)
 
 			/*
 			 * We don't include our own XIDs (if any) in the snapshot. It
-			 * needs to be includeded in the xmin computation, but we did so
+			 * needs to be included in the xmin computation, but we did so
 			 * outside the loop.
 			 */
 			if (pgxactoff == mypgxactoff)

src/backend/tsearch/ts_parse.c

@@ -248,7 +248,7 @@ LexizeExec(LexizeData *ld, ParsedLex **correspondLexem)
 		dict = lookup_ts_dictionary_cache(ld->curDictId);
 
 		/*
-		 * Dictionary ld->curDictId asks  us about following words
+		 * Dictionary ld->curDictId asks us about following words
 		 */
 
 		while (ld->curSub)

src/backend/utils/adt/genfile.c

@@ -59,9 +59,9 @@ convert_and_check_filename(text *arg)
 	canonicalize_path(filename);	/* filename can change length here */
 
 	/*
-	 * Roles with privleges of the 'pg_read_server_files' role are allowed to access
-	 * any files on the server as the PG user, so no need to do any further checks
-	 * here.
+	 * Roles with privileges of the 'pg_read_server_files' role are allowed to
+	 * access any files on the server as the PG user, so no need to do any
+	 * further checks here.
 	 */
 	if (has_privs_of_role(GetUserId(), ROLE_PG_READ_SERVER_FILES))
 		return filename;

src/backend/utils/adt/geo_ops.c

@@ -3878,7 +3878,7 @@ lseg_inside_poly(Point *a, Point *b, POLYGON *poly, int start)
 		Point		p;
 
 		/*
-		 * if X-intersection wasn't found  then check central point of tested
+		 * if X-intersection wasn't found, then check central point of tested
 		 * segment. In opposite case we already check all subsegments
 		 */
 		p.x = float8_div(float8_pl(t.p[0].x, t.p[1].x), 2.0);

src/backend/utils/adt/pg_locale.c

@@ -991,7 +991,7 @@ search_locale_enum(LPWSTR pStr, DWORD dwFlags, LPARAM lparam)
 						test_locale, LOCALE_NAME_MAX_LENGTH))
 	{
 		/*
-		 * If the enumerated locale does not have a hyphen ("en") OR  the
+		 * If the enumerated locale does not have a hyphen ("en") OR the
 		 * lc_message input does not have an underscore ("English"), we only
 		 * need to compare the <Language> tags.
 		 */

src/backend/utils/adt/tsquery.c

@@ -261,7 +261,7 @@ parse_or_operator(TSQueryParserState pstate)
 		/*
 		 * Suppose, we found an operand, but could be a not correct operand.
 		 * So we still treat OR literal as operation with possibly incorrect
-		 * operand and  will not search it as lexeme
+		 * operand and will not search it as lexeme
 		 */
 		if (!t_isspace(ptr))
 			break;

src/backend/utils/cache/relmapper.c

@@ -1044,7 +1044,7 @@ perform_relmap_update(bool shared, const RelMapFile *updates)
 					  (shared ? "global" : DatabasePath));
 
 	/*
-	 * We succesfully wrote the updated file, so it's now safe to rely on the
+	 * We successfully wrote the updated file, so it's now safe to rely on the
 	 * new values in this process, too.
 	 */
 	if (shared)
@@ -1093,7 +1093,7 @@ relmap_redo(XLogReaderState *record)
 		 * an existing database as we do for creating a new database. In
 		 * the latter case, taking the relmap log and sending sinval messages
 		 * is unnecessary, but harmless. If we wanted to avoid it, we could
-		 * add a flag to the WAL record to indicate which opration is being
+		 * add a flag to the WAL record to indicate which operation is being
 		 * performed.
 		 */
 		LWLockAcquire(RelationMappingLock, LW_EXCLUSIVE);

src/backend/utils/error/csvlog.c

@@ -4,7 +4,7 @@
  *	  CSV logging
  *
  * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of Californi
+ * Portions Copyright (c) 1994, Regents of the University of California
  *
  *
  * IDENTIFICATION

src/backend/utils/error/elog.c

@@ -2269,7 +2269,7 @@ write_console(const char *line, int len)
 	/*
 	 * Conversion on non-win32 platforms is not implemented yet. It requires
 	 * non-throw version of pg_do_encoding_conversion(), that converts
-	 * unconvertable characters to '?' without errors.
+	 * unconvertible characters to '?' without errors.
 	 *
 	 * XXX: We have a no-throw version now. It doesn't convert to '?' though.
 	 */

src/backend/utils/error/jsonlog.c

@@ -4,7 +4,7 @@
  *	  JSON logging
  *
  * Portions Copyright (c) 1996-2022, PostgreSQL Global Development Group
- * Portions Copyright (c) 1994, Regents of the University of Californi
+ * Portions Copyright (c) 1994, Regents of the University of California
  *
  *
  * IDENTIFICATION

src/backend/utils/fmgr/funcapi.c

@@ -69,7 +69,7 @@ static TypeFuncClass get_type_func_class(Oid typid, Oid *base_typeid);
  * descriptor coming from expectedDesc, which is the tuple descriptor
  * expected by the caller.  SRF_SINGLE_BLESS can be set to complete the
  * information associated to the tuple descriptor, which is necessary
- * in some cases  where the tuple descriptor comes from a transient
+ * in some cases where the tuple descriptor comes from a transient
  * RECORD datatype.
  */
 void

src/backend/utils/mmgr/generation.c

@@ -27,7 +27,7 @@
  *	context's 'freeblock' field.  If the freeblock field is already occupied
  *	by another free block we simply return the newly empty block to malloc.
  *
- *	This approach to free blocks requires fewer malloc/free calls for truely
+ *	This approach to free blocks requires fewer malloc/free calls for truly
  *	first allocated, first free'd allocation patterns.
  *
  *-------------------------------------------------------------------------