Rename wal_log_hintbits to wal_log_hints, per discussion on pgsql-hackers.

Sawada Masahiko

doc/src/sgml/config.sgml

@@ -1957,10 +1957,10 @@ include 'filename'
       </listitem>
      </varlistentry>
 
-     <varlistentry id="guc-wal-log-hintbits" xreflabel="wal_log_hintbits">
-      <term><varname>wal_log_hintbits</varname> (<type>boolean</type>)</term>
+     <varlistentry id="guc-wal-log-hints" xreflabel="wal_log_hints">
+      <term><varname>wal_log_hints</varname> (<type>boolean</type>)</term>
       <indexterm>
-       <primary><varname>wal_log_hintbits</> configuration parameter</primary>
+       <primary><varname>wal_log_hints</> configuration parameter</primary>
       </indexterm>
       <listitem>
        <para>

src/backend/access/heap/visibilitymap.c

@@ -287,7 +287,7 @@ visibilitymap_set(Relation rel, BlockNumber heapBlk, Buffer heapBuf,
 										  cutoff_xid);
 
 				/*
-				 * If data checksums are enabled (or wal_log_hintbits=on), we
+				 * If data checksums are enabled (or wal_log_hints=on), we
 				 * need to protect the heap page from being torn.
 				 */
 				if (XLogHintBitIsNeeded())

src/backend/access/transam/xlog.c

@@ -79,7 +79,7 @@ bool		XLogArchiveMode = false;
 char	   *XLogArchiveCommand = NULL;
 bool		EnableHotStandby = false;
 bool		fullPageWrites = true;
-bool		walLogHintbits = false;
+bool		walLogHints = false;
 bool		log_checkpoints = false;
 int			sync_method = DEFAULT_SYNC_METHOD;
 int			wal_level = WAL_LEVEL_MINIMAL;
@@ -5271,7 +5271,7 @@ BootStrapXLOG(void)
 	ControlFile->max_prepared_xacts = max_prepared_xacts;
 	ControlFile->max_locks_per_xact = max_locks_per_xact;
 	ControlFile->wal_level = wal_level;
-	ControlFile->wal_log_hintbits = walLogHintbits;
+	ControlFile->wal_log_hints = walLogHints;
 	ControlFile->data_checksum_version = bootstrap_data_checksum_version;
 
 	/* some additional ControlFile fields are set in WriteControlFile() */
@@ -9060,7 +9060,7 @@ static void
 XLogReportParameters(void)
 {
 	if (wal_level != ControlFile->wal_level ||
-		walLogHintbits != ControlFile->wal_log_hintbits ||
+		walLogHints != ControlFile->wal_log_hints ||
 		MaxConnections != ControlFile->MaxConnections ||
 		max_worker_processes != ControlFile->max_worker_processes ||
 		max_prepared_xacts != ControlFile->max_prepared_xacts ||
@@ -9083,7 +9083,7 @@ XLogReportParameters(void)
 			xlrec.max_prepared_xacts = max_prepared_xacts;
 			xlrec.max_locks_per_xact = max_locks_per_xact;
 			xlrec.wal_level = wal_level;
-			xlrec.wal_log_hintbits = walLogHintbits;
+			xlrec.wal_log_hints = walLogHints;
 
 			rdata.buffer = InvalidBuffer;
 			rdata.data = (char *) &xlrec;
@@ -9098,7 +9098,7 @@ XLogReportParameters(void)
 		ControlFile->max_prepared_xacts = max_prepared_xacts;
 		ControlFile->max_locks_per_xact = max_locks_per_xact;
 		ControlFile->wal_level = wal_level;
-		ControlFile->wal_log_hintbits = walLogHintbits;
+		ControlFile->wal_log_hints = walLogHints;
 		UpdateControlFile();
 	}
 }
@@ -9485,7 +9485,7 @@ xlog_redo(XLogRecPtr lsn, XLogRecord *record)
 		ControlFile->max_prepared_xacts = xlrec.max_prepared_xacts;
 		ControlFile->max_locks_per_xact = xlrec.max_locks_per_xact;
 		ControlFile->wal_level = xlrec.wal_level;
-		ControlFile->wal_log_hintbits = walLogHintbits;
+		ControlFile->wal_log_hints = walLogHints;
 
 		/*
 		 * Update minRecoveryPoint to ensure that if recovery is aborted, we

src/backend/utils/misc/guc.c

@@ -872,11 +872,11 @@ static struct config_bool ConfigureNamesBool[] =
 	},
 
 	{
-		{"wal_log_hintbits", PGC_POSTMASTER, WAL_SETTINGS,
+		{"wal_log_hints", PGC_POSTMASTER, WAL_SETTINGS,
 			gettext_noop("Writes full pages to WAL when first modified after a checkpoint, even for a non-critical modifications"),
 			NULL
 		},
-		&walLogHintbits,
+		&walLogHints,
 		false,
 		NULL, NULL, NULL
 	},

src/backend/utils/misc/postgresql.conf.sample

@@ -184,7 +184,7 @@
 					#   fsync_writethrough
 					#   open_sync
 #full_page_writes = on			# recover from partial page writes
-#wal_log_hintbits = off			# also do full pages writes of non-critical updates
+#wal_log_hints = off			# also do full pages writes of non-critical updates
 #wal_buffers = -1			# min 32kB, -1 sets based on shared_buffers
 					# (change requires restart)
 #wal_writer_delay = 200ms		# 1-10000 milliseconds

src/bin/pg_controldata/pg_controldata.c

@@ -260,8 +260,8 @@ main(int argc, char *argv[])
 		   ControlFile.backupEndRequired ? _("yes") : _("no"));
 	printf(_("Current wal_level setting:            %s\n"),
 		   wal_level_str(ControlFile.wal_level));
-	printf(_("Current wal_log_hintbits setting:     %s\n"),
-		   ControlFile.wal_log_hintbits ? _("on") : _("off"));
+	printf(_("Current wal_log_hints setting:        %s\n"),
+		   ControlFile.wal_log_hints ? _("on") : _("off"));
 	printf(_("Current max_connections setting:      %d\n"),
 		   ControlFile.MaxConnections);
 	printf(_("Current max_worker_processes setting: %d\n"),

src/bin/pg_resetxlog/pg_resetxlog.c

@@ -525,7 +525,7 @@ GuessControlValues(void)
 	/* minRecoveryPoint, backupStartPoint and backupEndPoint can be left zero */
 
 	ControlFile.wal_level = WAL_LEVEL_MINIMAL;
-	ControlFile.wal_log_hintbits = false;
+	ControlFile.wal_log_hints = false;
 	ControlFile.MaxConnections = 100;
 	ControlFile.max_worker_processes = 8;
 	ControlFile.max_prepared_xacts = 0;
@@ -722,7 +722,7 @@ RewriteControlFile(void)
 	 * anyway at startup.
 	 */
 	ControlFile.wal_level = WAL_LEVEL_MINIMAL;
-	ControlFile.wal_log_hintbits = false;
+	ControlFile.wal_log_hints = false;
 	ControlFile.MaxConnections = 100;
 	ControlFile.max_worker_processes = 8;
 	ControlFile.max_prepared_xacts = 0;

src/include/access/xlog.h

@@ -189,7 +189,7 @@ extern bool XLogArchiveMode;
 extern char *XLogArchiveCommand;
 extern bool EnableHotStandby;
 extern bool fullPageWrites;
-extern bool walLogHintbits;
+extern bool walLogHints;
 extern bool log_checkpoints;
 extern int	num_xloginsert_slots;
 
@@ -219,9 +219,9 @@ extern int	wal_level;
  * we have to protect them against torn page writes.  When you only set
  * individual bits on a page, it's still consistent no matter what combination
  * of the bits make it to disk, but the checksum wouldn't match.  Also WAL-log
- * them if forced by wal_log_hintbits=on.
+ * them if forced by wal_log_hints=on.
  */
-#define XLogHintBitIsNeeded() (DataChecksumsEnabled() || walLogHintbits)
+#define XLogHintBitIsNeeded() (DataChecksumsEnabled() || walLogHints)
 
 /* Do we need to WAL-log information required only for Hot Standby and logical replication? */
 #define XLogStandbyInfoActive() (wal_level >= WAL_LEVEL_HOT_STANDBY)

src/include/access/xlog_internal.h

@@ -209,7 +209,7 @@ typedef struct xl_parameter_change
 	int			max_prepared_xacts;
 	int			max_locks_per_xact;
 	int			wal_level;
-	bool		wal_log_hintbits;
+	bool		wal_log_hints;
 } xl_parameter_change;
 
 /* logs restore point */

src/include/catalog/pg_control.h

@@ -171,7 +171,7 @@ typedef struct ControlFileData
 	 * or hot standby.
 	 */
 	int			wal_level;
-	bool		wal_log_hintbits;
+	bool		wal_log_hints;
 	int			MaxConnections;
 	int			max_worker_processes;
 	int			max_prepared_xacts;