Rename recently-added pg_stat_activity column from txn_start to xact_start,

for consistency with other column names such as in pg_stat_database.

Author: tglsfdc

src/backend/access/transam/xact.c

@@ -10,7 +10,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.250 2007/09/08 20:31:14 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/access/transam/xact.c,v 1.251 2007/09/11 03:28:05 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -1454,7 +1454,7 @@ StartTransaction(void)
 	 */
 	xactStartTimestamp = stmtStartTimestamp;
 	xactStopTimestamp = 0;
-	pgstat_report_txn_timestamp(xactStartTimestamp);
+	pgstat_report_xact_timestamp(xactStartTimestamp);
 
 	/*
 	 * initialize current transaction state fields
@@ -1648,7 +1648,7 @@ CommitTransaction(void)
 	AtEOXact_ComboCid();
 	AtEOXact_HashTables(true);
 	AtEOXact_PgStat(true);
-	pgstat_report_txn_timestamp(0);
+	pgstat_report_xact_timestamp(0);
 
 	CurrentResourceOwner = NULL;
 	ResourceOwnerDelete(TopTransactionResourceOwner);
@@ -1999,7 +1999,7 @@ AbortTransaction(void)
 	AtEOXact_ComboCid();
 	AtEOXact_HashTables(false);
 	AtEOXact_PgStat(false);
-	pgstat_report_txn_timestamp(0);
+	pgstat_report_xact_timestamp(0);
 
 	/*
 	 * State remains TRANS_ABORT until CleanupTransaction().

src/backend/catalog/system_views.sql

@@ -3,7 +3,7 @@
  *
  * Copyright (c) 1996-2007, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.42 2007/09/05 18:10:47 tgl Exp $
+ * $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.43 2007/09/11 03:28:05 tgl Exp $
  */
 
 CREATE VIEW pg_roles AS 
@@ -347,7 +347,7 @@ CREATE VIEW pg_stat_activity AS
             U.rolname AS usename, 
             pg_stat_get_backend_activity(S.backendid) AS current_query,
             pg_stat_get_backend_waiting(S.backendid) AS waiting,
-            pg_stat_get_backend_txn_start(S.backendid) AS txn_start,
+            pg_stat_get_backend_xact_start(S.backendid) AS xact_start,
             pg_stat_get_backend_activity_start(S.backendid) AS query_start,
             pg_stat_get_backend_start(S.backendid) AS backend_start,
             pg_stat_get_backend_client_addr(S.backendid) AS client_addr,

src/backend/postmaster/pgstat.c

@@ -13,7 +13,7 @@
  *
  *	Copyright (c) 2001-2007, PostgreSQL Global Development Group
  *
- *	$PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.162 2007/08/02 23:39:44 adunstan Exp $
+ *	$PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.163 2007/09/11 03:28:05 tgl Exp $
  * ----------
  */
 #include "postgres.h"
@@ -1854,7 +1854,7 @@ pgstat_bestart(void)
 	beentry->st_procpid = MyProcPid;
 	beentry->st_proc_start_timestamp = proc_start_timestamp;
 	beentry->st_activity_start_timestamp = 0;
-	beentry->st_txn_start_timestamp = 0;
+	beentry->st_xact_start_timestamp = 0;
 	beentry->st_databaseid = MyDatabaseId;
 	beentry->st_userid = userid;
 	beentry->st_clientaddr = clientaddr;
@@ -1939,12 +1939,11 @@ pgstat_report_activity(const char *cmd_str)
 }
 
 /*
- * Set the current transaction start timestamp to the specified
- * value. If there is no current active transaction, this is signified
- * by 0.
+ * Report current transaction start timestamp as the specified value.
+ * Zero means there is no active transaction.
  */
 void
-pgstat_report_txn_timestamp(TimestampTz tstamp)
+pgstat_report_xact_timestamp(TimestampTz tstamp)
 {
 	volatile PgBackendStatus *beentry = MyBEEntry;
 
@@ -1957,7 +1956,7 @@ pgstat_report_txn_timestamp(TimestampTz tstamp)
 	 * here to ensure the compiler doesn't try to get cute.
 	 */
 	beentry->st_changecount++;
-	beentry->st_txn_start_timestamp = tstamp;
+	beentry->st_xact_start_timestamp = tstamp;
 	beentry->st_changecount++;
 	Assert((beentry->st_changecount & 1) == 0);
 }

src/backend/utils/adt/pgstatfuncs.c

@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.43 2007/06/28 00:02:39 tgl Exp $
+ *	  $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.44 2007/09/11 03:28:05 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -45,7 +45,7 @@ extern Datum pg_stat_get_backend_userid(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_backend_activity(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_backend_waiting(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_backend_activity_start(PG_FUNCTION_ARGS);
-extern Datum pg_stat_get_backend_txn_start(PG_FUNCTION_ARGS);
+extern Datum pg_stat_get_backend_xact_start(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_backend_start(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_backend_client_addr(PG_FUNCTION_ARGS);
 extern Datum pg_stat_get_backend_client_port(PG_FUNCTION_ARGS);
@@ -464,7 +464,7 @@ pg_stat_get_backend_activity_start(PG_FUNCTION_ARGS)
 
 
 Datum
-pg_stat_get_backend_txn_start(PG_FUNCTION_ARGS)
+pg_stat_get_backend_xact_start(PG_FUNCTION_ARGS)
 {
 	int32		beid = PG_GETARG_INT32(0);
 	TimestampTz result;
@@ -476,7 +476,7 @@ pg_stat_get_backend_txn_start(PG_FUNCTION_ARGS)
 	if (!superuser() && beentry->st_userid != GetUserId())
 		PG_RETURN_NULL();
 
-	result = beentry->st_txn_start_timestamp;
+	result = beentry->st_xact_start_timestamp;
 
 	if (result == 0)			/* not in a transaction */
 		PG_RETURN_NULL();

src/include/catalog/catversion.h

@@ -37,7 +37,7 @@
  * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.423 2007/09/05 18:10:48 tgl Exp $
+ * $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.424 2007/09/11 03:28:05 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -53,6 +53,6 @@
  */
 
 /*							yyyymmddN */
-#define CATALOG_VERSION_NO	200709042
+#define CATALOG_VERSION_NO	200709101
 
 #endif

src/include/catalog/pg_proc.h

@@ -7,7 +7,7 @@
  * Portions Copyright (c) 1996-2007, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.468 2007/09/04 16:41:42 adunstan Exp $
+ * $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.469 2007/09/11 03:28:05 tgl Exp $
  *
  * NOTES
  *	  The script catalog/genbki.sh reads this file and generates .bki
@@ -2899,7 +2899,7 @@ DATA(insert OID = 2853 (  pg_stat_get_backend_waiting	PGNSP PGUID 12 1 0 f f t f
 DESCR("statistics: is backend currently waiting for a lock");
 DATA(insert OID = 2094 (  pg_stat_get_backend_activity_start PGNSP PGUID 12 1 0 f f t f s 1 1184 "23" _null_ _null_ _null_	pg_stat_get_backend_activity_start - _null_ _null_ ));
 DESCR("statistics: start time for current query of backend");
-DATA(insert OID = 2857 (  pg_stat_get_backend_txn_start PGNSP PGUID 12 1 0 f f t f s 1 1184 "23" _null_ _null_ _null_	pg_stat_get_backend_txn_start - _null_ _null_ ));
+DATA(insert OID = 2857 (  pg_stat_get_backend_xact_start PGNSP PGUID 12 1 0 f f t f s 1 1184 "23" _null_ _null_ _null_	pg_stat_get_backend_xact_start - _null_ _null_ ));
 DESCR("statistics: start time for backend's current transaction");
 DATA(insert OID = 1391 ( pg_stat_get_backend_start PGNSP PGUID 12 1 0 f f t f s 1 1184 "23" _null_ _null_ _null_ pg_stat_get_backend_start - _null_ _null_ ));
 DESCR("statistics: start time for current backend session");

src/include/pgstat.h

@@ -5,7 +5,7 @@
  *
  *	Copyright (c) 2001-2007, PostgreSQL Global Development Group
  *
- *	$PostgreSQL: pgsql/src/include/pgstat.h,v 1.64 2007/07/08 22:23:16 tgl Exp $
+ *	$PostgreSQL: pgsql/src/include/pgstat.h,v 1.65 2007/09/11 03:28:05 tgl Exp $
  * ----------
  */
 #ifndef PGSTAT_H
@@ -430,7 +430,7 @@ typedef struct PgBackendStatus
 
 	/* Times when current backend, transaction, and activity started */
 	TimestampTz st_proc_start_timestamp;
-	TimestampTz st_txn_start_timestamp;
+	TimestampTz st_xact_start_timestamp;
 	TimestampTz st_activity_start_timestamp;
 
 	/* Database OID, owning user's OID, connection client address */
@@ -501,7 +501,7 @@ extern void pgstat_initialize(void);
 extern void pgstat_bestart(void);
 
 extern void pgstat_report_activity(const char *what);
-extern void pgstat_report_txn_timestamp(TimestampTz tstamp);
+extern void pgstat_report_xact_timestamp(TimestampTz tstamp);
 extern void pgstat_report_waiting(bool waiting);
 
 extern void pgstat_initstats(Relation rel);

src/test/regress/expected/rules.out

@@ -1289,7 +1289,7 @@ SELECT viewname, definition FROM pg_views WHERE schemaname <> 'information_schem
  pg_rules                 | SELECT n.nspname AS schemaname, c.relname AS tablename, r.rulename, pg_get_ruledef(r.oid) AS definition FROM ((pg_rewrite r JOIN pg_class c ON ((c.oid = r.ev_class))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (r.rulename <> '_RETURN'::name);
  pg_settings              | SELECT a.name, a.setting, a.unit, a.category, a.short_desc, a.extra_desc, a.context, a.vartype, a.source, a.min_val, a.max_val FROM pg_show_all_settings() a(name text, setting text, unit text, category text, short_desc text, extra_desc text, context text, vartype text, source text, min_val text, max_val text);
  pg_shadow                | SELECT pg_authid.rolname AS usename, pg_authid.oid AS usesysid, pg_authid.rolcreatedb AS usecreatedb, pg_authid.rolsuper AS usesuper, pg_authid.rolcatupdate AS usecatupd, pg_authid.rolpassword AS passwd, (pg_authid.rolvaliduntil)::abstime AS valuntil, pg_authid.rolconfig AS useconfig FROM pg_authid WHERE pg_authid.rolcanlogin;
- pg_stat_activity         | SELECT d.oid AS datid, d.datname, pg_stat_get_backend_pid(s.backendid) AS procpid, pg_stat_get_backend_userid(s.backendid) AS usesysid, u.rolname AS usename, pg_stat_get_backend_activity(s.backendid) AS current_query, pg_stat_get_backend_waiting(s.backendid) AS waiting, pg_stat_get_backend_txn_start(s.backendid) AS txn_start, pg_stat_get_backend_activity_start(s.backendid) AS query_start, pg_stat_get_backend_start(s.backendid) AS backend_start, pg_stat_get_backend_client_addr(s.backendid) AS client_addr, pg_stat_get_backend_client_port(s.backendid) AS client_port FROM pg_database d, (SELECT pg_stat_get_backend_idset() AS backendid) s, pg_authid u WHERE ((pg_stat_get_backend_dbid(s.backendid) = d.oid) AND (pg_stat_get_backend_userid(s.backendid) = u.oid));
+ pg_stat_activity         | SELECT d.oid AS datid, d.datname, pg_stat_get_backend_pid(s.backendid) AS procpid, pg_stat_get_backend_userid(s.backendid) AS usesysid, u.rolname AS usename, pg_stat_get_backend_activity(s.backendid) AS current_query, pg_stat_get_backend_waiting(s.backendid) AS waiting, pg_stat_get_backend_xact_start(s.backendid) AS xact_start, pg_stat_get_backend_activity_start(s.backendid) AS query_start, pg_stat_get_backend_start(s.backendid) AS backend_start, pg_stat_get_backend_client_addr(s.backendid) AS client_addr, pg_stat_get_backend_client_port(s.backendid) AS client_port FROM pg_database d, (SELECT pg_stat_get_backend_idset() AS backendid) s, pg_authid u WHERE ((pg_stat_get_backend_dbid(s.backendid) = d.oid) AND (pg_stat_get_backend_userid(s.backendid) = u.oid));
  pg_stat_all_indexes      | SELECT c.oid AS relid, i.oid AS indexrelid, n.nspname AS schemaname, c.relname, i.relname AS indexrelname, pg_stat_get_numscans(i.oid) AS idx_scan, pg_stat_get_tuples_returned(i.oid) AS idx_tup_read, pg_stat_get_tuples_fetched(i.oid) AS idx_tup_fetch FROM (((pg_class c JOIN pg_index x ON ((c.oid = x.indrelid))) JOIN pg_class i ON ((i.oid = x.indexrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = ANY (ARRAY['r'::"char", 't'::"char"]));
  pg_stat_all_tables       | SELECT c.oid AS relid, n.nspname AS schemaname, c.relname, pg_stat_get_numscans(c.oid) AS seq_scan, pg_stat_get_tuples_returned(c.oid) AS seq_tup_read, (sum(pg_stat_get_numscans(i.indexrelid)))::bigint AS idx_scan, ((sum(pg_stat_get_tuples_fetched(i.indexrelid)))::bigint + pg_stat_get_tuples_fetched(c.oid)) AS idx_tup_fetch, pg_stat_get_tuples_inserted(c.oid) AS n_tup_ins, pg_stat_get_tuples_updated(c.oid) AS n_tup_upd, pg_stat_get_tuples_deleted(c.oid) AS n_tup_del, pg_stat_get_live_tuples(c.oid) AS n_live_tup, pg_stat_get_dead_tuples(c.oid) AS n_dead_tup, pg_stat_get_last_vacuum_time(c.oid) AS last_vacuum, pg_stat_get_last_autovacuum_time(c.oid) AS last_autovacuum, pg_stat_get_last_analyze_time(c.oid) AS last_analyze, pg_stat_get_last_autoanalyze_time(c.oid) AS last_autoanalyze FROM ((pg_class c LEFT JOIN pg_index i ON ((c.oid = i.indrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = ANY (ARRAY['r'::"char", 't'::"char"])) GROUP BY c.oid, n.nspname, c.relname;
  pg_stat_bgwriter         | SELECT pg_stat_get_bgwriter_timed_checkpoints() AS checkpoints_timed, pg_stat_get_bgwriter_requested_checkpoints() AS checkpoints_req, pg_stat_get_bgwriter_buf_written_checkpoints() AS buffers_checkpoint, pg_stat_get_bgwriter_buf_written_clean() AS buffers_clean, pg_stat_get_bgwriter_maxwritten_clean() AS maxwritten_clean;