diff --git a/contrib/pg_stat_statements/Makefile b/contrib/pg_stat_statements/Makefile
index 5bbe054367..c2133d1ccb 100644
--- a/contrib/pg_stat_statements/Makefile
+++ b/contrib/pg_stat_statements/Makefile
@@ -6,11 +6,11 @@ OBJS = \
pg_stat_statements.o
EXTENSION = pg_stat_statements
-DATA = pg_stat_statements--1.4.sql pg_stat_statements--1.6--1.7.sql \
- pg_stat_statements--1.5--1.6.sql pg_stat_statements--1.4--1.5.sql \
- pg_stat_statements--1.3--1.4.sql pg_stat_statements--1.2--1.3.sql \
- pg_stat_statements--1.1--1.2.sql pg_stat_statements--1.0--1.1.sql \
- pg_stat_statements--unpackaged--1.0.sql
+DATA = pg_stat_statements--1.4.sql pg_stat_statements--1.7--1.8.sql \
+ pg_stat_statements--1.6--1.7.sql pg_stat_statements--1.5--1.6.sql \
+ pg_stat_statements--1.4--1.5.sql pg_stat_statements--1.3--1.4.sql \
+ pg_stat_statements--1.2--1.3.sql pg_stat_statements--1.1--1.2.sql \
+ pg_stat_statements--1.0--1.1.sql pg_stat_statements--unpackaged--1.0.sql
PGFILEDESC = "pg_stat_statements - execution statistics of SQL statements"
LDFLAGS_SL += $(filter -lm, $(LIBS))
diff --git a/contrib/pg_stat_statements/expected/pg_stat_statements.out b/contrib/pg_stat_statements/expected/pg_stat_statements.out
index 6787ec1efd..a49a6e1a3b 100644
--- a/contrib/pg_stat_statements/expected/pg_stat_statements.out
+++ b/contrib/pg_stat_statements/expected/pg_stat_statements.out
@@ -95,25 +95,25 @@ EXECUTE pgss_test(1);
(1 row)
DEALLOCATE pgss_test;
-SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
- query | calls | rows
----------------------------------------------------+-------+------
- PREPARE pgss_test (int) AS SELECT $1, $2 LIMIT $3 | 1 | 1
- SELECT $1 +| 4 | 4
- +| |
- AS "text" | |
- SELECT $1 + $2 | 2 | 2
- SELECT $1 + $2 + $3 AS "add" | 3 | 3
- SELECT $1 AS "float" | 1 | 1
- SELECT $1 AS "int" | 2 | 2
- SELECT $1 AS i UNION SELECT $2 ORDER BY i | 1 | 2
- SELECT $1 || $2 | 1 | 1
- SELECT pg_stat_statements_reset() | 1 | 1
- WITH t(f) AS ( +| 1 | 2
- VALUES ($1), ($2) +| |
- ) +| |
- SELECT f FROM t ORDER BY f | |
- select $1::jsonb ? $2 | 1 | 1
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
+ query | calls | rows | wal_write_bytes | wal_write_records
+---------------------------------------------------+-------+------+-----------------+-------------------
+ PREPARE pgss_test (int) AS SELECT $1, $2 LIMIT $3 | 1 | 1 | 0 | 0
+ SELECT $1 +| 4 | 4 | 0 | 0
+ +| | | |
+ AS "text" | | | |
+ SELECT $1 + $2 | 2 | 2 | 0 | 0
+ SELECT $1 + $2 + $3 AS "add" | 3 | 3 | 0 | 0
+ SELECT $1 AS "float" | 1 | 1 | 0 | 0
+ SELECT $1 AS "int" | 2 | 2 | 0 | 0
+ SELECT $1 AS i UNION SELECT $2 ORDER BY i | 1 | 2 | 0 | 0
+ SELECT $1 || $2 | 1 | 1 | 0 | 0
+ SELECT pg_stat_statements_reset() | 1 | 1 | 0 | 0
+ WITH t(f) AS ( +| 1 | 2 | 0 | 0
+ VALUES ($1), ($2) +| | | |
+ ) +| | | |
+ SELECT f FROM t ORDER BY f | | | |
+ select $1::jsonb ? $2 | 1 | 1 | 0 | 0
(11 rows)
--
@@ -195,18 +195,111 @@ SELECT * FROM test WHERE a IN (1, 2, 3, 4, 5);
3 | c
(8 rows)
-SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
- query | calls | rows
--------------------------------------------------------------+-------+------
- DELETE FROM test WHERE a > $1 | 1 | 1
- INSERT INTO test (a, b) VALUES ($1, $2), ($3, $4), ($5, $6) | 1 | 3
- INSERT INTO test VALUES(generate_series($1, $2), $3) | 1 | 10
- SELECT * FROM test ORDER BY a | 1 | 12
- SELECT * FROM test WHERE a > $1 ORDER BY a | 2 | 4
- SELECT * FROM test WHERE a IN ($1, $2, $3, $4, $5) | 1 | 8
- SELECT pg_stat_statements_reset() | 1 | 1
- UPDATE test SET b = $1 WHERE a = $2 | 6 | 6
- UPDATE test SET b = $1 WHERE a > $2 | 1 | 3
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
+ query | calls | rows | wal_write_bytes | wal_write_records
+-------------------------------------------------------------+-------+------+-----------------+-------------------
+ DELETE FROM test WHERE a > $1 | 1 | 1 | 0 | 0
+ INSERT INTO test (a, b) VALUES ($1, $2), ($3, $4), ($5, $6) | 1 | 3 | 0 | 0
+ INSERT INTO test VALUES(generate_series($1, $2), $3) | 1 | 10 | 0 | 0
+ SELECT * FROM test ORDER BY a | 1 | 12 | 0 | 0
+ SELECT * FROM test WHERE a > $1 ORDER BY a | 2 | 4 | 0 | 0
+ SELECT * FROM test WHERE a IN ($1, $2, $3, $4, $5) | 1 | 8 | 0 | 0
+ SELECT pg_stat_statements_reset() | 1 | 1 | 0 | 0
+ UPDATE test SET b = $1 WHERE a = $2 | 6 | 6 | 0 | 0
+ UPDATE test SET b = $1 WHERE a > $2 | 1 | 3 | 0 | 0
+(9 rows)
+
+--
+-- CRUD: INSERT SELECT UPDATE DELETE on test table
+--
+SELECT pg_stat_statements_reset();
+ pg_stat_statements_reset
+--------------------------
+
+(1 row)
+
+-- utility "create table" should not be shown
+CREATE TABLE pgss_test (a int, b char(20));
+INSERT INTO pgss_test VALUES(generate_series(1, 10), 'aaa');
+UPDATE pgss_test SET b = 'bbb' WHERE a > 7;
+DELETE FROM pgss_test WHERE a > 9;
+-- explicit transaction
+BEGIN;
+UPDATE pgss_test SET b = '111' WHERE a = 1 ;
+COMMIT;
+BEGIN \;
+UPDATE pgss_test SET b = '222' WHERE a = 2 \;
+COMMIT ;
+UPDATE pgss_test SET b = '333' WHERE a = 3 \;
+UPDATE pgss_test SET b = '444' WHERE a = 4 ;
+BEGIN \;
+UPDATE pgss_test SET b = '555' WHERE a = 5 \;
+UPDATE pgss_test SET b = '666' WHERE a = 6 \;
+COMMIT ;
+-- many INSERT values
+INSERT INTO pgss_test (a, b) VALUES (1, 'a'), (2, 'b'), (3, 'c');
+-- SELECT with constants
+SELECT * FROM pgss_test WHERE a > 5 ORDER BY a ;
+ a | b
+---+----------------------
+ 6 | 666
+ 7 | aaa
+ 8 | bbb
+ 9 | bbb
+(4 rows)
+
+SELECT *
+ FROM pgss_test
+ WHERE a > 9
+ ORDER BY a ;
+ a | b
+---+---
+(0 rows)
+
+-- SELECT without constants
+SELECT * FROM pgss_test ORDER BY a;
+ a | b
+---+----------------------
+ 1 | a
+ 1 | 111
+ 2 | b
+ 2 | 222
+ 3 | c
+ 3 | 333
+ 4 | 444
+ 5 | 555
+ 6 | 666
+ 7 | aaa
+ 8 | bbb
+ 9 | bbb
+(12 rows)
+
+-- SELECT with IN clause
+SELECT * FROM pgss_test WHERE a IN (1, 2, 3, 4, 5);
+ a | b
+---+----------------------
+ 1 | 111
+ 2 | 222
+ 3 | 333
+ 4 | 444
+ 5 | 555
+ 1 | a
+ 2 | b
+ 3 | c
+(8 rows)
+
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
+ query | calls | rows | wal_write_bytes | wal_write_records
+------------------------------------------------------------------+-------+------+-----------------+-------------------
+ DELETE FROM pgss_test WHERE a > $1 | 1 | 1 | 54 | 1
+ INSERT INTO pgss_test (a, b) VALUES ($1, $2), ($3, $4), ($5, $6) | 1 | 3 | 240 | 3
+ INSERT INTO pgss_test VALUES(generate_series($1, $2), $3) | 1 | 10 | 800 | 10
+ SELECT * FROM pgss_test ORDER BY a | 1 | 12 | 0 | 0
+ SELECT * FROM pgss_test WHERE a > $1 ORDER BY a | 2 | 4 | 0 | 0
+ SELECT * FROM pgss_test WHERE a IN ($1, $2, $3, $4, $5) | 1 | 8 | 0 | 0
+ SELECT pg_stat_statements_reset() | 1 | 1 | 0 | 0
+ UPDATE pgss_test SET b = $1 WHERE a = $2 | 6 | 6 | 438 | 6
+ UPDATE pgss_test SET b = $1 WHERE a > $2 | 1 | 3 | 219 | 3
(9 rows)
--
@@ -287,13 +380,13 @@ SELECT PLUS_ONE(10);
11
(1 row)
-SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
- query | calls | rows
------------------------------------+-------+------
- SELECT $1::TEXT | 1 | 1
- SELECT PLUS_ONE($1) | 2 | 2
- SELECT PLUS_TWO($1) | 2 | 2
- SELECT pg_stat_statements_reset() | 1 | 1
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
+ query | calls | rows | wal_write_bytes | wal_write_records
+-----------------------------------+-------+------+-----------------+-------------------
+ SELECT $1::TEXT | 1 | 1 | 0 | 0
+ SELECT PLUS_ONE($1) | 2 | 2 | 0 | 0
+ SELECT PLUS_TWO($1) | 2 | 2 | 0 | 0
+ SELECT pg_stat_statements_reset() | 1 | 1 | 0 | 0
(4 rows)
--
@@ -344,14 +437,14 @@ SELECT PLUS_ONE(1);
2
(1 row)
-SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
- query | calls | rows
------------------------------------+-------+------
- SELECT (i + $2 + $3)::INTEGER | 2 | 2
- SELECT (i + $2)::INTEGER LIMIT $3 | 2 | 2
- SELECT PLUS_ONE($1) | 2 | 2
- SELECT PLUS_TWO($1) | 2 | 2
- SELECT pg_stat_statements_reset() | 1 | 1
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
+ query | calls | rows | wal_write_bytes | wal_write_records
+-----------------------------------+-------+------+-----------------+-------------------
+ SELECT (i + $2 + $3)::INTEGER | 2 | 2 | 0 | 0
+ SELECT (i + $2)::INTEGER LIMIT $3 | 2 | 2 | 0 | 0
+ SELECT PLUS_ONE($1) | 2 | 2 | 0 | 0
+ SELECT PLUS_TWO($1) | 2 | 2 | 0 | 0
+ SELECT pg_stat_statements_reset() | 1 | 1 | 0 | 0
(5 rows)
--
@@ -469,18 +562,20 @@ NOTICE: table "test" does not exist, skipping
NOTICE: table "test" does not exist, skipping
NOTICE: function plus_one(pg_catalog.int4) does not exist, skipping
DROP FUNCTION PLUS_TWO(INTEGER);
-SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
- query | calls | rows
--------------------------------------------+-------+------
- CREATE INDEX test_b ON test(b) | 1 | 0
- DROP FUNCTION IF EXISTS PLUS_ONE(INTEGER) | 1 | 0
- DROP FUNCTION PLUS_ONE(INTEGER) | 1 | 0
- DROP FUNCTION PLUS_TWO(INTEGER) | 1 | 0
- DROP TABLE IF EXISTS test | 3 | 0
- DROP TABLE test | 1 | 0
- SELECT $1 | 1 | 1
- SELECT pg_stat_statements_reset() | 1 | 1
-(8 rows)
+DROP TABLE pgss_test;
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
+ query | calls | rows | wal_write_bytes | wal_write_records
+-------------------------------------------+-------+------+-----------------+-------------------
+ CREATE INDEX test_b ON test(b) | 1 | 0 | 1673 | 16
+ DROP FUNCTION IF EXISTS PLUS_ONE(INTEGER) | 1 | 0 | 56 | 1
+ DROP FUNCTION PLUS_ONE(INTEGER) | 1 | 0 | 108 | 2
+ DROP FUNCTION PLUS_TWO(INTEGER) | 1 | 0 | 162 | 3
+ DROP TABLE IF EXISTS test | 3 | 0 | 0 | 0
+ DROP TABLE pgss_test | 1 | 0 | 798 | 15
+ DROP TABLE test | 1 | 0 | 1056 | 20
+ SELECT $1 | 1 | 1 | 0 | 0
+ SELECT pg_stat_statements_reset() | 1 | 1 | 0 | 0
+(9 rows)
--
-- Track user activity and reset them
diff --git a/contrib/pg_stat_statements/pg_stat_statements--1.7--1.8.sql b/contrib/pg_stat_statements/pg_stat_statements--1.7--1.8.sql
new file mode 100644
index 0000000000..37bdf73571
--- /dev/null
+++ b/contrib/pg_stat_statements/pg_stat_statements--1.7--1.8.sql
@@ -0,0 +1,49 @@
+/* contrib/pg_stat_statements/pg_stat_statements--1.7--1.8.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION pg_stat_statements UPDATE TO '1.8'" to load this file. \quit
+
+/* First we have to remove them from the extension */
+ALTER EXTENSION pg_stat_statements DROP VIEW pg_stat_statements;
+ALTER EXTENSION pg_stat_statements DROP FUNCTION pg_stat_statements(boolean);
+
+/* Then we can drop them */
+DROP VIEW pg_stat_statements;
+DROP FUNCTION pg_stat_statements(boolean);
+
+/* Now redefine */
+CREATE FUNCTION pg_stat_statements(IN showtext boolean,
+ OUT userid oid,
+ OUT dbid oid,
+ OUT queryid bigint,
+ OUT query text,
+ OUT calls int8,
+ OUT total_time float8,
+ OUT min_time float8,
+ OUT max_time float8,
+ OUT mean_time float8,
+ OUT stddev_time float8,
+ OUT rows int8,
+ OUT shared_blks_hit int8,
+ OUT shared_blks_read int8,
+ OUT shared_blks_dirtied int8,
+ OUT shared_blks_written int8,
+ OUT local_blks_hit int8,
+ OUT local_blks_read int8,
+ OUT local_blks_dirtied int8,
+ OUT local_blks_written int8,
+ OUT temp_blks_read int8,
+ OUT temp_blks_written int8,
+ OUT blk_read_time float8,
+ OUT blk_write_time float8,
+ OUT wal_write_bytes int8,
+ OUT wal_write_records int8
+)
+RETURNS SETOF record
+AS 'MODULE_PATHNAME', 'pg_stat_statements_1_4'
+LANGUAGE C STRICT VOLATILE;
+
+CREATE VIEW pg_stat_statements AS
+ SELECT * FROM pg_stat_statements(true);
+
+GRANT SELECT ON pg_stat_statements TO PUBLIC;
diff --git a/contrib/pg_stat_statements/pg_stat_statements.c b/contrib/pg_stat_statements/pg_stat_statements.c
index 6f82a671ee..2dc617437b 100644
--- a/contrib/pg_stat_statements/pg_stat_statements.c
+++ b/contrib/pg_stat_statements/pg_stat_statements.c
@@ -120,7 +120,8 @@ typedef enum pgssVersion
PGSS_V1_0 = 0,
PGSS_V1_1,
PGSS_V1_2,
- PGSS_V1_3
+ PGSS_V1_3,
+ PGSS_V1_4
} pgssVersion;
/*
@@ -161,6 +162,8 @@ typedef struct Counters
int64 local_blks_written; /* # of local disk blocks written */
int64 temp_blks_read; /* # of temp blocks read */
int64 temp_blks_written; /* # of temp blocks written */
+ int64 wal_bytes_written; /* total amount of wal bytes written */
+ int64 wal_records_written; /* # of wal records written */
double blk_read_time; /* time spent reading, in msec */
double blk_write_time; /* time spent writing, in msec */
double usage; /* usage factor */
@@ -293,6 +296,7 @@ PG_FUNCTION_INFO_V1(pg_stat_statements_reset);
PG_FUNCTION_INFO_V1(pg_stat_statements_reset_1_7);
PG_FUNCTION_INFO_V1(pg_stat_statements_1_2);
PG_FUNCTION_INFO_V1(pg_stat_statements_1_3);
+PG_FUNCTION_INFO_V1(pg_stat_statements_1_4);
PG_FUNCTION_INFO_V1(pg_stat_statements);
static void pgss_shmem_startup(void);
@@ -313,6 +317,7 @@ static void pgss_store(const char *query, uint64 queryId,
int query_location, int query_len,
double total_time, uint64 rows,
const BufferUsage *bufusage,
+ const WalUsage* walusage,
pgssJumbleState *jstate);
static void pg_stat_statements_internal(FunctionCallInfo fcinfo,
pgssVersion api_version,
@@ -841,6 +846,7 @@ pgss_post_parse_analyze(ParseState *pstate, Query *query)
0,
0,
NULL,
+ NULL,
&jstate);
}
@@ -944,6 +950,7 @@ pgss_ExecutorEnd(QueryDesc *queryDesc)
queryDesc->totaltime->total * 1000.0, /* convert to msec */
queryDesc->estate->es_processed,
&queryDesc->totaltime->bufusage,
+ &queryDesc->totaltime->walusage,
NULL);
}
@@ -989,7 +996,11 @@ pgss_ProcessUtility(PlannedStmt *pstmt, const char *queryString,
BufferUsage bufusage_start,
bufusage;
+ WalUsage walusage_start,
+ walusage;
+
bufusage_start = pgBufferUsage;
+ walusage_start = pgWalUsage;
INSTR_TIME_SET_CURRENT(start);
nested_level++;
@@ -1046,6 +1057,11 @@ pgss_ProcessUtility(PlannedStmt *pstmt, const char *queryString,
bufusage.blk_write_time = pgBufferUsage.blk_write_time;
INSTR_TIME_SUBTRACT(bufusage.blk_write_time, bufusage_start.blk_write_time);
+ walusage.wal_bytes =
+ pgWalUsage.wal_bytes - walusage_start.wal_bytes;
+ walusage.wal_records =
+ pgWalUsage.wal_records - walusage_start.wal_records;
+
pgss_store(queryString,
0, /* signal that it's a utility stmt */
pstmt->stmt_location,
@@ -1053,6 +1069,7 @@ pgss_ProcessUtility(PlannedStmt *pstmt, const char *queryString,
INSTR_TIME_GET_MILLISEC(duration),
rows,
&bufusage,
+ &walusage,
NULL);
}
else
@@ -1088,13 +1105,14 @@ pgss_hash_string(const char *str, int len)
*
* If jstate is not NULL then we're trying to create an entry for which
* we have no statistics as yet; we just want to record the normalized
- * query string. total_time, rows, bufusage are ignored in this case.
+ * query string. Time and usage are ignored in this case.
*/
static void
pgss_store(const char *query, uint64 queryId,
int query_location, int query_len,
double total_time, uint64 rows,
const BufferUsage *bufusage,
+ const WalUsage* walusage,
pgssJumbleState *jstate)
{
pgssHashKey key;
@@ -1286,6 +1304,8 @@ pgss_store(const char *query, uint64 queryId,
e->counters.blk_read_time += INSTR_TIME_GET_MILLISEC(bufusage->blk_read_time);
e->counters.blk_write_time += INSTR_TIME_GET_MILLISEC(bufusage->blk_write_time);
e->counters.usage += USAGE_EXEC(total_time);
+ e->counters.wal_bytes_written += walusage->wal_bytes;
+ e->counters.wal_records_written += walusage->wal_records;
SpinLockRelease(&e->mutex);
}
@@ -1333,7 +1353,8 @@ pg_stat_statements_reset(PG_FUNCTION_ARGS)
#define PG_STAT_STATEMENTS_COLS_V1_1 18
#define PG_STAT_STATEMENTS_COLS_V1_2 19
#define PG_STAT_STATEMENTS_COLS_V1_3 23
-#define PG_STAT_STATEMENTS_COLS 23 /* maximum of above */
+#define PG_STAT_STATEMENTS_COLS_V1_4 25
+#define PG_STAT_STATEMENTS_COLS 25 /* maximum of above */
/*
* Retrieve statement statistics.
@@ -1345,6 +1366,15 @@ pg_stat_statements_reset(PG_FUNCTION_ARGS)
* expected API version is identified by embedding it in the C name of the
* function. Unfortunately we weren't bright enough to do that for 1.1.
*/
+Datum pg_stat_statements_1_4(PG_FUNCTION_ARGS)
+{
+ bool showtext = PG_GETARG_BOOL(0);
+
+ pg_stat_statements_internal(fcinfo, PGSS_V1_4, showtext);
+
+ return (Datum)0;
+}
+
Datum
pg_stat_statements_1_3(PG_FUNCTION_ARGS)
{
@@ -1450,6 +1480,10 @@ pg_stat_statements_internal(FunctionCallInfo fcinfo,
if (api_version != PGSS_V1_3)
elog(ERROR, "incorrect number of output arguments");
break;
+ case PG_STAT_STATEMENTS_COLS_V1_4:
+ if (api_version != PGSS_V1_4)
+ elog(ERROR, "incorrect number of output arguments");
+ break;
default:
elog(ERROR, "incorrect number of output arguments");
}
@@ -1646,11 +1680,17 @@ pg_stat_statements_internal(FunctionCallInfo fcinfo,
values[i++] = Float8GetDatumFast(tmp.blk_read_time);
values[i++] = Float8GetDatumFast(tmp.blk_write_time);
}
+ if (api_version >= PGSS_V1_4)
+ {
+ values[i++] = Int64GetDatumFast(tmp.wal_bytes_written);
+ values[i++] = Int64GetDatumFast(tmp.wal_records_written);
+ }
Assert(i == (api_version == PGSS_V1_0 ? PG_STAT_STATEMENTS_COLS_V1_0 :
api_version == PGSS_V1_1 ? PG_STAT_STATEMENTS_COLS_V1_1 :
api_version == PGSS_V1_2 ? PG_STAT_STATEMENTS_COLS_V1_2 :
api_version == PGSS_V1_3 ? PG_STAT_STATEMENTS_COLS_V1_3 :
+ api_version == PGSS_V1_4 ? PG_STAT_STATEMENTS_COLS_V1_4 :
-1 /* fail if you forget to update this assert */ ));
tuplestore_putvalues(tupstore, tupdesc, values, nulls);
diff --git a/contrib/pg_stat_statements/pg_stat_statements.control b/contrib/pg_stat_statements/pg_stat_statements.control
index 14cb422354..7fb20df886 100644
--- a/contrib/pg_stat_statements/pg_stat_statements.control
+++ b/contrib/pg_stat_statements/pg_stat_statements.control
@@ -1,5 +1,5 @@
# pg_stat_statements extension
comment = 'track execution statistics of all SQL statements executed'
-default_version = '1.7'
+default_version = '1.8'
module_pathname = '$libdir/pg_stat_statements'
relocatable = true
diff --git a/contrib/pg_stat_statements/sql/pg_stat_statements.sql b/contrib/pg_stat_statements/sql/pg_stat_statements.sql
index 8b527070d4..7bf1fa4e9f 100644
--- a/contrib/pg_stat_statements/sql/pg_stat_statements.sql
+++ b/contrib/pg_stat_statements/sql/pg_stat_statements.sql
@@ -51,7 +51,7 @@ PREPARE pgss_test (int) AS SELECT $1, 'test' LIMIT 1;
EXECUTE pgss_test(1);
DEALLOCATE pgss_test;
-SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- CRUD: INSERT SELECT UPDATE DELETE on test table
@@ -99,7 +99,56 @@ SELECT * FROM test ORDER BY a;
-- SELECT with IN clause
SELECT * FROM test WHERE a IN (1, 2, 3, 4, 5);
-SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
+
+--
+-- CRUD: INSERT SELECT UPDATE DELETE on test table
+--
+SELECT pg_stat_statements_reset();
+
+-- utility "create table" should not be shown
+CREATE TABLE pgss_test (a int, b char(20));
+
+INSERT INTO pgss_test VALUES(generate_series(1, 10), 'aaa');
+UPDATE pgss_test SET b = 'bbb' WHERE a > 7;
+DELETE FROM pgss_test WHERE a > 9;
+
+-- explicit transaction
+BEGIN;
+UPDATE pgss_test SET b = '111' WHERE a = 1 ;
+COMMIT;
+
+BEGIN \;
+UPDATE pgss_test SET b = '222' WHERE a = 2 \;
+COMMIT ;
+
+UPDATE pgss_test SET b = '333' WHERE a = 3 \;
+UPDATE pgss_test SET b = '444' WHERE a = 4 ;
+
+BEGIN \;
+UPDATE pgss_test SET b = '555' WHERE a = 5 \;
+UPDATE pgss_test SET b = '666' WHERE a = 6 \;
+COMMIT ;
+
+-- many INSERT values
+INSERT INTO pgss_test (a, b) VALUES (1, 'a'), (2, 'b'), (3, 'c');
+
+-- SELECT with constants
+SELECT * FROM pgss_test WHERE a > 5 ORDER BY a ;
+
+SELECT *
+ FROM pgss_test
+ WHERE a > 9
+ ORDER BY a ;
+
+-- SELECT without constants
+SELECT * FROM pgss_test ORDER BY a;
+
+-- SELECT with IN clause
+SELECT * FROM pgss_test WHERE a IN (1, 2, 3, 4, 5);
+
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
+
--
-- pg_stat_statements.track = none
@@ -144,7 +193,7 @@ $$ SELECT (i + 1.0)::INTEGER LIMIT 1 $$ LANGUAGE SQL;
SELECT PLUS_ONE(8);
SELECT PLUS_ONE(10);
-SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- pg_stat_statements.track = all
@@ -175,7 +224,7 @@ $$ SELECT (i + 1.0)::INTEGER LIMIT 1 $$ LANGUAGE SQL;
SELECT PLUS_ONE(3);
SELECT PLUS_ONE(1);
-SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- queries with locking clauses
@@ -223,8 +272,9 @@ DROP TABLE IF EXISTS test \;
DROP TABLE IF EXISTS test \;
DROP FUNCTION IF EXISTS PLUS_ONE(INTEGER);
DROP FUNCTION PLUS_TWO(INTEGER);
+DROP TABLE pgss_test;
-SELECT query, calls, rows FROM pg_stat_statements ORDER BY query COLLATE "C";
+SELECT query, calls, rows, wal_write_bytes, wal_write_records FROM pg_stat_statements ORDER BY query COLLATE "C";
--
-- Track user activity and reset them
diff --git a/doc/src/sgml/pgstatstatements.sgml b/doc/src/sgml/pgstatstatements.sgml
index 26bb82da4a..f042b84f32 100644
--- a/doc/src/sgml/pgstatstatements.sgml
+++ b/doc/src/sgml/pgstatstatements.sgml
@@ -221,6 +221,24 @@
+
+ wal_write_bytes
+ bigint
+
+
+ Amount of WAL bytes added by the statement
+
+
+
+
+ wal_write_records
+ bigint
+
+
+ Count of WAL records added by the statement
+
+
+