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citus/src/test/regress/expected/columnar_transactions.out

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--
-- Testing we handle transactions properly
--
CREATE TABLE t(a int, b int) USING columnar;
INSERT INTO t SELECT i, 2 * i FROM generate_series(1, 3) i;
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
(3 rows)
-- verify that table rewrites work properly
BEGIN;
ALTER TABLE t ALTER COLUMN b TYPE float4 USING (b + 0.5)::float4;
INSERT INTO t VALUES (4, 8.5);
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2.5
2 | 4.5
3 | 6.5
4 | 8.5
(4 rows)
ROLLBACK;
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
(3 rows)
-- verify truncate rollback
BEGIN;
TRUNCATE t;
INSERT INTO t VALUES (4, 8);
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
4 | 8
(1 row)
SAVEPOINT s1;
TRUNCATE t;
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
(0 rows)
ROLLBACK TO SAVEPOINT s1;
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
4 | 8
(1 row)
ROLLBACK;
-- verify truncate with unflushed data in upper xacts
BEGIN;
INSERT INTO t VALUES (4, 8);
SAVEPOINT s1;
TRUNCATE t;
ROLLBACK TO SAVEPOINT s1;
COMMIT;
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
(4 rows)
-- verify DROP TABLE rollback
BEGIN;
INSERT INTO t VALUES (5, 10);
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
(5 rows)
SAVEPOINT s1;
DROP TABLE t;
SELECT * FROM t ORDER BY a;
ERROR: relation "t" does not exist
ROLLBACK TO SAVEPOINT s1;
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
(5 rows)
ROLLBACK;
-- verify DROP TABLE with unflushed data in upper xacts
BEGIN;
INSERT INTO t VALUES (5, 10);
SAVEPOINT s1;
DROP TABLE t;
SELECT * FROM t ORDER BY a;
ERROR: relation "t" does not exist
ROLLBACK TO SAVEPOINT s1;
COMMIT;
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
(5 rows)
-- verify SELECT when unflushed data in upper transactions errors.
BEGIN;
INSERT INTO t VALUES (6, 12);
SAVEPOINT s1;
SELECT * FROM t;
ERROR: cannot read from table when there is unflushed data in upper transactions
ROLLBACK;
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
(5 rows)
--
-- Prepared transactions
--
BEGIN;
INSERT INTO t VALUES (6, 12);
INSERT INTO t VALUES (7, 14);
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
6 | 12
7 | 14
(7 rows)
PREPARE TRANSACTION 'tx01';
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
(5 rows)
ROLLBACK PREPARED 'tx01';
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
(5 rows)
BEGIN;
INSERT INTO t VALUES (6, 13);
INSERT INTO t VALUES (7, 15);
PREPARE TRANSACTION 'tx02';
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
(5 rows)
COMMIT PREPARED 'tx02';
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
6 | 13
7 | 15
(7 rows)
--
-- Prepared statements
--
-- INSERT INTO with 0 params
PREPARE p0 AS INSERT INTO t VALUES (8, 8), (9, 9);
EXPLAIN (COSTS OFF) EXECUTE p0;
QUERY PLAN
---------------------------------------------------------------------
Insert on t
-> Values Scan on "*VALUES*"
(2 rows)
EXECUTE p0;
EXPLAIN (ANALYZE true, COSTS off, TIMING off, SUMMARY off) EXECUTE p0;
QUERY PLAN
---------------------------------------------------------------------
Insert on t (actual rows=0 loops=1)
-> Values Scan on "*VALUES*" (actual rows=2 loops=1)
(2 rows)
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
6 | 13
7 | 15
8 | 8
8 | 8
9 | 9
9 | 9
(11 rows)
-- INSERT INTO with 1 param
PREPARE p1(int) AS INSERT INTO t VALUES (10, $1), (11, $1+2);
EXPLAIN (COSTS OFF) EXECUTE p1(16);
QUERY PLAN
---------------------------------------------------------------------
Insert on t
-> Values Scan on "*VALUES*"
(2 rows)
EXECUTE p1(16);
EXPLAIN (ANALYZE true, COSTS off, TIMING off, SUMMARY off) EXECUTE p1(20);
QUERY PLAN
---------------------------------------------------------------------
Insert on t (actual rows=0 loops=1)
-> Values Scan on "*VALUES*" (actual rows=2 loops=1)
(2 rows)
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
6 | 13
7 | 15
8 | 8
8 | 8
9 | 9
9 | 9
10 | 16
10 | 20
11 | 22
11 | 18
(15 rows)
-- INSERT INTO with >1 params
PREPARE p2(int, int) AS INSERT INTO t VALUES (12, $1), (13, $1+2), (14, $2), ($1+1, $2+1);
EXPLAIN (COSTS OFF) EXECUTE p2(30, 40);
QUERY PLAN
---------------------------------------------------------------------
Insert on t
-> Values Scan on "*VALUES*"
(2 rows)
EXECUTE p2(30, 40);
EXPLAIN (ANALYZE true, COSTS off, TIMING off, SUMMARY off) EXECUTE p2(50, 60);
QUERY PLAN
---------------------------------------------------------------------
Insert on t (actual rows=0 loops=1)
-> Values Scan on "*VALUES*" (actual rows=4 loops=1)
(2 rows)
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
6 | 13
7 | 15
8 | 8
8 | 8
9 | 9
9 | 9
10 | 16
10 | 20
11 | 22
11 | 18
12 | 50
12 | 30
13 | 52
13 | 32
14 | 40
14 | 60
31 | 41
51 | 61
(23 rows)
-- SELECT with 0 params
PREPARE p3 AS SELECT * FROM t WHERE a = 8;
EXPLAIN (COSTS OFF) EXECUTE p3;
QUERY PLAN
---------------------------------------------------------------------
Custom Scan (ColumnarScan) on t
Filter: (a = 8)
(2 rows)
EXECUTE p3;
a | b
---------------------------------------------------------------------
8 | 8
8 | 8
(2 rows)
EXPLAIN (ANALYZE true, COSTS off, TIMING off, SUMMARY off) EXECUTE p3;
QUERY PLAN
---------------------------------------------------------------------
Custom Scan (ColumnarScan) on t (actual rows=2 loops=1)
Filter: (a = 8)
Rows Removed by Filter: 2
Columnar Chunk Groups Removed by Filter: 8
(4 rows)
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
6 | 13
7 | 15
8 | 8
8 | 8
9 | 9
9 | 9
10 | 16
10 | 20
11 | 22
11 | 18
12 | 50
12 | 30
13 | 52
13 | 32
14 | 40
14 | 60
31 | 41
51 | 61
(23 rows)
-- SELECT with 1 param
PREPARE p5(int) AS SELECT * FROM t WHERE a = $1;
EXPLAIN (COSTS OFF) EXECUTE p5(16);
QUERY PLAN
---------------------------------------------------------------------
Custom Scan (ColumnarScan) on t
Filter: (a = 16)
(2 rows)
EXECUTE p5(16);
a | b
---------------------------------------------------------------------
(0 rows)
EXPLAIN (ANALYZE true, COSTS off, TIMING off, SUMMARY off) EXECUTE p5(9);
QUERY PLAN
---------------------------------------------------------------------
Custom Scan (ColumnarScan) on t (actual rows=2 loops=1)
Filter: (a = 9)
Rows Removed by Filter: 2
Columnar Chunk Groups Removed by Filter: 8
(4 rows)
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
6 | 13
7 | 15
8 | 8
8 | 8
9 | 9
9 | 9
10 | 16
10 | 20
11 | 22
11 | 18
12 | 50
12 | 30
13 | 52
13 | 32
14 | 40
14 | 60
31 | 41
51 | 61
(23 rows)
-- SELECT with >1 params
PREPARE p6(int, int) AS SELECT * FROM t WHERE a = $1+1 AND b = $2+1;
EXPLAIN (COSTS OFF) EXECUTE p6(30, 40);
QUERY PLAN
---------------------------------------------------------------------
Custom Scan (ColumnarScan) on t
Filter: ((a = 31) AND (b = 41))
(2 rows)
EXECUTE p6(30, 40);
a | b
---------------------------------------------------------------------
31 | 41
(1 row)
EXPLAIN (ANALYZE true, COSTS off, TIMING off, SUMMARY off) EXECUTE p6(50, 60);
QUERY PLAN
---------------------------------------------------------------------
Custom Scan (ColumnarScan) on t (actual rows=1 loops=1)
Filter: ((a = 51) AND (b = 61))
Rows Removed by Filter: 3
Columnar Chunk Groups Removed by Filter: 9
(4 rows)
SELECT * FROM t ORDER BY a;
a | b
---------------------------------------------------------------------
1 | 2
2 | 4
3 | 6
4 | 8
5 | 10
6 | 13
7 | 15
8 | 8
8 | 8
9 | 9
9 | 9
10 | 16
10 | 20
11 | 22
11 | 18
12 | 50
12 | 30
13 | 52
13 | 32
14 | 40
14 | 60
31 | 41
51 | 61
(23 rows)
DROP TABLE t;
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