mirror of https://github.com/citusdata/citus.git
85 lines
1.9 KiB
Plaintext
85 lines
1.9 KiB
Plaintext
--
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-- Testing we handle rollbacks properly
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--
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CREATE TABLE t(a int, b int) USING columnar;
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CREATE VIEW t_stripes AS
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SELECT * FROM columnar.stripe a, pg_class b
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WHERE a.storage_id = columnar_relation_storageid(b.oid) AND b.relname = 't';
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BEGIN;
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INSERT INTO t SELECT i, i+1 FROM generate_series(1, 10) i;
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ROLLBACK;
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SELECT count(*) FROM t;
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count
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---------------------------------------------------------------------
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0
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(1 row)
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-- check stripe metadata also have been rolled-back
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SELECT count(*) FROM t_stripes;
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count
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---------------------------------------------------------------------
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0
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(1 row)
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INSERT INTO t SELECT i, i+1 FROM generate_series(1, 10) i;
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SELECT count(*) FROM t;
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count
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---------------------------------------------------------------------
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10
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(1 row)
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SELECT count(*) FROM t_stripes;
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count
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---------------------------------------------------------------------
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1
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(1 row)
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-- savepoint rollback
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BEGIN;
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SAVEPOINT s0;
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INSERT INTO t SELECT i, i+1 FROM generate_series(1, 10) i;
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SELECT count(*) FROM t; -- force flush
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count
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---------------------------------------------------------------------
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20
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(1 row)
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SAVEPOINT s1;
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INSERT INTO t SELECT i, i+1 FROM generate_series(1, 10) i;
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SELECT count(*) FROM t;
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count
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---------------------------------------------------------------------
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30
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(1 row)
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ROLLBACK TO SAVEPOINT s1;
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SELECT count(*) FROM t;
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count
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---------------------------------------------------------------------
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20
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(1 row)
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ROLLBACK TO SAVEPOINT s0;
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SELECT count(*) FROM t;
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count
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---------------------------------------------------------------------
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10
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(1 row)
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INSERT INTO t SELECT i, i+1 FROM generate_series(1, 10) i;
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COMMIT;
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SELECT count(*) FROM t;
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count
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---------------------------------------------------------------------
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20
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(1 row)
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SELECT count(*) FROM t_stripes;
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count
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---------------------------------------------------------------------
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2
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(1 row)
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DROP TABLE t;
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DROP VIEW t_stripes;
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