239 lines
9.6 KiB
PL/PgSQL
239 lines
9.6 KiB
PL/PgSQL
-- create a table to use as a basis for views and materialized views in various combinations
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CREATE TABLE mvtest_t (id int NOT NULL PRIMARY KEY, type text NOT NULL, amt numeric NOT NULL);
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INSERT INTO mvtest_t VALUES
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(1, 'x', 2),
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(2, 'x', 3),
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(3, 'y', 5),
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(4, 'y', 7),
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(5, 'z', 11);
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-- we want a view based on the table, too, since views present additional challenges
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CREATE VIEW mvtest_tv AS SELECT type, sum(amt) AS totamt FROM mvtest_t GROUP BY type;
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SELECT * FROM mvtest_tv ORDER BY type;
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-- create a materialized view with no data, and confirm correct behavior
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EXPLAIN (costs off)
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CREATE MATERIALIZED VIEW mvtest_tm AS SELECT type, sum(amt) AS totamt FROM mvtest_t GROUP BY type WITH NO DATA;
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CREATE MATERIALIZED VIEW mvtest_tm AS SELECT type, sum(amt) AS totamt FROM mvtest_t GROUP BY type WITH NO DATA;
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SELECT relispopulated FROM pg_class WHERE oid = 'mvtest_tm'::regclass;
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SELECT * FROM mvtest_tm ORDER BY type;
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REFRESH MATERIALIZED VIEW mvtest_tm;
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SELECT relispopulated FROM pg_class WHERE oid = 'mvtest_tm'::regclass;
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CREATE UNIQUE INDEX mvtest_tm_type ON mvtest_tm (type);
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SELECT * FROM mvtest_tm ORDER BY type;
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-- create various views
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EXPLAIN (costs off)
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CREATE MATERIALIZED VIEW mvtest_tvm AS SELECT * FROM mvtest_tv ORDER BY type;
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CREATE MATERIALIZED VIEW mvtest_tvm AS SELECT * FROM mvtest_tv ORDER BY type;
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SELECT * FROM mvtest_tvm;
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CREATE MATERIALIZED VIEW mvtest_tmm AS SELECT sum(totamt) AS grandtot FROM mvtest_tm;
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CREATE MATERIALIZED VIEW mvtest_tvmm AS SELECT sum(totamt) AS grandtot FROM mvtest_tvm;
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CREATE UNIQUE INDEX mvtest_tvmm_expr ON mvtest_tvmm ((grandtot > 0));
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CREATE UNIQUE INDEX mvtest_tvmm_pred ON mvtest_tvmm (grandtot) WHERE grandtot < 0;
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CREATE VIEW mvtest_tvv AS SELECT sum(totamt) AS grandtot FROM mvtest_tv;
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EXPLAIN (costs off)
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CREATE MATERIALIZED VIEW mvtest_tvvm AS SELECT * FROM mvtest_tvv;
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CREATE MATERIALIZED VIEW mvtest_tvvm AS SELECT * FROM mvtest_tvv;
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CREATE VIEW mvtest_tvvmv AS SELECT * FROM mvtest_tvvm;
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CREATE MATERIALIZED VIEW mvtest_bb AS SELECT * FROM mvtest_tvvmv;
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CREATE INDEX mvtest_aa ON mvtest_bb (grandtot);
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-- check that plans seem reasonable
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\d+ mvtest_tvm
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\d+ mvtest_tvm
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\d+ mvtest_tvvm
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\d+ mvtest_bb
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-- test schema behavior
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CREATE SCHEMA mvtest_mvschema;
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ALTER MATERIALIZED VIEW mvtest_tvm SET SCHEMA mvtest_mvschema;
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\d+ mvtest_tvm
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\d+ mvtest_tvmm
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SET search_path = mvtest_mvschema, public;
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\d+ mvtest_tvm
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-- modify the underlying table data
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INSERT INTO mvtest_t VALUES (6, 'z', 13);
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-- confirm pre- and post-refresh contents of fairly simple materialized views
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SELECT * FROM mvtest_tm ORDER BY type;
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SELECT * FROM mvtest_tvm ORDER BY type;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mvtest_tm;
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REFRESH MATERIALIZED VIEW mvtest_tvm;
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SELECT * FROM mvtest_tm ORDER BY type;
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SELECT * FROM mvtest_tvm ORDER BY type;
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RESET search_path;
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-- confirm pre- and post-refresh contents of nested materialized views
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EXPLAIN (costs off)
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SELECT * FROM mvtest_tmm;
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EXPLAIN (costs off)
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SELECT * FROM mvtest_tvmm;
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EXPLAIN (costs off)
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SELECT * FROM mvtest_tvvm;
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SELECT * FROM mvtest_tmm;
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SELECT * FROM mvtest_tvmm;
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SELECT * FROM mvtest_tvvm;
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REFRESH MATERIALIZED VIEW mvtest_tmm;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mvtest_tvmm;
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REFRESH MATERIALIZED VIEW mvtest_tvmm;
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REFRESH MATERIALIZED VIEW mvtest_tvvm;
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EXPLAIN (costs off)
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SELECT * FROM mvtest_tmm;
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EXPLAIN (costs off)
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SELECT * FROM mvtest_tvmm;
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EXPLAIN (costs off)
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SELECT * FROM mvtest_tvvm;
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SELECT * FROM mvtest_tmm;
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SELECT * FROM mvtest_tvmm;
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SELECT * FROM mvtest_tvvm;
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-- test diemv when the mv does not exist
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DROP MATERIALIZED VIEW IF EXISTS no_such_mv;
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-- make sure invalid combination of options is prohibited
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REFRESH MATERIALIZED VIEW CONCURRENTLY mvtest_tvmm WITH NO DATA;
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-- no tuple locks on materialized views
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SELECT * FROM mvtest_tvvm FOR SHARE;
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-- test join of mv and view
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SELECT type, m.totamt AS mtot, v.totamt AS vtot FROM mvtest_tm m LEFT JOIN mvtest_tv v USING (type) ORDER BY type;
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-- make sure that dependencies are reported properly when they block the drop
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DROP TABLE mvtest_t;
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-- make sure dependencies are dropped and reported
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-- and make sure that transactional behavior is correct on rollback
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-- incidentally leaving some interesting materialized views for pg_dump testing
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BEGIN;
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DROP TABLE mvtest_t CASCADE;
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ROLLBACK;
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-- some additional tests not using base tables
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CREATE VIEW mvtest_vt1 AS SELECT 1 moo;
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CREATE VIEW mvtest_vt2 AS SELECT moo, 2*moo FROM mvtest_vt1 UNION ALL SELECT moo, 3*moo FROM mvtest_vt1;
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\d+ mvtest_vt2
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CREATE MATERIALIZED VIEW mv_test2 AS SELECT moo, 2*moo FROM mvtest_vt2 UNION ALL SELECT moo, 3*moo FROM mvtest_vt2;
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\d+ mv_test2
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CREATE MATERIALIZED VIEW mv_test3 AS SELECT * FROM mv_test2 WHERE moo = 12345;
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SELECT relispopulated FROM pg_class WHERE oid = 'mv_test3'::regclass;
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DROP VIEW mvtest_vt1 CASCADE;
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-- test that duplicate values on unique index prevent refresh
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CREATE TABLE mvtest_foo(a, b) AS VALUES(1, 10);
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CREATE MATERIALIZED VIEW mvtest_mv AS SELECT * FROM mvtest_foo;
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CREATE UNIQUE INDEX ON mvtest_mv(a);
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INSERT INTO mvtest_foo SELECT * FROM mvtest_foo;
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REFRESH MATERIALIZED VIEW mvtest_mv;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mvtest_mv;
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DROP TABLE mvtest_foo CASCADE;
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-- make sure that all columns covered by unique indexes works
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CREATE TABLE mvtest_foo(a, b, c) AS VALUES(1, 2, 3);
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CREATE MATERIALIZED VIEW mvtest_mv AS SELECT * FROM mvtest_foo;
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CREATE UNIQUE INDEX ON mvtest_mv (a);
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CREATE UNIQUE INDEX ON mvtest_mv (b);
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CREATE UNIQUE INDEX on mvtest_mv (c);
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INSERT INTO mvtest_foo VALUES(2, 3, 4);
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INSERT INTO mvtest_foo VALUES(3, 4, 5);
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REFRESH MATERIALIZED VIEW mvtest_mv;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mvtest_mv;
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DROP TABLE mvtest_foo CASCADE;
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-- allow subquery to reference unpopulated matview if WITH NO DATA is specified
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CREATE MATERIALIZED VIEW mvtest_mv1 AS SELECT 1 AS col1 WITH NO DATA;
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CREATE MATERIALIZED VIEW mvtest_mv2 AS SELECT * FROM mvtest_mv1
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WHERE col1 = (SELECT LEAST(col1) FROM mvtest_mv1) WITH NO DATA;
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DROP MATERIALIZED VIEW mvtest_mv1 CASCADE;
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-- make sure that types with unusual equality tests work
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CREATE TABLE mvtest_boxes (id serial primary key, b box);
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INSERT INTO mvtest_boxes (b) VALUES
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('(32,32),(31,31)'),
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('(2.0000004,2.0000004),(1,1)'),
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('(1.9999996,1.9999996),(1,1)');
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CREATE MATERIALIZED VIEW mvtest_boxmv AS SELECT * FROM mvtest_boxes;
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CREATE UNIQUE INDEX mvtest_boxmv_id ON mvtest_boxmv (id);
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UPDATE mvtest_boxes SET b = '(2,2),(1,1)' WHERE id = 2;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mvtest_boxmv;
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SELECT * FROM mvtest_boxmv ORDER BY id;
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DROP TABLE mvtest_boxes CASCADE;
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-- make sure that column names are handled correctly
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CREATE TABLE mvtest_v (i int, j int);
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CREATE MATERIALIZED VIEW mvtest_mv_v (ii, jj, kk) AS SELECT i, j FROM mvtest_v; -- error
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CREATE MATERIALIZED VIEW mvtest_mv_v (ii, jj) AS SELECT i, j FROM mvtest_v; -- ok
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CREATE MATERIALIZED VIEW mvtest_mv_v_2 (ii) AS SELECT i, j FROM mvtest_v; -- ok
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CREATE MATERIALIZED VIEW mvtest_mv_v_3 (ii, jj, kk) AS SELECT i, j FROM mvtest_v WITH NO DATA; -- error
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CREATE MATERIALIZED VIEW mvtest_mv_v_3 (ii, jj) AS SELECT i, j FROM mvtest_v WITH NO DATA; -- ok
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CREATE MATERIALIZED VIEW mvtest_mv_v_4 (ii) AS SELECT i, j FROM mvtest_v WITH NO DATA; -- ok
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ALTER TABLE mvtest_v RENAME COLUMN i TO x;
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INSERT INTO mvtest_v values (1, 2);
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CREATE UNIQUE INDEX mvtest_mv_v_ii ON mvtest_mv_v (ii);
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REFRESH MATERIALIZED VIEW mvtest_mv_v;
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UPDATE mvtest_v SET j = 3 WHERE x = 1;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mvtest_mv_v;
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REFRESH MATERIALIZED VIEW mvtest_mv_v_2;
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REFRESH MATERIALIZED VIEW mvtest_mv_v_3;
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REFRESH MATERIALIZED VIEW mvtest_mv_v_4;
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SELECT * FROM mvtest_v;
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SELECT * FROM mvtest_mv_v;
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SELECT * FROM mvtest_mv_v_2;
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SELECT * FROM mvtest_mv_v_3;
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SELECT * FROM mvtest_mv_v_4;
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DROP TABLE mvtest_v CASCADE;
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-- Check that unknown literals are converted to "text" in CREATE MATVIEW,
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-- so that we don't end up with unknown-type columns.
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CREATE MATERIALIZED VIEW mv_unspecified_types AS
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SELECT 42 as i, 42.5 as num, 'foo' as u, 'foo'::unknown as u2, null as n;
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\d+ mv_unspecified_types
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SELECT * FROM mv_unspecified_types;
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DROP MATERIALIZED VIEW mv_unspecified_types;
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-- make sure that create WITH NO DATA does not plan the query (bug #13907)
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create materialized view mvtest_error as select 1/0 as x; -- fail
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create materialized view mvtest_error as select 1/0 as x with no data;
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refresh materialized view mvtest_error; -- fail here
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drop materialized view mvtest_error;
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-- make sure that matview rows can be referenced as source rows (bug #9398)
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CREATE TABLE mvtest_v AS SELECT generate_series(1,10) AS a;
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CREATE MATERIALIZED VIEW mvtest_mv_v AS SELECT a FROM mvtest_v WHERE a <= 5;
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DELETE FROM mvtest_v WHERE EXISTS ( SELECT * FROM mvtest_mv_v WHERE mvtest_mv_v.a = mvtest_v.a );
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SELECT * FROM mvtest_v;
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SELECT * FROM mvtest_mv_v;
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DROP TABLE mvtest_v CASCADE;
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-- make sure running as superuser works when MV owned by another role (bug #11208)
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CREATE ROLE regress_user_mvtest;
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SET ROLE regress_user_mvtest;
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CREATE TABLE mvtest_foo_data AS SELECT i, md5(random()::text)
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FROM generate_series(1, 10) i;
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CREATE MATERIALIZED VIEW mvtest_mv_foo AS SELECT * FROM mvtest_foo_data;
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CREATE MATERIALIZED VIEW mvtest_mv_foo AS SELECT * FROM mvtest_foo_data;
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CREATE MATERIALIZED VIEW IF NOT EXISTS mvtest_mv_foo AS SELECT * FROM mvtest_foo_data;
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CREATE UNIQUE INDEX ON mvtest_mv_foo (i);
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RESET ROLE;
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REFRESH MATERIALIZED VIEW mvtest_mv_foo;
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REFRESH MATERIALIZED VIEW CONCURRENTLY mvtest_mv_foo;
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DROP OWNED BY regress_user_mvtest CASCADE;
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DROP ROLE regress_user_mvtest;
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-- make sure that create WITH NO DATA works via SPI
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BEGIN;
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CREATE FUNCTION mvtest_func()
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RETURNS void AS $$
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BEGIN
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CREATE MATERIALIZED VIEW mvtest1 AS SELECT 1 AS x;
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CREATE MATERIALIZED VIEW mvtest2 AS SELECT 1 AS x WITH NO DATA;
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END;
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$$ LANGUAGE plpgsql;
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SELECT mvtest_func();
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SELECT * FROM mvtest1;
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SELECT * FROM mvtest2;
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ROLLBACK;
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