84 lines
1.9 KiB
SQL
84 lines
1.9 KiB
SQL
--
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-- CREATE_VIEW1
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-- Virtual class definitions
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-- (this also tests the query rewrite system)
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--
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-- Enforce use of COMMIT instead of 2PC for temporary objects
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CREATE VIEW street AS
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SELECT r.name, r.thepath, c.cname AS cname
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FROM ONLY road r, real_city c
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WHERE c.outline ## r.thepath;
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CREATE VIEW iexit AS
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SELECT ih.name, ih.thepath,
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interpt_pp(ih.thepath, r.thepath) AS exit
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FROM ihighway ih, ramp r
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WHERE ih.thepath ## r.thepath;
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CREATE VIEW toyemp AS
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SELECT name, age, location, 12*salary AS annualsal
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FROM emp;
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-- Test comments
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COMMENT ON VIEW noview IS 'no view';
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COMMENT ON VIEW toyemp IS 'is a view';
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COMMENT ON VIEW toyemp IS NULL;
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--
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-- CREATE OR REPLACE VIEW
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--
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CREATE TABLE viewtest_tbl (a int, b int);
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COPY viewtest_tbl FROM stdin;
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5 10
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10 15
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15 20
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20 25
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\.
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CREATE OR REPLACE VIEW viewtest AS
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SELECT * FROM viewtest_tbl;
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CREATE OR REPLACE VIEW viewtest AS
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SELECT * FROM viewtest_tbl WHERE a > 10;
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SELECT * FROM viewtest ORDER BY a;
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CREATE OR REPLACE VIEW viewtest AS
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SELECT a, b FROM viewtest_tbl WHERE a > 5 ORDER BY b DESC;
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SELECT * FROM viewtest ORDER BY a;
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-- should fail
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CREATE OR REPLACE VIEW viewtest AS
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SELECT a FROM viewtest_tbl WHERE a <> 20;
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-- should fail
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CREATE OR REPLACE VIEW viewtest AS
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SELECT 1, * FROM viewtest_tbl;
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-- should fail
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CREATE OR REPLACE VIEW viewtest AS
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SELECT a, b::numeric FROM viewtest_tbl;
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-- should work
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CREATE OR REPLACE VIEW viewtest AS
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SELECT a, b, 0 AS c FROM viewtest_tbl;
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DROP SCHEMA IF EXISTS test_schema CASCADE;
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CREATE SCHEMA test_schema;
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CREATE OPERATOR test_schema.-(rightarg = int1, procedure = int1um);
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CREATE OPERATOR test_schema.~(leftarg = int1, procedure = int1up);
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set current_schema to 'test_schema';
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CREATE VIEW test as select -(1::tinyint) as "arg1", (1::tinyint)~ as "arg2";
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SELECT * FROM test;
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RESET current_schema;
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DROP SCHEMA IF EXISTS test_schema CASCADE;
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-- test error message
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DROP TABLE viewtest;
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DROP VIEW viewtest;
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DROP TABLE viewtest_tbl;
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