24dc053659
Previously, IMMV including IMMV in its definition can be created by create_immv(), but it should not be supported by IMMV because we cannot maintain it recursively for now. This patch prevents it by raising an error for such view definition on create_immv().
23 lines
722 B
SQL
23 lines
722 B
SQL
CREATE TABLE t (i int PRIMARY KEY);
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INSERT INTO t SELECT generate_series(1, 100);
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SELECT create_immv('mv', 'SELECT * FROM t');
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SELECT create_immv(' mv2 ( x ) ', 'SELECT * FROM t WHERE i%2 = 0');
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SELECT create_immv('mv3', 'WITH d AS (DELETE FROM t RETURNING NULL) SELECT * FROM t');
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SELECT immvrelid, get_immv_def(immvrelid) FROM pg_ivm_immv ORDER BY 1;
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-- contain immv
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SELECT create_immv('mv_in_immv01', 'SELECT i FROM mv');
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SELECT create_immv('mv_in_immv02', 'SELECT t.i FROM t INNER JOIN mv2 ON t.i = mv2.x');
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DROP TABLE t;
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DROP TABLE mv;
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SELECT immvrelid, get_immv_def(immvrelid) FROM pg_ivm_immv ORDER BY 1;
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DROP TABLE mv2;
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SELECT immvrelid, get_immv_def(immvrelid) FROM pg_ivm_immv ORDER BY 1;
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DROP TABLE t;
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