33 lines
812 B
Python
33 lines
812 B
Python
# Referential Integrity test
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#
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# The assumption here is that the application code issuing the SELECT
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# to test for the presence or absence of a related record would do the
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# right thing -- this script doesn't include that logic.
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#
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# Any overlap between the transactions must cause a serialization failure.
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setup
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{
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CREATE TABLE a (i int PRIMARY KEY);
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CREATE TABLE b (a_id int);
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INSERT INTO a VALUES (1);
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}
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teardown
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{
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DROP TABLE a, b;
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}
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session s1
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setup { BEGIN ISOLATION LEVEL SERIALIZABLE; }
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step rx1 { SELECT i FROM a WHERE i = 1; }
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step wy1 { INSERT INTO b VALUES (1); }
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step c1 { COMMIT; }
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session s2
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setup { BEGIN ISOLATION LEVEL SERIALIZABLE; }
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step rx2 { SELECT i FROM a WHERE i = 1; }
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step ry2 { SELECT a_id FROM b WHERE a_id = 1; }
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step wx2 { DELETE FROM a WHERE i = 1; }
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step c2 { COMMIT; }
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