diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:15:05 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:15:05 +0000 |
commit | 46651ce6fe013220ed397add242004d764fc0153 (patch) | |
tree | 6e5299f990f88e60174a1d3ae6e48eedd2688b2b /src/test/isolation/specs/total-cash.spec | |
parent | Initial commit. (diff) | |
download | postgresql-14-46651ce6fe013220ed397add242004d764fc0153.tar.xz postgresql-14-46651ce6fe013220ed397add242004d764fc0153.zip |
Adding upstream version 14.5.upstream/14.5upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/isolation/specs/total-cash.spec')
-rw-r--r-- | src/test/isolation/specs/total-cash.spec | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/isolation/specs/total-cash.spec b/src/test/isolation/specs/total-cash.spec new file mode 100644 index 0000000..d98121a --- /dev/null +++ b/src/test/isolation/specs/total-cash.spec @@ -0,0 +1,28 @@ +# Total Cash test +# +# Another famous test of snapshot isolation anomaly. +# +# Any overlap between the transactions must cause a serialization failure. + +setup +{ + CREATE TABLE accounts (accountid text NOT NULL PRIMARY KEY, balance numeric not null); + INSERT INTO accounts VALUES ('checking', 600),('savings',600); +} + +teardown +{ + DROP TABLE accounts; +} + +session s1 +setup { BEGIN ISOLATION LEVEL SERIALIZABLE; } +step wx1 { UPDATE accounts SET balance = balance - 200 WHERE accountid = 'checking'; } +step rxy1 { SELECT SUM(balance) FROM accounts; } +step c1 { COMMIT; } + +session s2 +setup { BEGIN ISOLATION LEVEL SERIALIZABLE; } +step wy2 { UPDATE accounts SET balance = balance - 200 WHERE accountid = 'savings'; } +step rxy2 { SELECT SUM(balance) FROM accounts; } +step c2 { COMMIT; } |