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~drizzle-trunk/drizzle/development 

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A
CREATE TABLE t1 (a int);
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
INSERT INTO t1 values (1);
B
SET SESSION TRANSACTION ISOLATION LEVEL READ COMMITTED;
BEGIN;
SELECT * from t1;
a
A
INSERT INTO t1 values (2);
B
SELECT * from t1;
a
COMMIT;
BEGIN;
SELECT * FROM t1;
a
A
COMMIT;
B
SELECT * from t1 order by a;
a
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2
COMMIT;
BEGIN;
SELECT * from t1 order by a;
a
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2
DROP TABLE t1;