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email-tracker/external/duckdb/test/sql/update/test_cascading_updates.test
2025-10-24 19:21:19 -05:00

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SQL

# name: test/sql/update/test_cascading_updates.test
# description: Test many different updates
# group: [update]
load __TEST_DIR__/cascading_updates.db
statement ok
SET default_null_order='nulls_first';
statement ok
SET immediate_transaction_mode=true
statement ok con1
BEGIN
statement ok
CREATE TABLE integers(id INTEGER, val INTEGER);
statement ok
INSERT INTO integers SELECT i, i FROM range(10000) t(i)
statement ok
PRAGMA checkpoint_threshold='1GB'
statement ok
UPDATE integers SET val=val+1000000 WHERE id=1
statement ok con2
BEGIN
statement ok
UPDATE integers SET val=val+1000000 WHERE id=2
statement ok con3
BEGIN
statement ok
UPDATE integers SET val=val+1000000 WHERE id=3
statement ok con1
COMMIT
query I
SELECT COUNT(*) FROM integers WHERE val>1000000
----
3
# we cannot checkpoint because con2/con3 rely on older changes
statement error
CHECKPOINT
----
Cannot CHECKPOINT
# after committing, we can checkpoint
statement ok con2
COMMIT
statement ok con3
COMMIT
# even if con2 is active, we can still checkpoint
statement ok con2
BEGIN
statement ok
CHECKPOINT
query I
SELECT COUNT(*) FROM integers WHERE val>1000000
----
3