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

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SQL

# name: test/sql/setops/union_pipeline.test
# description: Test union pipelines
# group: [setops]
query I
SELECT COUNT(*) FROM (SELECT * FROM range(1000000) tbl(i) UNION ALL SELECT * FROM range(1000000) tbl(i)) tbl(i)
----
2000000
statement ok
CREATE TABLE t1 AS SELECT COUNT(*) FROM (SELECT * FROM range(1000000) tbl(i) UNION ALL SELECT * FROM range(1000000) tbl(i)) tbl(i)
query I
SELECT * FROM t1
----
2000000
query I
SELECT COUNT(*) FROM (SELECT * FROM range(1000000) tbl(i) UNION ALL SELECT * FROM range(1000000) tbl(i) UNION ALL SELECT * FROM range(1000000) tbl(i) UNION ALL SELECT * FROM range(1000000) tbl(i) UNION ALL SELECT * FROM range(1000000) tbl(i)) tbl(i)
----
5000000