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# name: test/sql/parallelism/interquery/concurrent_reads_while_appending_nulls.test_slow
# description: Test concurrent reads while appending NULL values
# group: [interquery]
statement ok
CREATE TABLE integers(i INTEGER)
statement ok
INSERT INTO integers SELECT * FROM range(10000);
concurrentloop threadid 0 20
loop i 0 20
onlyif threadid=0
statement ok
INSERT INTO integers SELECT CASE WHEN i%2=0 THEN NULL ELSE i END FROM range(100) t(i);
endloop
loop i 0 200
skipif threadid=0
query III
SELECT COUNT(*)>=10000 AND COUNT(*)<=12000,
COUNT(i) >= 10000 AND COUNT(i) <= 11000,
SUM(i)>= 49995000 AND SUM(i) <= 50094000 FROM integers;
----
true true true
endloop
endloop
query III
SELECT COUNT(*), COUNT(i), SUM(i) FROM integers
----
12000 11000 50045000
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