ClickHouse/dbms/tests/queries/0_stateless/00615_nullable_alter_optimize.sql

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USE test;
DROP TABLE IF EXISTS test;
CREATE TABLE test
(
dt Date,
id Int32,
key String,
data Nullable(Int8)
) ENGINE = MergeTree(dt, (id, key, dt), 8192);
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INSERT INTO test (dt,id, key,data) VALUES ('2000-01-01', 100, 'key', 100500);
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alter table test drop column data;
alter table test add column data Nullable(Float64);
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INSERT INTO test (dt,id, key,data) VALUES ('2000-01-01', 100, 'key', 100500);
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SELECT * FROM test ORDER BY data NULLS FIRST;
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OPTIMIZE TABLE test;
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SELECT * FROM test ORDER BY data NULLS FIRST;
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DROP TABLE test;