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13 lines
554 B
XML
13 lines
554 B
XML
<test>
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<create_query>
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CREATE TABLE test_lc (x UInt64, lc LowCardinality(Nullable(String))) ENGINE = MergeTree order by x
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</create_query>
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<fill_query>INSERT INTO test_lc SELECT number, number % 10 ? NULL : toString(number % 10000) FROM numbers(1e7)</fill_query>
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<query>SELECT isNullable(lc) FROM test_lc FORMAT Null</query>
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<query>SELECT isConstant(lc) FROM test_lc FORMAT Null</query>
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<query>SELECT isNull(lc) FROM test_lc FORMAT Null</query>
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<query>SELECT isNotNull(lc) FROM test_lc FORMAT Null</query>
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</test>
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