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chore: forgot null type
Signed-off-by: Dennis Zhuang <[email protected]>
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‎tests/cases/standalone/common/types/null/null_handling.result‎

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-- Migrated from DuckDB test: test/sql/types/null/test_null.test
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-- Test NULL value handling across different contexts
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-- Test NULL in basic operations
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CREATE TABLE null_test(i INTEGER, s VARCHAR, ts TIMESTAMP TIME INDEX);
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Affected Rows: 0
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INSERT INTO null_test VALUES
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(1, 'hello', 1000),
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(NULL, 'world', 2000),
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(3, NULL, 3000),
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(NULL, NULL, 4000);
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Affected Rows: 4
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-- Test NULL comparisons
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SELECT i, s FROM null_test WHERE i IS NULL ORDER BY ts;
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+---+-------+
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| i | s |
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+---+-------+
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| | world |
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| | |
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+---+-------+
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SELECT i, s FROM null_test WHERE i IS NOT NULL ORDER BY ts;
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+---+-------+
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| i | s |
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+---+-------+
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| 1 | hello |
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| 3 | |
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+---+-------+
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SELECT i, s FROM null_test WHERE s IS NULL ORDER BY ts;
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+---+---+
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| i | s |
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+---+---+
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| 3 | |
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| | |
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+---+---+
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SELECT i, s FROM null_test WHERE s IS NOT NULL ORDER BY ts;
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+---+-------+
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| i | s |
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+---+-------+
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| 1 | hello |
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| | world |
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+---+-------+
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-- Test NULL in arithmetic
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SELECT i, i + 1, i * 2, i - 5 FROM null_test ORDER BY ts;
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+---+------------------------+------------------------+------------------------+
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| i | null_test.i + Int64(1) | null_test.i * Int64(2) | null_test.i - Int64(5) |
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+---+------------------------+------------------------+------------------------+
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| 1 | 2 | 2 | -4 |
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| | | | |
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| 3 | 4 | 6 | -2 |
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| | | | |
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+---+------------------------+------------------------+------------------------+
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-- Test NULL in string operations
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SELECT s, CONCAT(s, ' test'), UPPER(s), LENGTH(s) FROM null_test ORDER BY ts;
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+-------+-----------------------------------+--------------------+-------------------------------+
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| s | concat(null_test.s,Utf8(" test")) | upper(null_test.s) | character_length(null_test.s) |
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+-------+-----------------------------------+--------------------+-------------------------------+
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| hello | hello test | HELLO | 5 |
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| world | world test | WORLD | 5 |
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| | test | | |
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| | test | | |
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+-------+-----------------------------------+--------------------+-------------------------------+
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-- Test NULL with COALESCE
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SELECT i, s, COALESCE(i, -1), COALESCE(s, 'missing') FROM null_test ORDER BY ts;
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+---+-------+---------------------------------+---------------------------------------+
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| i | s | coalesce(null_test.i,Int64(-1)) | coalesce(null_test.s,Utf8("missing")) |
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+---+-------+---------------------------------+---------------------------------------+
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| 1 | hello | 1 | hello |
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| | world | -1 | world |
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| 3 | | 3 | missing |
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| | | -1 | missing |
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+---+-------+---------------------------------+---------------------------------------+
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-- Test NULL in aggregates
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SELECT COUNT(*), COUNT(i), COUNT(s) FROM null_test;
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+----------+--------------------+--------------------+
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| count(*) | count(null_test.i) | count(null_test.s) |
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+----------+--------------------+--------------------+
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| 4 | 2 | 2 |
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+----------+--------------------+--------------------+
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SELECT SUM(i), AVG(i), MAX(i), MIN(i) FROM null_test;
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+------------------+------------------+------------------+------------------+
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| sum(null_test.i) | avg(null_test.i) | max(null_test.i) | min(null_test.i) |
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+------------------+------------------+------------------+------------------+
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| 4 | 2.0 | 3 | 1 |
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+------------------+------------------+------------------+------------------+
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-- Test NULL in CASE expressions
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SELECT i, s,
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CASE
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WHEN i IS NULL THEN 'no number'
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WHEN i > 2 THEN 'big number'
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ELSE 'small number'
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END as category
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FROM null_test ORDER BY ts;
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+---+-------+--------------+
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| i | s | category |
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+---+-------+--------------+
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| 1 | hello | small number |
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| | world | no number |
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| 3 | | big number |
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| | | no number |
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+---+-------+--------------+
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-- Test NULL in GROUP BY
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SELECT i, COUNT(*) FROM null_test GROUP BY i ORDER BY i;
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+---+----------+
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| i | count(*) |
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+---+----------+
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| 1 | 1 |
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| 3 | 1 |
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| | 2 |
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+---+----------+
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SELECT s, COUNT(*) FROM null_test GROUP BY s ORDER BY s;
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+-------+----------+
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| s | count(*) |
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+-------+----------+
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| hello | 1 |
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| world | 1 |
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| | 2 |
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+-------+----------+
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-- Test NULLIF function
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SELECT i, NULLIF(i, 1) FROM null_test ORDER BY ts;
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+---+------------------------------+
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| i | nullif(null_test.i,Int64(1)) |
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+---+------------------------------+
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| 1 | |
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| | |
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| 3 | 3 |
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| | |
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+---+------------------------------+
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SELECT s, NULLIF(s, 'hello') FROM null_test ORDER BY ts;
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+-------+-----------------------------------+
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| s | nullif(null_test.s,Utf8("hello")) |
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+-------+-----------------------------------+
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| hello | |
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| world | world |
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| | |
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| | |
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+-------+-----------------------------------+
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DROP TABLE null_test;
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Affected Rows: 0
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‎tests/cases/standalone/common/types/null/null_handling.sql‎

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-- Migrated from DuckDB test: test/sql/types/null/test_null.test
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-- Test NULL value handling across different contexts
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-- Test NULL in basic operations
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CREATE TABLE null_test(i INTEGER, s VARCHAR, ts TIMESTAMP TIME INDEX);
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INSERT INTO null_test VALUES
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(1, 'hello', 1000),
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(NULL, 'world', 2000),
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(3, NULL, 3000),
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(NULL, NULL, 4000);
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-- Test NULL comparisons
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SELECT i, s FROM null_test WHERE i IS NULL ORDER BY ts;
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SELECT i, s FROM null_test WHERE i IS NOT NULL ORDER BY ts;
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SELECT i, s FROM null_test WHERE s IS NULL ORDER BY ts;
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SELECT i, s FROM null_test WHERE s IS NOT NULL ORDER BY ts;
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-- Test NULL in arithmetic
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SELECT i, i + 1, i * 2, i - 5 FROM null_test ORDER BY ts;
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-- Test NULL in string operations
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SELECT s, CONCAT(s, ' test'), UPPER(s), LENGTH(s) FROM null_test ORDER BY ts;
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-- Test NULL with COALESCE
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SELECT i, s, COALESCE(i, -1), COALESCE(s, 'missing') FROM null_test ORDER BY ts;
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-- Test NULL in aggregates
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SELECT COUNT(*), COUNT(i), COUNT(s) FROM null_test;
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SELECT SUM(i), AVG(i), MAX(i), MIN(i) FROM null_test;
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-- Test NULL in CASE expressions
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SELECT i, s,
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CASE
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WHEN i IS NULL THEN 'no number'
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WHEN i > 2 THEN 'big number'
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ELSE 'small number'
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END as category
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FROM null_test ORDER BY ts;
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-- Test NULL in GROUP BY
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SELECT i, COUNT(*) FROM null_test GROUP BY i ORDER BY i;
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SELECT s, COUNT(*) FROM null_test GROUP BY s ORDER BY s;
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-- Test NULLIF function
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SELECT i, NULLIF(i, 1) FROM null_test ORDER BY ts;
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SELECT s, NULLIF(s, 'hello') FROM null_test ORDER BY ts;
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DROP TABLE null_test;

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