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https://github.com/GreptimeTeam/greptimedb.git
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204b9433b8
* feat: adds date_format function * fix: compile error * chore: use system timezone for FunctionContext and EvalContext * test: as_formatted_string * test: sqlness test * chore: rename function
62 lines
1.8 KiB
SQL
62 lines
1.8 KiB
SQL
--- date_add ---
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SELECT date_add('2023-12-06 07:39:46.222'::TIMESTAMP_MS, INTERVAL '5 day');
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SELECT date_add('2023-12-06 07:39:46.222'::TIMESTAMP_MS, '5 day');
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SELECT date_add('2023-12-06'::DATE, INTERVAL '3 month 5 day');
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SELECT date_add('2023-12-06'::DATE, '3 month 5 day');
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--- date_sub ---
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SELECT date_sub('2023-12-06 07:39:46.222'::TIMESTAMP_MS, INTERVAL '5 day');
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SELECT date_sub('2023-12-06 07:39:46.222'::TIMESTAMP_MS, '5 day');
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SELECT date_sub('2023-12-06'::DATE, INTERVAL '3 month 5 day');
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SELECT date_sub('2023-12-06'::DATE, '3 month 5 day');
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--- date_format ---
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SELECT date_format('2023-12-06 07:39:46.222'::TIMESTAMP_MS, '%Y-%m-%d %H:%M:%S:%3f');
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SELECT date_format('2023-12-06 07:39:46.222'::TIMESTAMP_S, '%Y-%m-%d %H:%M:%S:%3f');
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--- datetime not supported yet ---
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SELECT date_format('2023-12-06 07:39:46.222'::DATETIME, '%Y-%m-%d %H:%M:%S:%3f');
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SELECT date_format('2023-12-06'::DATE, '%m-%d');
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--- test date functions with table rows ---
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CREATE TABLE dates(d DATE, ts timestamp time index);
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INSERT INTO dates VALUES ('1992-01-01'::DATE, 1);
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INSERT INTO dates VALUES ('1993-12-30'::DATE, 2);
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INSERT INTO dates VALUES ('2023-12-06'::DATE, 3);
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--- date_add ---
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SELECT date_add(d, INTERVAL '1 year 2 month 3 day') from dates;
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SELECT date_add(d, '1 year 2 month 3 day') from dates;
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SELECT date_add(ts, INTERVAL '1 year 2 month 3 day') from dates;
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SELECT date_add(ts, '1 year 2 month 3 day') from dates;
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--- date_sub ---
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SELECT date_sub(d, INTERVAL '1 year 2 month 3 day') from dates;
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SELECT date_sub(d, '1 year 2 month 3 day') from dates;
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SELECT date_sub(ts, INTERVAL '1 year 2 month 3 day') from dates;
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SELECT date_sub(ts, '1 year 2 month 3 day') from dates;
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--- date_format ---
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SELECT date_format(d, '%Y-%m-%d %H:%M:%S:%3f') from dates;
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SELECT date_format(ts, '%Y-%m-%d %H:%M:%S:%3f') from dates;
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DROP TABLE dates;
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