[Refactor](timezone) Refactor timezone docs and move it #810
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zclllyybb
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HappenLee
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Jul 4, 2024
…ezone parsing (#37062) 1. revert #25097. we decide to rely on OS. not maintain independent tzdata anymore to keep result consistency 2. refactor timezone load. removed rwlock. before: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (6.88 sec) ``` now: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (2.61 sec) ``` 3. now don't support timezone offset format string like 'UTC+8', like we already said in https://doris.apache.org/docs/dev/query/query-variables/time-zone/#usage 4. support case-insensitive timezone parsing in nereids. 5. a bug when parse timezone using nereids. should check DST by input, but wrongly by now before. now fixed. doc pr: apache/doris-website#810
zclllyybb
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Jul 4, 2024
…ezone parsing (apache#37062) 1. revert apache#25097. we decide to rely on OS. not maintain independent tzdata anymore to keep result consistency 2. refactor timezone load. removed rwlock. before: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (6.88 sec) ``` now: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (2.61 sec) ``` 3. now don't support timezone offset format string like 'UTC+8', like we already said in https://doris.apache.org/docs/dev/query/query-variables/time-zone/#usage 4. support case-insensitive timezone parsing in nereids. 5. a bug when parse timezone using nereids. should check DST by input, but wrongly by now before. now fixed. doc pr: apache/doris-website#810
zclllyybb
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Jul 4, 2024
…ezone parsing (apache#37062) 1. revert apache#25097. we decide to rely on OS. not maintain independent tzdata anymore to keep result consistency 2. refactor timezone load. removed rwlock. before: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (6.88 sec) ``` now: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (2.61 sec) ``` 3. now don't support timezone offset format string like 'UTC+8', like we already said in https://doris.apache.org/docs/dev/query/query-variables/time-zone/#usage 4. support case-insensitive timezone parsing in nereids. 5. a bug when parse timezone using nereids. should check DST by input, but wrongly by now before. now fixed. doc pr: apache/doris-website#810
yiguolei
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Jul 15, 2024
…imezone parsing (#37062) (#37269) pick #37062 1. revert #25097. we decide to rely on OS. not maintain independent tzdata anymore to keep result consistency 2. refactor timezone load. removed rwlock. before: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (6.88 sec) ``` now: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (2.61 sec) ``` 3. now don't support timezone offset format string like 'UTC+8', like we already said in https://doris.apache.org/docs/dev/query/query-variables/time-zone/#usage 4. support case-insensitive timezone parsing in nereids. 5. a bug when parse timezone using nereids. should check DST by input, but wrongly by now before. now fixed. doc pr: apache/doris-website#810
dataroaring
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Jul 17, 2024
…ezone parsing (#37062) 1. revert #25097. we decide to rely on OS. not maintain independent tzdata anymore to keep result consistency 2. refactor timezone load. removed rwlock. before: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (6.88 sec) ``` now: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (2.61 sec) ``` 3. now don't support timezone offset format string like 'UTC+8', like we already said in https://doris.apache.org/docs/dev/query/query-variables/time-zone/#usage 4. support case-insensitive timezone parsing in nereids. 5. a bug when parse timezone using nereids. should check DST by input, but wrongly by now before. now fixed. doc pr: apache/doris-website#810
xiaokang
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Jul 31, 2024
…imezone parsing (#37062) (#37270) pick #37062 1. revert #25097. we decide to rely on OS. not maintain independent tzdata anymore to keep result consistency 2. refactor timezone load. removed rwlock. before: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (6.88 sec) ``` now: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (2.61 sec) ``` 3. now don't support timezone offset format string like 'UTC+8', like we already said in https://doris.apache.org/docs/dev/query/query-variables/time-zone/#usage 4. support case-insensitive timezone parsing in nereids. 5. a bug when parse timezone using nereids. should check DST by input, but wrongly by now before. now fixed. doc pr: apache/doris-website#810
mongo360
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Dec 11, 2024
…imezone parsing (apache#37062) (apache#37270) pick apache#37062 1. revert apache#25097. we decide to rely on OS. not maintain independent tzdata anymore to keep result consistency 2. refactor timezone load. removed rwlock. before: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (6.88 sec) ``` now: ```sql mysql [optest]>select count(convert_tz(d, 'Asia/Shanghai', 'America/Los_Angeles')), count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) from dates; +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | count(convert_tz(cast(d as DATETIMEV2(6)), 'Asia/Shanghai', 'America/Los_Angeles')) | count(convert_tz(dt, 'America/Los_Angeles', '+00:00')) | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ | 16000000 | 16000000 | +-------------------------------------------------------------------------------------+--------------------------------------------------------+ 1 row in set (2.61 sec) ``` 3. now don't support timezone offset format string like 'UTC+8', like we already said in https://doris.apache.org/docs/dev/query/query-variables/time-zone/#usage 4. support case-insensitive timezone parsing in nereids. 5. a bug when parse timezone using nereids. should check DST by input, but wrongly by now before. now fixed. doc pr: apache/doris-website#810
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Remove the tzfiles come with Doris and clarify some timezone parsing restrictions.
move them from query-variables to cluster-management
code pr: apache/doris#37062