Impala convert timestamp AM/PM
Lucid
2021-11-19T02:51:51
I have table in hive with string in 12 hrs format
in which data is appended every day. I don't have control over hive table. Need to expose as view in impala after conversion.
to_timestamp() doesn't support AM/PM format.
Do we have a better way to convert string in 12 hrs format to timestamp.
came across this function which supports AM/PM.which support ISO SQL:2016 standard patterns.
CAST(expression AS type FORMAT pattern)
impala conversion functions
This function is not supported by the impala version I am using.
The other ways I came across:
- To add 12hrs to hh:mm if it is PM.
- Convert it to 24hrs format in Hive to other table or view using unix_timestamp and have it through impala(require to expose table as view in impala)
Copyright License：
Author:「Lucid」,Reproduced under the CC 4.0 BY-SA copyright license with link to original source & disclaimer.
Link to：https://stackoverflow.com/questions/70025228/impala-convert-timestamp-am-pm
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