[Coral-Trino] Support hive function unix_timestamp() when translate Hive to Trino #427
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What changes are proposed in this pull request, and why are they necessary?
Support hive function unix_timestamp() when translate Hive to Trino
SELECT unix_timestamp()
->
SELECT TO_UNIXTIME(CAST(CURRENT_TIMESTAMP AS TIMESTAMP(0)))
SELECT unix_timestamp('2023-06-14 00:00:00')
->
SELECT TO_UNIXTIME(CAST(DATE_PARSE('2023-06-14 00:00:00', '%Y-%m-%d %H:%i:%s') AS TIMESTAMP(0))),
SELECT unix_timestamp('20230614','yyyyMMdd')
->
SELECT TO_UNIXTIME(CAST(DATE_PARSE('20230614', '%Y%m%d') AS TIMESTAMP(0))
#388