lipzhu commented on issue #24472: [SPARK-27578][SQL] Support INTERVAL ... HOUR TO SECOND syntax URL: https://github.com/apache/spark/pull/24472#issuecomment-498130745 @gatorsmile Just as I list before. Postgresql/Teradata/SQL Server have fully support of below interval functions. `Postgresql`https://github.com/postgres/postgres/blob/df1a699e5ba3232f373790b2c9485ddf720c4a70/src/test/regress/sql/interval.sql#L180-L203 `Teradata`https://docs.teradata.com/reader/S0Fw2AVH8ff3MDA0wDOHlQ/KdCtT3pYFo~_enc8~kGKVw `SqlServer`https://docs.microsoft.com/en-us/sql/odbc/reference/appendixes/interval-literals?view=sql-server-2017 - interval ... year to month - interval ... day to hour - interval ... day to minute - interval ... day to second - interval ... hour to minute - interval ... minute to second ... The other DB engines - Hive/ORACLE are partial support the interval functions I list. - DB2/MySQL are totally not supported.
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