Maxim Gekk created SPARK-29384:
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Summary: Support `ago` in interval strings
Key: SPARK-29384
URL: https://issues.apache.org/jira/browse/SPARK-29384
Project: Spark
Issue Type: Sub-task
Components: SQL
Affects Versions: 3.0.0
Reporter: Maxim Gekk
PostgreSQL allow to specify direction in interval string by the `ago` word:
{code}
maxim=# select interval '@ 1 year 2 months 3 days 14 seconds ago';
interval
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-1 years -2 mons -3 days -00:00:14
{code}
See
https://www.postgresql.org/docs/current/datatype-datetime.html#DATATYPE-INTERVAL-INPUT
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