Mithun Radhakrishnan created HIVE-9118:
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Summary: Support auto-purge for tables, when dropping
tables/partitions.
Key: HIVE-9118
URL: https://issues.apache.org/jira/browse/HIVE-9118
Project: Hive
Issue Type: Bug
Components: Metastore
Affects Versions: 0.15.0
Reporter: Mithun Radhakrishnan
Assignee: Mithun Radhakrishnan
HIVE-7100 introduced a way to skip the trash directory, when deleting
table-data, while dropping tables.
In HIVE-9083/HIVE-9086, I extended this to work when partitions are dropped.
Here, I propose a table-parameter ({{"auto.purge"}}) to set up tables to
skip-trash when table/partition data is deleted, without needing to say "PURGE"
on the Hive CLI. Apropos, on {{dropTable()}} and {{dropPartition()}}, table
data is deleted directly (and not moved to trash) if the following hold true:
# The table is MANAGED.
# The {{deleteData}} parameter to the {{HMSC.drop*()}} methods is true.
# Either PURGE is explicitly specified on the command-line (or rather,
{{"ifPurge"}} is set in the environment context, OR
# TBLPROPERTIES contains {{"auto.purge"="true"}}
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