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[SPARK-6696] [SQL] Adds HiveContext.refreshTable to PySpark #5349

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[SPARK-6696] [SQL] Adds HiveContext.refreshTable to PySpark #5349

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9 changes: 9 additions & 0 deletions python/pyspark/sql/context.py
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Original file line number Diff line number Diff line change
Expand Up @@ -574,6 +574,15 @@ def _ssql_ctx(self):
def _get_hive_ctx(self):
return self._jvm.HiveContext(self._jsc.sc())

def refreshTable(self, tableName):
"""Invalidate and refresh all the cached the metadata of the given
table. For performance reasons, Spark SQL or the external data source
library it uses might cache certain metadata about a table, such as the
location of blocks. When those change outside of Spark SQL, users should
call this function to invalidate the cache.
"""
self._ssql_ctx.refreshTable(tableName)


class UDFRegistration(object):
"""Wrapper for user-defined function registration."""
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