grundprinzip commented on code in PR #41980:
URL: https://github.com/apache/spark/pull/41980#discussion_r1262011375
##########
python/pyspark/sql/connect/session.py:
##########
@@ -489,13 +489,31 @@ def createDataFrame(
createDataFrame.__doc__ = PySparkSession.createDataFrame.__doc__
- def sql(self, sqlQuery: str, args: Optional[Union[Dict[str, Any], List]] =
None) -> "DataFrame":
- cmd = SQL(sqlQuery, args)
- data, properties =
self.client.execute_command(cmd.command(self._client))
- if "sql_command_result" in properties:
- return
DataFrame.withPlan(CachedRelation(properties["sql_command_result"]), self)
- else:
- return DataFrame.withPlan(SQL(sqlQuery, args), self)
+ def sql(
+ self,
+ sqlQuery: str,
+ args: Optional[Union[Dict[str, Any], List]] = None,
+ **kwargs: Any,
+ ) -> "DataFrame":
+
+ if len(kwargs) > 0:
+ from pyspark.sql.connect.sql_formatter import SQLStringFormatter
+
+ formatter = SQLStringFormatter(self)
+ sqlQuery = formatter.format(sqlQuery, **kwargs)
+
+ try:
+ cmd = SQL(sqlQuery, args)
+ data, properties =
self.client.execute_command(cmd.command(self._client))
+ if "sql_command_result" in properties:
+ return
DataFrame.withPlan(CachedRelation(properties["sql_command_result"]), self)
+ else:
+ return DataFrame.withPlan(SQL(sqlQuery, args), self)
+ finally:
+ if len(kwargs) > 0:
Review Comment:
Strictly logically speaking the existing behavior is weird because it caches
the analysis result even though the view is gone. IMHO this behavior is almost
undefined but I understand that it's existing.
The current behavior almost feels like reference counting :(
TBH I think it's ok with the difference in behavior. My 2c
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