Maciej Bryński created SPARK-22029:
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Summary: Cache of _parse_datatype_json_string function
Key: SPARK-22029
URL: https://issues.apache.org/jira/browse/SPARK-22029
Project: Spark
Issue Type: Sub-task
Components: PySpark
Affects Versions: 2.2.0
Reporter: Maciej Bryński
_parse_datatype_json_string is called many times with the same arguments.
Cacheing this calls can dramatically speed up pyspark code execution (up to 20%)
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