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From Dave Challis <dave.chal...@aistemos.com>
Subject Re: Which perform better JSON or convert JSON to parquet format ?
Date Fri, 15 Jun 2018 08:42:36 GMT
One gotcha with JSON vs parquet is that there's a longstanding bug that
causes errors when trying to read from Parquet files containing 0 rows.

For cases where we're converting from datasets that might be empty, we use
JSON, and for everything else, Parquet.

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