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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2019/02/17 09:48:49 UTC
[GitHub] peter-toth edited a comment on issue #23802: [SPARK-26893][SQL]
Allow partition pruning with subquery filters on file source
peter-toth edited a comment on issue #23802: [SPARK-26893][SQL] Allow partition pruning with subquery filters on file source
URL: https://github.com/apache/spark/pull/23802#issuecomment-464433188
@mgaido91 I debugged it and double execution seems expected to me. I use `checkAnswer` in my UT and it executes 2 times the query using 2 different `QueryExecution`. First `df.rdd.count()` to check RDD serializability and then a few rows later `df.collect()` to collect the results.
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