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Are here the best place to reset? are they the per session config, right? what happens if two tasks from different queries are scheduled to the same spark session? is it possible?
Are here the best place to reset? are they the per session config, right? what happens if two tasks from different queries are scheduled to the same spark session? is it possible?
I recall that this part of code relies on thread local storages which should make the invocations thread safe. Having said that we can still look for better choices, e.g., passing through arguments, to improve portability of the code.
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What changes were proposed in this pull request?
In parquet write, we use several local properties to pass the status in session. We need reset them after finishing write operator.
How was this patch tested?
Existing unit tests.