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The query_compiler.merge reconstructs the Right dataframe from its partitions for every partition of Left Dataframe, The concat operation results in higher memory consumption when the size of right dataframe is large.
A possible option is to combine the right Dataframe partitions to a single partition dataframe by calling a remote function. This single partiotion dataframe is then passed to each partition of left dataframe thus avoiding the reconstruction in every worker while doing merge.
The text was updated successfully, but these errors were encountered:
The query_compiler.merge reconstructs the Right dataframe from its partitions for every partition of Left Dataframe, The concat operation results in higher memory consumption when the size of right dataframe is large.
A possible option is to combine the right Dataframe partitions to a single partition dataframe by calling a remote function. This single partiotion dataframe is then passed to each partition of left dataframe thus avoiding the reconstruction in every worker while doing merge.
The text was updated successfully, but these errors were encountered: