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Ebernhardson authored
Asking spark to guess a schema requires the driver to stop there and run executors until it has some rows it can guess the schema from. We know what should be there, tell spark and save some work. Change-Id: I27452d5e32451e580d7752c39301c2363bb92f3f
74dd7dfcEbernhardson authoredAsking spark to guess a schema requires the driver to stop there and run executors until it has some rows it can guess the schema from. We know what should be there, tell spark and save some work. Change-Id: I27452d5e32451e580d7752c39301c2363bb92f3f
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