[SPARK-21727][R] Allow multi-element atomic vector as column type in SparkR DataFrame#20352

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neilalex wants to merge 3 commits intoapache:masterfrom neilalex:neilalex-sparkr-arraytype

+53-5

Commits on Jan 22, 2018

Check if an atomic R type is actually a vector of length > 1, and treat it as an array if so.
neilalex
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Use is.atomic(object) to check type
neilalex
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Commits on Jan 23, 2018

tests for SparkR data.frame with multi-element atomic vector
neilalex
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