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Push down logical zero-or-one checks to Spark #115

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ghislainfourny opened this issue Nov 20, 2018 · 0 comments

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ghislainfourny commented Nov 20, 2018 •

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We should push down to Spark the checks that there is at most one item whenever it applies:

zero-or-one(json-file("file.json").field)

json-file("file.json").field + 3

json-file("file.json").field || "foo"

if(json-file("file.json").field) then... else ...

In other words, the checks should be done without ever collecting the whole RDD.

ghislainfourny added the Enhancement label

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