vitaliili-db commented on PR #37631:
URL: https://github.com/apache/spark/pull/37631#issuecomment-1228950512
@cloud-fan trailing empty string is not actually a bug, it has consistent
behavior in all systems, e.g. `split("aaAbbAccA", "A")` gives same result in
all systems => `['aa', 'bb', 'cc', '']`. So were are pretty consistent here.
The only difference in absence of `limit` parameter (e.g. for migration
purposes) is how empty delimiter/regex behaves. As mentioned we might choose
either ignore regex (return original string), split and drop trailing empty
string (this PR) or do nothing and return array with trailing empty string.
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