Jimexist opened a new pull request #328:
URL: https://github.com/apache/arrow-datafusion/pull/328
# Which issue does this PR close?
fix 305 by using a null array as param for zero param functions
Closes #305
# Rationale for this change
in case of a zero param function we'll have a rather hacky way to pass in
the batch num_rows param so that the functions wrapped can be generative the
correct result
# What changes are included in this PR?
Similar to #307 but use a null array instead
# Are there any user-facing changes?
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