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This is a sub task of #3599.
concat_ws("", a, b, c) is equivalent to concat(a, b, c), which we can do this optimization in expression_simplification
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Is your feature request related to a problem or challenge? Please describe what you are trying to do.
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
(This section helps Arrow developers understand the context and why for this feature, in addition to the what)
This is a sub task of #3599.
concat_ws("", a, b, c)is equivalent toconcat(a, b, c), which we can do this optimization inexpression_simplificationDescribe the solution you'd like
A clear and concise description of what you want to happen.
Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.
Additional context
Add any other context or screenshots about the feature request here.