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Use _dyn and _scalar_dyn for operations like, ilike, nlike, and nilike to support Dictionary and LargeStringArray #5222

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snmvaughan opened this issue Feb 9, 2023 · 0 comments
Open

Use _dyn and _scalar_dyn for operations like, ilike, nlike, and nilike to support Dictionary and LargeStringArray #5222

snmvaughan opened this issue Feb 9, 2023 · 0 comments
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enhancement New feature or request

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@snmvaughan
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Is your feature request related to a problem or challenge? Please describe what you are trying to do.

DataFusion doesn't allow Dictionaries or LargeStringArrays in like comparison operations. This functionality is already included in Arrow.

Describe the solution you'd like

Arrow provides operations on StringArray / LargeStringArray, or DictionaryArray with values StringArray / LargeStringArray, with support for comparisons against another array or a scalar. The current Like implementation doesn't support all of these combinations. In addition, the check in the physical expressions doesn't use coercion rules when validating the request.
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