feat: simple field reference extended expression builder #71
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ACTION NEEDED Substrait follows the Conventional Commits The PR title and description are used as the merge commit message. Please update your PR title and description to match the specification. |
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Adds first (of many) extended expression builder functions.
columnresolves field by name and build the most common variety of a field reference expression.I've chosen to implement the function with currying.
I suspect often onle the column name will be provided by the user initially.
Base schema will be injected later on by the system whenever expression is invoked.