Similar to expressions and accumulators, this ticket will expose a new registration macro for functions and their associated parser.
The registered parser should return an instance of a class which holds the following:
- Window definition
- Parsed input expression
- Additional function-specific arguments (e.g. 'default' for $shift)
- Factory methods capable of producing executable window function state. Note that the window function state is not built (at the time of this ticket) so a placeholder may be fine.
- causes
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SERVER-55180 Remove StringData <=> std::string_view implicit conversions
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- Closed
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- is duplicated by
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SERVER-54163 Error on bounded windows without an explicit sortBy field
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- Closed
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- Closed
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- Closed
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- Closed
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