feat: External UDF support STAGE_LOCATION param #18833
Merged
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Summary
External UDF supports passing STAGE_LOCATION as a parameter
This PR introduces a new DataType::StageLocation for passing STAGE_LOCATION
When resolving_udf_server, the parameters of type StageLocation are collected and passed to databend_udf as the value of Header: databend-stage-mapping (StageLocation is not passed as a parameter to UDF).
databendlabs/databend-udf#14
Added Expr::StageLocation for passing StageLocation as a Function parameter
Example:
udf_server example
Tests
Type of change
This change is