daniel-lunin-db opened a new pull request, #56902:
URL: https://github.com/apache/spark/pull/56902
`makeSQLFunctionPlan` and `makeSQLTableFunctionPlan` both pad the call-site
arguments with the trailing parameters' declared defaults using near-identical
inline logic. Extract it into `SQLFunction.padArgumentsWithDefaults` and have
both delegate to it.
The two sites differed only in that the scalar builder cast each padded
default to the parameter type while the table builder did not. That cast is
redundant: both builders re-cast every padded argument to the parameter type
immediately after, via Alias(Cast(outer, param.dataType), ...). The shared
helper returns the parsed defaults untyped and leaves that downstream cast to
do the typing, so the scalar path drops a redundant Cast with no change in
results.
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Removes the duplicated padding logic. The two sites differed only in that
the scalar
builder cast each padded default to the parameter type while the table
builder didn't —
and that cast is redundant, since both builders re-cast every padded
argument to the
parameter type immediately after via `Alias(Cast(outer, param.dataType),
...)`. The shared
helper returns the parsed defaults untyped and leaves typing to that
downstream cast.
### Why are the changes needed?
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No. Results are unchanged; the scalar path just sheds a redundant cast.
### How was this patch tested?
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Behavior-preserving extraction, covered by existing SQL UDF resolution
tests; CI compiles
and runs them.
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Generated-by: Claude Code (Anthropic Claude Opus)
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