chore: Move remaining expressions to spark-expr crate + some minor refactoring #1165
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Which issue does this PR close?
Closes #659
Rationale for this change
This PR moves the final expressions (
NegativeExpr
,UnboundColumn
, andCheckOverflow
) to the spark-expr crate.The only expressions remaining in
core
are the bloom filter expressions, which depend on the parquet package, and subquery, which depends on JNI. I think we can leave these ones in core.What changes are included in this PR?
NegativeExpr
,UnboundColumn
, andCheckOverflow
fromcore
tospark-expr
datafusion
subpackage, so thatoperators
andexpression
are directly underexecution
(we previously had twooperators
packages)shuffle_writer
toexecution::shuffle
packageCometExpandExec
toExpandExec
for consistency with other exec namingHow are these changes tested?