goldmedal commented on code in PR #11452:
URL: https://github.com/apache/datafusion/pull/11452#discussion_r1677998536
##########
datafusion/functions-array/src/planner.rs:
##########
@@ -97,6 +98,27 @@ impl ExprPlanner for ArrayFunctionPlanner {
) -> Result<PlannerResult<Vec<Expr>>> {
Ok(PlannerResult::Planned(make_array(exprs)))
}
+
+ fn plan_make_map(&self, args: Vec<Expr>) ->
Result<PlannerResult<Vec<Expr>>> {
+ if args.len() % 2 != 0 {
+ return exec_err!("make_map requires an even number of arguments");
+ }
+
+ let (keys, values): (Vec<_>, Vec<_>) = args
+ .chunks_exact(2)
+ .map(|chunk| (chunk[0].clone(), chunk[1].clone()))
+ .unzip();
+
+ let keys = make_array(keys);
+ let values = make_array(values);
Review Comment:
Hmm, okay. After some research, I believe it's not easy to move `make_array`
to `functions`. It's tied to methods in `utils.rs` and `macro.rs`. Moving all
the required methods to `functions` could make the codebase chaotic. For now, I
prefer to keep them in `functions-arrays` first. We can do it in another PR.
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