tree 911f927fbef54b6208ca1c2b1ccb7525f353069d
parent 337f980f0073c8605ed2738186d2089a362b7f66
author Wenchen Fan <wenchen@databricks.com> 1715223381 +0800
committer Wenchen Fan <wenchen@databricks.com> 1715223381 +0800

[SPARK-48197][SQL] Avoid assert error for invalid lambda function

### What changes were proposed in this pull request?

`ExpressionBuilder` asserts all its input expressions to be resolved during lookup, which is not true as the analyzer rule `ResolveFunctions` can trigger function lookup even if the input expression contains unresolved lambda functions.

This PR updates that assert to check non-lambda inputs only, and fail earlier if the input contains lambda functions. In the future, if we use `ExpressionBuilder` to register higher-order functions, we can relax it.

### Why are the changes needed?

better error message

### Does this PR introduce _any_ user-facing change?

no, only changes error message

### How was this patch tested?

new test

### Was this patch authored or co-authored using generative AI tooling?

no

Closes #46475 from cloud-fan/minor.

Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>