wangyum opened a new pull request, #39851:
URL: https://github.com/apache/spark/pull/39851
### What changes were proposed in this pull request?
This PR adds the expression to data type check error message.
Before This PR:
```
requirement failed: All input types must be the same except nullable,
containsNull, valueContainsNull flags. The input types found are
DecimalType(30,2)
DecimalType(35,2).
```
After this PR:
```
requirement failed: All input types must be the same except nullable,
containsNull, valueContainsNull flags. The expression is: CASE WHEN
upper(TAX_STATE#472) IN (UK,EU) THEN bround((((QTY#507 * ITEM_PRICE#506) +
coalesce(ITEM_SALES_TAX_AMT#510, 0.00)) / QTY#507), 2) ELSE cast(ITEM_PRICE#506
as decimal(35,2)) END. The input types found are
DecimalType(30,2)
DecimalType(35,2).
```
### Why are the changes needed?
Enhance error message.
### Does this PR introduce _any_ user-facing change?
No.
### How was this patch tested?
Manual testing.
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