[Enhancement] Convert the constant value to target type while making kudu predicate.

[Jcnessss]

Why I'm doing:

For now, the following fails.
select * from (select cast(coin_num as varchar) tmp from kudu.user_3) where tmp = '145';
The error showed below:
coin_num's type isn't [Type: string, Type: varchar], it's double`
The error is raised by Kudu client, it builds the predicate by the type of the literal value we passed in. For this sql, we passed a string '145' but the column type is actually a double, so the error occurred.

What I'm doing:

Cast the constant operator to the target type to get the correct literal value while building the kudu predicate.

Fixes #issue

What type of PR is this:

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Does this PR entail a change in behavior?

• Yes, this PR will result in a change in behavior.
• No, this PR will not result in a change in behavior.

If yes, please specify the type of change:

• Interface/UI changes: syntax, type conversion, expression evaluation, display information
• Parameter changes: default values, similar parameters but with different default values
• Policy changes: use new policy to replace old one, functionality automatically enabled
• Feature removed
• Miscellaneous: upgrade & downgrade compatibility, etc.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function
• This is a backport pr

Bugfix cherry-pick branch check:

• I have checked the version labels which the pr will be auto-backported to the target branch
  • 3.4
  • 3.3
  • 3.2
  • 3.1
  • 3.0

[starrocks-cr]

The most risky bug in this code is:
The updated castTo operation assumes that all ScalarOperator objects are of type ConstantOperator, which can lead to a ClassCastException if any operator is not a ConstantOperator.

You can modify the code like this:

@@ -103,7 +105,14 @@ public List<KuduPredicate> visitBinaryPredicate(BinaryPredicateOperator operator
         if (columnName == null) {
             return Lists.newArrayList();
         }
-        Object literal = getLiteral(operator.getChild(1));
+        ColumnSchema column = schema.getColumn(columnName);
+        Type targetType = ColumnTypeConverter.fromKuduType(column);
+        ScalarOperator childOperator = operator.getChild(1);
+        Optional<ConstantOperator> casted = Optional.empty();
+        if (childOperator instanceof ConstantOperator) {
+            casted = ((ConstantOperator) childOperator).castTo(targetType);
+        }
+        Object literal = getLiteral(casted.isPresent() ? casted.get() : childOperator);
         if (literal == null) {
             return Lists.newArrayList();
         }
@@ -137,10 +145,19 @@ public List<KuduPredicate> visitInPredicate(InPredicateOperator operator, Void c
         if (columnName == null) {
             return Lists.newArrayList();
         }
+        ColumnSchema column = schema.getColumn(columnName);
+        Type targetType = ColumnTypeConverter.fromKuduType(column);
+
         List<ScalarOperator> valuesOperatorList = operator.getListChildren();
+        List<Optional<ConstantOperator>> castedValues = valuesOperatorList.stream()
+                .map(op -> op instanceof ConstantOperator ? ((ConstantOperator) op).castTo(targetType) : Optional.empty())
+                .collect(Collectors.toList());
         List<Object> literalValues = new ArrayList<>(valuesOperatorList.size());
-        for (ScalarOperator valueOperator : valuesOperatorList) {
-            Object literal = getLiteral(valueOperator);
+        for (int i = 0; i < valuesOperatorList.size(); i++) {
+            ScalarOperator valueOperator = valuesOperatorList.get(i);
+            Object literal;
+            if (valueOperator instanceof ConstantOperator && castedValues.get(i).isPresent()) {
+                literal = getLiteral(castedValues.get(i).get());
+            } else {
+                literal = getLiteral(valueOperator);
+            }
             if (literal == null) {
                 return Lists.newArrayList();
             }

[sonarcloud]

Quality Gate failed

Failed conditions
C Reliability Rating on New Code (required ≥ A)

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