[Enhancement] Support Trino try expression

[KKould]

Why I'm doing:

#54268

What I'm doing:

support try expression on trino SQL dialect

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

[CLAassistant]

All committers have signed the CLA.

[starrocks-cr]

The most risky bug in this code is:
Incorrect use of LIKELY macro, which leads to incorrect logic in the evaluate_checked method.

You can modify the code like this:

StatusOr<ColumnPtr> evaluate_checked(ExprContext* context, Chunk* chunk) override {
    auto&& status = _children[0]->evaluate_checked(context, chunk);
    if (LIKELY(status.ok())) { // Corrected the condition to check if status is OK
        return status;
    }
    return ColumnHelper::create_const_null_column(chunk->num_rows());
}

[starrocks-cr]

The most risky bug in this code is:
The equals method only checks for reference equality, which may not be the intended behavior and could lead to incorrect logical comparison results.

You can modify the code like this:

@Override
public boolean equals(Object other) {
    if (this == other) return true;
    if (other == null || getClass() != other.getClass()) return false;
    TryOperator that = (TryOperator) other;
    return Objects.equals(arguments, that.arguments);
}

[starrocks-cr]

The most risky bug in this code is:
The clone method calls the TryExpr constructor with this, but there's no constructor for TryExpr that accepts a TryExpr as an argument, which will result in a compilation error.

You can modify the code like this:

@Override
public Expr clone() {
    return new TryExpr(getChild(0).clone(), pos);
}

This change correctly clones the child expression and also provides the current NodePosition.

[murphyatwork]

please test more cases, like different data types, NULL, exceptions

[KKould]

This is the only way I can currently test try expressions in starrocks.In trino, when testing cast, an error should occur, but in this case: select cast('s' as int), starrocks will return null.

Do you have any test case suggestions?

[murphyatwork]

by default SR doesn't throw exception in expression, but with setting the sql mode like set sql_mode ='ALLOW_THROW_EXCEPTION' it will throw exception

[sonarqubecloud]

Quality Gate failed

Failed conditions
16.0% Duplication on New Code (required ≤ 3%)

See analysis details on SonarQube Cloud

[github-actions]

[Java-Extensions Incremental Coverage Report]

✅ pass : 0 / 0 (0%)

[github-actions]

[BE Incremental Coverage Report]

❌ fail : 0 / 16 (00.00%)

file detail

	path	covered_line	new_line	coverage	not_covered_line_detail
🔵	be/src/exprs/expr.cpp	0	3	00.00%	[471, 472, 473]
🔵	be/src/exprs/try_expr.cpp	0	13	00.00%	[27, 29, 32, 33, 34, 35, 37, 38, 40, 43, 44, 45, 46]