olivrlee commented on code in PR #3093:
URL: https://github.com/apache/calcite/pull/3093#discussion_r1133012102
##########
linq4j/src/main/java/org/apache/calcite/linq4j/tree/Expressions.java:
##########
@@ -1198,6 +1200,26 @@ public static <T, F extends Function<? extends T>>
FunctionExpression<F> lambda(
return lambda(type, Blocks.toFunctionBlock(body), toList(parameters));
}
+ public static Expression safeExpression(Expression body){
Review Comment:
Using this block I can get it to generate an Expression with the try/catch
```
public Object[] apply(Object root0) {
return new Object[] {
(Integer) new org.apache.calcite.linq4j.function.Function0() {
public Object apply() {
try {
return
org.apache.calcite.avatica.util.DateTimeUtils.timeStringToUnixDate("12:12:11");
} catch (Exception e) {
return null;
}
}
}
};
}
```
However, in RexExecutable compile line 55 it doesn't like the cast to
integer / block : `org.codehaus.commons.compiler.CompileException: Line 3,
Column 15: Cannot cast "Reducer$1" to "java.lang.Integer"`
Any suggestions here?
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