ihuzenko commented on a change in pull request #1854: DRILL-7373: Fix problems
involving reading from DICT type
URL: https://github.com/apache/drill/pull/1854#discussion_r324243533
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/logical/DrillOptiq.java
##########
@@ -259,15 +265,116 @@ public LogicalExpression visitCall(RexCall call) {
return SchemaPath.getSimplePath(rootSegName +
literal.getValue2().toString());
}
- final RexLiteral literal = (RexLiteral) call.getOperands().get(1);
- switch(literal.getTypeName()){
- case DECIMAL:
- case INTEGER:
- return left.getChild(((BigDecimal)literal.getValue()).intValue());
- case CHAR:
- return left.getChild(literal.getValue2().toString());
- default:
- // fall through
+ final RexLiteral literal;
+ RexNode operand = call.getOperands().get(1);
+ if (operand instanceof RexLiteral) {
+ literal = (RexLiteral) operand;
+ } else {
+ if (isMap && operand.getKind() == SqlKind.CAST) {
Review comment:
The nested ```if-else``` could be combined with outer one.
```java
if (operand instanceof RexLiteral) {
// simple cast
} else if (isMap && operand.getKind() == SqlKind.CAST){
// sql cast
} else {
// assertion error
}
```
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