Github user sudheeshkatkam commented on a diff in the pull request:
https://github.com/apache/drill/pull/377#discussion_r53538446
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/DrillOperatorTable.java
---
@@ -45,17 +95,27 @@ public
DrillOperatorTable(FunctionImplementationRegistry registry) {
public void add(String name, SqlOperator op) {
operators.add(op);
- opMap.put(name, op);
+ opMap.put(name.toLowerCase(), op);
}
@Override
- public void lookupOperatorOverloads(SqlIdentifier opName,
SqlFunctionCategory category, SqlSyntax syntax, List<SqlOperator> operatorList)
{
- inner.lookupOperatorOverloads(opName, category, syntax, operatorList);
+ public void lookupOperatorOverloads(SqlIdentifier opName,
SqlFunctionCategory category,
+ SqlSyntax syntax, List<SqlOperator> operatorList) {
- if (operatorList.isEmpty() && syntax == SqlSyntax.FUNCTION &&
opName.isSimple()) {
- List<SqlOperator> drillOps =
opMap.get(opName.getSimple().toLowerCase());
- if (drillOps != null) {
- operatorList.addAll(drillOps);
+ final List<SqlOperator> calciteOperatorList = Lists.newArrayList();
+ SqlStdOperatorTable.instance().lookupOperatorOverloads(opName,
category, syntax, calciteOperatorList);
--- End diff --
_inner_.lookup...?
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