HanumathRao commented on a change in pull request #1425: DRILL-6647: Update
Calcite version to 1.17.0
URL: https://github.com/apache/drill/pull/1425#discussion_r212065022
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File path:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/DrillConvertletTable.java
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@@ -36,19 +37,36 @@
public static HashMap<SqlOperator, SqlRexConvertlet> map = new HashMap<>();
public static SqlRexConvertletTable INSTANCE = new DrillConvertletTable();
- private static SqlRexConvertlet sqrtConvertlet = new SqlRexConvertlet() {
- public RexNode convertCall(SqlRexContext cx, SqlCall call) {
- RexNode operand = cx.convertExpression(call.operand(0));
- return cx.getRexBuilder().makeCall(SqlStdOperatorTable.SQRT, operand);
+
+ private static final SqlRexConvertlet SQRT_CONVERTLET = (cx, call) -> {
+ RexNode operand = cx.convertExpression(call.operand(0));
+ return cx.getRexBuilder().makeCall(SqlStdOperatorTable.SQRT, operand);
+ };
+
+ // Rewrites COALESCE function into CASE WHEN IS NOT NULL operand1 THEN
operand1...
+ private static final SqlRexConvertlet COALESCE_CONVERTLET = (cx, call) -> {
+ if (call.operandCount() == 1) {
Review comment:
can you create a local variable something like argCount for
call.operandCount() and use it.
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