NobiGo commented on a change in pull request #2559:
URL: https://github.com/apache/calcite/pull/2559#discussion_r737958944
##########
File path:
core/src/main/java/org/apache/calcite/adapter/enumerable/RexImpTable.java
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@@ -2657,6 +2664,38 @@ private static RelDataType nullifyType(JavaTypeFactory
typeFactory,
}
}
+ /** Implementor for a array concat. */
+ private static class ArrayConcatImplementor extends
AbstractRexCallImplementor {
+
+ ArrayConcatImplementor() {
+ super(NullPolicy.STRICT, false);
+ }
+
+ @Override String getVariableName() {
+ return "array_concat";
+ }
+
+ @Override Expression implementSafe(RexToLixTranslator translator, RexCall
call,
+ List<Expression> argValueList) {
+ final BlockBuilder blockBuilder = translator.getBlockBuilder();
+ final Expression list =
+ blockBuilder.append("list", Expressions.new_(ArrayList.class),
false);
Review comment:
+1
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