Java RelOptUtil.createDistinctRel示例

示例#1

文件： UnionToDistinctRule.java 项目： jacques-n/incubator-calcite

 public void onMatch(RelOptRuleCall call) {
   UnionRel union = call.rel(0);
   if (union.all) {
     return; // nothing to do
   }
   UnionRel unionAll = new UnionRel(union.getCluster(), union.getInputs(), true);
   call.transformTo(RelOptUtil.createDistinctRel(unionAll));
 }