[iotdb] 03/14: add error message

[hui]

This is an automated email from the ASF dual-hosted git repository.

hui pushed a commit to branch lmh/aggrOpRefactor
in repository https://gitbox.apache.org/repos/asf/iotdb.git

commit 996901eb53fbd87a48721f6f8cb5519f88e448e6
Author: Minghui Liu <liuminghui...@foxmail.com>
AuthorDate: Mon Jul 4 20:16:12 2022 +0800

    add error message
---
 .../mpp/execution/operator/source/SeriesAggregationScanOperator.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git 
a/server/src/main/java/org/apache/iotdb/db/mpp/execution/operator/source/SeriesAggregationScanOperator.java
 
b/server/src/main/java/org/apache/iotdb/db/mpp/execution/operator/source/SeriesAggregationScanOperator.java
index bd46896174..06b4878d2b 100644
--- 
a/server/src/main/java/org/apache/iotdb/db/mpp/execution/operator/source/SeriesAggregationScanOperator.java
+++ 
b/server/src/main/java/org/apache/iotdb/db/mpp/execution/operator/source/SeriesAggregationScanOperator.java
@@ -109,7 +109,8 @@ public class SeriesAggregationScanOperator implements 
DataSourceOperator {
               null,
               ascending);
     } else {
-      throw new UnsupportedOperationException("");
+      throw new IllegalArgumentException(
+          "The seriesPath should be MeasurementPath or AlignedPath.");
     }
 
     this.aggregators = aggregators;