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

commit b2a37046c3a7b5a8cca9e6cae8b15de4b26e4acc
Author: Minghui Liu <[email protected]>
AuthorDate: Fri Jul 1 17:42:17 2022 +0800

    Linear fill is not supported in align by device query
---
 .../src/main/java/org/apache/iotdb/db/mpp/plan/analyze/Analyzer.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git 
a/server/src/main/java/org/apache/iotdb/db/mpp/plan/analyze/Analyzer.java 
b/server/src/main/java/org/apache/iotdb/db/mpp/plan/analyze/Analyzer.java
index 190a245ee1..6b3f7d0d40 100644
--- a/server/src/main/java/org/apache/iotdb/db/mpp/plan/analyze/Analyzer.java
+++ b/server/src/main/java/org/apache/iotdb/db/mpp/plan/analyze/Analyzer.java
@@ -414,8 +414,9 @@ public class Analyzer {
               }
             }
           } else if (fillComponent.getFillPolicy() == FillPolicy.LINEAR) {
+            // TODO support linear fill in align by device query
             if (queryStatement.isAlignByDevice()) {
-              throw new SemanticException("");
+              throw new SemanticException("Linear fill is not supported in 
align by device query.");
             }
 
             for (Expression fillColumn : fillColumnList) {

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