diff --git a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/sql/ast/CountDevice.java b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/sql/ast/CountDevice.java
index b6c1dc91a9ee..7127ec55d6bc 100644
--- a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/sql/ast/CountDevice.java
+++ b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/sql/ast/CountDevice.java
@@ -22,14 +22,12 @@
 import org.apache.iotdb.commons.schema.column.ColumnHeader;
 import org.apache.iotdb.db.queryengine.common.header.DatasetHeader;
 import org.apache.iotdb.db.queryengine.plan.relational.analyzer.Analysis;
-import org.apache.iotdb.db.queryengine.plan.relational.sql.util.QueryUtil;
 
 import org.apache.tsfile.enums.TSDataType;
 import org.apache.tsfile.read.common.block.TsBlock;
 import org.apache.tsfile.read.common.block.TsBlockBuilder;
 
 import java.util.Collections;
-import java.util.Optional;
 
 public class CountDevice extends AbstractQueryDeviceWithCache {
 
diff --git a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/sql/ast/ShowDevice.java b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/sql/ast/ShowDevice.java
index 5df396b699c6..dbefd4b722a1 100644
--- a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/sql/ast/ShowDevice.java
+++ b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/sql/ast/ShowDevice.java
@@ -23,14 +23,11 @@
 import org.apache.iotdb.db.queryengine.common.header.DatasetHeader;
 import org.apache.iotdb.db.queryengine.execution.operator.schema.source.TableDeviceQuerySource;
 import org.apache.iotdb.db.queryengine.plan.relational.analyzer.Analysis;
-import org.apache.iotdb.db.queryengine.plan.relational.sql.util.QueryUtil;
 
 import org.apache.tsfile.read.common.block.TsBlock;
 import org.apache.tsfile.read.common.block.TsBlockBuilder;
 
-import java.util.Collections;
 import java.util.Objects;
-import java.util.Optional;
 import java.util.stream.Collectors;
 
 public class ShowDevice extends AbstractQueryDeviceWithCache {