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justinchen pushed a commit to branch clean
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/clean by this push:
     new 85ead0ac3c5 ref
85ead0ac3c5 is described below

commit 85ead0ac3c56c5274c664f4f0d09a7a9164f3e54
Author: Caideyipi <[email protected]>
AuthorDate: Fri Jan 9 09:52:07 2026 +0800

    ref
---
 .../org/apache/iotdb/db/it/IoTDBLoadTsFileIT.java  |  2 +-
 .../org/apache/iotdb/db/it/IoTDBRestServiceIT.java |  2 +-
 .../org/apache/iotdb/db/it/IoTDBSimpleQueryIT.java | 24 +++++++++----------
 .../db/it/IoTDBSyntaxConventionIdentifierIT.java   | 22 ++++++++---------
 .../org/apache/iotdb/db/it/auth/IoTDBAuthIT.java   |  4 ++--
 .../iotdb/db/it/auth/IoTDBSeriesPermissionIT.java  |  4 ++--
 .../iotdb/db/it/auth/IoTDBSystemPermissionIT.java  |  2 +-
 .../db/it/auth/IoTDBTemplatePermissionIT.java      |  6 ++---
 .../org/apache/iotdb/db/it/cq/IoTDBCQExecIT.java   | 22 ++++++++---------
 .../apache/iotdb/db/it/cq/IoTDBCQExecInNsIT.java   | 26 ++++++++++----------
 .../apache/iotdb/db/it/cq/IoTDBCQExecInUsIT.java   | 22 ++++++++---------
 .../java/org/apache/iotdb/db/it/cq/IoTDBCQIT.java  | 28 +++++++++++-----------
 .../db/it/udf/IoTDBUDTFBuiltinFunctionIT.java      | 16 ++++++-------
 .../java/org/apache/iotdb/session/SessionTest.java |  2 +-
 .../java/org/apache/iotdb/session/TabletTest.java  |  2 +-
 .../org/apache/iotdb/commons/path/PartialPath.java |  2 +-
 16 files changed, 93 insertions(+), 93 deletions(-)

diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBLoadTsFileIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBLoadTsFileIT.java
index 5adb94f7c20..d4b03317c3d 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBLoadTsFileIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBLoadTsFileIT.java
@@ -1091,7 +1091,7 @@ public class IoTDBLoadTsFileIT {
       statement.execute(String.format("load \"%s\" ", file.getAbsolutePath()));
 
       try (final ResultSet resultSet =
-          statement.executeQuery("select count(*) from root.sg.** group by 
level=1,2")) {
+          statement.executeQuery("select count(*) from root.db.** group by 
level=1,2")) {
         if (resultSet.next()) {
           final long sgCount = resultSet.getLong("count(root.db.test_0.*.*)");
           Assert.assertEquals(writtenPoint, sgCount);
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBRestServiceIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBRestServiceIT.java
index 4821b6ba239..7c7ab7fd0f2 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBRestServiceIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBRestServiceIT.java
@@ -836,7 +836,7 @@ public class IoTDBRestServiceIT {
       List<Object> expressions =
           new ArrayList<Object>() {
             {
-              add("root.sg25.s3");
+              add("root.db25.s3");
               add("root.sg25.s4");
               add("root.sg25.s5");
               add("root.sg25.s6");
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSimpleQueryIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSimpleQueryIT.java
index 740085f3bc4..80c3983ff63 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSimpleQueryIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSimpleQueryIT.java
@@ -557,12 +557,12 @@ public class IoTDBSimpleQueryIT {
       statement.execute("CREATE TIMESERIES root.db1.d0.s7 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
       statement.execute("CREATE TIMESERIES root.db1.d0.s8 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
       statement.execute("CREATE TIMESERIES root.db1.d0.s9 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s10 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s10 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
 
       statement.execute("flush");
 
       int count = 0;
-      try (ResultSet resultSet = statement.executeQuery("show timeseries 
root.sg1.**")) {
+      try (ResultSet resultSet = statement.executeQuery("show timeseries 
root.db1.**")) {
         while (resultSet.next()) {
           count++;
         }
@@ -580,16 +580,16 @@ public class IoTDBSimpleQueryIT {
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
       statement.setFetchSize(10);
-      statement.execute("CREATE DATABASE root.sg1");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s1 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s2 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s3 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s4 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s5 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s6 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s7 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s8 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s9 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE DATABASE root.db1");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s1 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s2 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s3 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s4 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s5 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s6 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s7 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s8 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s9 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
       statement.execute("CREATE TIMESERIES root.sg1.d0.s10 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
 
       statement.execute("flush");
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSyntaxConventionIdentifierIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSyntaxConventionIdentifierIT.java
index 76d52a8fdcb..1c9712f39a6 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSyntaxConventionIdentifierIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSyntaxConventionIdentifierIT.java
@@ -409,19 +409,19 @@ public class IoTDBSyntaxConventionIdentifierIT {
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
       statement.execute("CREATE TIMESERIES root.db1.d1.`1` INT32");
-      statement.execute("CREATE TIMESERIES root.sg1.d1.`a.b` INT32");
-      statement.execute("CREATE TIMESERIES root.sg1.d1.`a.``b` INT32");
-      statement.execute("CREATE TIMESERIES root.sg1.d1.text TEXT");
+      statement.execute("CREATE TIMESERIES root.db1.d1.`a.b` INT32");
+      statement.execute("CREATE TIMESERIES root.db1.d1.`a.``b` INT32");
+      statement.execute("CREATE TIMESERIES root.db1.d1.text TEXT");
       int pointCnt = 3;
       for (int i = 0; i < pointCnt; i++) {
         statement.execute(
             String.format(
-                "insert into root.sg1.d1(time,%s,%s,%s) values(%d,%d,%d,%d)",
+                "insert into root.db1.d1(time,%s,%s,%s) values(%d,%d,%d,%d)",
                 "`1`", "`a.b`", "`a.``b`", i, i, i, i));
       }
 
       int cnt = 0;
-      try (ResultSet resultSet = statement.executeQuery("SELECT `1` + 1 FROM 
root.sg1.d1")) {
+      try (ResultSet resultSet = statement.executeQuery("SELECT `1` + 1 FROM 
root.db1.d1")) {
         while (resultSet.next()) {
           cnt++;
         }
@@ -430,7 +430,7 @@ public class IoTDBSyntaxConventionIdentifierIT {
 
       cnt = 0;
       try (ResultSet resultSet =
-          statement.executeQuery("SELECT (`1`*`1`)+1-`a.b` FROM root.sg1.d1 
where `1` > 1")) {
+          statement.executeQuery("SELECT (`1`*`1`)+1-`a.b` FROM root.db1.d1 
where `1` > 1")) {
         while (resultSet.next()) {
           cnt++;
         }
@@ -439,7 +439,7 @@ public class IoTDBSyntaxConventionIdentifierIT {
 
       cnt = 0;
       try (ResultSet resultSet =
-          statement.executeQuery("SELECT (`1`*`1`)+1-`a.b` FROM root.sg1.d1")) 
{
+          statement.executeQuery("SELECT (`1`*`1`)+1-`a.b` FROM root.db1.d1")) 
{
         while (resultSet.next()) {
           cnt++;
         }
@@ -448,7 +448,7 @@ public class IoTDBSyntaxConventionIdentifierIT {
 
       cnt = 0;
       try (ResultSet resultSet =
-          statement.executeQuery("SELECT (`1`*`1`)+1-`a.b` FROM root.sg1.d1 
where `1`>0")) {
+          statement.executeQuery("SELECT (`1`*`1`)+1-`a.b` FROM root.db1.d1 
where `1`>0")) {
         while (resultSet.next()) {
           cnt++;
         }
@@ -456,7 +456,7 @@ public class IoTDBSyntaxConventionIdentifierIT {
       }
 
       cnt = 0;
-      try (ResultSet resultSet = statement.executeQuery("SELECT avg(`1`)+1 
FROM root.sg1.d1")) {
+      try (ResultSet resultSet = statement.executeQuery("SELECT avg(`1`)+1 
FROM root.db1.d1")) {
         while (resultSet.next()) {
           cnt++;
         }
@@ -465,7 +465,7 @@ public class IoTDBSyntaxConventionIdentifierIT {
 
       cnt = 0;
       try (ResultSet resultSet =
-          statement.executeQuery("SELECT count(`1`)+1 FROM root.sg1.d1 where 
`1`>1")) {
+          statement.executeQuery("SELECT count(`1`)+1 FROM root.db1.d1 where 
`1`>1")) {
         while (resultSet.next()) {
           Assert.assertEquals(2.0, resultSet.getDouble(1), 1e-7);
           cnt++;
@@ -474,7 +474,7 @@ public class IoTDBSyntaxConventionIdentifierIT {
       }
 
       cnt = 0;
-      try (ResultSet resultSet = statement.executeQuery("SELECT sin(`1`) + 1 
FROM root.sg1.d1")) {
+      try (ResultSet resultSet = statement.executeQuery("SELECT sin(`1`) + 1 
FROM root.db1.d1")) {
         while (resultSet.next()) {
           cnt++;
         }
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBAuthIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBAuthIT.java
index 1b7deda9768..ec142bb032e 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBAuthIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBAuthIT.java
@@ -205,8 +205,8 @@ public class IoTDBAuthIT {
         adminStmt.execute("GRANT SYSTEM ON root.** TO USER sgtest");
 
         try {
-          userStmt.execute("CREATE DATABASE root.sgtest");
-          userStmt.execute("DELETE DATABASE root.sgtest");
+          userStmt.execute("CREATE DATABASE root.dbtest");
+          userStmt.execute("DELETE DATABASE root.dbtest");
         } catch (SQLException e) {
           fail(e.getMessage());
         }
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSeriesPermissionIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSeriesPermissionIT.java
index 39fc5e063b5..b6fcc40e310 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSeriesPermissionIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSeriesPermissionIT.java
@@ -263,11 +263,11 @@ public class IoTDBSeriesPermissionIT {
     grantUserSeriesPrivilege("test1", PrivilegeType.WRITE_DATA, 
"root.db.d1.s1");
     assertNonQueryTestFail(
         "insert into root.db.d1(time,s1,s2) values(1,1,1)",
-        "803: No permissions for this operation, please add privilege 
WRITE_DATA on [root.sg.d1.s2]",
+        "803: No permissions for this operation, please add privilege 
WRITE_DATA on [root.db.d1.s2]",
         "test1",
         "test123123456");
     assertNonQueryTestFail(
-        "delete from root.sg.d1.s1, root.sg.d1.s2",
+        "delete from root.db.d1.s1, root.db.d1.s2",
         "803: No permissions for this operation, please add privilege 
WRITE_DATA on [root.sg.d1.s2]",
         "test1",
         "test123123456");
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSystemPermissionIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSystemPermissionIT.java
index 2ebdd37758f..cd09af10670 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSystemPermissionIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSystemPermissionIT.java
@@ -151,7 +151,7 @@ public class IoTDBSystemPermissionIT {
             + "TIMEOUT POLICY DISCARD\n"
             + "BEGIN \n"
             + "  SELECT count(s1)  \n"
-            + "    INTO root.sg_count.d(count_s1)\n"
+            + "    INTO root.db_count.d(count_s1)\n"
             + "    FROM root.sg.d\n"
             + "    GROUP BY(10m)\n"
             + "END",
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBTemplatePermissionIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBTemplatePermissionIT.java
index b2c02164c31..e4fbc126d05 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBTemplatePermissionIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBTemplatePermissionIT.java
@@ -85,12 +85,12 @@ public class IoTDBTemplatePermissionIT {
         "test",
         "test123123456");
     assertNonQueryTestFail(
-        "set device template t1 to root.sg1",
+        "set device template t1 to root.db1",
         "803: No permissions for this operation, please add privilege SYSTEM",
         "test",
         "test123123456");
     assertNonQueryTestFail(
-        "unset device template t1 from root.sg1",
+        "unset device template t1 from root.db1",
         "803: No permissions for this operation, please add privilege SYSTEM",
         "test",
         "test123123456");
@@ -105,7 +105,7 @@ public class IoTDBTemplatePermissionIT {
   public void otherTest() {
     executeNonQuery(
         "create device template t1 (temperature FLOAT encoding=RLE, status 
BOOLEAN encoding=PLAIN compression=SNAPPY)");
-    executeNonQuery("create database root.sg1");
+    executeNonQuery("create database root.db1");
     executeNonQuery("set device template t1 to root.sg1.d1");
 
     // active
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecIT.java
index 94cf4ef1856..ddd06b3cb4c 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecIT.java
@@ -375,7 +375,7 @@ public class IoTDBCQExecIT {
               + "BEGIN \n"
               + "  SELECT max_value(s1) \n"
               + "  INTO root.db.d4(s1_max)\n"
-              + "  FROM root.sg.d4\n"
+              + "  FROM root.db.d4\n"
               + "  GROUP BY(1s) \n"
               + "END");
 
@@ -394,11 +394,11 @@ public class IoTDBCQExecIT {
       long[] expectedTime = {startTime + 1_000, startTime + 3_000};
       long[] expectedValue = {4, 8};
 
-      try (ResultSet resultSet = statement.executeQuery("select s1_max from 
root.sg.d4")) {
+      try (ResultSet resultSet = statement.executeQuery("select s1_max from 
root.db.d4")) {
         int cnt = 0;
         while (resultSet.next()) {
           assertEquals(expectedTime[cnt], resultSet.getLong(TIMESTAMP_STR));
-          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.sg.d4.s1_max"));
+          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.db.d4.s1_max"));
           cnt++;
         }
         assertEquals(expectedTime.length, cnt);
@@ -415,19 +415,19 @@ public class IoTDBCQExecIT {
   @Test
   public void testCQExecution5() {
     String insertTemplate =
-        "INSERT INTO root.sg.d5(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
+        "INSERT INTO root.db.d5(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
       long now = System.currentTimeMillis();
       long firstExecutionTime = now + 10_000;
       long startTime = firstExecutionTime - 3_000;
 
-      statement.execute("create timeseries root.sg.d5.s1 WITH DATATYPE=INT64");
-      statement.execute("create timeseries root.sg.d5.precalculated_s1 WITH 
DATATYPE=DOUBLE");
+      statement.execute("create timeseries root.db.d5.s1 WITH DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d5.precalculated_s1 WITH 
DATATYPE=DOUBLE");
 
       // firstly write one row to init data region, just for accelerating the 
following insert
       // statement.
-      statement.execute("INSERT INTO root.sg.d5(time, s1) VALUES (0,0)");
+      statement.execute("INSERT INTO root.db.d5(time, s1) VALUES (0,0)");
 
       statement.execute(
           String.format(
@@ -460,8 +460,8 @@ public class IoTDBCQExecIT {
               + "RANGE 4s\n"
               + "BEGIN \n"
               + "  SELECT s1 + 1 \n"
-              + "  INTO root.sg.d5(precalculated_s1)\n"
-              + "  FROM root.sg.d5\n"
+              + "  INTO root.db.d5(precalculated_s1)\n"
+              + "  FROM root.db.d5\n"
               + "  align by device\n"
               + "END");
 
@@ -493,7 +493,7 @@ public class IoTDBCQExecIT {
 
       try (ResultSet resultSet =
           statement.executeQuery(
-              "select precalculated_s1 from root.sg.d5 where time between "
+              "select precalculated_s1 from root.db.d5 where time between "
                   + startTime
                   + " and "
                   + (startTime + 4_500))) {
@@ -501,7 +501,7 @@ public class IoTDBCQExecIT {
         while (resultSet.next()) {
           assertEquals(expectedTime[cnt], resultSet.getLong(TIMESTAMP_STR));
           assertEquals(
-              expectedValue[cnt], 
resultSet.getDouble("root.sg.d5.precalculated_s1"), 0.00001);
+              expectedValue[cnt], 
resultSet.getDouble("root.db.d5.precalculated_s1"), 0.00001);
           cnt++;
         }
         assertEquals(expectedTime.length, cnt);
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInNsIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInNsIT.java
index 5472277ffc9..78d8d2644b0 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInNsIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInNsIT.java
@@ -251,7 +251,7 @@ public class IoTDBCQExecInNsIT {
 
       // firstly write one row to init data region, just for accelerating the 
following insert
       // statement.
-      statement.execute("INSERT INTO root.sg.d3(time, s1) VALUES (0,0)");
+      statement.execute("INSERT INTO root.db.d3(time, s1) VALUES (0,0)");
 
       statement.execute(
           String.format(
@@ -284,8 +284,8 @@ public class IoTDBCQExecInNsIT {
               + "RANGE 4s\n"
               + "BEGIN \n"
               + "  SELECT max_value(s1) \n"
-              + "  INTO root.sg.d3(s1_max)\n"
-              + "  FROM root.sg.d3\n"
+              + "  INTO root.db.d3(s1_max)\n"
+              + "  FROM root.db.d3\n"
               + "  GROUP BY(1s) \n"
               + "  FILL(100)\n"
               + "END");
@@ -314,14 +314,14 @@ public class IoTDBCQExecInNsIT {
 
       try (ResultSet resultSet =
           statement.executeQuery(
-              "select s1_max from root.sg.d3 where time between "
+              "select s1_max from root.db.d3 where time between "
                   + (startTime - 1_000_000_000L)
                   + " and "
                   + (startTime + 4_000_000_000L))) {
         int cnt = 0;
         while (resultSet.next()) {
           assertEquals(expectedTime[cnt], resultSet.getLong(TIMESTAMP_STR));
-          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.sg.d3.s1_max"));
+          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.db.d3.s1_max"));
           cnt++;
         }
         assertEquals(expectedTime.length, cnt);
@@ -338,19 +338,19 @@ public class IoTDBCQExecInNsIT {
   @Test
   public void testCQExecution4() {
     String insertTemplate =
-        "INSERT INTO root.sg.d4(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
+        "INSERT INTO root.db.d4(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
       long now = System.currentTimeMillis() * 1_000_000L;
       long firstExecutionTime = now + 10_000_000_000L;
       long startTime = firstExecutionTime - 3_000_000_000L;
 
-      statement.execute("create timeseries root.sg.d4.s1 WITH DATATYPE=INT64");
-      statement.execute("create timeseries root.sg.d4.s1_max WITH 
DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d4.s1 WITH DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d4.s1_max WITH 
DATATYPE=INT64");
 
       // firstly write one row to init data region, just for accelerating the 
following insert
       // statement.
-      statement.execute("INSERT INTO root.sg.d4(time, s1) VALUES (0,0)");
+      statement.execute("INSERT INTO root.db.d4(time, s1) VALUES (0,0)");
 
       statement.execute(
           String.format(
@@ -383,8 +383,8 @@ public class IoTDBCQExecInNsIT {
               + "RANGE 2s, 1s\n"
               + "BEGIN \n"
               + "  SELECT max_value(s1) \n"
-              + "  INTO root.sg.d4(s1_max)\n"
-              + "  FROM root.sg.d4\n"
+              + "  INTO root.db.d4(s1_max)\n"
+              + "  FROM root.db.d4\n"
               + "  GROUP BY(1s) \n"
               + "END");
 
@@ -403,11 +403,11 @@ public class IoTDBCQExecInNsIT {
       long[] expectedTime = {startTime + 1_000_000_000L, startTime + 
3_000_000_000L};
       long[] expectedValue = {4, 8};
 
-      try (ResultSet resultSet = statement.executeQuery("select s1_max from 
root.sg.d4")) {
+      try (ResultSet resultSet = statement.executeQuery("select s1_max from 
root.db.d4")) {
         int cnt = 0;
         while (resultSet.next()) {
           assertEquals(expectedTime[cnt], resultSet.getLong(TIMESTAMP_STR));
-          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.sg.d4.s1_max"));
+          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.db.d4.s1_max"));
           cnt++;
         }
         assertEquals(expectedTime.length, cnt);
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInUsIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInUsIT.java
index 7ef0bc5362c..2fbfba551b1 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInUsIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInUsIT.java
@@ -239,19 +239,19 @@ public class IoTDBCQExecInUsIT {
   @Test
   public void testCQExecution3() {
     String insertTemplate =
-        "INSERT INTO root.sg.d3(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
+        "INSERT INTO root.db.d3(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
       long now = System.currentTimeMillis() * 1_000L;
       long firstExecutionTime = now + 10_000_000L;
       long startTime = firstExecutionTime - 3_000_000L;
 
-      statement.execute("create timeseries root.sg.d3.s1 WITH DATATYPE=INT64");
-      statement.execute("create timeseries root.sg.d3.s1_max WITH 
DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d3.s1 WITH DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d3.s1_max WITH 
DATATYPE=INT64");
 
       // firstly write one row to init data region, just for accelerating the 
following insert
       // statement.
-      statement.execute("INSERT INTO root.sg.d3(time, s1) VALUES (0,0)");
+      statement.execute("INSERT INTO root.db.d3(time, s1) VALUES (0,0)");
 
       statement.execute(
           String.format(
@@ -284,8 +284,8 @@ public class IoTDBCQExecInUsIT {
               + "RANGE 4s\n"
               + "BEGIN \n"
               + "  SELECT max_value(s1) \n"
-              + "  INTO root.sg.d3(s1_max)\n"
-              + "  FROM root.sg.d3\n"
+              + "  INTO root.db.d3(s1_max)\n"
+              + "  FROM root.db.d3\n"
               + "  GROUP BY(1s) \n"
               + "  FILL(100)\n"
               + "END");
@@ -314,14 +314,14 @@ public class IoTDBCQExecInUsIT {
 
       try (ResultSet resultSet =
           statement.executeQuery(
-              "select s1_max from root.sg.d3 where time between "
+              "select s1_max from root.db.d3 where time between "
                   + (startTime - 1_000_000L)
                   + " and "
                   + (startTime + 4_000_000L))) {
         int cnt = 0;
         while (resultSet.next()) {
           assertEquals(expectedTime[cnt], resultSet.getLong(TIMESTAMP_STR));
-          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.sg.d3.s1_max"));
+          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.db.d3.s1_max"));
           cnt++;
         }
         assertEquals(expectedTime.length, cnt);
@@ -338,15 +338,15 @@ public class IoTDBCQExecInUsIT {
   @Test
   public void testCQExecution4() {
     String insertTemplate =
-        "INSERT INTO root.sg.d4(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
+        "INSERT INTO root.db.d4(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
       long now = System.currentTimeMillis() * 1_000L;
       long firstExecutionTime = now + 10_000_000L;
       long startTime = firstExecutionTime - 3_000_000L;
 
-      statement.execute("create timeseries root.sg.d4.s1 WITH DATATYPE=INT64");
-      statement.execute("create timeseries root.sg.d4.s1_max WITH 
DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d4.s1 WITH DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d4.s1_max WITH 
DATATYPE=INT64");
 
       // firstly write one row to init data region, just for accelerating the 
following insert
       // statement.
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQIT.java
index 22c546e1258..f8f3f39480c 100644
--- a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQIT.java
+++ b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQIT.java
@@ -355,7 +355,7 @@ public class IoTDBCQIT {
                 + "BEGIN \n"
                 + "  SELECT count(s1)  \n"
                 + "    INTO root.db_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(30m)\n"
                 + "END";
         statement.execute(sql);
@@ -371,8 +371,8 @@ public class IoTDBCQIT {
                 + "TIMEOUT POLICY DISCARD\n"
                 + "BEGIN \n"
                 + "  SELECT count(s1)  \n"
-                + "    INTO root.sg_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    INTO root.db_count.d(count_s1)\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(10m)\n"
                 + "END";
         statement.execute(sql);
@@ -388,8 +388,8 @@ public class IoTDBCQIT {
                 + "TIMEOUT POLICY DISCARD\n"
                 + "BEGIN \n"
                 + "  SELECT count(s1)  \n"
-                + "    INTO root.sg_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    INTO root.db_count.d(count_s1)\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(10m)\n"
                 + "END";
         statement.execute(sql);
@@ -423,15 +423,15 @@ public class IoTDBCQIT {
             + "TIMEOUT POLICY BLOCKED\n"
             + "BEGIN \n"
             + "  SELECT count(s1)  \n"
-            + "    INTO root.sg_count.d(count_s1)\n"
-            + "    FROM root.sg.d\n"
+            + "    INTO root.db_count.d(count_s1)\n"
+            + "    FROM root.db.d\n"
             + "    GROUP BY(30m)\n"
             + "END",
         "CREATE CQ show_cq_2\n"
             + "BEGIN \n"
             + "  SELECT count(s1)  \n"
-            + "    INTO root.sg_count.d(count_s1)\n"
-            + "    FROM root.sg.d\n"
+            + "    INTO root.db_count.d(count_s1)\n"
+            + "    FROM root.db.d\n"
             + "    GROUP BY(30m)\n"
             + "END",
         "CREATE CQ show_cq_3\n"
@@ -439,8 +439,8 @@ public class IoTDBCQIT {
             + "TIMEOUT POLICY DISCARD\n"
             + "BEGIN \n"
             + "  SELECT count(s1)  \n"
-            + "    INTO root.sg_count.d(count_s1)\n"
-            + "    FROM root.sg.d\n"
+            + "    INTO root.db_count.d(count_s1)\n"
+            + "    FROM root.db.d\n"
             + "    GROUP BY(10m)\n"
             + "END",
         "CREATE CQ show_cq_4\n"
@@ -448,8 +448,8 @@ public class IoTDBCQIT {
             + "TIMEOUT POLICY DISCARD\n"
             + "BEGIN \n"
             + "  SELECT count(s1)  \n"
-            + "    INTO root.sg_count.d(count_s1)\n"
-            + "    FROM root.sg.d\n"
+            + "    INTO root.db_count.d(count_s1)\n"
+            + "    FROM root.db.d\n"
             + "    GROUP BY(10m)\n"
             + "END"
       };
@@ -497,7 +497,7 @@ public class IoTDBCQIT {
             + "TIMEOUT POLICY BLOCKED\n"
             + "BEGIN \n"
             + "  SELECT count(s1)  \n"
-            + "    INTO root.sg_count.d(count_s1)\n"
+            + "    INTO root.db_count.d(count_s1)\n"
             + "    FROM root.sg.d\n"
             + "    GROUP BY(30m)\n"
             + "END",
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDTFBuiltinFunctionIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDTFBuiltinFunctionIT.java
index 554808ea032..8eb52b364f4 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDTFBuiltinFunctionIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDTFBuiltinFunctionIT.java
@@ -87,9 +87,9 @@ public class IoTDBUDTFBuiltinFunctionIT {
       statement.execute("CREATE TIMESERIES root.db.d1.s4 with 
datatype=DOUBLE,encoding=PLAIN");
       statement.execute("CREATE TIMESERIES root.db.d1.s5 with 
datatype=BOOLEAN,encoding=PLAIN");
       statement.execute("CREATE TIMESERIES root.db.d1.s6 with 
datatype=TEXT,encoding=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg.d1.s10 with 
datatype=DATE,encoding=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg.d1.s11 with 
datatype=TIMESTAMP,encoding=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg.d1.s12 with 
datatype=STRING,encoding=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db.d1.s10 with 
datatype=DATE,encoding=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db.d1.s11 with 
datatype=TIMESTAMP,encoding=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db.d1.s12 with 
datatype=STRING,encoding=PLAIN");
     } catch (SQLException throwable) {
       fail(throwable.getMessage());
     }
@@ -141,7 +141,7 @@ public class IoTDBUDTFBuiltinFunctionIT {
       ResultSet resultSet =
           statement.executeQuery(
               String.format(
-                  "select %s(s1), %s(s2), %s(s3), %s(s4) from root.sg.d1",
+                  "select %s(s1), %s(s2), %s(s3), %s(s4) from root.db.d1",
                   functionName, functionName, functionName, functionName));
 
       int columnCount = resultSet.getMetaData().getColumnCount();
@@ -160,7 +160,7 @@ public class IoTDBUDTFBuiltinFunctionIT {
       resultSet =
           statement.executeQuery(
               String.format(
-                  "select %s(s1), %s(s2), %s(s3), %s(s4) from root.sg.d1 align 
by device",
+                  "select %s(s1), %s(s2), %s(s3), %s(s4) from root.db.d1 align 
by device",
                   functionName, functionName, functionName, functionName));
 
       columnCount = resultSet.getMetaData().getColumnCount();
@@ -191,7 +191,7 @@ public class IoTDBUDTFBuiltinFunctionIT {
       ResultSet resultSet =
           statement.executeQuery(
               String.format(
-                  "select %s(s1, %s), %s(s2, %s), %s(s3, %s), %s(s4, %s), 
%s(s6, %s), %s(s10, %s), %s(s11, %s), %s(s12, %s) from root.sg.d1",
+                  "select %s(s1, %s), %s(s2, %s), %s(s3, %s), %s(s4, %s), 
%s(s6, %s), %s(s10, %s), %s(s11, %s), %s(s12, %s) from root.db.d1",
                   TOP_K, K, TOP_K, K, TOP_K, K, TOP_K, K, TOP_K, K, TOP_K, K, 
TOP_K, K, TOP_K, K));
 
       int columnCount = resultSet.getMetaData().getColumnCount();
@@ -214,7 +214,7 @@ public class IoTDBUDTFBuiltinFunctionIT {
       resultSet =
           statement.executeQuery(
               String.format(
-                  "select %s(s1, %s), %s(s2, %s), %s(s3, %s), %s(s4, %s), 
%s(s6, %s) from root.sg.d1 align by device",
+                  "select %s(s1, %s), %s(s2, %s), %s(s3, %s), %s(s4, %s), 
%s(s6, %s) from root.db.d1 align by device",
                   TOP_K, K, TOP_K, K, TOP_K, K, TOP_K, K, TOP_K, K));
 
       columnCount = resultSet.getMetaData().getColumnCount();
@@ -236,7 +236,7 @@ public class IoTDBUDTFBuiltinFunctionIT {
       ResultSet resultSet =
           statement.executeQuery(
               String.format(
-                  "select %s(s1, %s), %s(s2, %s), %s(s3, %s), %s(s4, %s), 
%s(s6, %s), %s(s10, %s), %s(s11, %s), %s(s12, %s) from root.sg.d1",
+                  "select %s(s1, %s), %s(s2, %s), %s(s3, %s), %s(s4, %s), 
%s(s6, %s), %s(s10, %s), %s(s11, %s), %s(s12, %s) from root.db.d1",
                   BOTTOM_K, K, BOTTOM_K, K, BOTTOM_K, K, BOTTOM_K, K, 
BOTTOM_K, K, BOTTOM_K, K,
                   BOTTOM_K, K, BOTTOM_K, K));
 
diff --git 
a/iotdb-client/session/src/test/java/org/apache/iotdb/session/SessionTest.java 
b/iotdb-client/session/src/test/java/org/apache/iotdb/session/SessionTest.java
index e4d2dbbb41d..5471c221908 100644
--- 
a/iotdb-client/session/src/test/java/org/apache/iotdb/session/SessionTest.java
+++ 
b/iotdb-client/session/src/test/java/org/apache/iotdb/session/SessionTest.java
@@ -78,7 +78,7 @@ public class SessionTest {
             .build();
     Whitebox.setInternalState(session, "defaultSessionConnection", 
sessionConnection);
     TSQueryTemplateResp resp = new TSQueryTemplateResp();
-    resp.setMeasurements(Arrays.asList("root.sg1.d1.s1"));
+    resp.setMeasurements(Arrays.asList("root.db1.d1.s1"));
     
Mockito.when(sessionConnection.querySchemaTemplate(any())).thenReturn(resp);
     HashMap<String, TEndPoint> deviceIdToEndpoint = new HashMap<>();
     deviceIdToEndpoint.put("device1", new TEndPoint());
diff --git 
a/iotdb-client/session/src/test/java/org/apache/iotdb/session/TabletTest.java 
b/iotdb-client/session/src/test/java/org/apache/iotdb/session/TabletTest.java
index bc9469e57a4..13b12586b0e 100644
--- 
a/iotdb-client/session/src/test/java/org/apache/iotdb/session/TabletTest.java
+++ 
b/iotdb-client/session/src/test/java/org/apache/iotdb/session/TabletTest.java
@@ -50,7 +50,7 @@ public class TabletTest {
     schemaList.add(new MeasurementSchema("s9", TSDataType.STRING));
     ;
     // insert three rows data
-    Tablet tablet = new Tablet("root.sg1.d1", schemaList, 3);
+    Tablet tablet = new Tablet("root.db1.d1", schemaList, 3);
     Object[] values = tablet.getValues();
 
     /*
diff --git 
a/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/PartialPath.java
 
b/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/PartialPath.java
index 1904c5460a8..383cdfb32d8 100644
--- 
a/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/PartialPath.java
+++ 
b/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/PartialPath.java
@@ -458,7 +458,7 @@ public class PartialPath extends Path implements 
Comparable<Path>, Cloneable {
    *
    * <p>For example:
    *
-   * <p>1) Pattern "root.db1.d1.*" can match prefix path "root.sg1.d1.s1", 
"root.sg1.d1",
+   * <p>1) Pattern "root.db1.d1.*" can match prefix path "root.db1.d1.s1", 
"root.db1.d1",
    * "root.sg1", "root" etc.
    *
    * <p>1) Pattern "root.sg1.d1.*" does not match prefix path "root.sg2", 
"root.sg1.d2".


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