diff --git a/doc/doc-api/src/main/java/cn/axzo/nanopart/doc/api/enums/DatabaseScope.java b/doc/doc-api/src/main/java/cn/axzo/nanopart/doc/api/enums/DatabaseScope.java
index c7f68da7..436e791c 100644
--- a/doc/doc-api/src/main/java/cn/axzo/nanopart/doc/api/enums/DatabaseScope.java
+++ b/doc/doc-api/src/main/java/cn/axzo/nanopart/doc/api/enums/DatabaseScope.java
@@ -12,14 +12,15 @@ import lombok.RequiredArgsConstructor;
 public enum DatabaseScope {
 
 	// 匿名数据库
-	ANONYMOUS(DatabaseType.NONE),
+	ANONYMOUS(DatabaseType.NONE, true),
 	// 企业数据库
-	ENT_DATABASE(DatabaseType.CREATED_BY_SYSTEM),
+	ENT_DATABASE(DatabaseType.CREATED_BY_SYSTEM, false),
 	// 项目数据库
-	PROJECT_DATABASE(DatabaseType.CREATED_BY_SYSTEM),
+	PROJECT_DATABASE(DatabaseType.CREATED_BY_SYSTEM, false),
 	// 个人数据库:  为单位建的
-	PERSONAL_FOR_ENT(DatabaseType.CREATED_BY_USER_FOR_ENT);
+	PERSONAL_FOR_ENT(DatabaseType.CREATED_BY_USER_FOR_ENT, false);
 
 	private final DatabaseType databaseType;
+	private final boolean childrenNameDuplicatable;
 
 }
diff --git a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexManager.java b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexManager.java
index e5da764f..c8eebe72 100644
--- a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexManager.java
+++ b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexManager.java
@@ -54,15 +54,13 @@ public class IndexManager {
 
 	@BizTransactional
 	public IndexNode createDatabase(NodeCreate create) {
-		indexSupport.lockParentAndReleaseOnCommit(create);
-		indexSupport.ensureChildNameNotUsed(create, IndexNodeType.DATABASE);
+		maybeEnsureChildNameNotUsed(create, IndexNodeType.DATABASE, true);
 		return indexSupport.createNode(create, IndexNodeType.DATABASE);
 	}
 
 	@BizTransactional
 	public IndexNode createDir(NodeCreate create) {
-		indexSupport.lockParentAndReleaseOnCommit(create);
-		indexSupport.ensureChildNameNotUsed(create, IndexNodeType.DIRECTORY);
+		maybeEnsureChildNameNotUsed(create, IndexNodeType.DIRECTORY, true);
 		return indexSupport.createNode(create, IndexNodeType.DIRECTORY);
 	}
 
@@ -70,7 +68,7 @@ public class IndexManager {
 		BizAssertions.assertTrue(format.creatable(), "无法创建: {}", format.readableName());
 		BizAssertions.assertFalse(TransactionSynchronizationManager.isActualTransactionActive(), "不能在事务中使用");
 		// check without lock
-		indexSupport.ensureChildNameNotUsed(create, IndexNodeType.FILE);
+		maybeEnsureChildNameNotUsed(create, IndexNodeType.FILE, false);
 		String fullFileName = String.format("%s.%s", create.name(), format.createFileExtension());
 		String ossFileKey = ossClient.copy(docProps.createFileOssFileKey(format), fullFileName);
 		return OssFile.create(format, format.createFileExtension(), 0, ossFileKey);
@@ -92,10 +90,9 @@ public class IndexManager {
 		Ref<Boolean> deleteOssFile = Ref.create(false);
 		try {
 			return transaction.execute(unused -> {
-				indexSupport.lockParentAndReleaseOnCommit(create);
 				try {
 					// check with lock
-					indexSupport.ensureChildNameNotUsed(create, IndexNodeType.FILE);
+					maybeEnsureChildNameNotUsed(create, IndexNodeType.FILE, true);
 				}
 				catch (NameUsedException e) {
 					deleteOssFile.set(true);
@@ -118,14 +115,24 @@ public class IndexManager {
 		}
 	}
 
+	private void maybeEnsureChildNameNotUsed(NodeCreate create, IndexNodeType nodeType, boolean withLock) {
+		if (create.nodeScope().scope().isChildrenNameDuplicatable())
+			return;
+		if (withLock)
+			indexSupport.lockParentAndReleaseOnCommit(create);
+		indexSupport.ensureChildNameNotUsed(create, nodeType, create.name());
+	}
+
 	@BizTransactional
 	public void rename(String code, String newName) {
 		IndexNode indexNode = getOrThrow(code);
 		if (indexNode.getName().equals(newName))
 			return;
 		docLogDao.log("indexNodeRename", code, "newName", newName);
-		indexSupport.lockParentAndReleaseOnCommit(indexNode);
-		indexSupport.ensureChildNameNotUsed(indexNode, indexNode.getNodeType(), newName);
+		if (!indexNode.scope().isChildrenNameDuplicatable()) {
+			indexSupport.lockParentAndReleaseOnCommit(indexNode);
+			indexSupport.ensureChildNameNotUsed(indexNode, indexNode.getNodeType(), newName);
+		}
 		indexNodeDao.rename(code, newName);
 		if (indexNode.isFile())
 			fileBroadcaster.fireRenameIndexNodeOssFile(code);
@@ -207,7 +214,8 @@ public class IndexManager {
 		indexNodeDao.connectNodes(TreeUtils.collectValues(connectRoot));
 		IndexNode rootNode = connectRoot.getChildren().get(0).<IndexNode> asValueNode().getValue();
 		// resolve the name issue
-		indexSupport.incrNameIfDuplicate(rootNode);
+		if (!rootNode.scope().isChildrenNameDuplicatable())
+			indexSupport.incrNameIfDuplicate(rootNode);
 		// get the coped root with full props
 		return indexNodeDao.findOrNull(rootNode.getCode());
 	}
diff --git a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexSupport.java b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexSupport.java
index ff57d2f8..10a259d0 100644
--- a/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexSupport.java
+++ b/doc/doc-server/src/main/java/cn/axzo/nanopart/doc/file/index/IndexSupport.java
@@ -117,10 +117,6 @@ class IndexSupport {
 		indexNodeDao.rename(rename.getCode(), newName);
 	}
 
-	void ensureChildNameNotUsed(NodeCreate create, IndexNodeType nodeType) {
-		ensureChildNameNotUsed(create, nodeType, create.name());
-	}
-
 	void ensureChildNameNotUsed(IndexNodeParentScope parentScope, IndexNodeType nodeType, String childName) {
 		IndexNode child = indexNodeDao.findValidChildByName(parentScope, nodeType, childName);
 		if (child != null)