fix

Author: JingsongLi

paimon-core/src/main/java/org/apache/paimon/rest/RESTCatalog.java

@@ -55,7 +55,6 @@
 import org.apache.paimon.rest.responses.AlterDatabaseResponse;
 import org.apache.paimon.rest.responses.CommitTableResponse;
 import org.apache.paimon.rest.responses.ConfigResponse;
-import org.apache.paimon.rest.responses.CreateDatabaseResponse;
 import org.apache.paimon.rest.responses.ErrorResponseResourceType;
 import org.apache.paimon.rest.responses.GetDatabaseResponse;
 import org.apache.paimon.rest.responses.GetTableResponse;
@@ -207,11 +206,7 @@ public void createDatabase(String name, boolean ignoreIfExists, Map<String, Stri
         checkNotSystemDatabase(name);
         CreateDatabaseRequest request = new CreateDatabaseRequest(name, properties);
         try {
-            client.post(
-                    resourcePaths.databases(),
-                    request,
-                    CreateDatabaseResponse.class,
-                    restAuthFunction);
+            client.post(resourcePaths.databases(), request, restAuthFunction);
         } catch (AlreadyExistsException e) {
             if (!ignoreIfExists) {
                 throw new DatabaseAlreadyExistException(name);

paimon-open-api/src/main/java/org/apache/paimon/open/api/RESTCatalogController.java

@@ -32,7 +32,6 @@
 import org.apache.paimon.rest.responses.AlterDatabaseResponse;
 import org.apache.paimon.rest.responses.CommitTableResponse;
 import org.apache.paimon.rest.responses.ConfigResponse;
-import org.apache.paimon.rest.responses.CreateDatabaseResponse;
 import org.apache.paimon.rest.responses.ErrorResponse;
 import org.apache.paimon.rest.responses.GetDatabaseResponse;
 import org.apache.paimon.rest.responses.GetTableResponse;
@@ -125,11 +124,7 @@ public ListDatabasesResponse listDatabases(
             summary = "Create Databases",
             tags = {"database"})
     @ApiResponses({
-        @ApiResponse(
-                responseCode = "200",
-                content = {
-                    @Content(schema = @Schema(implementation = CreateDatabaseResponse.class))
-                }),
+        @ApiResponse(responseCode = "200", description = "Success, no content"),
         @ApiResponse(
                 responseCode = "409",
                 description = "Resource has exist",
@@ -139,11 +134,8 @@ public ListDatabasesResponse listDatabases(
                 content = {@Content(schema = @Schema())})
     })
     @PostMapping("/v1/{prefix}/databases")
-    public CreateDatabaseResponse createDatabases(
-            @PathVariable String prefix, @RequestBody CreateDatabaseRequest request) {
-        Map<String, String> properties = new HashMap<>();
-        return new CreateDatabaseResponse("name", properties);
-    }
+    public void createDatabases(
+            @PathVariable String prefix, @RequestBody CreateDatabaseRequest request) {}
 
     @Operation(
             summary = "Get Database",