diff --git a/frontend/components/v2/config-panels/V2SplitPanelLayoutConfigPanel.tsx b/frontend/components/v2/config-panels/V2SplitPanelLayoutConfigPanel.tsx
index d3462802..935e9f42 100644
--- a/frontend/components/v2/config-panels/V2SplitPanelLayoutConfigPanel.tsx
+++ b/frontend/components/v2/config-panels/V2SplitPanelLayoutConfigPanel.tsx
@@ -322,7 +322,7 @@ const PanelColumnSection: React.FC<{
       {
         name: colInfo.columnName,
         label:
-          colInfo.columnLabel || colInfo.columnName,
+          colInfo.displayName || colInfo.columnName,
         width: 120,
       },
     ]);
@@ -407,10 +407,10 @@ const PanelColumnSection: React.FC<{
                   />
                   <Database className="text-muted-foreground h-3 w-3 flex-shrink-0" />
                   <span className="truncate text-xs">
-                    {col.columnLabel || col.columnName}
+                    {col.displayName || col.columnName}
                   </span>
                   <span className="ml-auto text-[10px] text-muted-foreground/70">
-                    {(col as any).input_type || col.dataType}
+                    {col.input_type || col.dataType}
                   </span>
                 </div>
               );
@@ -822,20 +822,24 @@ export const V2SplitPanelLayoutConfigPanel: React.FC<
       setLoadingColumns((prev) => ({ ...prev, [tableName]: true }));
       try {
         const columnsResponse = await tableTypeApi.getColumns(tableName);
-        const cols: ColumnInfo[] = (columnsResponse || []).map((col: any) => ({
+        const cols = (columnsResponse || []).map((col: any) => ({
           tableName: col.tableName || tableName,
           columnName: col.columnName || col.column_name,
-          columnLabel:
+          displayName:
             col.displayName ||
             col.columnLabel ||
             col.column_label ||
             col.columnName ||
             col.column_name,
-          dataType: col.dataType || col.data_type || col.dbType,
-          webType: col.webType || col.web_type,
-          input_type: col.inputType || col.input_type,
+          dataType: col.dataType || col.data_type || col.dbType || "",
+          dbType: col.dbType || col.dataType || col.data_type || "",
+          webType: col.webType || col.web_type || "text",
+          inputType: col.inputType || "direct",
+          input_type: col.input_type || col.inputType,
+          isNullable: col.isNullable === true || col.isNullable === "Y",
+          isPrimaryKey: col.isPrimaryKey ?? false,
           referenceTable: col.referenceTable || col.reference_table,
-        }));
+        })) as ColumnInfo[];
         setLoadedTableColumns((prev) => ({ ...prev, [tableName]: cols }));
         await loadEntityJoinColumnsForTable(tableName);
       } catch (error) {
@@ -1234,12 +1238,7 @@ export const V2SplitPanelLayoutConfigPanel: React.FC<
                 <div className="mt-2 rounded-md border p-3">
                   <DataFilterConfigPanel
                     tableName={leftTableName}
-                    columns={leftTableColumns.map((col) => ({
-                      columnName: col.columnName,
-                      columnLabel: col.columnLabel || col.columnName,
-                      dataType: col.dataType,
-                      input_type: (col as any).input_type,
-                    }))}
+                    columns={leftTableColumns}
                     config={config.leftPanel?.dataFilter}
                     onConfigChange={(dataFilter) =>
                       updateLeftPanel({ dataFilter })
@@ -1379,7 +1378,7 @@ export const V2SplitPanelLayoutConfigPanel: React.FC<
                               key={col.columnName}
                               value={col.columnName}
                             >
-                              {col.columnLabel || col.columnName}
+                              {col.displayName || col.columnName}
                             </SelectItem>
                           ))}
                         </SelectContent>
@@ -1411,7 +1410,7 @@ export const V2SplitPanelLayoutConfigPanel: React.FC<
                               key={col.columnName}
                               value={col.columnName}
                             >
-                              {col.columnLabel || col.columnName}
+                              {col.displayName || col.columnName}
                             </SelectItem>
                           ))}
                         </SelectContent>
@@ -1467,7 +1466,7 @@ export const V2SplitPanelLayoutConfigPanel: React.FC<
                             key={col.columnName}
                             value={col.columnName}
                           >
-                            {col.columnLabel || col.columnName}
+                            {col.displayName || col.columnName}
                           </SelectItem>
                         ))}
                       </SelectContent>
@@ -1497,7 +1496,7 @@ export const V2SplitPanelLayoutConfigPanel: React.FC<
                             key={col.columnName}
                             value={col.columnName}
                           >
-                            {col.columnLabel || col.columnName}
+                            {col.displayName || col.columnName}
                           </SelectItem>
                         ))}
                       </SelectContent>
@@ -1645,12 +1644,7 @@ export const V2SplitPanelLayoutConfigPanel: React.FC<
                 <div className="mt-2 rounded-md border p-3">
                   <DataFilterConfigPanel
                     tableName={rightTableName}
-                    columns={rightTableColumns.map((col) => ({
-                      columnName: col.columnName,
-                      columnLabel: col.columnLabel || col.columnName,
-                      dataType: col.dataType,
-                      input_type: (col as any).input_type,
-                    }))}
+                    columns={rightTableColumns}
                     config={config.rightPanel?.dataFilter}
                     onConfigChange={(dataFilter) =>
                       updateRightPanel({ dataFilter })
@@ -1730,7 +1724,7 @@ export const V2SplitPanelLayoutConfigPanel: React.FC<
                                 key={col.columnName}
                                 value={col.columnName}
                               >
-                                {col.columnLabel || col.columnName}
+                                {col.displayName || col.columnName}
                               </SelectItem>
                             ))}
                           </SelectContent>
@@ -2202,7 +2196,7 @@ export const V2SplitPanelLayoutConfigPanel: React.FC<
                                 key={col.columnName}
                                 value={col.columnName}
                               >
-                                {col.columnLabel || col.columnName}
+                                {col.displayName || col.columnName}
                               </SelectItem>
                             ))}
                           </SelectContent>
@@ -2229,7 +2223,7 @@ export const V2SplitPanelLayoutConfigPanel: React.FC<
                                   key={col.columnName}
                                   value={col.columnName}
                                 >
-                                  {col.columnLabel || col.columnName}
+                                  {col.displayName || col.columnName}
                                 </SelectItem>
                               )
                             )}