Update queryHelperManager.py

queryHelperManager.py

@@ -58,7 +58,7 @@ class QueryHelper:
   def getSystemPromptForTableCols(self):
     schemaName = self.schemaName
     platform = self.platform
-    tableSummaryDict = json.load(self.tableSummaryJson)
+    tableSummaryDict = json.load(open(self.tableSummaryJson, 'r'))
     selectedTablesAndCols = self.metadataLayout.getSelectedTablesAndCols()
 
     promptTableInfo = f"""You are a powerful text to sql model. Answer which tables and columns are needed