fix: make odata search case insensitive

Author: vishnurk6247

wavefront/server/plugins/datasource/datasource/odata_parser.py

@@ -353,17 +353,17 @@ def build_comparison(self, field: str, operator: str, value: str) -> str:
             return f'{field} {sql_op} {self.dynamic_var_char}{param_key}'
 
         elif operator == 'in':
-            # Parse array values
+            # Parse array values, lowercase for case-insensitive matching
             items = value.strip('[]').split(',')
-            parsed_values = [v.strip().strip('\'"') for v in items]
+            parsed_values = [v.strip().strip('\'"').lower() for v in items]
 
             placeholder_keys = []
             for idx, val in enumerate(parsed_values):
                 item_key = f'{param_key}_{idx}'
                 self.params[item_key] = val
                 placeholder_keys.append(f'{self.dynamic_var_char}{item_key}')
 
-            return f"{field} IN ({', '.join(placeholder_keys)})"
+            return f"LOWER({field}) IN ({', '.join(placeholder_keys)})"
 
         else:
             parsed_value = self.parse_value(value)