Add detail to error message 'column not found...'

extension/Classes/Core/Constants.php

@@ -233,7 +233,7 @@ const ERROR_PLAY_SQL_MULTIQUERY = 1087;
 
 // Subrecord
 const ERROR_SUBRECORD_MISSING_COLUMN_ID = 1100;
-const ERROR_SUBRECORD_DETAIL_COLUMN_NOT_FOUND = 'Column not found in primary record or current row';
+const ERROR_SUBRECORD_DETAIL_COLUMN_NOT_FOUND = 'Column not found in primary record or current row (or missed & to indicate a constant?)';
 
 // Store
 const ERROR_STORE_VALUE_ALREADY_CODPIED = 1200;