Document that extended result codes are not always available (#171, #180

)
groue · Mar 26, 2017 · dedfd5c · dedfd5c
1 parent b5296f4
commit dedfd5c
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/README.md b/README.md
@@ -4756,6 +4756,8 @@ do {
 }
 ```
 
+> :warning: **Warning**: SQLite has progressively introduced extended result codes accross its versions. For example, `SQLITE_CONSTRAINT_FOREIGNKEY` wasn't introduced yet on iOS 8.1. The [SQLite release notes](http://www.sqlite.org/changes.html) are unfortunately not quite clear about that: write your handling of extended result codes with care.
+
 
 ### PersistenceError