Add missing 28 to AppenderParams array impl

Author: mlafeldt

crates/duckdb/src/appender_params.rs

@@ -172,9 +172,14 @@ macro_rules! impl_for_array_ref {
 // Following libstd/libcore's (old) lead, implement this for arrays up to `[_;
 // 32]`. Note `[_; 0]` is intentionally omitted for coherence reasons, see the
 // note above the impl of `[&dyn ToSql; 0]` for more information.
+//
+// For tables with more than 32 columns, users should use:
+// - `&[&dyn ToSql]` for dynamic parameter binding (recommended)
+// - `params!` macro
+// - `appender_params_from_iter`
 impl_for_array_ref!(
     1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
-    18 19 20 21 22 23 24 25 26 27 29 30 31 32
+    18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
 );
 
 /// Adapter type which allows any iterator over [`ToSql`] values to implement