features.rb in sequel-3.29.0

- old
+ new

@@ -22,16 +22,28 @@
     # rows matched by the dataset's filter.
     def provides_accurate_rows_matched?
       true
     end
     
+    # Whether you must use a column alias list for recursive CTEs (false by
+    # default).
+    def recursive_cte_requires_column_aliases?
+      false
+    end
+
     # Whether the dataset requires SQL standard datetimes (false by default,
     # as most allow strings with ISO 8601 format).
     def requires_sql_standard_datetimes?
       false
     end
 
+    # Whether type specifiers are required for prepared statement/bound
+    # variable argument placeholders (i.e. :bv__integer)
+    def requires_placeholder_type_specifiers?
+      false
+    end
+
     # Whether the dataset supports common table expressions (the WITH clause).
     # If given, +type+ can be :select, :insert, :update, or :delete, in which case it
     # determines whether WITH is supported for the respective statement type.
     def supports_cte?(type=:select)
       send(:"#{type}_clause_methods").include?(:"#{type}_with_sql")
@@ -123,9 +135,21 @@
     def supports_where_true?
       true
     end
 
     private
+
+    # Whether insert(nil) or insert({}) must be emulated by
+    # using at least one value, false by default.
+    def insert_supports_empty_values?
+      true
+    end
+
+    # Whether using an offset returns an extra row number column that should be
+    # eliminated, false by default.
+    def offset_returns_row_number_column?
+      false
+    end
 
     # Whether the RETURNING clause is used for the given dataset.
     # +type+ can be :insert, :update, or :delete.
     def uses_returning?(type)
       opts[:returning] && !@opts[:sql] && supports_returning?(type)