result.rb in duckdb-0.8.0

- old
+ new

@@ -1,5 +1,9 @@
+# frozen_string_literal: true
+
+require 'bigdecimal'
+
 module DuckDB
   # The Result class encapsulates a execute result of DuckDB database.
   #
   # The usage is as follows:
   #
@@ -26,12 +30,13 @@
       3 => :_to_smallint,
       4 => :_to_integer,
       5 => :_to_bigint,
       10 => :_to_float,
       11 => :_to_double,
-      16 => :_to_hugeint,
+      16 => :_to_hugeint_internal,
       18 => :_to_blob,
+      19 => :_to_decimal_internal
     }
 
     ToRuby.default = :_to_string
 
     alias column_size column_count
@@ -67,8 +72,24 @@
 
     private
 
     def _to_hugeint(row, col)
       _to_string(row, col).to_i
+    end
+
+    def _to_hugeint_internal(row, col)
+      lower, upper = __to_hugeint_internal(row, col)
+      upper * Converter::HALF_HUGEINT + lower
+    end
+
+    def _to_decimal(row, col)
+      BigDecimal(_to_string(row, col))
+    end
+
+    def _to_decimal_internal(row, col)
+      lower, upper, _width, scale = __to_decimal_internal(row, col)
+      v = (upper * Converter::HALF_HUGEINT + lower).to_s
+      v[-scale, 0] = '.'
+      BigDecimal(v)
     end
   end
 end