Prefer Rational over BigDecimal.

Author: ioquatix

lib/db/postgres/native/types.rb

@@ -91,7 +91,7 @@ def parse(string)
 						if match = string.match(/\A(\d+)-(\d+)-(\d+) (\d+):(\d+):(\d+(?:\.\d+)?)([-+]\d\d(?::\d\d)?)?\z/)
 							parts = match.captures
 
-							parts[5] = BigDecimal(parts[5])
+							parts[5] = Rational(parts[5])
 
 							if parts[6].nil?
 								parts[6] = '+00'

test/db/postgres/connection/date_time.rb

@@ -32,25 +32,25 @@
 	let(:connection) {subject.new(**CREDENTIALS)}
 
 	# PG produces: "2022-11-11 12:38:59.123456+00"
-	it_behaves_like ATimestamp, 'UTC', '2022-11-11 23:38:59.123456+11', Time.new(2022, 11, 11, 23, 38, BigDecimal('59.123456'), '+11:00')
+	it_behaves_like ATimestamp, 'UTC', '2022-11-11 23:38:59.123456+11', Time.new(2022, 11, 11, 23, 38, Rational('59.123456'), '+11:00')
 
 	# PG produces: "2022-11-11 12:38:59+00"
-	it_behaves_like ATimestamp, 'UTC', '2022-11-11 23:38:59+11', Time.new(2022, 11, 11, 23, 38, BigDecimal('59'), '+11:00')
+	it_behaves_like ATimestamp, 'UTC', '2022-11-11 23:38:59+11', Time.new(2022, 11, 11, 23, 38, Rational('59'), '+11:00')
 
 	# PG produces: "2022-11-11 23:38:59.123456+00"
-	it_behaves_like ATimestamp, 'UTC', '2022-11-11 23:38:59.123456', Time.new(2022, 11, 11, 23, 38, BigDecimal('59.123456'), '+00:00')
+	it_behaves_like ATimestamp, 'UTC', '2022-11-11 23:38:59.123456', Time.new(2022, 11, 11, 23, 38, Rational('59.123456'), '+00:00')
 
 	# PG produces: "2022-11-11 23:38:59+11"
-	it_behaves_like ATimestamp, 'Australia/Sydney', '2022-11-11 23:38:59', Time.new(2022, 11, 11, 23, 38, BigDecimal('59'), '+11:00')
+	it_behaves_like ATimestamp, 'Australia/Sydney', '2022-11-11 23:38:59', Time.new(2022, 11, 11, 23, 38, Rational('59'), '+11:00')
 
 	# PG produces: "2022-11-12 06:08:59.123456+11"
-	it_behaves_like ATimestamp, 'Australia/Sydney', '2022-11-11 23:38:59.123456+04:30', Time.new(2022, 11, 11, 23, 38, BigDecimal('59.123456'), '+04:30')
+	it_behaves_like ATimestamp, 'Australia/Sydney', '2022-11-11 23:38:59.123456+04:30', Time.new(2022, 11, 11, 23, 38, Rational('59.123456'), '+04:30')
 
 	# PG produces: "2000-01-01 05:30:00+05:30"
 	it_behaves_like ATimestamp, 'Asia/Kolkata', '2000-01-01 00:00:00+00', Time.new(2000, 1, 1, 5, 30, 0, '+05:30')
 
 	# PG produces: "2022-11-11 23:38:59+01"
-	it_behaves_like ATimestamp, 'Europe/Lisbon', '2022-11-11 23:38:59+01', Time.new(2022, 11, 11, 23, 38, BigDecimal('59'), '+01:00')
+	it_behaves_like ATimestamp, 'Europe/Lisbon', '2022-11-11 23:38:59+01', Time.new(2022, 11, 11, 23, 38, Rational('59'), '+01:00')
 
 	# PG produces: "infinity"
 	it_behaves_like ATimestamp, 'UTC', 'infinity', 'infinity'