lib/arel/visitors/postgresql.rb


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

module Arel
  module Visitors
    class PostgreSQL < Arel::Visitors::ToSql
      private

      def visit_Arel_Nodes_Matches o
        "#{visit o.left} ILIKE #{visit o.right}"
      end

      def visit_Arel_Nodes_DoesNotMatch o
        "#{visit o.left} NOT ILIKE #{visit o.right}"
      end

      def visit_Arel_Nodes_Regexp o
        "#{visit o.left} ~ #{visit o.right}"
      end

      def visit_Arel_Nodes_NotRegexp o
        "#{visit o.left} !~ #{visit o.right}"
      end

      def visit_Arel_Nodes_DistinctOn o
        "DISTINCT ON ( #{visit o.expr} )"
      end
    end
  end
end