# File lib/sequel/extensions/mssql_emulate_lateral_with_apply.rb, line 58
58:       def from(*source, &block)
59:         virtual_row_columns(source, block)
60:         lateral, source = source.partition{|t| t.is_a?(Sequel::Dataset) && t.opts[:lateral] || (t.is_a?(Sequel::SQL::AliasedExpression) && t.expression.is_a?(Sequel::Dataset) && t.expression.opts[:lateral])} unless source.empty?
61:         return super(*source, &nil) if !lateral || lateral.empty?
62: 
63:         ds = from(*source)
64:         lateral.each do |l|
65:           l = if l.is_a?(Sequel::SQL::AliasedExpression)
66:             l.expression.clone(:lateral=>nil).as(l.alias)
67:           else
68:             l.clone(:lateral=>nil)
69:           end
70:           ds = ds.cross_apply(l)
71:         end
72:         ds
73:       end

    # File lib/sequel/extensions/mssql_emulate_lateral_with_apply.rb, line 37
37:       def join_table(type, table, expr=nil, *)
38:         if table.is_a?(Dataset) && table.opts[:lateral]
39:           table = table.clone(:lateral=>nil)
40:           case type
41:           when :inner
42:             type = :cross_apply
43:             table = table.where(expr)
44:             expr = nil
45:           when :cross
46:             type = :cross_apply
47:           when :left, :left_outer
48:             type = :outer_apply
49:             table = table.where(expr)
50:             expr = nil
51:           end
52:         end
53:         super
54:       end

    # File lib/sequel/extensions/mssql_emulate_lateral_with_apply.rb, line 77
77:       def supports_lateral_subqueries?
78:         true
79:       end