Support SQL::Identifier for Database#tables :schema option values on …

…PostgreSQL

CHANGELOG

@@ -1,5 +1,7 @@
 === master
 
+* Support SQL::Identifier for Database#tables :schema option values on PostgreSQL (jeremyevans)
+
 * Support generating rcte queries using UNION or UNION ALL in the rcte plugin (jonathanfrias) (#2107)
 
 * Make Database#table_exists? on PostgreSQL handle lock or statement timeout errors as evidence the table exists (jeremyevans) (#2106)

lib/sequel/adapters/shared/postgres.rb

@@ -1513,7 +1513,11 @@ def drop_view_sql(name, opts=OPTS)
       # currently visible schemas.
       def filter_schema(ds, opts)
         expr = if schema = opts[:schema]
-          schema.to_s
+          if schema.is_a?(SQL::Identifier)
+            schema.value.to_s
+          else
+            schema.to_s
+          end
         else
           Sequel.function(:any, Sequel.function(:current_schemas, false))
         end

spec/adapters/postgres_spec.rb

@@ -2508,6 +2508,9 @@ def @Member.name; :Member; end
     @d.create_schema(:sequel)
     @d.create_schema(:sequel, :if_not_exists=>true) if @d.server_version >= 90300
     @d.create_table(Sequel[:sequel][:test]){Integer :a}
+    @d.tables(:schema=>:sequel).must_equal [:test]
+    @d.tables(:schema=>'sequel').must_equal [:test]
+    @d.tables(:schema=>Sequel[:sequel]).must_equal [:test]
     @d.drop_schema(:sequel, :if_exists=>true, :cascade=>true)
   end