diff --git a/bijoe/engine.py b/bijoe/engine.py
index 9783b8f..30e54eb 100644
--- a/bijoe/engine.py
+++ b/bijoe/engine.py
@@ -67,7 +67,7 @@ class EngineDimension(object):
         with self.engine.get_cursor() as cursor:
             sql = self.members_query
             if not sql:
-                table_expression = self.engine_cube.fact_table
+                table_expression = '"%s"' % self.engine_cube.fact_table
                 if self.join:
                     table_expression = self.engine_cube.build_table_expression(
                         self.join, self.engine_cube.fact_table)
@@ -116,7 +116,7 @@ class SchemaJSONDimension(schemas.Dimension):
                (self.name, self.name, self.name))
         self.members_query = sql.format(json_field=json_field)
         self.filter_expression = ('("{fact_table}".id IS NULL '
-                                  'OR ("{fact_table}"."%s"->>\'%s\') IN (%%s))'
+                                  'OR ("{fact_table}.%s"->>\'%s\') IN (%%s))'
                                   % (json_field, name))
         self.filter_needs_join = False
 
@@ -223,7 +223,7 @@ class EngineCube(object):
 
     def count(self):
         with self.engine.get_cursor() as cursor:
-            cursor.execute('SELECT count(%s) FROM %s' % (self.key, self.fact_table))
+            cursor.execute('SELECT count(%s) FROM "%s"' % (self.key, self.fact_table))
             return cursor.fetchone()[0]
 
     def get_join(self, name):
@@ -276,7 +276,7 @@ class EngineCube(object):
                 if measure.expression not in projections:
                     projections.append(measure.expression + ' AS ' + measure.name)
             sql = 'SELECT ' + ', '.join(projections)
-            table_expression = ' %s' % self.cube.fact_table
+            table_expression = ' "%s"' % self.cube.fact_table
             if joins:
                 table_expression = self.build_table_expression(
                     joins, self.fact_table, other_conditions=join_conditions)
@@ -330,7 +330,10 @@ class EngineCube(object):
             join_tree.setdefault(master_table, {}).setdefault(join.kind, {})[join.name] = join
 
         def build_table_expression_helper(join_tree, table_name, alias=None, top=True, other_conditions=None):
-            sql = table_name
+            if table_name.strip().startswith('('):
+                sql = table_name
+            else:
+                sql = '"%s"' % table_name
             if alias:
                 sql += ' AS "%s"' % alias
             add_paren = False