CREATE TABLE tbl AS SELECT should return get_alias() for its column

sqlparse/engine/grouping.py

@@ -341,12 +341,15 @@ def group_aliased(tlist):
 def group_functions(tlist):
     has_create = False
     has_table = False
+    has_as = False
     for tmp_token in tlist.tokens:
         if tmp_token.value == 'CREATE':
             has_create = True
         if tmp_token.value == 'TABLE':
             has_table = True
-    if has_create and has_table:
+        if tmp_token.value == 'AS':
+            has_as = True
+    if has_create and has_table and not has_as:
         return
 
     tidx, token = tlist.token_next_by(t=T.Name)

tests/test_grouping.py

@@ -324,6 +324,11 @@ def test_grouping_alias_case():
     assert p.tokens[0].get_alias() == 'foo'
 
 
+def test_grouping_alias_ctas():
+    p = sqlparse.parse('CREATE TABLE tbl1 AS SELECT coalesce(t1.col1, 0) AS col1 FROM t1')[0]
+    assert p.tokens[10].get_alias() == 'col1'
+    assert isinstance(p.tokens[10].tokens[0], sql.Function)
+
 def test_grouping_subquery_no_parens():
     # Not totally sure if this is the right approach...
     # When a THEN clause contains a subquery w/o parenthesis around it *and*