diff --git a/ibis/backends/base/sql/alchemy/registry.py b/ibis/backends/base/sql/alchemy/registry.py
index b1c12788c55b..af2bc39858cf 100644
--- a/ibis/backends/base/sql/alchemy/registry.py
+++ b/ibis/backends/base/sql/alchemy/registry.py
@@ -117,9 +117,11 @@ def get_col_or_deferred_col(sa_table, colname):
     where `table_set` is `sa_table` above.
     """
     try:
-        out_expr = sa_table.c[colname]
+        col = sa_table.c[colname]
     except KeyError:
         out_expr = sa.column(colname)
+    else:
+        out_expr = sa_table.corresponding_column(col)
 
     return out_expr
 
diff --git a/pyproject.toml b/pyproject.toml
index ba6336d05b67..37876bdef16d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -198,6 +198,7 @@ filterwarnings = [
   'ignore:Dialect postgresql.psycopg2 will not make use of SQL compilation caching:',
   'ignore:The URL\.__to_string__ method is deprecated:',
   "ignore:UserDefinedType .* will not produce a cache key because:",
+  "ignore:The SelectBase.c:",
   # this is coming from sqlalchemy 1.4, and indicates the bug we're tracking in #3526
   'ignore:SELECT statement has a cartesian product between FROM element\(s\):',
   # ibis