From: Yutian Li <hotpxless@gmail.com>
Date: Thu, 23 Sep 2021 17:33:56 +0000 (-0400)
Subject: Fix serialization of UnsupportedCompilationError
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F7078%2Fhead;p=thirdparty%2Fsqlalchemy%2Fsqlalchemy.git

Fix serialization of UnsupportedCompilationError

Fixes  #7077
---

diff --git a/lib/sqlalchemy/exc.py b/lib/sqlalchemy/exc.py
index a24cf7ba49..978b2ebd09 100644
--- a/lib/sqlalchemy/exc.py
+++ b/lib/sqlalchemy/exc.py
@@ -188,6 +188,12 @@ class UnsupportedCompilationError(CompileError):
             "Compiler %r can't render element of type %s%s"
             % (compiler, element_type, ": %s" % message if message else "")
         )
+        self.compiler = compiler
+        self.element_type = element_type
+        self.message = message
+
+    def __reduce__(self):
+        return self._class__, (self.compiler, self.element_type, self.message)
 
 
 class IdentifierError(SQLAlchemyError):