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-rw-r--r--lib/sqlalchemy/dialects/oracle/cx_oracle.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/sqlalchemy/dialects/oracle/cx_oracle.py b/lib/sqlalchemy/dialects/oracle/cx_oracle.py
index a7ce209f4..64526d213 100644
--- a/lib/sqlalchemy/dialects/oracle/cx_oracle.py
+++ b/lib/sqlalchemy/dialects/oracle/cx_oracle.py
@@ -695,8 +695,10 @@ class OracleDialect_cx_oracle(OracleDialect):
# ORA-00028: your session has been killed
# ORA-03114: not connected to ORACLE
# ORA-03113: end-of-file on communication channel
+ # ORA-03135: connection lost contact
# ORA-01033: ORACLE initialization or shutdown in progress
- return error.code in (28, 3114, 3113, 1033)
+ # TODO: Others ?
+ return error.code in (28, 3114, 3113, 3135, 1033)
else:
return False