- Fixed bug where index reflection would mis-interpret indkey values

when using the pypostgresql adapter, which returns these values
as lists vs. psycopg2's return type of string.
[ticket:2855]

2 files changed, 5 insertions, 2 deletions

diff --git a/lib/sqlalchemy/__init__.py b/lib/sqlalchemy/__init__.py
index f40603258..b41f3f2bc 100644
--- a/lib/sqlalchemy/__init__.py
+++ b/lib/sqlalchemy/__init__.py
@@ -116,7 +116,7 @@ from .schema import (
 from .inspection import inspect
 from .engine import create_engine, engine_from_config
 
-__version__ = '0.9.0b1'
+__version__ = '0.9.0b2'
 
 def __go(lcls):
     global __all__
diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py
index 5c88ee023..e1dc4af71 100644
--- a/lib/sqlalchemy/dialects/postgresql/base.py
+++ b/lib/sqlalchemy/dialects/postgresql/base.py
@@ -1963,11 +1963,14 @@ class PGDialect(default.DefaultDialect):
         table_oid = self.get_table_oid(connection, table_name, schema,
                                        info_cache=kw.get('info_cache'))
 
+        # cast indkey as varchar since it's an int2vector,
+        # returned as a list by some drivers such as pypostgresql
+
         IDX_SQL = """
           SELECT
               i.relname as relname,
               ix.indisunique, ix.indexprs, ix.indpred,
-              a.attname, a.attnum, ix.indkey
+              a.attname, a.attnum, ix.indkey::varchar
           FROM
               pg_class t
                     join pg_index ix on t.oid = ix.indrelid