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authorMike Bayer <mike_mp@zzzcomputing.com>2015-07-15 13:07:32 -0400
committerMike Bayer <mike_mp@zzzcomputing.com>2015-07-15 13:07:32 -0400
commiteed8bcef3ae1341cc9c25f5abff55a9ff880cfac (patch)
treef448229c7440fe12968cb6f1e1e249b7cdd14717 /lib/sqlalchemy/dialects/postgresql/base.py
parentb68c9ac93eea62a1f4ae2c0701e5af7c432e9432 (diff)
downloadsqlalchemy-eed8bcef3ae1341cc9c25f5abff55a9ff880cfac.tar.gz
- add a note, references #3487
Diffstat (limited to 'lib/sqlalchemy/dialects/postgresql/base.py')
-rw-r--r--lib/sqlalchemy/dialects/postgresql/base.py10
1 files changed, 10 insertions, 0 deletions
diff --git a/lib/sqlalchemy/dialects/postgresql/base.py b/lib/sqlalchemy/dialects/postgresql/base.py
index 22c66dbbb..dc7987d74 100644
--- a/lib/sqlalchemy/dialects/postgresql/base.py
+++ b/lib/sqlalchemy/dialects/postgresql/base.py
@@ -883,6 +883,16 @@ class ARRAY(sqltypes.Concatenable, sqltypes.TypeEngine):
mytable.c.data[2:7]: [1, 2, 3]
})
+ .. note::
+
+ Multi-dimensional support for the ``[]`` operator is not supported
+ in SQLAlchemy 1.0. Please use the :func:`.type_coerce` function
+ to cast an intermediary expression to ARRAY again as a workaround::
+
+ expr = type_coerce(my_array_column[5], ARRAY(Integer))[6]
+
+ Multi-dimensional support will be provided in a future release.
+
:class:`.ARRAY` provides special methods for containment operations,
e.g.::