From 0ed8ec98685fee121851f3b55f1d1b490d3eab6d Mon Sep 17 00:00:00 2001
From: Ruslan Talpa <ruslan.talpa@gmail.com>
Date: Sat, 24 Oct 2015 22:50:03 +0300
Subject: [PATCH] Fix for #321

---
 src/PostgREST/PgStructure.hs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/PostgREST/PgStructure.hs b/src/PostgREST/PgStructure.hs
index 1217cf74b..4fa3d35be 100644
--- a/src/PostgREST/PgStructure.hs
+++ b/src/PostgREST/PgStructure.hs
@@ -105,7 +105,7 @@ allRelations = do
            LATERAL (SELECT array_agg(cols.attname) AS cols,
                            array_agg(cols.attnum)  AS nums,
                            array_agg(refs.attname) AS refs
-                      FROM unnest(conkey, confkey) AS _(col, ref),
+                      FROM ( SELECT unnest(conkey) AS col, unnest(confkey) AS ref) k,
                            LATERAL (SELECT * FROM pg_attribute
                                      WHERE attrelid = conrelid AND attnum = col)
                                 AS cols,