From ab6d4d7de50b2665ca87dc7d5b67798bf776b15b Mon Sep 17 00:00:00 2001
From: Drew Banin <drew@fishtownanalytics.com>
Date: Mon, 11 Feb 2019 13:04:58 -0500
Subject: [PATCH] use frozenset for adapter specific configs, add bq configs

---
 core/dbt/adapters/base/impl.py                   | 4 +++-
 plugins/bigquery/dbt/adapters/bigquery/impl.py   | 2 ++
 plugins/redshift/dbt/adapters/redshift/impl.py   | 2 +-
 plugins/snowflake/dbt/adapters/snowflake/impl.py | 2 +-
 4 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/core/dbt/adapters/base/impl.py b/core/dbt/adapters/base/impl.py
index 08b0127cc40..8f2c177175b 100644
--- a/core/dbt/adapters/base/impl.py
+++ b/core/dbt/adapters/base/impl.py
@@ -110,7 +110,9 @@ class BaseAdapter(object):
     # This should be an implementation of BaseConnectionManager
     ConnectionManager = None
 
-    AdapterSpecificConfigs = set()
+    # A set of clobber config fields accepted by this adapter
+    # for use in materializations
+    AdapterSpecificConfigs = frozenset()
 
     def __init__(self, config):
         self.config = config
diff --git a/plugins/bigquery/dbt/adapters/bigquery/impl.py b/plugins/bigquery/dbt/adapters/bigquery/impl.py
index dab04bff37a..e4e7778a9cb 100644
--- a/plugins/bigquery/dbt/adapters/bigquery/impl.py
+++ b/plugins/bigquery/dbt/adapters/bigquery/impl.py
@@ -51,6 +51,8 @@ class BigQueryAdapter(BaseAdapter):
     Column = dbt.schema.BigQueryColumn
     ConnectionManager = BigQueryConnectionManager
 
+    AdapterSpecificConfigs = frozenset({"cluster_by", "partition_by"})
+
     ###
     # Implementations of abstract methods
     ###
diff --git a/plugins/redshift/dbt/adapters/redshift/impl.py b/plugins/redshift/dbt/adapters/redshift/impl.py
index 867deb17165..08f0dcff0e4 100644
--- a/plugins/redshift/dbt/adapters/redshift/impl.py
+++ b/plugins/redshift/dbt/adapters/redshift/impl.py
@@ -7,7 +7,7 @@
 class RedshiftAdapter(PostgresAdapter):
     ConnectionManager = RedshiftConnectionManager
 
-    AdapterSpecificConfigs = {"sort_type", "dist", "sort", "bind"}
+    AdapterSpecificConfigs = frozenset({"sort_type", "dist", "sort", "bind"})
 
     @classmethod
     def date_function(cls):
diff --git a/plugins/snowflake/dbt/adapters/snowflake/impl.py b/plugins/snowflake/dbt/adapters/snowflake/impl.py
index 5a51107af67..00da5026482 100644
--- a/plugins/snowflake/dbt/adapters/snowflake/impl.py
+++ b/plugins/snowflake/dbt/adapters/snowflake/impl.py
@@ -14,7 +14,7 @@ class SnowflakeAdapter(SQLAdapter):
     Relation = SnowflakeRelation
     ConnectionManager = SnowflakeConnectionManager
 
-    AdapterSpecificConfigs = {"transient"}
+    AdapterSpecificConfigs = frozenset({"transient"})
 
     @classmethod
     def date_function(cls):