From 35eccb6fa3f8f617215eebe44f34af4668302162 Mon Sep 17 00:00:00 2001
From: ataft <11670864+ataft@users.noreply.github.com>
Date: Mon, 26 Sep 2022 16:08:39 -0700
Subject: [PATCH] Remove 'IF EXISTS'

Redshift does not support IF EXISTS. It is not required anyways since this drop is from a query.
---
 macros/redshift__create_constraints.sql | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/macros/redshift__create_constraints.sql b/macros/redshift__create_constraints.sql
index 70f6286..4594890 100644
--- a/macros/redshift__create_constraints.sql
+++ b/macros/redshift__create_constraints.sql
@@ -247,7 +247,7 @@
     {%- for constraint_name in constraint_list.columns["constraint_name"].values() -%}
         {%- do log("Dropping constraint: " ~ constraint_name ~ " from table " ~ relation, info=false) -%}
         {%- call statement('drop_constraint_cascade', fetch_result=False, auto_begin=True) -%}
-        ALTER TABLE {{relation}} DROP CONSTRAINT IF EXISTS "{{constraint_name}}" CASCADE
+        ALTER TABLE {{relation}} DROP CONSTRAINT "{{constraint_name}}" CASCADE
         {%- endcall -%}
         {{ adapter.commit() }}
     {% endfor %}