From 79e0eaed7dd6bc0472d1770a3ea26dbf2c20547b Mon Sep 17 00:00:00 2001
From: Christophe Duong <christophe.duong@gmail.com>
Date: Mon, 5 Apr 2021 20:31:40 +0200
Subject: [PATCH 1/2] Postgres also have an alternative concat binary operation
 (#296)

---
 macros/cross_db_utils/concat.sql | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/macros/cross_db_utils/concat.sql b/macros/cross_db_utils/concat.sql
index 32443cbd..b75650b0 100644
--- a/macros/cross_db_utils/concat.sql
+++ b/macros/cross_db_utils/concat.sql
@@ -13,6 +13,11 @@
 {% endmacro %}
 
 
+{% macro postgres__concat(fields) %}
+    {{ dbt_utils.alternative_concat(fields) }}
+{% endmacro %}
+
+
 {% macro redshift__concat(fields) %}
     {{ dbt_utils.alternative_concat(fields) }}
 {% endmacro %}

From 9d1d24dcd974cb8b2801c021790a41c4d0af08c6 Mon Sep 17 00:00:00 2001
From: Claire Carroll <20294432+clrcrl@users.noreply.github.com>
Date: Wed, 19 May 2021 12:04:27 -0400
Subject: [PATCH 2/2] Update default implementation of concat macro

---
 CHANGELOG.md                     |  1 +
 macros/cross_db_utils/concat.sql | 21 +--------------------
 2 files changed, 2 insertions(+), 20 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0382042d..de3f42c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -42,6 +42,7 @@ If you were relying on the position to match up your optional arguments, this ma
 
 
 ## Under the hood
+* Update the default implementation of concat macro to use `||` operator ([#373](https://github.com/fishtown-analytics/dbt-utils/pull/314) [@ChristopheDuong](https://github.com/ChristopheDuong)). Note this may be a breaking change for spark users.
 
 # dbt-utils v0.6.5
 ## Features
diff --git a/macros/cross_db_utils/concat.sql b/macros/cross_db_utils/concat.sql
index b75650b0..7f26e369 100644
--- a/macros/cross_db_utils/concat.sql
+++ b/macros/cross_db_utils/concat.sql
@@ -5,24 +5,5 @@
 {%- endmacro %}
 
 {% macro default__concat(fields) -%}
-    concat({{ fields|join(', ') }})
-{%- endmacro %}
-
-{% macro alternative_concat(fields) %}
     {{ fields|join(' || ') }}
-{% endmacro %}
-
-
-{% macro postgres__concat(fields) %}
-    {{ dbt_utils.alternative_concat(fields) }}
-{% endmacro %}
-
-
-{% macro redshift__concat(fields) %}
-    {{ dbt_utils.alternative_concat(fields) }}
-{% endmacro %}
-
-
-{% macro snowflake__concat(fields) %}
-    {{ dbt_utils.alternative_concat(fields) }}
-{% endmacro %}
+{%- endmacro %}