From 4a7c3631a6608436533506f629eafecfe00a16ee Mon Sep 17 00:00:00 2001
From: Sean Corfield <sean@corfield.org>
Date: Sat, 14 Jan 2023 15:35:03 -0800
Subject: [PATCH] fix #454 by allowing - to be variadic

---
 CHANGELOG.md             |  1 +
 src/honey/sql.cljc       |  2 +-
 test/honey/ops_test.cljc | 12 ++++++++++++
 3 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100644 test/honey/ops_test.cljc

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 650a38a..953e519 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 # Changes
 
 * 2.4.next in progress
+  * Fix [#454](https://github.com/seancorfield/honeysql/issues/454) by allowing `-` to be variadic.
   * Address [#452](https://github.com/seancorfield/honeysql/pull/452) by adding `:replace-into` to the core SQL supported, instead of just for the MySQL and SQLite dialects (so the latter is not needed yet).
   * Address [#451](https://github.com/seancorfield/honeysql/issues/451) by adding a test for it, showing how `:nest` produces the desired result.
   * Address [#447](https://github.com/seancorfield/honeysql/issues/447) by updating GitHub Actions and dependencies.
diff --git a/src/honey/sql.cljc b/src/honey/sql.cljc
index 200aaad..c522c13 100644
--- a/src/honey/sql.cljc
+++ b/src/honey/sql.cljc
@@ -1279,7 +1279,7 @@
       (atom)))
 
 (def ^:private op-ignore-nil (atom #{:and :or}))
-(def ^:private op-variadic   (atom #{:and :or :+ :* :|| :&&}))
+(def ^:private op-variadic   (atom #{:and :or :+ :* :- :|| :&&}))
 
 (defn- unwrap [x opts]
   (if-let [m (meta x)]
diff --git a/test/honey/ops_test.cljc b/test/honey/ops_test.cljc
new file mode 100644
index 0000000..870b473
--- /dev/null
+++ b/test/honey/ops_test.cljc
@@ -0,0 +1,12 @@
+;; copyright (c) 2023 sean corfield, all rights reserved
+
+(ns honey.ops-test
+  (:refer-clojure :exclude [format])
+  (:require [clojure.test :refer [deftest is]]
+            [honey.sql :as sut]
+            [honey.sql :as sql]))
+
+(deftest issue-454
+  (is (= ["SELECT a - b - c AS x"]
+         (-> {:select [[[:- :a :b :c] :x]]}
+             (sql/format)))))