From 9868624bd7dda2a0700bb25bc5442e6659901f36 Mon Sep 17 00:00:00 2001
From: Martin Klepsch <martinklepsch@googlemail.com>
Date: Thu, 19 Apr 2018 15:53:34 +0200
Subject: [PATCH] migration: add unique constraint on transaction_hash column

---
 .../migrations/20180419153800-enforce-unique-tx-hash.down.sql    | 1 +
 .../migrations/20180419153800-enforce-unique-tx-hash.up.sql      | 1 +
 2 files changed, 2 insertions(+)
 create mode 100644 resources/migrations/20180419153800-enforce-unique-tx-hash.down.sql
 create mode 100644 resources/migrations/20180419153800-enforce-unique-tx-hash.up.sql

diff --git a/resources/migrations/20180419153800-enforce-unique-tx-hash.down.sql b/resources/migrations/20180419153800-enforce-unique-tx-hash.down.sql
new file mode 100644
index 0000000..7f1994f
--- /dev/null
+++ b/resources/migrations/20180419153800-enforce-unique-tx-hash.down.sql
@@ -0,0 +1 @@
+ALTER TABLE issues DROP CONSTRAINT transaction_hash_uniq;
diff --git a/resources/migrations/20180419153800-enforce-unique-tx-hash.up.sql b/resources/migrations/20180419153800-enforce-unique-tx-hash.up.sql
new file mode 100644
index 0000000..ff92e04
--- /dev/null
+++ b/resources/migrations/20180419153800-enforce-unique-tx-hash.up.sql
@@ -0,0 +1 @@
+ALTER TABLE issues ADD CONSTRAINT transaction_hash_uniq UNIQUE (transaction_hash);