Better migration locking behaviour

2019-10-22 13:41:21 +02:00
parent 5aced1b8b1
commit 6ab4c1e4d3
6 changed files with 32 additions and 2 deletions
--- a/sql/migrations/create.sql
+++ b/sql/migrations/create.sql
@@ -2,4 +2,12 @@ CREATE TABLE IF NOT EXISTS migrations (
    id integer GENERATED BY DEFAULT AS IDENTITY PRIMARY KEY,
    name text UNIQUE NOT NULL,
    applied_at timestamptz NOT NULL DEFAULT CURRENT_TIMESTAMP
-)
+);
+
+CREATE TABLE IF NOT EXISTS migrations_lock (
+    id integer PRIMARY KEY,
+    is_locked boolean NOT NULL DEFAULT false
+);
+
+INSERT INTO migrations_lock (id, is_locked) VALUES (1, false) 
+    ON CONFLICT DO NOTHING;