fix: feature_strategies paramter column should not be null (#1024)

src/migrations/20211013093114-feature-strategies-parameters-not-null.js

@@ -0,0 +1,16 @@
+'use strict';
+
+exports.up = function (db, cb) {
+    db.runSql(
+        `
+          ALTER TABLE feature_strategies ALTER COLUMN parameters SET DEFAULT '{}';
+          UPDATE feature_strategies set parameters = '{}' where parameters is null;
+          ALTER TABLE feature_strategies ALTER COLUMN parameters SET NOT NULL;
+          `,
+        cb,
+    );
+};
+
+exports.down = function (db, cb) {
+    cb();
+};