Merge pull request #46 from adela-bytebase/adela-bytebase-patch-42

Modify username column to allow NULL values

Author: adela-bytebase

migrations-semver/1.0.2_create_t3.sql

@@ -0,0 +1,4 @@
+CREATE TABLE "public"."t3" (
+    "id" serial PRIMARY KEY,
+    "username" text NOT NULL
+);