Validate NOT NULL on security_findings.uuid column

Changelog: changed

db/post_migrate/20220217135229_validate_not_null_constraint_on_security_findings_uuid.rb

+# frozen_string_literal: true
+
+class ValidateNotNullConstraintOnSecurityFindingsUuid < Gitlab::Database::Migration[1.0]
+  disable_ddl_transaction!
+
+  def up
+    validate_not_null_constraint(:security_findings, :uuid)
+  end
+
+  def down
+    # no-op
+  end
+end

db/schema_migrations/20220217135229

+3223f741799216ee6afb4daafbcebfa09bd722d461dd4d64fcbda7d8700ae235
\ No newline at end of file

db/structure.sql

@@ -19592,6 +19592,7 @@ CREATE TABLE security_findings (
     deduplicated boolean DEFAULT false NOT NULL,
     uuid uuid,
     overridden_uuid uuid,
+    CONSTRAINT check_6c2851a8c9 CHECK ((uuid IS NOT NULL)),
     CONSTRAINT check_b9508c6df8 CHECK ((char_length(project_fingerprint) <= 40))
 );
 
@@ -23111,9 +23112,6 @@ ALTER TABLE ONLY chat_teams
 ALTER TABLE vulnerability_scanners
     ADD CONSTRAINT check_37608c9db5 CHECK ((char_length(vendor) <= 255)) NOT VALID;
 
-ALTER TABLE security_findings
-    ADD CONSTRAINT check_6c2851a8c9 CHECK ((uuid IS NOT NULL)) NOT VALID;
-
 ALTER TABLE sprints
     ADD CONSTRAINT check_ccd8a1eae0 CHECK ((start_date IS NOT NULL)) NOT VALID;