--- /dev/null
+ALTER TABLE #PFX#users DROP CONSTRAINT #PFX#users_guar_code_fkey;
+ALTER TABLE #PFX#users ADD CONSTRAINT #PFX#users_guar_code_fkey FOREIGN KEY (guar_code) REFERENCES #PFX#users(code) MATCH FULL;
+
+ALTER TABLE #PFX#users ALTER COLUMN guar_code DROP DEFAULT; --MF
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