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ALTER TABLE "tag_classes" ADD COLUMN "tag_type_code" varchar(50) NOT NULL;--> statement-breakpoint
ALTER TABLE "tag_classes" ADD CONSTRAINT "tag_classes_tag_type_code_tag_subfields_tag_type_code_fk" FOREIGN KEY ("tag_type_code") REFERENCES "public"."tag_subfields"("tag_type_code") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "tag_subfields" ADD CONSTRAINT "tag_subfields_tag_type_code_unique" UNIQUE("tag_type_code");
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