CREATE TABLE "qna" (
	"id" serial PRIMARY KEY NOT NULL,
	"title" varchar(255) NOT NULL,
	"content" text NOT NULL,
	"author" integer NOT NULL,
	"created_at" timestamp DEFAULT now() NOT NULL,
	"updated_at" timestamp DEFAULT now() NOT NULL,
	"is_deleted" boolean DEFAULT false NOT NULL,
	"deleted_at" timestamp
);
--> statement-breakpoint
CREATE TABLE "qna_answer" (
	"id" serial PRIMARY KEY NOT NULL,
	"qna_id" integer NOT NULL,
	"content" text NOT NULL,
	"author" integer NOT NULL,
	"created_at" timestamp DEFAULT now() NOT NULL,
	"updated_at" timestamp DEFAULT now() NOT NULL,
	"is_deleted" boolean DEFAULT false NOT NULL,
	"deleted_at" timestamp
);
--> statement-breakpoint
CREATE TABLE "qna_comments" (
	"id" serial PRIMARY KEY NOT NULL,
	"content" text NOT NULL,
	"author" integer NOT NULL,
	"answer_id" integer NOT NULL,
	"parent_comment_id" integer,
	"created_at" timestamp DEFAULT now() NOT NULL,
	"updated_at" timestamp DEFAULT now() NOT NULL,
	"is_deleted" boolean DEFAULT false NOT NULL,
	"deleted_at" timestamp
);
--> statement-breakpoint
ALTER TABLE "qna" ADD CONSTRAINT "qna_author_users_id_fk" FOREIGN KEY ("author") REFERENCES "public"."users"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "qna_answer" ADD CONSTRAINT "qna_answer_qna_id_qna_id_fk" FOREIGN KEY ("qna_id") REFERENCES "public"."qna"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "qna_answer" ADD CONSTRAINT "qna_answer_author_users_id_fk" FOREIGN KEY ("author") REFERENCES "public"."users"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "qna_comments" ADD CONSTRAINT "qna_comments_author_users_id_fk" FOREIGN KEY ("author") REFERENCES "public"."users"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
ALTER TABLE "qna_comments" ADD CONSTRAINT "qna_comments_answer_id_qna_answer_id_fk" FOREIGN KEY ("answer_id") REFERENCES "public"."qna_answer"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
CREATE INDEX "idx_qna_author" ON "qna" USING btree ("author");--> statement-breakpoint
CREATE INDEX "idx_answer_qna" ON "qna_answer" USING btree ("qna_id");--> statement-breakpoint
CREATE INDEX "idx_answer_author" ON "qna_answer" USING btree ("author");--> statement-breakpoint
CREATE INDEX "idx_comment_answer" ON "qna_comments" USING btree ("answer_id");--> statement-breakpoint
CREATE INDEX "idx_comment_parent" ON "qna_comments" USING btree ("parent_comment_id");