42 lines
1.2 KiB
MySQL
42 lines
1.2 KiB
MySQL
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CREATE TABLE IF NOT EXISTS public.messages_attachments
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(
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"messageId" uuid NOT NULL,
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"userStorageId" uuid NOT NULL
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);
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM pg_constraint
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WHERE conname = 'messages_attachments_pkey'
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AND conrelid = 'public.messages_attachments'::regclass
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) THEN
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ALTER TABLE public.messages_attachments
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ADD CONSTRAINT messages_attachments_pkey PRIMARY KEY ("messageId", "userStorageId");
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END IF;
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END $$;
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DO $$ BEGIN IF NOT EXISTS (
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SELECT 1 FROM pg_constraint
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WHERE conname = 'msg_attach_msgid'
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AND conrelid = 'public.messages_attachments'::regclass
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) THEN
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ALTER TABLE public.messages_attachments
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ADD CONSTRAINT msg_attach_msgid
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FOREIGN KEY ("messageId") REFERENCES public.messages (messageid)
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ON UPDATE CASCADE ON DELETE CASCADE;
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END IF;
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END $$;
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DO $$ BEGIN IF NOT EXISTS (
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SELECT 1 FROM pg_constraint
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WHERE conname = 'msg_attach_storageid'
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AND conrelid = 'public.messages_attachments'::regclass
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) THEN
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ALTER TABLE public.messages_attachments
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ADD CONSTRAINT msg_attach_storageid
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FOREIGN KEY ("userStorageId") REFERENCES public.users_storage (user_storage_id)
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ON UPDATE CASCADE ON DELETE CASCADE;
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END IF;
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END $$;
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