root
25 lines
1.1 KiB
SQL
25 lines
1.1 KiB
SQL
-- Task 7 chat identity snapshots, query and delivery indexes.
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ALTER TABLE "messages" ADD COLUMN "sender_public_id" UUID;
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UPDATE "messages" AS m
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SET "sender_public_id" = p."public_id"
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FROM "anonymous_profiles" AS p
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WHERE p."account_id" = m."sender_id";
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-- Legacy/seed rows may predate anonymous profiles. Preserve an unlinkable
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-- snapshot instead of deriving or exposing the private account identifier.
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UPDATE "messages"
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SET "sender_public_id" = gen_random_uuid()
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WHERE "sender_public_id" IS NULL;
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ALTER TABLE "messages" ALTER COLUMN "sender_public_id" SET NOT NULL;
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-- Outbox events already provide durable message event dedupe.
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CREATE INDEX "messages_conversation_seq_inbox_idx"
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ON "messages" ("conversation_id", "seq");
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CREATE INDEX "conversation_members_account_conversation_idx"
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ON "conversation_members" ("account_id", "conversation_id")
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WHERE "left_at" IS NULL;
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CREATE INDEX "conversations_last_message_cursor_idx"
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ON "conversations" ("last_message_at" DESC, "id" DESC);
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CREATE INDEX "sanctions_active_account_idx"
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ON "sanctions" ("account_id", "starts_at", "expires_at")
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WHERE "revoked_at" IS NULL;
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