17 lines
610 B
SQL
17 lines
610 B
SQL
-- +goose Up
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-- +goose StatementBegin
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ALTER TABLE media_assets
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ADD COLUMN IF NOT EXISTS source_asset_id bigint;
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COMMENT ON COLUMN media_assets.source_asset_id IS '派生来源资源ID：preview 产物可指向对应 main 资源；用于建立 preview/main 的 1:1 追溯关系';
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CREATE INDEX IF NOT EXISTS ix_media_assets_tenant_source_asset_id ON media_assets (tenant_id, source_asset_id);
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-- +goose StatementEnd
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-- +goose Down
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-- +goose StatementBegin
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DROP INDEX IF EXISTS ix_media_assets_tenant_source_asset_id;
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ALTER TABLE media_assets DROP COLUMN IF EXISTS source_asset_id;
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-- +goose StatementEnd
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