liquid_feedback_core

annotate update/core-update.v2.2.5-v2.2.6.sql @ 398:806561cce3b1

New table "issue_order" for ordering fields to avoid a bottleneck with locking
author jbe
date Fri Oct 11 20:07:41 2013 +0200 (2013-10-11)
parents 1e4fcb7f0eac
children 782eb17c7ad9
rev   line source
jbe@396 1 BEGIN;
jbe@396 2
jbe@396 3 CREATE OR REPLACE VIEW "liquid_feedback_version" AS
jbe@396 4 SELECT * FROM (VALUES ('2.2.6', 2, 2, 6))
jbe@396 5 AS "subquery"("string", "major", "minor", "revision");
jbe@396 6
jbe@398 7 CREATE TABLE "issue_order" (
jbe@398 8 "id" INT8 PRIMARY KEY REFERENCES "issue" ("id") ON DELETE CASCADE ON UPDATE CASCADE,
jbe@398 9 "order_in_admission_state" INT4,
jbe@398 10 "order_in_open_states" INT4 );
jbe@396 11
jbe@398 12 COMMENT ON TABLE "issue_order" IS 'Ordering information for issues that are not stored in the "issue" table to avoid locking of multiple issues at once';
jbe@398 13
jbe@398 14 COMMENT ON COLUMN "issue_order"."order_in_admission_state" IS 'To be used for sorting issues within an area, when showing only issues in admission state; NULL values sort last; updated by "lf_update_issue_order"';
jbe@398 15 COMMENT ON COLUMN "issue_order"."order_in_open_states" IS 'To be used for sorting issues within an area, when showing all open issues; NULL values sort last; updated by "lf_update_issue_order"';
jbe@396 16
jbe@396 17 CREATE VIEW "issue_supporter_in_admission_state" AS
jbe@396 18 SELECT DISTINCT
jbe@396 19 "issue"."area_id",
jbe@396 20 "issue"."id" AS "issue_id",
jbe@396 21 "supporter"."member_id",
jbe@396 22 "direct_interest_snapshot"."weight"
jbe@396 23 FROM "issue"
jbe@396 24 JOIN "supporter" ON "supporter"."issue_id" = "issue"."id"
jbe@396 25 JOIN "direct_interest_snapshot"
jbe@396 26 ON "direct_interest_snapshot"."issue_id" = "issue"."id"
jbe@396 27 AND "direct_interest_snapshot"."event" = "issue"."latest_snapshot_event"
jbe@396 28 AND "direct_interest_snapshot"."member_id" = "supporter"."member_id"
jbe@396 29 WHERE "issue"."state" = 'admission'::"issue_state";
jbe@396 30
jbe@396 31 COMMENT ON VIEW "issue_supporter_in_admission_state" IS 'Helper view for "lf_update_issue_order" to allow a (proportional) ordering of issues within an area';
jbe@396 32
jbe@397 33 CREATE VIEW "open_issues_ordered_with_minimum_position" AS
jbe@397 34 SELECT
jbe@397 35 "area_id",
jbe@397 36 "id" AS "issue_id",
jbe@397 37 "order_in_admission_state" * 2 - 1 AS "minimum_position"
jbe@398 38 FROM "issue" NATURAL LEFT JOIN "issue_order"
jbe@397 39 WHERE "closed" ISNULL
jbe@397 40 ORDER BY
jbe@397 41 coalesce(
jbe@397 42 "fully_frozen" + "voting_time",
jbe@397 43 "half_frozen" + "verification_time",
jbe@397 44 "accepted" + "discussion_time",
jbe@397 45 "created" + "admission_time"
jbe@397 46 ) - now();
jbe@397 47
jbe@397 48 COMMENT ON VIEW "open_issues_ordered_with_minimum_position" IS 'Helper view for "lf_update_issue_order" to allow a (mixed) ordering of issues within an area';
jbe@397 49
jbe@396 50 COMMIT;

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