# HG changeset patch
# User jbe
# Date 1519295095 -3600
# Node ID 3536fb4148dc055cd99799375986daf210af4dd8
# Parent  eb5f4e4f17d816ab7d652043fac029b69774ca5a# Parent  f28662013308ef2e57aa6744a9e839b5495582b8
Merged experimental workaround for missing spatio-temporal index as commented-out section

diff -r eb5f4e4f17d8 -r 3536fb4148dc core.sql
--- a/core.sql	Mon Oct 23 15:14:11 2017 +0200
+++ b/core.sql	Thu Feb 22 11:24:55 2018 +0100
@@ -4554,6 +4554,86 @@
 
 
 
+------------------------
+-- Geospatial lookups --
+------------------------
+
+/*
+CREATE FUNCTION "closed_initiatives_in_bounding_box"
+  ( "bounding_box_p" EBOX,
+    "limit_p"        INT4 )
+  RETURNS SETOF "initiative"
+  LANGUAGE 'plpgsql' STABLE AS $$
+    DECLARE
+      "limit_v" INT4;
+      "count_v" INT4;
+    BEGIN
+      "limit_v" := "limit_p" + 1;
+      LOOP
+        SELECT count(1) INTO "count_v"
+          FROM "initiative"
+          JOIN "issue" ON "issue"."id" = "initiative"."issue_id"
+          WHERE "issue"."closed" NOTNULL
+          AND GeoJSON_to_ecluster("initiative"."location") && "bounding_box_p"
+          LIMIT "limit_v";
+        IF "count_v" < "limit_v" THEN
+          RETURN QUERY SELECT "initiative".*
+            FROM (
+              SELECT
+                "initiative"."id" AS "initiative_id",
+                "issue"."closed"
+              FROM "initiative"
+              JOIN "issue" ON "issue"."id" = "initiative"."issue_id"
+              WHERE "issue"."closed" NOTNULL
+              AND GeoJSON_to_ecluster("initiative"."location") && "bounding_box_p"
+            ) AS "subquery"
+            JOIN "initiative" ON "initiative"."id" = "subquery"."initiative_id"
+            ORDER BY "subquery"."closed" DESC
+            LIMIT "limit_p";
+          RETURN;
+        END IF;
+        SELECT count(1) INTO "count_v"
+          FROM (
+            SELECT "initiative"."id" AS "initiative_id"
+            FROM "initiative"
+            JOIN "issue" ON "issue"."id" = "initiative"."issue_id"
+            WHERE "issue"."closed" NOTNULL
+            ORDER BY "closed" DESC
+            LIMIT "limit_v"
+          ) AS "subquery"
+          JOIN "initiative" ON "initiative"."id" = "subquery"."initiative_id"
+          WHERE GeoJSON_to_ecluster("initiative"."location") && "bounding_box_p"
+          LIMIT "limit_p";
+        IF "count_v" >= "limit_p" THEN
+          RETURN QUERY SELECT "initiative".*
+            FROM (
+              SELECT
+                "initiative"."id" AS "initiative_id",
+                "issue"."closed"
+              FROM "initiative"
+              JOIN "issue" ON "issue"."id" = "initiative"."issue_id"
+              WHERE "issue"."closed" NOTNULL
+              ORDER BY "closed" DESC
+              LIMIT "limit_v"
+            ) AS "subquery"
+            JOIN "initiative" ON "initiative"."id" = "subquery"."initiative_id"
+            WHERE GeoJSON_to_ecluster("initiative"."location") && "bounding_box_p"
+            ORDER BY "subquery"."closed" DESC
+            LIMIT "limit_p";
+          RETURN;
+        END IF;
+        "limit_v" := "limit_v" * 2;
+      END LOOP;
+    END;
+  $$;
+
+COMMENT ON FUNCTION "closed_initiatives_in_bounding_box"
+  ( EBOX, INT4 )
+  IS 'TODO';
+*/
+
+
+
 ---------------------------
 -- Transaction isolation --
 ---------------------------