X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/12c1d5e6c05813a0697724277b4d8529a1a7c240..b29189e856a0447612e99f7337341a9486d1e4f2:/db/structure.sql diff --git a/db/structure.sql b/db/structure.sql index dd0165ee0..89874d779 100644 --- a/db/structure.sql +++ b/db/structure.sql @@ -107,39 +107,6 @@ CREATE TYPE public.user_status_enum AS ENUM ( 'deleted' ); - --- --- Name: tile_for_point(integer, integer); Type: FUNCTION; Schema: public; Owner: - --- - -CREATE FUNCTION public.tile_for_point(scaled_lat integer, scaled_lon integer) RETURNS bigint - LANGUAGE plpgsql IMMUTABLE - AS $$ -DECLARE - x int8; -- quantized x from lon, - y int8; -- quantized y from lat, -BEGIN - x := round(((scaled_lon / 10000000.0) + 180.0) * 65535.0 / 360.0); - y := round(((scaled_lat / 10000000.0) + 90.0) * 65535.0 / 180.0); - - -- these bit-masks are special numbers used in the bit interleaving algorithm. - -- see https://graphics.stanford.edu/~seander/bithacks.html#InterleaveBMN - -- for the original algorithm and more details. - x := (x | (x << 8)) & 16711935; -- 0x00FF00FF - x := (x | (x << 4)) & 252645135; -- 0x0F0F0F0F - x := (x | (x << 2)) & 858993459; -- 0x33333333 - x := (x | (x << 1)) & 1431655765; -- 0x55555555 - - y := (y | (y << 8)) & 16711935; -- 0x00FF00FF - y := (y | (y << 4)) & 252645135; -- 0x0F0F0F0F - y := (y | (y << 2)) & 858993459; -- 0x33333333 - y := (y | (y << 1)) & 1431655765; -- 0x55555555 - - RETURN (x << 1) | y; -END; -$$; - - SET default_tablespace = ''; SET default_table_access_method = heap; @@ -3472,5 +3439,3 @@ INSERT INTO "schema_migrations" (version) VALUES ('7'), ('8'), ('9'); - -