[114] | 1 | DROP TABLE IF EXISTS map_wege_g0; |
---|
| 2 | -- |
---|
| 3 | SELECT |
---|
| 4 | (ST_Dump(ST_LineMerge(ST_Collect(ST_SimplifyPreserveTopology(ax_fahrwegachse.wkb_geometry, 2.5))))).geom AS wkb_geometry, |
---|
| 5 | NULL::text AS widmung |
---|
| 6 | INTO map_wege_g0 |
---|
| 7 | FROM ax_fahrwegachse; |
---|
| 8 | -- |
---|
| 9 | DROP SEQUENCE IF EXISTS map_wege_g0_gid_seq; |
---|
| 10 | CREATE SEQUENCE map_wege_g0_gid_seq; |
---|
| 11 | ALTER TABLE map_wege_g0 ADD COLUMN gid INTEGER; |
---|
| 12 | UPDATE map_wege_g0 SET gid = nextval('map_wege_g0_gid_seq'); |
---|
| 13 | ALTER TABLE map_wege_g0 ALTER COLUMN gid SET DEFAULT nextval('map_wege_g0_gid_seq'); |
---|
| 14 | CREATE INDEX map_wege_g0_gidx ON map_wege_g0 USING GIST ( wkb_geometry ); |
---|
| 15 | CREATE INDEX map_wege_g0_widmung_idx ON map_wege_g0 (widmung); |
---|
| 16 | -- |
---|
| 17 | -- |
---|
| 18 | DROP TABLE IF EXISTS map_wege_g1; |
---|
| 19 | -- |
---|
| 20 | |
---|
| 21 | SELECT ST_SimplifyPreserveTopology(wkb_geometry, 5) AS wkb_geometry, widmung |
---|
| 22 | INTO map_wege_g1 |
---|
| 23 | FROM map_wege_g0 |
---|
| 24 | WHERE ST_Length( wkb_geometry ) > 5; |
---|
| 25 | -- |
---|
| 26 | DROP SEQUENCE IF EXISTS map_wege_g1_gid_seq; |
---|
| 27 | CREATE SEQUENCE map_wege_g1_gid_seq; |
---|
| 28 | ALTER TABLE map_wege_g1 ADD COLUMN gid INTEGER; |
---|
| 29 | UPDATE map_wege_g1 SET gid = nextval('map_wege_g1_gid_seq'); |
---|
| 30 | ALTER TABLE map_wege_g1 ALTER COLUMN gid SET DEFAULT nextval('map_wege_g1_gid_seq'); |
---|
| 31 | CREATE INDEX map_wege_g1_gidx ON map_wege_g1 USING GIST ( wkb_geometry ); |
---|
| 32 | CREATE INDEX map_wege_g1_widmung_idx ON map_wege_g1 (widmung); |
---|
| 33 | -- |
---|
| 34 | -- |
---|
| 35 | DROP TABLE IF EXISTS map_wege_g2; |
---|
| 36 | -- |
---|
| 37 | SELECT ST_SimplifyPreserveTopology(wkb_geometry, 15) AS wkb_geometry, widmung |
---|
| 38 | INTO map_wege_g2 |
---|
| 39 | FROM map_wege_g1 |
---|
| 40 | WHERE ST_Length( wkb_geometry ) > 15; |
---|
| 41 | -- |
---|
| 42 | DROP SEQUENCE IF EXISTS map_wege_g2_gid_seq; |
---|
| 43 | CREATE SEQUENCE map_wege_g2_gid_seq; |
---|
| 44 | ALTER TABLE map_wege_g2 ADD COLUMN gid INTEGER; |
---|
| 45 | UPDATE map_wege_g2 SET gid = nextval('map_wege_g2_gid_seq'); |
---|
| 46 | ALTER TABLE map_wege_g2 ALTER COLUMN gid SET DEFAULT nextval('map_wege_g2_gid_seq'); |
---|
| 47 | CREATE INDEX map_wege_g2_gidx ON map_wege_g2 USING GIST ( wkb_geometry ); |
---|
| 48 | CREATE INDEX map_wege_g2_widmung_idx ON map_wege_g2 (widmung); |
---|
| 49 | -- |
---|
| 50 | -- |
---|