kopia lustrzana https://github.com/openmaptiles/openmaptiles
73 wiersze
2.5 KiB
SQL
73 wiersze
2.5 KiB
SQL
DROP TABLE IF EXISTS osm_landcover_gen_z0;
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DROP TABLE IF EXISTS osm_landcover_gen_z1;
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DROP TABLE IF EXISTS osm_landcover_gen_z2;
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DROP TABLE IF EXISTS osm_landcover_gen_z3;
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DROP TABLE IF EXISTS osm_landcover_gen_z4;
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DROP TABLE IF EXISTS osm_landcover_gen_z5;
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DROP TABLE IF EXISTS osm_landcover_gen_z6;
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DROP TABLE IF EXISTS osm_landcover_gen_z7;
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DROP TABLE IF EXISTS osm_landcover_gen_z8;
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DROP TABLE IF EXISTS osm_landcover_gen_z9;
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DROP TABLE IF EXISTS osm_landcover_gen_z10;
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DROP TABLE IF EXISTS osm_landcover_gen_z11;
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DROP TABLE IF EXISTS osm_landcover_gen_z12;
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DROP TABLE IF EXISTS osm_landcover_gen_z13;
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DROP TABLE IF EXISTS simplify_vw_z0 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z1 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z2 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z3 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z4 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z5 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z6 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z7 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z8 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z9 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z10 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z11 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z12 CASCADE;
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DROP TABLE IF EXISTS simplify_vw_z13 CASCADE;
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-- etldoc: osm_landcover_polygon -> simplify_vw_z13
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CREATE TABLE simplify_vw_z13 AS
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(
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SELECT subclass,
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ST_MakeValid(
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ST_Union(
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ST_SnapToGrid(
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ST_SimplifyVW(geometry, power(zres(13),2)),
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0.001))) AS geometry
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FROM osm_landcover_polygon
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GROUP BY subclass
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WHERE ST_Area(geometry) > power(zres(12),2)
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);
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CREATE INDEX ON simplify_vw_z13 USING GIST (geometry);
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-- etldoc: simplify_vw_z13 -> simplify_vw_z12
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CREATE TABLE simplify_vw_z12 AS
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(
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SELECT subclass,
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ST_MakeValid(
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ST_Union(
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ST_SnapToGrid(
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ST_SimplifyVW(geometry, power(zres(12),2)),
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0.001))) AS geometry
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FROM simplify_vw_z13
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GROUP BY subclass
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WHERE ST_Area(geometry) > power(zres(11),2)
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);
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CREATE INDEX ON simplify_vw_z12 USING GIST (geometry);
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-- etldoc: simplify_vw_z12 -> simplify_vw_z11
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CREATE TABLE simplify_vw_z11 AS
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(
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SELECT subclass,
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ST_MakeValid(
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ST_Union(
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ST_SnapToGrid(
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ST_SimplifyVW(geometry, power(zres(11),2)),
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0.001))) AS geometry
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FROM simplify_vw_z12
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GROUP BY subclass
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WHERE ST_Area(geometry) > power(zres(10),2)
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);
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CREATE INDEX ON simplify_vw_z11 USING GIST (geometry); |