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openmaptiles/layers/transportation/layer.sql
Yuri Astrakhan 6457419e0d
NOOP: Format all layer's SQL code (#917) 
I would like to reformat all of our SQL to have a concise coding style.
This makes it far easier to understand the code for a casual contributor,
and lets us spot errors more easily.

Most importantly, it makes it much easier to grep (search) the code because it is more likely to be in the same syntax

Some key changes:
* SQL keywords are always UPPERCASE, e.g. `SELECT WHEN AS END ...`
* types, variables, aliases, and field names (identifiers) are always lower case
* `LANGUAGE 'plpgsql'` is now `LANGUAGE plpgsql` (no quotes)
* a few minor spacing/semicolon cleanups

P.S. Per @TomPohys request, `TABLE` is spelled using upper case despite being a type for consistency with PG Docs. Same for `LANGUAGE SQL` vs `LANGUAGE plpgsql`.
2020-06-08 12:19:55 -04:00

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PL/PgSQL
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CREATE OR REPLACE FUNCTION highway_is_link(highway text) RETURNS boolean AS
$$
SELECT highway LIKE '%_link';
$$ LANGUAGE SQL IMMUTABLE
STRICT
PARALLEL SAFE;
-- etldoc: layer_transportation[shape=record fillcolor=lightpink, style="rounded,filled",
-- etldoc: label="<sql> layer_transportation |<z4> z4 |<z5> z5 |<z6> z6 |<z7> z7 |<z8> z8 |<z9> z9 |<z10> z10 |<z11> z11 |<z12> z12|<z13> z13|<z14_> z14+" ] ;
CREATE OR REPLACE FUNCTION layer_transportation(bbox geometry, zoom_level int)
RETURNS TABLE
(
osm_id bigint,
geometry geometry,
class text,
subclass text,
ramp int,
oneway int,
brunnel text,
service text,
layer int,
level int,
indoor int,
bicycle text,
foot text,
horse text,
mtb_scale text,
surface text
)
AS
$$
SELECT osm_id,
geometry,
CASE
WHEN NULLIF(highway, '') IS NOT NULL OR NULLIF(public_transport, '') IS NOT NULL
THEN highway_class(highway, public_transport, construction)
WHEN NULLIF(railway, '') IS NOT NULL THEN railway_class(railway)
WHEN NULLIF(aerialway, '') IS NOT NULL THEN aerialway
WHEN NULLIF(shipway, '') IS NOT NULL THEN shipway
WHEN NULLIF(man_made, '') IS NOT NULL THEN man_made
END AS class,
CASE
WHEN railway IS NOT NULL THEN railway
WHEN (highway IS NOT NULL OR public_transport IS NOT NULL)
AND highway_class(highway, public_transport, construction) = 'path'
THEN COALESCE(NULLIF(public_transport, ''), highway)
END AS subclass,
-- All links are considered as ramps as well
CASE
WHEN highway_is_link(highway) OR highway = 'steps'
THEN 1
ELSE is_ramp::int END AS ramp,
is_oneway::int AS oneway,
brunnel(is_bridge, is_tunnel, is_ford) AS brunnel,
NULLIF(service, '') AS service,
NULLIF(layer, 0) AS layer,
"level",
CASE WHEN indoor = TRUE THEN 1 END AS indoor,
NULLIF(bicycle, '') AS bicycle,
NULLIF(foot, '') AS foot,
NULLIF(horse, '') AS horse,
NULLIF(mtb_scale, '') AS mtb_scale,
NULLIF(surface, '') AS surface
FROM (
-- etldoc: osm_transportation_merge_linestring_gen7 -> layer_transportation:z4
SELECT osm_id,
geometry,
highway,
construction,
NULL AS railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
NULL AS service,
NULL::boolean AS is_bridge,
NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp,
NULL::int AS is_oneway,
NULL AS man_made,
NULL::int AS layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_transportation_merge_linestring_gen7
WHERE zoom_level = 4
UNION ALL
-- etldoc: osm_transportation_merge_linestring_gen6 -> layer_transportation:z5
SELECT osm_id,
geometry,
highway,
construction,
NULL AS railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
NULL AS service,
NULL::boolean AS is_bridge,
NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp,
NULL::int AS is_oneway,
NULL AS man_made,
NULL::int AS layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_transportation_merge_linestring_gen6
WHERE zoom_level = 5
UNION ALL
-- etldoc: osm_transportation_merge_linestring_gen5 -> layer_transportation:z6
SELECT osm_id,
geometry,
highway,
construction,
NULL AS railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
NULL AS service,
NULL::boolean AS is_bridge,
NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp,
NULL::int AS is_oneway,
NULL AS man_made,
NULL::int AS layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_transportation_merge_linestring_gen5
WHERE zoom_level = 6
UNION ALL
-- etldoc: osm_transportation_merge_linestring_gen4 -> layer_transportation:z7
SELECT osm_id,
geometry,
highway,
construction,
NULL AS railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
NULL AS service,
NULL::boolean AS is_bridge,
NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp,
NULL::int AS is_oneway,
NULL AS man_made,
NULL::int AS layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_transportation_merge_linestring_gen4
WHERE zoom_level = 7
UNION ALL
-- etldoc: osm_transportation_merge_linestring_gen3 -> layer_transportation:z8
SELECT osm_id,
geometry,
highway,
construction,
NULL AS railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
NULL AS service,
NULL::boolean AS is_bridge,
NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp,
NULL::int AS is_oneway,
NULL AS man_made,
NULL::int AS layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_transportation_merge_linestring_gen3
WHERE zoom_level = 8
UNION ALL
-- etldoc: osm_highway_linestring_gen2 -> layer_transportation:z9
-- etldoc: osm_highway_linestring_gen2 -> layer_transportation:z10
SELECT osm_id,
geometry,
highway,
construction,
NULL AS railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
NULL AS service,
NULL::boolean AS is_bridge,
NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp,
NULL::int AS is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
bicycle,
foot,
horse,
mtb_scale,
NULL AS surface,
z_order
FROM osm_highway_linestring_gen2
WHERE zoom_level BETWEEN 9 AND 10
AND st_length(geometry) > zres(11)
UNION ALL
-- etldoc: osm_highway_linestring_gen1 -> layer_transportation:z11
SELECT osm_id,
geometry,
highway,
construction,
NULL AS railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
NULL AS service,
NULL::boolean AS is_bridge,
NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp,
NULL::int AS is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
bicycle,
foot,
horse,
mtb_scale,
NULL AS surface,
z_order
FROM osm_highway_linestring_gen1
WHERE zoom_level = 11
AND st_length(geometry) > zres(12)
UNION ALL
-- etldoc: osm_highway_linestring -> layer_transportation:z12
-- etldoc: osm_highway_linestring -> layer_transportation:z13
-- etldoc: osm_highway_linestring -> layer_transportation:z14_
SELECT osm_id,
geometry,
highway,
construction,
NULL AS railway,
NULL AS aerialway,
NULL AS shipway,
public_transport,
service_value(service) AS service,
is_bridge,
is_tunnel,
is_ford,
is_ramp,
is_oneway,
man_made,
layer,
CASE WHEN highway IN ('footway', 'steps') THEN "level" END AS "level",
CASE WHEN highway IN ('footway', 'steps') THEN indoor END AS indoor,
bicycle,
foot,
horse,
mtb_scale,
surface_value(surface) AS "surface",
z_order
FROM osm_highway_linestring
WHERE NOT is_area
AND (
zoom_level = 12 AND (
highway_class(highway, public_transport, construction) NOT IN ('track', 'path', 'minor')
OR highway IN ('unclassified', 'residential')
) AND man_made <> 'pier'
OR zoom_level = 13
AND (
highway_class(highway, public_transport, construction) NOT IN ('track', 'path') AND
man_made <> 'pier'
OR
man_made = 'pier' AND NOT ST_IsClosed(geometry)
)
OR zoom_level >= 14
AND (
man_made <> 'pier'
OR
NOT ST_IsClosed(geometry)
)
)
UNION ALL
-- etldoc: osm_railway_linestring_gen5 -> layer_transportation:z8
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
service_value(service) AS service,
NULL::boolean AS is_bridge,
NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp,
NULL::int AS is_oneway,
NULL AS man_made,
NULL::int AS layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_railway_linestring_gen5
WHERE zoom_level = 8
AND railway = 'rail'
AND service = ''
AND usage = 'main'
UNION ALL
-- etldoc: osm_railway_linestring_gen4 -> layer_transportation:z9
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
service_value(service) AS service,
NULL::boolean AS is_bridge,
NULL::boolean AS is_tunnel,
NULL::boolean AS is_ford,
NULL::boolean AS is_ramp,
NULL::int AS is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_railway_linestring_gen4
WHERE zoom_level = 9
AND railway = 'rail'
AND service = ''
AND usage = 'main'
UNION ALL
-- etldoc: osm_railway_linestring_gen3 -> layer_transportation:z10
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
service_value(service) AS service,
is_bridge,
is_tunnel,
is_ford,
is_ramp,
is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_railway_linestring_gen3
WHERE zoom_level = 10
AND railway IN ('rail', 'narrow_gauge')
AND service = ''
UNION ALL
-- etldoc: osm_railway_linestring_gen2 -> layer_transportation:z11
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
service_value(service) AS service,
is_bridge,
is_tunnel,
is_ford,
is_ramp,
is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_railway_linestring_gen2
WHERE zoom_level = 11
AND railway IN ('rail', 'narrow_gauge', 'light_rail')
AND service = ''
UNION ALL
-- etldoc: osm_railway_linestring_gen1 -> layer_transportation:z12
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
service_value(service) AS service,
is_bridge,
is_tunnel,
is_ford,
is_ramp,
is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_railway_linestring_gen1
WHERE zoom_level = 12
AND railway IN ('rail', 'narrow_gauge', 'light_rail')
AND service = ''
UNION ALL
-- etldoc: osm_railway_linestring -> layer_transportation:z13
-- etldoc: osm_railway_linestring -> layer_transportation:z14_
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
railway,
NULL AS aerialway,
NULL AS shipway,
NULL AS public_transport,
service_value(service) AS service,
is_bridge,
is_tunnel,
is_ford,
is_ramp,
is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_railway_linestring
WHERE zoom_level = 13
AND railway IN ('rail', 'narrow_gauge', 'light_rail') AND service = ''
OR zoom_level >= 14
UNION ALL
-- etldoc: osm_aerialway_linestring_gen1 -> layer_transportation:z12
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
NULL AS railway,
aerialway,
NULL AS shipway,
NULL AS public_transport,
service_value(service) AS service,
is_bridge,
is_tunnel,
is_ford,
is_ramp,
is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_aerialway_linestring_gen1
WHERE zoom_level = 12
UNION ALL
-- etldoc: osm_aerialway_linestring -> layer_transportation:z13
-- etldoc: osm_aerialway_linestring -> layer_transportation:z14_
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
NULL AS railway,
aerialway,
NULL AS shipway,
NULL AS public_transport,
service_value(service) AS service,
is_bridge,
is_tunnel,
is_ford,
is_ramp,
is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_aerialway_linestring
WHERE zoom_level >= 13
UNION ALL
-- etldoc: osm_shipway_linestring_gen2 -> layer_transportation:z11
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
NULL AS railway,
NULL AS aerialway,
shipway,
NULL AS public_transport,
service_value(service) AS service,
is_bridge,
is_tunnel,
is_ford,
is_ramp,
is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_shipway_linestring_gen2
WHERE zoom_level = 11
UNION ALL
-- etldoc: osm_shipway_linestring_gen1 -> layer_transportation:z12
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
NULL AS railway,
NULL AS aerialway,
shipway,
NULL AS public_transport,
service_value(service) AS service,
is_bridge,
is_tunnel,
is_ford,
is_ramp,
is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_shipway_linestring_gen1
WHERE zoom_level = 12
UNION ALL
-- etldoc: osm_shipway_linestring -> layer_transportation:z13
-- etldoc: osm_shipway_linestring -> layer_transportation:z14_
SELECT osm_id,
geometry,
NULL AS highway,
NULL AS construction,
NULL AS railway,
NULL AS aerialway,
shipway,
NULL AS public_transport,
service_value(service) AS service,
is_bridge,
is_tunnel,
is_ford,
is_ramp,
is_oneway,
NULL AS man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_shipway_linestring
WHERE zoom_level >= 13
UNION ALL
-- NOTE: We limit the selection of polys because we need to be
-- careful to net get false positives here because
-- it is possible that closed linestrings appear both as
-- highway linestrings and as polygon
-- etldoc: osm_highway_polygon -> layer_transportation:z13
-- etldoc: osm_highway_polygon -> layer_transportation:z14_
SELECT osm_id,
geometry,
highway,
NULL AS construction,
NULL AS railway,
NULL AS aerialway,
NULL AS shipway,
public_transport,
NULL AS service,
CASE
WHEN man_made IN ('bridge') THEN TRUE
ELSE FALSE
END AS is_bridge,
FALSE AS is_tunnel,
FALSE AS is_ford,
FALSE AS is_ramp,
FALSE::int AS is_oneway,
man_made,
layer,
NULL::int AS level,
NULL::boolean AS indoor,
NULL AS bicycle,
NULL AS foot,
NULL AS horse,
NULL AS mtb_scale,
NULL AS surface,
z_order
FROM osm_highway_polygon
-- We do not want underground pedestrian areas for now
WHERE zoom_level >= 13
AND (
man_made IN ('bridge', 'pier')
OR (is_area AND COALESCE(layer, 0) >= 0)
)
) AS zoom_levels
WHERE geometry && bbox
ORDER BY z_order ASC;
$$ LANGUAGE SQL IMMUTABLE
PARALLEL SAFE;
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