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`.

layers/water_name/update_water_point.sql

@@ -3,26 +3,32 @@ DROP TRIGGER IF EXISTS trigger_update_point ON osm_water_polygon;
 DROP TRIGGER IF EXISTS trigger_insert_point ON osm_water_polygon;
 
 CREATE OR REPLACE VIEW osm_water_point_view AS
-    SELECT
-        wp.osm_id, ST_PointOnSurface(wp.geometry) AS geometry,
-        wp.name, wp.name_en, wp.name_de,
-        update_tags(wp.tags, ST_PointOnSurface(wp.geometry)) AS tags,
-        ST_Area(wp.geometry) AS area,
-        wp.is_intermittent
-    FROM osm_water_polygon AS wp
-    LEFT JOIN lake_centerline ll ON wp.osm_id = ll.osm_id
-    WHERE ll.osm_id IS NULL AND wp.name <> ''
-;
+SELECT wp.osm_id,
+       ST_PointOnSurface(wp.geometry)                       AS geometry,
+       wp.name,
+       wp.name_en,
+       wp.name_de,
+       update_tags(wp.tags, ST_PointOnSurface(wp.geometry)) AS tags,
+       ST_Area(wp.geometry)                                 AS area,
+       wp.is_intermittent
+FROM osm_water_polygon AS wp
+         LEFT JOIN lake_centerline ll ON wp.osm_id = ll.osm_id
+WHERE ll.osm_id IS NULL
+  AND wp.name <> '';
 
 -- etldoc:  osm_water_polygon ->  osm_water_point
 -- etldoc:  lake_centerline ->  osm_water_point
 CREATE TABLE IF NOT EXISTS osm_water_point AS
-SELECT * FROM osm_water_point_view;
-DO $$
+SELECT *
+FROM osm_water_point_view;
+DO
+$$
     BEGIN
-        ALTER TABLE osm_water_point ADD CONSTRAINT osm_water_point_pk PRIMARY KEY (osm_id);
-    EXCEPTION WHEN others then
-        RAISE NOTICE 'primary key osm_water_point_pk already exists in osm_water_point.';
+        ALTER TABLE osm_water_point
+            ADD CONSTRAINT osm_water_point_pk PRIMARY KEY (osm_id);
+    EXCEPTION
+        WHEN OTHERS THEN
+            RAISE NOTICE 'primary key osm_water_point_pk already exists in osm_water_point.';
     END;
 $$;
 CREATE INDEX IF NOT EXISTS osm_water_point_geometry_idx ON osm_water_point USING gist (geometry);
@@ -31,48 +37,55 @@ CREATE INDEX IF NOT EXISTS osm_water_point_geometry_idx ON osm_water_point USING
 
 CREATE SCHEMA IF NOT EXISTS water_point;
 
-CREATE OR REPLACE FUNCTION water_point.delete() RETURNS trigger AS $BODY$
+CREATE OR REPLACE FUNCTION water_point.delete() RETURNS trigger AS
+$$
 BEGIN
-    DELETE FROM osm_water_point
-    WHERE osm_water_point.osm_id = OLD.osm_id ;
+    DELETE
+    FROM osm_water_point
+    WHERE osm_water_point.osm_id = OLD.osm_id;
 
-    RETURN null;
+    RETURN NULL;
 END;
-$BODY$ language plpgsql;
+$$ LANGUAGE plpgsql;
 
-CREATE OR REPLACE FUNCTION water_point.update() RETURNS trigger AS $BODY$
+CREATE OR REPLACE FUNCTION water_point.update() RETURNS trigger AS
+$$
 BEGIN
     UPDATE osm_water_point
     SET (osm_id, geometry, name, name_en, name_de, tags, area, is_intermittent) =
-        (SELECT * FROM osm_water_point_view WHERE osm_water_point_view.osm_id = NEW.osm_id)
+            (SELECT * FROM osm_water_point_view WHERE osm_water_point_view.osm_id = NEW.osm_id)
     WHERE osm_water_point.osm_id = NEW.osm_id;
 
-    RETURN null;
+    RETURN NULL;
 END;
-$BODY$ language plpgsql;
+$$ LANGUAGE plpgsql;
 
-CREATE OR REPLACE FUNCTION water_point.insert() RETURNS trigger AS $BODY$
+CREATE OR REPLACE FUNCTION water_point.insert() RETURNS trigger AS
+$$
 BEGIN
     INSERT INTO osm_water_point
     SELECT *
     FROM osm_water_point_view
     WHERE osm_water_point_view.osm_id = NEW.osm_id;
 
-    RETURN null;
+    RETURN NULL;
 END;
-$BODY$ language plpgsql;
+$$ LANGUAGE plpgsql;
 
 CREATE TRIGGER trigger_delete_point
-    AFTER DELETE ON osm_water_polygon
+    AFTER DELETE
+    ON osm_water_polygon
     FOR EACH ROW
-    EXECUTE PROCEDURE water_point.delete();
+EXECUTE PROCEDURE water_point.delete();
 
 CREATE TRIGGER trigger_update_point
-    AFTER UPDATE ON osm_water_polygon
+    AFTER UPDATE
+    ON osm_water_polygon
     FOR EACH ROW
-    EXECUTE PROCEDURE water_point.update();
+EXECUTE PROCEDURE water_point.update();
 
 CREATE TRIGGER trigger_insert_point
-    AFTER INSERT ON osm_water_polygon
+    AFTER INSERT
+    ON osm_water_polygon
     FOR EACH ROW
-    EXECUTE PROCEDURE water_point.insert();
+EXECUTE PROCEDURE water_point.insert();