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/layer.sql

@@ -1,59 +1,78 @@
-
 -- etldoc: layer_water_name[shape=record fillcolor=lightpink, style="rounded,filled",
 -- etldoc:     label="layer_water_name | <z0_8> z0_8 | <z9_13> z9_13 | <z14_> z14+" ] ;
 
 CREATE OR REPLACE FUNCTION layer_water_name(bbox geometry, zoom_level integer)
-RETURNS TABLE(osm_id bigint, geometry geometry, name text, name_en text, name_de text, tags hstore, class text, intermittent int) AS $$
+    RETURNS TABLE
+            (
+                osm_id       bigint,
+                geometry     geometry,
+                name         text,
+                name_en      text,
+                name_de      text,
+                tags         hstore,
+                class        text,
+                intermittent int
+            )
+AS
+$$
+SELECT
     -- etldoc: osm_water_lakeline ->  layer_water_name:z9_13
     -- etldoc: osm_water_lakeline ->  layer_water_name:z14_
-    SELECT
-    CASE WHEN osm_id<0 THEN -osm_id*10+4
-        ELSE osm_id*10+1
-    END AS osm_id_hash,
-    geometry, name,
-    COALESCE(NULLIF(name_en, ''), name) AS name_en,
+    CASE
+        WHEN osm_id < 0 THEN -osm_id * 10 + 4
+        ELSE osm_id * 10 + 1
+        END                                      AS osm_id_hash,
+    geometry,
+    name,
+    COALESCE(NULLIF(name_en, ''), name)          AS name_en,
     COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
     tags,
-    'lake'::text AS class,
-    is_intermittent::int AS intermittent
-    FROM osm_water_lakeline
-    WHERE geometry && bbox
-      AND ((zoom_level BETWEEN 9 AND 13 AND LineLabel(zoom_level, NULLIF(name, ''), geometry))
-        OR (zoom_level >= 14))
+    'lake'::text                                 AS class,
+    is_intermittent::int                         AS intermittent
+FROM osm_water_lakeline
+WHERE geometry && bbox
+  AND ((zoom_level BETWEEN 9 AND 13 AND LineLabel(zoom_level, NULLIF(name, ''), geometry))
+    OR (zoom_level >= 14))
+UNION ALL
+SELECT
     -- etldoc: osm_water_point ->  layer_water_name:z9_13
     -- etldoc: osm_water_point ->  layer_water_name:z14_
-    UNION ALL
-    SELECT
-    CASE WHEN osm_id<0 THEN -osm_id*10+4
-        ELSE osm_id*10+1
-    END AS osm_id_hash,
-    geometry, name,
-    COALESCE(NULLIF(name_en, ''), name) AS name_en,
+    CASE
+        WHEN osm_id < 0 THEN -osm_id * 10 + 4
+        ELSE osm_id * 10 + 1
+        END                                      AS osm_id_hash,
+    geometry,
+    name,
+    COALESCE(NULLIF(name_en, ''), name)          AS name_en,
     COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
     tags,
-    'lake'::text AS class,
-    is_intermittent::int AS intermittent
-    FROM osm_water_point
-    WHERE geometry && bbox AND (
-        (zoom_level BETWEEN 9 AND 13 AND area > 70000*2^(20-zoom_level))
+    'lake'::text                                 AS class,
+    is_intermittent::int                         AS intermittent
+FROM osm_water_point
+WHERE geometry && bbox
+  AND (
+        (zoom_level BETWEEN 9 AND 13 AND area > 70000 * 2 ^ (20 - zoom_level))
         OR (zoom_level >= 14)
     )
+UNION ALL
+SELECT
     -- etldoc: osm_marine_point ->  layer_water_name:z0_8
     -- etldoc: osm_marine_point ->  layer_water_name:z9_13
     -- etldoc: osm_marine_point ->  layer_water_name:z14_
-    UNION ALL
-    SELECT osm_id*10, geometry, name,
-    COALESCE(NULLIF(name_en, ''), name) AS name_en,
+    osm_id * 10                                  AS osm_id_hash,
+    geometry,
+    name,
+    COALESCE(NULLIF(name_en, ''), name)          AS name_en,
     COALESCE(NULLIF(name_de, ''), name, name_en) AS name_de,
     tags,
-    place::text AS class,
-    is_intermittent::int AS intermittent
-    FROM osm_marine_point
-    WHERE geometry && bbox AND (
+    place::text                                  AS class,
+    is_intermittent::int                         AS intermittent
+FROM osm_marine_point
+WHERE geometry && bbox
+  AND (
         place = 'ocean'
         OR (zoom_level >= "rank" AND "rank" IS NOT NULL)
         OR (zoom_level >= 8)
     );
-$$
-LANGUAGE SQL
-IMMUTABLE PARALLEL SAFE;
+$$ LANGUAGE SQL IMMUTABLE
+                PARALLEL SAFE;