add etldoc to layer_water

gen_etl_graph_water.sh

@@ -0,0 +1,21 @@
+
+
+ID=water
+DOT=${ID}.dot
+
+echo "digraph G
+{    
+rankdir=LR;
+" > $DOT
+
+cat ./layers/${ID}/mapping.yaml | grep    "# etldoc:" |  sed 's/# etldoc://g'  >>$DOT
+
+cat ./layers/${ID}/water.sql  | grep "\-\- etldoc:" |  sed 's/-- etldoc://g' >>$DOT
+
+echo "
+}
+" >> $DOT
+
+cat $DOT
+
+dot -Tpng $DOT > layer_${ID}_etl.png

layers/water/mapping.yaml

@@ -1,17 +1,26 @@
 generalized_tables:
+
+  # etldoc: imposm3 -> osm_water_polygon_gen3
   water_polygon_gen3:
     source: water_polygon
     sql_filter: area>15000000.0 AND waterway = ''
     tolerance: 350.0
+
+  # etldoc: imposm3 -> osm_water_polygon_gen2    
   water_polygon_gen2:
     source: water_polygon
     sql_filter: area>2000000 AND waterway = ''
     tolerance: 200.0
+
+  # etldoc: imposm3 -> osm_water_polygon_gen1    
   water_polygon_gen1:
     source: water_polygon
     sql_filter: area>500000 AND waterway = ''
     tolerance: 100.0
+
 tables:
+
+  # etldoc: imposm3 -> osm_water_polygon
   water_polygon:
     fields:
     - name: osm_id

layers/water/water.sql

@@ -3,101 +3,141 @@ CREATE OR REPLACE FUNCTION water_class(waterway TEXT) RETURNS TEXT AS $$
 $$ LANGUAGE SQL IMMUTABLE;
 
 
+
 CREATE OR REPLACE VIEW water_z0 AS (
+    -- etldoc:  ne_110m_ocean ->  water_z0 
     SELECT geom, 'ocean' AS class FROM ne_110m_ocean
     UNION ALL
+    -- etldoc:  ne_110m_lakes ->  water_z0     
     SELECT geom, 'lake' AS class FROM ne_110m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z1 AS (
+    -- etldoc:  ne_110m_ocean ->  water_z1    
     SELECT geom, 'ocean' AS class FROM ne_110m_ocean
-    UNION ALL
+    UNION ALL   
+    -- etldoc:  ne_110m_lakes ->  water_z1    
     SELECT geom, 'lake' AS class FROM ne_110m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z2 AS (
+    -- etldoc:  ne_50m_ocean ->  water_z2    
     SELECT geom, 'ocean' AS class FROM ne_50m_ocean
     UNION ALL
+    -- etldoc:  ne_110m_lakes ->  water_z2     
     SELECT geom, 'lake' AS class FROM ne_110m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z4 AS (
+    -- etldoc:  ne_50m_ocean ->  water_z4       
     SELECT geom, 'ocean' AS class FROM ne_50m_ocean
     UNION ALL
+    -- etldoc:  ne_50m_lakes ->  water_z4     
     SELECT geom, 'lake' AS class FROM ne_50m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z5 AS (
+    -- etldoc:  ne_10m_ocean ->  water_z5    
     SELECT geom, 'ocean' AS class FROM ne_10m_ocean
     UNION ALL
+    -- etldoc:  ne_10m_lakes ->  water_z5    
     SELECT geom, 'lake' AS class FROM ne_10m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z6 AS (
+    -- etldoc:  ne_10m_ocean ->  water_z6     
     SELECT geom, 'ocean' AS class FROM ne_10m_ocean
     UNION ALL
+   -- etldoc:  ne_10m_lakes ->  water_z6    
     SELECT geom, 'lake' AS class FROM ne_10m_lakes
 );
 
 CREATE OR REPLACE VIEW water_z7 AS (
+    -- etldoc:  ne_10m_ocean ->  water_z7     
     SELECT geom, 'ocean' AS class FROM ne_10m_ocean
     UNION ALL
+    -- etldoc:  osm_water_polygon_gen3 ->  water_z7     
     SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon_gen3
 );
 
 CREATE OR REPLACE VIEW water_z8 AS (
+    -- etldoc:  ne_10m_ocean ->  water_z8     
     SELECT geom, 'ocean' AS class FROM ne_10m_ocean
     UNION ALL
+    -- etldoc:  osm_water_polygon_gen2 ->  water_z8         
     SELECT geometry AS geom, 'lake' AS class FROM osm_water_polygon_gen2
 );
 
 CREATE OR REPLACE VIEW water_z9 AS (
+    -- etldoc:  osm_water_polygon_gen1 ->  water_z9    
     SELECT geometry AS geom, 'lake'::text AS class FROM osm_water_polygon_gen1
 );
 
 CREATE OR REPLACE VIEW water_z11 AS (
+    -- etldoc:  osm_water_polygon ->  water_z11 
     SELECT geometry AS geom, water_class(waterway) AS class FROM osm_water_polygon WHERE area > 40000
 );
 
 CREATE OR REPLACE VIEW water_z12 AS (
+    -- etldoc:  osm_water_polygon ->  water_z12     
     SELECT geometry AS geom, water_class(waterway) AS class FROM osm_water_polygon WHERE area > 10000
 );
 
 CREATE OR REPLACE VIEW water_z13 AS (
+    -- etldoc:  osm_water_polygon ->  water_z13    
     SELECT geometry AS geom, water_class(waterway) AS class FROM osm_water_polygon WHERE area > 5000
 );
 
 CREATE OR REPLACE VIEW water_z14 AS (
+    -- etldoc:  osm_water_polygon ->  water_z14    
     SELECT geometry AS geom, water_class(waterway) AS class FROM osm_water_polygon
 );
 
+-- etldoc: layer_water [shape=record fillcolor=lightpink, style="rounded,filled",  
+-- etldoc:     label="layer_water |<z0> z0|<z1>z1|<z2>z2|<z3>z3 |<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_water (bbox geometry, zoom_level int)
 RETURNS TABLE(geom geometry, class text) AS $$
     SELECT geom, class::text FROM (
+        -- etldoc: water_z0 ->  layer_water:z0
         SELECT * FROM water_z0 WHERE zoom_level = 0
         UNION ALL
+        -- etldoc: water_z1 ->  layer_water:z1        
         SELECT * FROM water_z1 WHERE zoom_level = 1
         UNION ALL
+        -- etldoc: water_z2 ->  layer_water:z2
+        -- etldoc: water_z2 ->  layer_water:z3          
         SELECT * FROM water_z2 WHERE zoom_level BETWEEN 2 AND 3
         UNION ALL
+        -- etldoc: water_z4 ->  layer_water:z4        
         SELECT * FROM water_z4 WHERE zoom_level = 4
         UNION ALL
+        -- etldoc: water_z5 ->  layer_water:z5        
         SELECT * FROM water_z5 WHERE zoom_level = 5
         UNION ALL
+        -- etldoc: water_z6 ->  layer_water:z6       
         SELECT * FROM water_z6 WHERE zoom_level = 6
         UNION ALL
+        -- etldoc: water_z7 ->  layer_water:z7        
         SELECT * FROM water_z7 WHERE zoom_level = 7
         UNION ALL
+        -- etldoc: water_z8 ->  layer_water:z8        
         SELECT * FROM water_z8 WHERE zoom_level = 8
         UNION ALL
+        -- etldoc: water_z9 ->  layer_water:z9   
+        -- etldoc: water_z9 ->  layer_water:z10                   
         SELECT * FROM water_z9 WHERE zoom_level BETWEEN 9 AND 10
         UNION ALL
+        -- etldoc: water_z11 ->  layer_water:z11        
         SELECT * FROM water_z11 WHERE zoom_level = 11
         UNION ALL
+        -- etldoc: water_z12 ->  layer_water:z2        
         SELECT * FROM water_z12 WHERE zoom_level = 12
         UNION ALL
+        -- etldoc: water_z13 ->  layer_water:z13        
         SELECT * FROM water_z13 WHERE zoom_level = 13
         UNION ALL
+        -- etldoc: water_z14 ->  layer_water:z14_        
         SELECT * FROM water_z14 WHERE zoom_level >= 14
     ) AS zoom_levels
     WHERE geom && bbox;