state

scripts/import-vg250.sh

@@ -16,24 +16,55 @@ fi
 : "${DATABASE_URL:?DATABASE_URL must be set}"
 
 echo "Available layers:"
-ogrinfo "$INPUT" | sed -n '1,80p'
+ogrinfo "$INPUT" | sed -n '1,120p'
 
 echo
-echo "Importing vg250_krs..."
+echo "Inspecting vg250_krs..."
+ogrinfo "$INPUT" vg250_krs -so
 
+echo
+echo "Importing only vg250_krs..."
+
+# Remove an old failed import.
+psql "$DATABASE_URL" <<'SQL'
+DROP TABLE IF EXISTS vg250_krs_import CASCADE;
+SQL
+
+# IMPORTANT:
+# The layer name is explicitly specified here.
 ogr2ogr \
     -f PostgreSQL \
     "$DATABASE_URL" \
     "$INPUT" \
+    vg250_krs \
     -nln vg250_krs_import \
     -nlt PROMOTE_TO_MULTI \
     -t_srs EPSG:4326 \
+    -lco GEOMETRY_NAME=wkb_geometry \
     -overwrite
 
-echo "Import completed."
+echo
+echo "Source import completed."
+
+echo
+echo "Imported source columns:"
+psql "$DATABASE_URL" <<'SQL'
+SELECT
+    column_name,
+    data_type
+FROM information_schema.columns
+WHERE table_name = 'vg250_krs_import'
+ORDER BY ordinal_position;
+SQL
+
+echo
+echo "Creating county boundaries..."
 
 psql "$DATABASE_URL" <<'SQL'
-TRUNCATE county_boundaries RESTART IDENTITY;
+BEGIN;
+
+TRUNCATE county_crossings;
+TRUNCATE county_boundaries RESTART IDENTITY CASCADE;
 
 INSERT INTO county_boundaries (
     name,
@@ -41,9 +72,9 @@ INSERT INTO county_boundaries (
 )
 SELECT
     COALESCE(
-        NULLIF("GEN", ''),
-        NULLIF("BEZ", ''),
-        NULLIF("ARS", ''),
+        NULLIF(TRIM(gen), ''),
+        NULLIF(TRIM(bez), ''),
+        NULLIF(TRIM(ars), ''),
         'unknown'
     ) AS name,
 
@@ -52,13 +83,29 @@ SELECT
             ST_MakeValid(wkb_geometry),
             3
         )
-    )::geometry(MultiPolygon,4326)
+    )::geometry(MultiPolygon, 4326) AS geometry
 
 FROM vg250_krs_import
 
-WHERE wkb_geometry IS NOT NULL;
+WHERE
+    wkb_geometry IS NOT NULL
+    AND NOT ST_IsEmpty(wkb_geometry);
 
+COMMIT;
+SQL
+
+echo
+echo "Removing temporary import table..."
+
+psql "$DATABASE_URL" <<'SQL'
 DROP TABLE vg250_krs_import;
+SQL
+
+echo
+echo "Recreating spatial index..."
+
+psql "$DATABASE_URL" <<'SQL'
+DROP INDEX IF EXISTS county_boundaries_geometry_idx;
 
 CREATE INDEX county_boundaries_geometry_idx
     ON county_boundaries
@@ -68,6 +115,32 @@ ANALYZE county_boundaries;
 SQL
 
 echo
-echo "Imported counties:"
-psql "$DATABASE_URL" \
-    -c "SELECT id, name FROM county_boundaries ORDER BY name;"
+echo "=========================================="
+echo " Imported counties"
+echo "=========================================="
+
+psql "$DATABASE_URL" <<'SQL'
+SELECT
+    COUNT(*) AS total,
+    COUNT(*) FILTER (WHERE geometry IS NOT NULL) AS with_geometry,
+    COUNT(*) FILTER (WHERE ST_IsValid(geometry)) AS valid_geometry
+FROM county_boundaries;
+SQL
+
+echo
+echo "First 20 counties:"
+echo
+
+psql "$DATABASE_URL" <<'SQL'
+SELECT
+    id,
+    name,
+    ST_GeometryType(geometry) AS geometry_type,
+    ST_SRID(geometry) AS srid
+FROM county_boundaries
+ORDER BY name
+LIMIT 20;
+SQL
+
+echo
+echo "Import completed successfully."