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Make the sql rerunnable without error

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stirringhalo
2017-01-05 12:47:10 -05:00
parent c5f05e7c3a
commit 9437a1b8d6
9 changed files with 57 additions and 16 deletions
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10
layers/waterway/merge_waterway.sql
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@@ -4,6 +4,11 @@
-- and also makes it possible to filter out too short rivers
-- etldoc: osm_waterway_linestring -> osm_important_waterway_linestring
DROP MATERIALIZED VIEW IF EXISTS osm_important_waterway_linestring CASCADE;
DROP MATERIALIZED VIEW IF EXISTS osm_important_waterway_linestring_gen1 CASCADE;
DROP MATERIALIZED VIEW IF EXISTS osm_important_waterway_linestring_gen2 CASCADE;
DROP MATERIALIZED VIEW IF EXISTS osm_important_waterway_linestring_gen3 CASCADE;
CREATE MATERIALIZED VIEW osm_important_waterway_linestring AS (
SELECT
(ST_Dump(geometry)).geom AS geometry,
@@ -45,7 +50,7 @@ CREATE INDEX IF NOT EXISTS osm_important_waterway_linestring_gen3_geometry_idx O
-- Handle updates
CREATE SCHEMA waterway;
CREATE SCHEMA IF NOT EXISTS waterway;
CREATE TABLE IF NOT EXISTS waterway.updates(id serial primary key, t text, unique (t));
CREATE OR REPLACE FUNCTION waterway.flag() RETURNS trigger AS $$
@@ -69,6 +74,9 @@ CREATE OR REPLACE FUNCTION waterway.refresh() RETURNS trigger AS
$BODY$
language plpgsql;
DROP TRIGGER IF EXISTS trigger_flag ON osm_waterway_linestring;
DROP TRIGGER IF EXISTS trigger_refresh ON waterway.updates;
CREATE TRIGGER trigger_flag
AFTER INSERT OR UPDATE OR DELETE ON osm_waterway_linestring
FOR EACH STATEMENT