dfd20c647c
1) The trigger name has a typo of `trigger`, which is incorrectly spelled as `tigger` and doesn't match the following create command: `CREATE TRIGGER trigger_flag`. This may result in an error when invoking `make import-sql`. ``` ERROR: trigger "trigger_flag" for relation "osm_park_polygon_gen_z4" already exists xargs: sh: exited with status 255; aborting ``` 2) The `trigger_flag` may be created on the wrong target in line [#251](https://github.com/plainheart/openmaptiles/blob/master/layers/park/update_park_polygon.sql#L251).