* All functions that access database must be declared as `STABLE`, not `IMMUTABLE` -- because database can change at any moment, e.g. during an update
* there are a few functions that could be made `STRICT` -- passing `NULL` as a parameter will always result in a `NULL`, but for some reason that causes a significant decrease in perf.
* tagged one function as parallel safe
NOTE: somehow `ST_AsMVT()` method of tile generation is showing 70-90% slowdown with this patch. I am not sure of why this is happening. If the reason is the `IMMUTABLE` -> `STABLE` change, we may have to dig deeper into PG optimization
* Current code incorrectly passes `IMPOSM_CONFIG_FILE` to the `generate-tiles` image, but should pass it to the tools.
* add a test to ensure imposm config exists
* add a test to ensure area is set during updates
Make sure that core targets (i.e. part of the `all` target like build-sql and build yaml files) do not run multiple times if they already exist.
Makefile for some reason does not like it when a real target depends on a PHONY target, and re-runs it. I added an `if` statement to skip building targets if their result already exists.
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`.
* Set `MAX_ZOOM` to 7 by default.
* Remove `QUICKSTART_MIN/MAX_ZOOM` - unneeded complexity with two env vars. We can just use `MIN_ZOOM` and `MAX_ZOOM`. See also #261
* Generate dc-config yaml file with a new `make generate-dc-config` step. It will compute BBOX based on the downloaded data file. This step is not needed for planet generation.
* Generate Imposm replication file only when `DIFF_MODE` is `true`. Not needed otherwise. If the data source does not support it, it will throw an error.
Closes#904
* Make all data-related targets like `download*`, `import-osm`, `import-borders`, and `generate-tiles` into `area`-aware -- making it possible for multiple data files to coexist inside the `./data` dir.
* Add `make download area=... [url=...]` command to automatically download any kind of area by checking Geofabrik, BBBike, and OSM.fr, optionally from a custom URL. Supports `area=planet` too.
* Do not re-download area with `make download-*` if it already exists.
* Automatically rename `<area>-latest.osm.pbf` into `<area>.osm.pbf`
* If `area=...` parameter is not given to `make`, see if there is exactly one `*.osm.pbf` file, and if so, use `*` as the `area`.
* Configure many variables in the .env file, overriding the defaults in tools
* If `<area>.osm.pbf` exists, but `<area>.dc-config.pbf` is missing, generate it using `download-osm make-dc` command.
Also:
* closes#614
* closes#647
* partially addresses #261
* Make a few spacing adjustments for ease-of-reading and consistency
* fix bbbike naming and other source urls
* remove unneeded `override`
* added `list-bbbike` target
This only changes the generated `getmvt(...)` function used by mvt users.
Beginning with tools 5.1, postgis docker images uses postgis v3.0, and includes gzip extension
