Commit Graph

23 Commits

Author SHA1 Message Date
Sarah Hoffmann
8ed096f938 speed up reverse lookup of place nodes
Add a special index that contains the place nodes buffered by their
respective area according to their search rank. This replaces the
maximum area search for place nodes and reduces drastically the number
of place nodes that need to be retrieved.
2023-02-17 14:10:01 +01:00
Sarah Hoffmann
abf349fb0d simplify use of secondary importance
The values in the raster are already normalized between 0 and 2**16,
so a simple conversion to [0, 1] will do.

Check for existance of secondary_importance table statically when
creating the SQL function. For that to work importance tables need
to be created before the functions.
2022-10-01 11:01:49 +02:00
Sarah Hoffmann
33ba6896a8 further split up the big geometry index
Adds partial indexes for all geometry queries used during import.
A full index is not necessary anymore at that point. Still create
the index afterwards for use in queries.

Also adds documentation for all indexes on where they are used.
2022-09-21 16:21:41 +02:00
Sarah Hoffmann
f4d3ae6f70 consolidate indexes over geometry_sectors
The index over geometry_sectors are mainly used for ordering
the places which need indexing. That means they function effectively
as a TODO list. Consolodate them so that they always only contain
the places which are still to do. Also add the appropriate index
for the boundary indexing phase.
2022-09-21 10:38:58 +02:00
Sarah Hoffmann
860f3559a1 split up large osmid index on placex
This doesn't do anything in terms of lookup speeds but the resulting
indexes are quite a bit smaller.
2022-09-21 09:24:57 +02:00
Sarah Hoffmann
aef014a47d add indexes for lookup of addressable areas
The generic geometry index has become to slow for that purpose.
2022-09-18 16:57:12 +02:00
Sarah Hoffmann
e6775e713c add typing information to DB properties 2022-07-18 09:47:57 +02:00
Sarah Hoffmann
85d65a2fd2 create idx_place_interpolations for import already
It is needed to look up if a node is part of an interpolation.

Fixes #2608.
2022-02-18 11:11:22 +01:00
Sarah Hoffmann
788505095e add step column to tiger data table
This replaces the interpolationtype column.
2022-01-27 11:54:12 +01:00
Sarah Hoffmann
fea4dbba50 inherit tags from interpolation not parent
Nodes on an interpolation now only get the address tags of
interpolations and then compute their own parent from that. They no
longer inherit the parent directly.
2022-01-27 11:14:55 +01:00
Sarah Hoffmann
9f64c34f1a optimize indexes for interpolation lines
Do not index 'inactive' rows (with startnumber is null) where possible.
2022-01-27 11:14:55 +01:00
Sarah Hoffmann
c3788d765e add consistent SPDX copyright headers 2022-01-03 16:23:58 +01:00
Sarah Hoffmann
3649487f5e use SP-GIST index for building index where available
Point-in-polygon queries are much faster with a SP-GIST geometry
index, so use that for the index used to check if a housenumber
is inside a building.

Only available with Postgis 3. There is an automatic fallback to
GIST for Postgis 2.
2021-10-10 21:55:38 +02:00
Sarah Hoffmann
1b1ed820c3 introduce index for finding surrounding buildings 2021-04-30 11:30:51 +02:00
Sarah Hoffmann
a73711f3cd add extra column for tokenizer
Add a jsonb column to the placex and location_property_osmline tables
which can be used by the installed tokenizer as required. No other
part of the software will use or otherwise rely on this column.
2021-04-30 11:30:51 +02:00
Sarah Hoffmann
fbbdd31399 move word table and normalisation SQL into tokenizer
Creating and populating the word table is now the responsibility
of the tokenizer.

The get_maxwordfreq() function has been replaced with a
simple template parameter to the SQL during function installation.
The number is taken from the parameter list in the database to
ensure that it is not changed after installation.
2021-04-30 11:30:51 +02:00
Sarah Hoffmann
185d369404 remove support for AUX housenumber tables
These tables have never been actively maintained and the code is
completely untested. With the upcomming changes, it is unlikely
that the code remains usable.

This removes the aux tables and all code that references them.
2021-04-30 10:08:29 +02:00
Sarah Hoffmann
e7266b52ae simplify name matching between boundary and place node
Instead of normalising the names simply compare them in lower
case. This removes the dependency on the tokenizer for
linking boundaries and nodes. When looking up the linked places
by place type also allow that one name is simply contained in the
other. This catches the frequent case where one of the names has
an addendum (e.g. Newport vs. City of Newport).

Drops the special index for the name lookup and insted relies
on a slightly extended version of the geometry index used for
reverse lookup. Saves around 100MB on a planet.
2021-04-14 17:52:59 +02:00
Sarah Hoffmann
5dabc0aca8 create postcode id index earlier
Now that the indexer takes care of indexing the postcode tables,
the id index is needed to find the rows to index.
2021-03-22 22:24:56 +01:00
Sarah Hoffmann
09f4d767e4 port index creation to python
Also switches to jinja-based preprocessing, which allows to
simplify the SQL files. Use 'if not exists' where possible
so that the step can be rerun to fix missing indexes.
2021-03-04 11:11:47 +01:00
Sarah Hoffmann
eacabb0e96 move table creation to jinja-based preprocessing 2021-03-03 22:07:51 +01:00
Sarah Hoffmann
976c5e9121 introduce table for in-database properties
Adds a simple table where settings for the database can be
saved. This is useful for state that must not change after
import.
2021-03-01 16:09:17 +01:00
Sarah Hoffmann
b9517c99ae rename sql directory to lib-sql
Also introduces a separate constant for the sql directory, so that
it can be put separately from the rest of the data if required.
2021-02-09 15:26:56 +01:00