observatory-extension/NEWS.md

1.4.0 (2017-03-21)

API Changes

• Allow for override of target_area and target_geoms in OBS_GetMeta (#276). This allows the interface to work with points and sparse areas much btter.
• Allow for override of max_timespan_rank and max_score_rank on an item-by-item basis for metadata.
• numer_description, geom_description, denom_description, numer_t_description, denom_t_description and geom_t_description now returned as part of OBS_GetMeta.

Improvements

• Reduced amount of simplification done on input geometries (from 0.0001 above 500 points to 0.00001 above 1000 points).
• Added tests to confirm that accurate results are returned from automatic boundary selection

1.3.5 (2017-03-15)

No changes. Artifact to allow for data update.

1.3.4 (2017-03-10)

Bugfixes

• Remove erroneously committed RAISE NOTICE in OBS_GetData

1.3.3 (2017-03-10)

Bugfixes

• Resolve divide-by-zero errors in cases where the intersection of an Observatory geometry and user geometry has 0 area (#265)
• Run MakeValid on geometry's when intersecting, if necessary (#268)

Improvements

• Add performance tests for multiple columns in OBS_GetData
• Major performance boost for autotest.py through the use of multi-column OBS_GetData instead of separate OBS_GetMeasure calls for every single measurement. (#268)
• Major performance boost for OBS_GetData in cases where multiple columns are requested. Previously, each additional column would result in a linear slowdown, even if geometries could be reused. (#267)

1.3.2 (2017-03-02)

Bugfixes

• Accept "prenormalized" as well as "predenominated" to bypass normalization. This fixes issues with Camshaft.

1.3.1 (2017-02-16)

Improvements

• It is now possible to obtain measures that are averages or medians over arbitrary polygons (#254.
• Added test point for Australian data
• OBS_GetLegacyMetadata now returns median and averages in cases where it is called for measures for polygons

1.3.0 (2017-01-17)

API Changes

• OBS_GetMeasureDataMulti() is now called OBS_GetData()
• OBS_GetMeasureMetaMulti() is now called OBS_GetMeta()
• Additional signature for OBS_GetData which can take an array of TEXT, mimicking functionality of OBS_GetMeasureByID

Improvements

• Generate fixtures from obs_meta
• Remove unused table-level code
• Refactor all augmentation and geometry functions to obtain data from OBS_GetMeta() and OBS_GetData().
• Improvements to OBS_GetMeta() so it can still fill in metadata in cases where only a geometry is being requested.
• OBS_GetData() returns two-column table instead of anonymous record.
• OBS_GetData() can return categorical (text) and geometries

Bugfixes

• Remove unnecessary dependency on postgres_fdw
• OBS_GetData() now aggregates measures with mixed geoms correctly

API Changes

1.2.1 (2017-01-17)

Improvements

• Support Point/LineString in responses from OBS_GetBoundary. (#243)

1.2.0 (2016-12-28)

API Changes

• Added OBS_GetMeasureDataMulti, which takes an array of geomvals and parameters as JSON, and returns a set of RECORDs keyed by the vals of the geomvals.
• Added OBS_GetMeasureMetaMulti, which takes sparse metadata as JSON (for example, the measure ID) and returns a filled-out version of the metadata sufficient for use with OBS_GetMeasureDataMulti.

Improvements

• Move tests to 2015
• Fixes to _OBS_GetGeometryScores to avoid spamming NOTICEs about all pixels for a band being NULL
• Tests for _OBS_GetGeometryScores with complex geometries
• Performance tests for OBS_GetMeasureDataMulti
• Return both table_id and column_id from _OBS_GetGeometryScores

1.1.7 (2016-12-15)

Improvements

• Use simpler raster table and simplified _OBSGetGeometryScores functions to improve performance
• In cases where geometry passed into geometry scoring function has greater than 10K points, simply use its buffer instead
• Add IMMUTABLE to _OBSGetGeometryScores
• Add tests explicitly for _OBSGetGeometryScores in perftest.py
• Yields a ~50% improvement in performance for _OBSGetGeomeryScores.

1.1.6 (2016-12-08)

Bugfixes

• Fix divide by zero condition in "denominator" branch of OBS_GetMeasure when passing in a polygon (#233).

Improvements

• Use ST_Subdivide to improve performance when functions are called on very complex geometries (with many points) (#232)
• Improve raster scoring to more heavily weight boundaries with nearer to correct number of points, and penalize boundaries with lots of blank space (#232)
• Remove some redundant area calculations in OBS_GetMeasure (#232)
• Replace use of format('%L', var) with proper use of EXECUTE and $1 etc. variables (#231)
• Add test point for Brazil (#229)
• Improvements to performance tests (#229)
  • Support simple and complex geometries
  • Handle all code branches
  • Add ability to persist results to JSON for graph visualization later

1.1.5 (2016-11-29)

Bugfixes

• Return NULL instead of raising an exception when a measure is requested for a geometry where it does not exist (#220).

1.1.4 (2016-11-21)

Bugfixes

• Fix duplicate subsections with only a partial set of measures appearing from OBS_GetLegacyMetadata (#216).

1.1.3 (2016-11-15)

• Temporarily ignore EU data for the sake of testing

1.1.2 (2016-11-09)

Improvements

• Update public OBS_GetMeasure to use highest ranked boundary, aiming for 500 geoms. (#190)
• Update test generation to capture our raster tiles
• Standardize the way we generate our test points for autotest.py
• Add points for epa and eurostat
• Should support database dump generated 20161109

API Changes (Internal)

• Add internal _OBS_GetGeometryScores

1.1.1 (2016-10-14)

Improvements

• Test points for Canada and France (#204)

1.1.0 (2016-10-04)

Bugfixes

• Fixed some minor errors in test suite

Improvements

• We now generate test fixtures from local data instead of remote server (#120)

API Changes

• New function, OBS_LegacyBuilderMetadata, which resolves (#133)
• Creates "dimensional" metadata grabbing functions (OBS_GetAvailableNumerators, OBS_GetAvailableDenominators, OBS_GetAvailableGeometries, OBS_GetAvailableTimespans) which will be used for obtaining metadata in the replacement for the Data Library (CartoDB/design#104). This is also referred to here (CartoDB/design#68).

1.0.7 (2016-09-20)

Bugfixes

• NULL geometries or geometry IDs no longer result in an exception from any augmentation functions (#178)

Improvements

• Automatic tests work for Canada and Thailand

1.0.6 (2016-09-08)

Improvements

• New function structure for Table-level functions which allows to separate the framework logic from the observatory measure functions.

1.0.5 (2016-08-12)

Improvements

• Integration tests moved to src/python/test/, and can be run without hitting any HTTP SQL API.

1.0.4 (2016-07-26)

Bugfixes

• Always default arguments to NULL, which prevents duplication & overwrite by dataservices-api (#173)

1.0.3 (2016-07-25)

Bugfixes

• Raise exception instead of crashing when OBS_GetMeasure is passed a polygon in combination with a non-summable measure (cartodb/issues #9063)
• Unnecessary dependencies on cartodb and plpythonu removed (#161)
• Tests forced to run in-order on all systems (#162)
• Area normalization done by square kilometer instead of square meter for polygons (#158)
• postgres-fdw installed as required in unit test environment (#166)

Improvements

• Added tests to make sure all functions can handle explicit NULL as default (#159)
• Buffer and snaptogrid used to be far more liberal accepting problem geoms (#170)

1.0.2 (2016-07-12)

Bugfixes

• Fix for OBS_GetCategory outside the US (#135)
• OBS_GetMeasure now respects the normalize parameter even when passed a multi/polygon. Previously, no normalization was erroneously assumed.

Improvements

• Automated tests cover Mexico data
• obs_meta is now provisioned during unit tests
• obs_meta is now used during end-to-end tests
• OBS_GetMeasureByID uses obs_meta internally, which should help performance
• OBS_GetCategory uses obs_meta internally, which should help perfromance
• OBS_GetCategory will pick the correct category for an arbitrary polygon (the category covering the highest % of that polygon)
• OBS_GetMeasure has been updated to use obs_meta internally, which should help performance
• OBS_GetMeasure now can be passed "none" and skip normalization by area or denominator for points
• Fixtures are only loaded at the start of the unit test suite, and dropped at the end, instead of at the start/end of each individual test file
• Comment noisy NOTICEs (#73)

1.0.1 (2016-07-01)

Bugfixes

• Fix for ERROR: Operation on mixed SRID geometries #130

1.0.0 (6/27/2016)

• Incremented to 1.0.0 to be in compliance with SemVer, which disallows use of 0.x.x versions. This also reflects that we are already in production.

API Changes

• Added OBS_DumpVersion to look up version data (#118)

Improvements

• Whether data exists for a geom now determined by polygon intersection instead of BBOX overlap (#119)
• Automated tests cover Spanish and UK data (#115)
• Automated tests cover OBS_GetUSCensusMeasure (#105)

Bugfixes

• Geom table can have different geomref_colname than the data table (#123)

0.0.5 (5/27/2016)

• Adds new function OBS_GetMeasureById (#96)

0.0.4 (5/25/2016)

• Updates queries involving US Census measure tags to be more generic (#95)
• Fixes tests which relied on an erroneous subset of block groups (#95)

0.0.3 (5/24/2016)

• Generalizes internal queries to properly pull from multiple named geometry references
• Adds tests for Who's on First boundaries
• Improves automatic fixtures testing script

0.0.2 (5/19/2016)

• Adds Data Observatory exploration functions
• Adds Data Observatory boundary functions
• Adds Data Observatory measure functions
• Adds script to generate fixtures for tests
• Adds script for the automatic testing of metadata
• Adds full documentation for all included functions
• removes cartodb extension dependency

0.0.1 (5/19/2016)

• First iteration of OBS_GetDemographicSnapshot(location Geometry(Point,4326))