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Make OBS_GetDemographicSnapshot return json

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This commit is contained in:
Rafa de la Torre
2016-04-19 17:54:56 +02:00
parent 077f8fedf5
commit 987cfde7b6
3 changed files with 9 additions and 104 deletions
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103
src/pg/sql/41_observatory_augmentation.sql
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@@ -24,108 +24,13 @@
CREATE OR REPLACE FUNCTION cdb_observatory.OBS_GetDemographicSnapshot(geom geometry, time_span text default '2009 - 2013', geometry_level text default '"us.census.tiger".block_group')
RETURNS json
AS $$
BEGIN
RETURN row_to_json(cdb_observatory._OBS_GetDemographicSnapshot(geom, time_span, geometry_level));
END;
$$ LANGUAGE plpgsql;
CREATE OR REPLACE FUNCTION cdb_observatory._OBS_GetDemographicSnapshot(geom geometry, time_span text default '2009 - 2013', geometry_level text default '"us.census.tiger".block_group' )
RETURNS TABLE(
total_pop NUMERIC,
male_pop NUMERIC,
female_pop NUMERIC,
median_age NUMERIC,
white_pop NUMERIC,
black_pop NUMERIC,
asian_pop NUMERIC,
hispanic_pop NUMERIC,
amerindian_pop NUMERIC,
other_race_pop NUMERIC,
two_or_more_races_pop NUMERIC,
not_hispanic_pop NUMERIC,
--not_us_citizen_pop NUMERIC,
--workers_16_and_over NUMERIC,
--commuters_by_car_truck_van NUMERIC,
--commuters_drove_alone NUMERIC,
--commuters_by_carpool NUMERIC,
--commuters_by_public_transportation NUMERIC,
--commuters_by_bus NUMERIC,
--commuters_by_subway_or_elevated NUMERIC,
--walked_to_work NUMERIC,
--worked_at_home NUMERIC,
--children NUMERIC, -- TODO we should be able to get this at BG
households NUMERIC,
--population_3_years_over NUMERIC,
--in_school NUMERIC,
--in_grades_1_to_4 NUMERIC,
--in_grades_5_to_8 NUMERIC,
--in_grades_9_to_12 NUMERIC,
--in_undergrad_college NUMERIC,
pop_25_years_over NUMERIC,
high_school_diploma NUMERIC,
less_one_year_college NUMERIC,
one_year_more_college NUMERIC,
associates_degree NUMERIC,
bachelors_degree NUMERIC,
masters_degree NUMERIC,
--pop_5_years_over NUMERIC,
--speak_only_english_at_home NUMERIC,
--speak_spanish_at_home NUMERIC,
--pop_determined_poverty_status NUMERIC,
--poverty NUMERIC,
median_income NUMERIC,
gini_index NUMERIC,
income_per_capita NUMERIC,
housing_units NUMERIC,
vacant_housing_units NUMERIC,
vacant_housing_units_for_rent NUMERIC,
vacant_housing_units_for_sale NUMERIC,
median_rent NUMERIC,
percent_income_spent_on_rent NUMERIC,
owner_occupied_housing_units NUMERIC,
million_dollar_housing_units NUMERIC,
mortgaged_housing_units NUMERIC,
--pop_15_and_over NUMERIC,
--pop_never_married NUMERIC,
--pop_now_married NUMERIC,
--pop_separated NUMERIC,
--pop_widowed NUMERIC,
--pop_divorced NUMERIC,
commuters_16_over NUMERIC,
commute_less_10_mins NUMERIC,
commute_10_14_mins NUMERIC,
commute_15_19_mins NUMERIC,
commute_20_24_mins NUMERIC,
commute_25_29_mins NUMERIC,
commute_30_34_mins NUMERIC,
commute_35_44_mins NUMERIC,
commute_45_59_mins NUMERIC,
commute_60_more_mins NUMERIC,
aggregate_travel_time_to_work NUMERIC,
income_less_10000 NUMERIC,
income_10000_14999 NUMERIC,
income_15000_19999 NUMERIC,
income_20000_24999 NUMERIC,
income_25000_29999 NUMERIC,
income_30000_34999 NUMERIC,
income_35000_39999 NUMERIC,
income_40000_44999 NUMERIC,
income_45000_49999 NUMERIC,
income_50000_59999 NUMERIC,
income_60000_74999 NUMERIC,
income_75000_99999 NUMERIC,
income_100000_124999 NUMERIC,
income_125000_149999 NUMERIC,
income_150000_199999 NUMERIC,
income_200000_or_more NUMERIC,
land_area NUMERIC)
AS $$
DECLARE
target_cols text[];
names text[];
vals NUMERIC[];
q text;
rec record;
BEGIN
target_cols := Array['total_pop',
'male_pop',
@@ -225,12 +130,12 @@ BEGIN
cdb_observatory._OBS_BuildSnapshotQuery(target_cols) ||
' FROM a';
RETURN QUERY
EXECUTE
q
USING geom, target_cols, time_span, geometry_level;
USING geom, target_cols, time_span, geometry_level
INTO rec;
RETURN;
RETURN row_to_json(rec);
END;
$$ LANGUAGE plpgsql;