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fix divide-by-zero errors

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John Krauss
2017-03-07 16:45:15 +00:00
parent 50ec6dddf6
commit fd3918b29c
1 changed files with 24 additions and 24 deletions
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48
src/pg/sql/41_observatory_augmentation.sql
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@@ -591,19 +591,19 @@ BEGIN
' ELSE ' ||
' SUM(' || numer_tablename || '.' || numer_colname || ' ' ||
' * CASE WHEN ST_Within(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ') ' ||
' THEN ST_Area(_geoms.geom) / ST_Area(' || geom_tablename || '.' || geom_colname || ') ' ||
' THEN ST_Area(_geoms.geom) / Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '), 0) ' ||
' WHEN ST_Within(' || geom_tablename || '.' || geom_colname || ', _geoms.geom) ' ||
' THEN 1 ' ||
' ELSE (ST_Area(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ')) ' ||
' / ST_Area(' || geom_tablename || '.' || geom_colname || '))' ||
' ELSE (ST_Area(ST_MakeValid(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || '))) ' ||
' / Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '), 0))' ||
' END) / '
' NULLIF(SUM(' || denom_tablename || '.' || denom_colname || ' ' ||
' * CASE WHEN ST_Within(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ') ' ||
' THEN ST_Area(_geoms.geom) / ST_Area(' || geom_tablename || '.' || geom_colname || ') ' ||
' THEN ST_Area(_geoms.geom) / Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '), 0) ' ||
' WHEN ST_Within(' || geom_tablename || '.' || geom_colname || ', _geoms.geom) ' ||
' THEN 1 ' ||
' ELSE (ST_Area(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ')) ' ||
' / ST_Area(' || geom_tablename || '.' || geom_colname || '))' ||
' ELSE (ST_Area(ST_MakeValid(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || '))) ' ||
' / Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '), 0))' ||
' END), 0) ' ||
' / (COUNT(*) / COUNT(distinct ' || geom_tablename || '.' || geom_geomref_colname || ')) ' ||
' END '
@@ -615,7 +615,7 @@ BEGIN
' WHEN ST_GeometryType(cdb_observatory.FIRST(_geoms.geom)) = ''ST_Point'' ' ||
' OR cdb_observatory.FIRST(_geoms.geom = ' || geom_tablename || '.' || geom_colname || ')' ||
' THEN cdb_observatory.FIRST(' || numer_tablename || '.' || numer_colname ||
' / (ST_Area(' || geom_tablename || '.' || geom_colname || '::Geography)/1000000)) ' ||
' / (Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '::Geography), 0)/1000000)) ' ||
-- areaNormalized polygon interpolation
-- SUM (numer * (% OBS geom in user geom)) / area of big geom
' ELSE ' ||
@@ -624,10 +624,10 @@ BEGIN
' * CASE WHEN ST_Within(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ') THEN 1 ' ||
' WHEN ST_Within(' || geom_tablename || '.' || geom_colname || ', _geoms.geom) THEN ' ||
' ST_Area(' || geom_tablename || '.' || geom_colname || ') ' ||
' / ST_Area(_geoms.geom)' ||
' ELSE (ST_Area(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ')) ' ||
' / ST_Area(_geoms.geom))' ||
' END / (ST_Area(' || geom_tablename || '.' || geom_colname || '::Geography) / 1000000)) ' ||
' / Nullif(ST_Area(_geoms.geom), 0) ' ||
' ELSE (ST_Area(ST_MakeValid(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || '))) ' ||
' / Nullif(ST_Area(_geoms.geom), 0))' ||
' END / (Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '::Geography), 0) / 1000000)) ' ||
' / (COUNT(*) / COUNT(distinct ' || geom_tablename || '.' || geom_geomref_colname || ')) ' ||
' END '
-- median/average measures with universe
@@ -647,20 +647,20 @@ BEGIN
' SUM(' || numer_tablename || '.' || numer_colname ||
' * ' || denom_tablename || '.' || denom_colname ||
' * CASE WHEN ST_Within(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ') ' ||
' THEN ST_Area(_geoms.geom) / ST_Area(' || geom_tablename || '.' || geom_colname || ') ' ||
' THEN ST_Area(_geoms.geom) / Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '), 0) ' ||
' WHEN ST_Within(' || geom_tablename || '.' || geom_colname || ', _geoms.geom) ' ||
' THEN 1 ' ||
' ELSE (ST_Area(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ')) ' ||
' / ST_Area(' || geom_tablename || '.' || geom_colname || '))' ||
' ELSE (ST_Area(ST_MakeValid(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || '))) ' ||
' / Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '), 0)) ' ||
' END) ' ||
' / SUM(' || denom_tablename || '.' || denom_colname ||
' / Nullif(SUM(' || denom_tablename || '.' || denom_colname ||
' * CASE WHEN ST_Within(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ') ' ||
' THEN ST_Area(_geoms.geom) / ST_Area(' || geom_tablename || '.' || geom_colname || ') ' ||
' THEN ST_Area(_geoms.geom) / Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '), 0) ' ||
' WHEN ST_Within(' || geom_tablename || '.' || geom_colname || ', _geoms.geom) ' ||
' THEN 1 ' ||
' ELSE (ST_Area(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ')) ' ||
' / ST_Area(' || geom_tablename || '.' || geom_colname || '))' ||
' END) ' ||
' ELSE (ST_Area(ST_MakeValid(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || '))) ' ||
' / Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '), 0))' ||
' END), 0) ' ||
' / (COUNT(*) / COUNT(distinct ' || geom_tablename || '.' || geom_geomref_colname || ')) ' ||
'END '
-- prenormalized for summable measures. point or summable only!
@@ -676,11 +676,11 @@ BEGIN
-- SUM (numer * (% user geom in OBS geom))
' SUM(' || numer_tablename || '.' || numer_colname || ' ' ||
' * CASE WHEN ST_Within(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ') ' ||
' THEN ST_Area(_geoms.geom) / ST_Area(' || geom_tablename || '.' || geom_colname || ') ' ||
' THEN ST_Area(_geoms.geom) / Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '), 0) ' ||
' WHEN ST_Within(' || geom_tablename || '.' || geom_colname || ', _geoms.geom) ' ||
' THEN 1 ' ||
' ELSE (ST_Area(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ')) ' ||
' / ST_Area(' || geom_tablename || '.' || geom_colname || '))' ||
' ELSE (ST_Area(ST_MakeValid(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || '))) ' ||
' / Nullif(ST_Area(' || geom_tablename || '.' || geom_colname || '), 0))' ||
' END) ' ||
' / (COUNT(*) / COUNT(distinct ' || geom_tablename || '.' || geom_geomref_colname || ')) ' ||
'END '
@@ -705,8 +705,8 @@ BEGIN
'.' || geom_colname || ')::TEXT'
-- code below will return the intersection of the user's geom and the
-- OBS geom
--'"value": "'' || ' || 'cdb_observatory.FIRST(ST_Intersection(_geoms.geom, ' || geom_tablename ||
-- '.' || geom_colname || '))::TEXT || ''"'''
--'"value": "'' || ' || 'cdb_observatory.FIRST(ST_MakeValid(ST_Intersection(_geoms.geom, ' || geom_tablename ||
-- '.' || geom_colname || ')))::TEXT || ''"'''
ELSE ''
END || ')', ', ')
AS colspecs,