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fix divide by zero issues for denominated

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This commit is contained in:
John Krauss
2016-12-21 23:22:31 +00:00
parent 6b071db588
commit b7943ad8d2
1 changed files with 2 additions and 2 deletions
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4
src/pg/sql/41_observatory_augmentation.sql
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@@ -765,14 +765,14 @@ BEGIN
' ELSE (ST_Area(ST_Intersection(_geoms.geom, ' || geom_tablename || '.' || geom_colname || ')) ' ||
' / ST_Area(' || geom_tablename || '.' || geom_colname || '))' ||
' 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 || ') ' ||
' 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) '
' END), 0) '
' END '
-- areaNormalized
WHEN LOWER(normalization) LIKE 'area%' OR (normalization IS NULL AND numer_aggregate ILIKE 'sum')