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A bit of internal documentation

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Rafa de la Torre 2015-12-21 13:16:57 +01:00
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scripts-available/CDB_Overviews.sql
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-- Determine the max feature density of a given dataset.
-- Scope: private.
-- Parameters
-- reloid: oid of the input table. It must be a cartodbfy'ed table.
-- nz: number of zoom levels to consider from z0 upward.
-- Return value: feature density (num_features / webmercator_squared_meters).
CREATE OR REPLACE FUNCTION _CDB_Feature_Density(reloid REGCLASS, nz integer) CREATE OR REPLACE FUNCTION _CDB_Feature_Density(reloid REGCLASS, nz integer)
RETURNS FLOAT8 RETURNS FLOAT8
AS $$ AS $$