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-- postgis.gdal_datapath
SELECT
CASE
WHEN strpos(postgis_gdal_version(), 'GDAL_DATA') <> 0
THEN false
ELSE NULL
END;
SET postgis.gdal_datapath = '';
SELECT
CASE
WHEN strpos(postgis_gdal_version(), 'GDAL_DATA') <> 0
THEN NULL
ELSE TRUE
END;
SET postgis.gdal_datapath = default;
SELECT
CASE
WHEN strpos(postgis_gdal_version(), 'GDAL_DATA') <> 0
THEN false
ELSE NULL
END;
-- postgis.gdal_enabled_drivers
SET client_min_messages TO warning;
SET postgis.gdal_enabled_drivers = 'DISABLE_ALL';
SELECT count(*) = 0 FROM ST_GDALDrivers();
SHOW postgis.gdal_enabled_drivers;
SET postgis.gdal_enabled_drivers = 'ENABLE_ALL';
SHOW postgis.gdal_enabled_drivers;
SELECT count(*) > 0 FROM ST_GDALDrivers();
SET postgis.gdal_enabled_drivers = 'GTiff PNG JPEG';
SHOW postgis.gdal_enabled_drivers;
SELECT count(*) = 3 FROM ST_GDALDrivers();
SET postgis.gdal_enabled_drivers = 'DISABLE_ALL';
SHOW postgis.gdal_enabled_drivers;
SELECT count(*) = 0 FROM ST_GDALDrivers();
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