Hello postgis list!
I have a large query, it was going good, but I wanted to add a
restriction to a path, this my WHERE clause:
WHERE
ST_Distance_Sphere(ST_GeomFromText('POINT($lat1
$lng1)'),
ST_Line_Substring(re.path, 0, 0.5)) < $rad1
and
ST_Distance_Sphere(ST_GeomFromText('POINT($lat2
$lng2)'),
ST_Line_Substring(re.path, 0, 0.5)) < $rad2
and
ST_Line_Locate_Point(ST_Line_Substring(re.path, 0, 0.5),
'POINT($lat1 $lng1)')
<
ST_Line_Locate_Point(ST_Line_Substring(re.path, 0, 0.5),
'POINT($lat2 $lng2)')
the $vars get replaced with good values.
When I don't use the ST_Line_Substring, I don't get an error, but when
I use it, I get "ERROR: 2nd arg must be smaller then 3rd arg". I
assume that someway in someplace something is not understanding that 0
is smaller than 0.5, but I really don't see the error in anyway.
Has anyone an indea of what is going on?
Thanks!! :D
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