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[1.11.x] Corrected docs regarding MySQL support of Length GIS function. 

Backport of 33421ed10c from master
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Sergey Fedoseev 2017-04-11 22:03:37 +05:00 committed by Tim Graham
parent c30cc8d222
commit 4401e3be36
1 changed files with 5 additions and 5 deletions
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10
docs/ref/contrib/gis/functions.txt
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@ -346,19 +346,19 @@ Returns ``True`` if its value is a valid geometry and ``False`` otherwise.
<https://postgis.net/docs/ST_Length.html>`__, SpatiaLite
Accepts a single geographic linestring or multilinestring field or expression
and returns its length as an :class:`~django.contrib.gis.measure.Distance`
measure. On MySQL, a raw float value is returned when the coordinates
are geodetic.
and returns its length as a :class:`~django.contrib.gis.measure.Distance`
measure.
On PostGIS and SpatiaLite, when the coordinates are geodetic (angular), you can
specify if the calculation should be based on a simple sphere (less
accurate, less resource-intensive) or on a spheroid (more accurate, more
resource-intensive) with the ``spheroid`` keyword argument.
MySQL doesn't support length calculations on geographic SRSes.
.. versionchanged:: 1.11
In older versions, a raw value was returned on MySQL when used on
projected SRS.
In older versions, a raw value was returned on MySQL.
``MakeValid``
=============