[postgis-tickets] [PostGIS] #3384: Patch up docs reflect 9.1 is not supported in 2.3

[PostGIS]

#3384: Patch up  docs reflect 9.1 is not supported in 2.3
----------------------------+---------------------------
  Reporter:  robe           |      Owner:  robe
      Type:  defect         |     Status:  new
  Priority:  medium         |  Milestone:  PostGIS 2.3.0
 Component:  documentation  |    Version:  trunk
Resolution:                 |   Keywords:
----------------------------+---------------------------
Description changed by robe:

Old description:

> Since PostgreSQL 9.1, is going to reach EOL probably before 2.3 release,
> it's time to kill it as noted in
>
> https://lists.osgeo.org/pipermail/postgis-devel/2015-November/025480.html
>
> Couple of things need changing, some for 2.2 as well
>
> 1)  our header in docs says if compiling with less than 9.1 (that header
> should be changed to compiling without raster support) since now it's
> only relevant if you are compiling without raster support or you for
> whatever reason want to use scripts.
>
> http://postgis.net/docs/manual-2.2/postgis_installation.html#create_new_db
>
> This should really read without extension support (no raster)
>
> So it's clearer to folks installing wo raster that they need to use these
> instructions.
>
> 2) Need to update minimum requirements in docs
>

> We should start looking thru our code, to see what stuff we can leverage
> that is only supported in 9.2+ and take out any ifDEF stuff targetting <
> 9.2.  That can be saved for later as a separate ticket.

New description:

 Since PostgreSQL 9.1, is going to reach EOL probably before 2.3 release,
 it's time to kill it as noted in

 https://lists.osgeo.org/pipermail/postgis-devel/2015-November/025480.html

 Couple of things need changing, some for 2.2 as well

 1)  our header in docs says if compiling with less than 9.1 (that header
 should be changed to compiling without raster support) since now it's only
 relevant if you are compiling without raster support or you for whatever
 reason want to use scripts.

 http://postgis.net/docs/manual-2.2/postgis_installation.html#create_new_db

 This should really read without extension support (no raster)

 So it's clearer to folks installing wo raster that they need to use these
 instructions.

 2) Need to update minimum requirements in docs


 We should start looking thru our code, to see what stuff we can leverage
 that is only supported in 9.2+ and take out any ifDEF stuff targetting <
 9.2.  That can be saved for later as a separate ticket.


 3) Also change our configure to not allow compiling against lower than
 PostgreSQL 9.2, because backend guc stuff and raster gets pretty nasty on
 9.1

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Ticket URL: <https://trac.osgeo.org/postgis/ticket/3384#comment:2>
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