I'm trying to convert geometries to images, and the functions to do so don't seem to exist.
The following example is from the ST_AsRaster Docs WHich specify the requirements are Availability: 2.0.0 - requires GDAL >= 1.6.0.
SELECT ST_AsPNG(ST_AsRaster(ST_Buffer(ST_Point(1,5),10),150, 150));
This results in:
ERROR: function st_asraster(geometry, integer, integer) does not exist
LINE 1: SELECT ST_AsPNG(ST_AsRaster(ST_Buffer(ST_Point(1,5),10),150,...
I found some info that points towards needing GDAL drivers, however, when I try:
SELECT short_name, long_name FROM ST_GdalDrivers();
I get:
ERROR: function st_gdaldrivers() does not exist
LINE 1: SELECT short_name, long_name FROM ST_GdalDrivers();
I have no idea where to even go to try solving this, why don't the functions exist, was there some config I needed to add, some doc I didn't read?
Even the https://postgis.net/docs/RT_reference.html seems to suggest that it should "just work"?
This is installed from the package manager on Ubuntu 20.0.4.
Version Info SELECT PostGIS_Full_Version();:
POSTGIS="3.0.0 r17983" [EXTENSION]
PGSQL="120"
GEOS="3.8.0-CAPI-1.13.1 "
PROJ="6.3.1"
LIBXML="2.9.4"
LIBJSON="0.13.1"
LIBPROTOBUF="1.3.3"
WAGYU="0.4.3 (Internal)"
You must have forgotten to install the postgis_raster extension:
CREATE EXTENSION postgis_raster;
This extension is new in PostGIS 3.0; before that, its objects were part of the postgis extension.
The documentation mentions that:
Once postgis is installed, it needs to be enabled in each individual database you want to use it in.
psql -d yourdatabase -c "CREATE EXTENSION postgis;"
-- if you built with raster support and want to install it --
psql -d yourdatabase -c "CREATE EXTENSION postgis_raster;"
One of our PostgreSQL 11.4 deployments in Congo uses the CAT timezone (Africa/Kigali +02) and one of our function chokes when trying to convert human-input timestamps to actual TIMESTAMPTZ data.
For example:
SELECT '2019-10-17 00:00:00 CAT'::TIMESTAMPTZ;
ERROR: invalid input syntax for type timestamp with time zone: "2019-10-17 00:00:00 CAT"
LINE 2: SELECT '2019-10-17 00:00:00 CAT'::TIMESTAMPTZ
^
SQL state: 22007
Character: 9
But when I try with CEST (Central European, also +02) it works.
SELECT '2019-10-17 00:00:00 CEST'::TIMESTAMPTZ;
"2019-10-17 00:00:00+02"
Incidentally, converting from epoch to CAT also works
select to_timestamp(1571263200);
"2019-10-17 00:00:00+02"
Version:
"PostgreSQL 11.4 (Ubuntu 11.4-1.pgdg18.04+1) on x86_64-pc-linux-gnu, compiled by gcc (Ubuntu 7.4.0-1ubuntu1~18.04.1) 7.4.0, 64-bit" on Ubuntu 18.04.2 LTS
For whatever reason, 'CAT' is not valid for input by default, presumably someone felt it was ambiguous or something. You could append the line
CAT 7200 # Central Africa Time
to the file "$SHAREDIR/timezonesets/Default" to make this work.
Or you could create a file "$SHAREDIR/timezonesets/Africa" with the contents:
#INCLUDE Default
#OVERRIDE
CAT 7200 # Central Africa Time
And then set the parameter timezone_abbreviations to 'Africa'.
I am not horologist, you might want to research why CAT is missing before blindly adding it. Also, if you go either of the above routes, you should document it clearly someplace. You will need to repeat the steps you took when you upgrade PostgreSQL, or restore or move your database.
Or, you could preprocess your user input to replace 'CAT' with 'Africa/Kigali'.
Incidentally, converting from epoch to CAT also works
select to_timestamp(1571263200);
"2019-10-17 00:00:00+02"
'CAT' does not appear in your example. So it is not clear what this is an example of.
I'm trying to set up a database and have to create a function:
create or replace function uuid() returns uuid as 'moss_uuidgen', 'moss_uuidgen' language 'C' strict;
Every time I execute that postgre tells me that in the .so file there is an undefined symbol called palloc
I know this version of Postgresql is outdated but it seems to be the only version working with my project. Does anyone know why postgre doesn't seem to know palloc?
moss=# create or replace function uuid() returns uuid as 'moss_uuidgen',
moss-# 'moss_uuidgen' language 'C' strict;
FEHLER: konnte Bibliothek »/usr/lib/postgresql/8.4/lib/moss_uuidgen.so« nicht laden: /usr/lib/postgresql/8.4/lib/moss_uuidgen.so: undefined symbol: palloc
moss=# \q
moss#McWiki:/usr/local$
the source file is avialble here: https://foundry.openuru.org/hg/MOSS/file/3e78d60a5282/postgresql
I build the files using make and make install.
OS: Ubuntu Server 20.04 LTS with Postgre 8.4
Thanks for the help, I realised that I build the files for psql 9.4 and tried to use it with psql 8.4, what was really dumb. Now afte rebuilding with 8.4 it works fine (at least to create the function, db is still not working with my gameserver)
I'm following the heroku tutorial for Heroku/Facebook integration (but I suspect this issue has nothing to do with facebook integration) and I got stuck on the stage where I was supposed to start foreman (I've installed the Heroku installbelt for windows, which includes foreman):
> foreman start
gives:
C:/RailsInstaller/Ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/dependency.rb:247:in `to_specs': Could not find foreman (>= 0) amongst [POpen4-0.1.4, Platform-0.4.0, ZenTest-4.6.2, abstract-1.0.0, actionm
ailer-3.0.11, actionmailer-3.0.9, actionpack-3.0.11, actionpack-3.0.9, activemodel-3.0.11, activemodel-3.0.9, activerecord-3.0.11, activerecord-3.0.9, activerecord-sqlserver-adapter-3.0.15, activereso
urce-3.0.11, activeresource-3.0.9, activesupport-3.0.11, activesupport-3.0.9, addressable-2.2.6, annotate-2.4.0, arel-2.0.10, autotest-4.4.6, autotest-growl-0.2.16, autotest-rails-pure-4.1.2, autotest
-standalone-4.5.8, builder-2.1.2, bundler-1.0.15, diff-lcs-1.1.3, erubis-2.6.6, factory_girl-1.3.3, factory_girl_rails-1.0, faker-0.3.1, gravatar_image_tag-1.0.0.pre2, heroku-2.14.0, i18n-0.5.0, json-
1.6.1, launchy-2.0.5, mail-2.2.19, mime-types-1.17.2, mime-types-1.16, nokogiri-1.5.0-x86-mingw32, open4-1.1.0, pg-0.11.0-x86-mingw32, polyglot-0.3.3, polyglot-0.3.1, rack-1.2.4, rack-1.2.3, rack-moun
t-0.6.14, rack-test-0.5.7, rails-3.0.11, rails-3.0.9, railties-3.0.11, railties-3.0.9, rake-0.9.2.2, rake-0.8.7, rb-readline-0.4.0, rdoc-3.11, rdoc-3.8, rest-client-1.6.7, rspec-2.6.0, rspec-core-2.6.
4, rspec-expectations-2.6.0, rspec-mocks-2.6.0, rspec-rails-2.6.1, rubygems-update-1.8.11, rubyzip-0.9.4, rubyzip2-2.0.1, spork-0.9.0.rc8-x86-mingw32, sqlite3-1.3.3-x86-mingw32, sqlite3-ruby-1.3.3, te
rm-ansicolor-1.0.7, thor-0.14.6, tiny_tds-0.4.5-x86-mingw32, treetop-1.4.10, treetop-1.4.9, tzinfo-0.3.31, tzinfo-0.3.29, webrat-0.7.1, will_paginate-3.0.pre2, win32-api-1.4.8-x86-mingw32, win32-open3
-0.3.2-x86-mingw32, win32-process-0.6.5, windows-api-0.4.0, windows-pr-1.2.1, zip-2.0.2] (Gem::LoadError)
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems/dependency.rb:256:in `to_spec'
from C:/RailsInstaller/Ruby1.8.7/lib/ruby/site_ruby/1.8/rubygems.rb:1210:in `gem'
from C:/Program Files (x86)/ruby-1.9.3/bin/foreman:18
Since I'm a complete noob in this I'm not sure if my question here is a duplicate for Error on 'foreman start' while following the Python/Flask Heroku tutorial (because it's not quite the same error). If so, does anyone have a method for deploying a development environment on windows (for Heruko, Python, Facebook app)? Or should I use Ubuntu for this?
Thanks
Although this question doesn't seem to be of interest to anyone here (5 views in ~2 hours, 0 answers, 0 comments...), I have found the solution and ready to share it with anyone that will encounter it:
Install the latest ruby from rubyinstaller.org (1.9.3-p194) - Sometimes there is a collision installs of the same version, in my case I've just uninstalled all versions of ruby, but if you already have other application that needs older version then you have to be more careful
Check that your system is default to use this version by invoking ruby -v in command line prompt: and getting ruby 1.9.3p194 (2012-04-20) [i386-mingw32] (you may have to close and re-open cmd, to include the new environment variables)
Still in cmd, invoke:
gem install foreman
gem install taps
now go to your Procfile app (e.g. your heroku example app from the tutorial) and execute foreman start, you should see something like this:
18:23:52 web.1 | started with pid 7212
18:23:54 web.1 | * Running on http://0.0.0.0:5000/
18:23:54 web.1 | * Restarting with reloader
after manually adding the ruby path to my system PATH environment variable (Win 7), it still didn't work.
i had to change the default install path of Heroku from
C:\Program Files(x86)\Heroku
to
C:\Heroku
as it didn't properly handle the space in the path. I also tried C:\PROGRA~2\Heroku\ruby-1.9.2\bin to no avail. I imagine any space-less path will do.
hth
I am running PostgreSQL 8.4.4 with Ubuntu 10.04.
I am trying to generate uuid but can't find a way to do it.
I do have the uuid-ossp.sql in /usr/share/postgresql/8.4/contrib/uuid-ossp.sql
When I try this is what I get :
postgres=# SELECT uuid_generate_v1();
ERROR: function uuid_generate_v1() does not exist
LINE 1: SELECT uuid_generate_v1();
^
HINT: No function matches the given name and argument types. You might need to add explicit type casts.
Any idea ?
The stuff in contrib aren't run automatically. You have to run it yourself to install the functions. I don't know about the 8.4 version, but in the 8.3 version it appears to only install it per-database, so open up the database you're using in psql and issue the command \i /usr/share/postgresql/8.4/contrib/uuid-ossp.sql
I saw this in my PostgreSQL travels. It requires the pgcrypto contrib module.
CREATE OR REPLACE FUNCTION generate_uuid() RETURNS UUID AS
$$
SELECT ENCODE(GEN_RANDOM_BYTES(16), 'hex')::UUID
$$ LANGUAGE SQL IMMUTABLE;