Error Permission Denied For Language C
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Grant Superuser Postgres
up vote 20 down vote favorite 8 When create a function something like this with a non-super user i am getting the below error: ERROR: permission denied for language c SQL state: 42501 The function created is : CREATE OR REPLACE FUNCTION dblink_connect (text) RETURNS text AS '$libdir/dblink','dblink_connect' LANGUAGE C STRICT; But if i wanted to give permission on langauge C to my non-super user, i am postgres make user superuser getting the below error: postgres=# grant usage on language c to caixa; ERROR: language "c" is not trusted That means, non-super user can't create function with language C? or is there any thing i am doing wrong? c postgresql share|improve this question edited Oct 7 '15 at 7:32 iharob 39.4k42851 asked Aug 10 '11 at 16:34 vchitta 65341527 Probably you don't need grant USAGE privilege to caixa role explicitly, because it's granted to PUBLIC (all roles) already. The key here is lanpltrusted property from pg_language system catalog. –Grzegorz Szpetkowski Aug 10 '11 at 17:01 add a comment| 2 Answers 2 active oldest votes up vote 27 down vote accepted That's right, according to doc: Only superusers can create functions in untrusted languages Quick check: SELECT lanpltrusted FROM pg_language WHERE lanname LIKE 'c'; lanpltrusted -------------- f (1 row) If you really want this, then you could modify pg_language system catalog (ALTER LANGUAGE doesn't have such option): UPDATE pg_language SET lanpltrusted = true WHERE lanname LIKE 'c'; share|improve this answer answered Aug 10 '11 at 16:50 Grzegorz Szpetkowski 23k24783 great it worked. –vchitta Aug 10 '11 at 19:48 The update must be
log in tour help Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Database Administrators Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up http://stackoverflow.com/questions/7014437/error-permission-denied-for-language-c Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top RDS crosstab: ERROR: permission denied for language c up vote 3 down vote favorite We're currently using PostgreSQL 9.2 in our production database, we want to migrate to a new RDS instance, using PostgreSQL 9.4. However, we need to have permission to create a http://dba.stackexchange.com/questions/128691/rds-crosstab-error-permission-denied-for-language-c function, but only superuser can create functions on RDS and my user can't be granted as superuser. CREATE FUNCTION crosstab50(text, OUT rownumber integer, OUT c1 text,...) RETURNS SETOF record LANGUAGE c STABLE STRICT AS '$libdir/tablefunc', 'crosstab'; But we're getting this error during our restore operation: ERROR: permission denied for language c postgresql postgresql-9.4 amazonrds pivot aws share|improve this question edited Feb 12 at 8:51 Erwin Brandstetter 53.2k584143 asked Feb 9 at 7:53 Valter Henrique 1575 How to use the basic crosstab() function: PostgreSQL Crosstab Query –Erwin Brandstetter Feb 12 at 8:49 add a comment| 1 Answer 1 active oldest votes up vote 4 down vote accepted RDS doesn't let you install arbitrary C functions. It's a restricted environment. crosstab is part of the tablefunc extension. You may be able to CREATE EXTENSION tablefunc if it's on the whitelist but you won't be able to add new variants, even if the underlying C function is already loaded and approved. share|improve this answer answered Feb 9 at 7:58 Craig Ringer 28.2k14082 I was able to run CREATE EXTENSION tablefunc. How can I use it now ? I'm new to postgres. –Valter Henrique Feb 9 at
denied for language plr" Faisal Ali March 07, 2016 16:11 Problem As non-superuser trying to https://discuss.pivotal.io/hc/en-us/articles/204495647-Creating-PL-R-function-as-non-superuser-fails-with-ERROR-permission-denied-for-language-plr- create a PL/R function will result in error message "ERROR: https://github.com/2ndQuadrant/repmgr/issues/74 permission denied for language plr" Cause The issue is because PL/R is not a trusted language as indicated by the column "lanpltrusted" flightdata=> select * from pg_language where lanname='plr'; lanname | lanispl | lanpltrusted | lanplcallfoid | lanvalidator | permission denied lanacl ----------+---------+--------------+---------------+--------------+-------- plr | t | f | 57662 | 0 | The column "lanpltrusted" is true, if this is a trusted language, which means that it is believed not to grant access to anything outside the normal SQL execution environment. Only superusers can create functions in untrusted languages. Solution permission denied for You can use the below workaround to create the function as non-superuser -- Create a super-user role flightdata=# create role dba superuser; CREATE ROLE flightdata=# grant dba to aaa; GRANT ROLE -- As non superuser set the above mentioned role and create the function and once done reset it [gpadmin@mdw ~]$ psql -U aaa Password for user aaa: psql (8.2.15) Type "help" for help. flightdata=> CREATE OR REPLACE FUNCTION text01.test01()flightdata-> RETURNS character[] ASflightdata-> $BODY$flightdata$> version : HAWQ 1.2.1.0flightdata$> library(cairoDevice)flightdata$> library(RGtk2)flightdata$> pixmap <- gdkPixmapNew(w=500, h=500, depth=24)flightdata$> gdkDrawableSetColormap(pixmap, gdkColormapGetSystem())flightdata$> asCairoDevice(pixmap)flightdata$> plot(c(1:10))flightdata$> plot_pixbuf <- gdkPixbufGetFromDrawable(NULL, pixmap,flightdata$>flightdata$> pixmap$getColormap(), 0, 0, 0, 0, 500, 500)flightdata$> buffer <- gdkPixbufSaveToBufferv(plot_pixbuf, "png", character(0),flightdata$>flightdata$> return(0)flightdata$> $BODY$flightdata-> LANGUAGE plr VOLATILE;ERROR: permission denied for language plrflightdata=> set role=dbaflightdata-> ;SETflightdata=# CREATE OR REPLACE FUNCTION text01.test01()flightdata-# RETURNS character[] ASflightdata-# $BODY$flightdata$# version : HAWQ 1.2.1.0flightdata$# library(cairoDevice)flightdata$# library(RGtk2)flightdata$# pixmap <- gdkPixmapNew(w=500, h=500, depth=24)flightdata$# gdkDrawableSetColormap(pixmap, gdkColormapGetSystem())flightdata$# asCairoDevice(pixmap)flightdata$# plot(c(1:10))flightdata$# plot_pixbuf <- gdkPixbufGetFromDrawable(NULL, pixmap,fl
Sign in Pricing Blog Support Search GitHub This repository Watch 88 Star 644 Fork 133 2ndQuadrant/repmgr Code Issues 8 Pull requests 4 Projects 0 Pulse Graphs New issue Why repmgr role needs superuser privileges ? #74 Closed gp4git opened this Issue Jun 9, 2015 · 9 comments Projects None yet Labels None yet Milestone No milestone Assignees No one assigned 3 participants gp4git commented Jun 9, 2015 Can you detail for which features postgresql role needs supeuuser privs ? For security reasons i would like to constrain it to the minimum necessary. Thanks in advance for any reply. martinmarques commented Jun 9, 2015 It needs to read sensitive information from pg_settings which only a super user can. More precisely, these tuples need to be read: data_directory, config_file, hba_file, ident_file and stats_temp_directory The information is needed for cloning, so it knows which files to rsync (if they happen to be outside pgdata). Regards, gp4git commented Jun 10, 2015 Thanks for following up. But there are more reasons as I first encounter the problem when I try to register the master (i.e. repmgr master register) using a postgresql user with only replication privilege => [ERROR] unable to create the function repmgr_update_last_updated: ERROR: permission denied for language c That triggers another question : why installing these functions by default if we do not use repmgrd ? Regards martinmarques commented Jun 10, 2015 I don't understand your question. What specifically do you want repmgr to do for you? There are many tasks that repmgr does which require superuser privileges, although some could be circumvented. Regards, gp4git commented Jun 11, 2015 I wanted to know if with repmgr release 3 it was still necessary to give superuser privilege to repmgr user as for starter I ONLY want to use plain repmgr features (cloning and switchover) BUT NOT repmgrd features (failover and monitoring). Hope this clears the issue. And concerning my previous comment (default install of repmgr_funcs when you don't use repmgrd), I will open another issue. Anyway, best regards for your feedback. martinmarques commented Jun 12, 2015 Well, as I said before, you need superuser privileges for cloning. Regards, martinmarques closed this Jun 12, 2015 gp4git commented Jun 12, 2015 But you wrote cloning in rsync context. But I will always use pg_basebackup not rsync. Regards martinmarques commented Jun 12, 2015 I did not say that. ;) I said that repmgr needs to run this query during the cloning process, which on