Postgres-failed to remove extension - postgresql

I'm trying to remove to extensions from the postgres 10 database-pg_stat_statements and pg_stat_kcache. I've been trying to use both:
DROP EXTENSION pg_stat_kcache;
DROP EXTENSION pg_stat_statements CASCADE;
but both of those attempts fail with the error:
my_db=# drop extension pg_stat_statements CASCADE;
ERROR: extension "pg_stat_statements" does not exist
my_db=# drop extension pg_stat_kcache ;
ERROR: extension "pg_stat_kcache" does not exist
Yet still extensions exists while using \dx command:
my_db=# \dx
List of installed extensions
Name | Version | Schema | Description
--------------------+---------+------------+------------------------------
pg_stat_kcache | 2.1.3 | public |
pg_stat_statements | 1.6 | public |
plpgsql | 1.0 | pg_catalog | PL/pgSQL procedural language
(3 rows)
Those extensions seems to be empty:
my_db=# \dx+
Objects in extension "pg_stat_kcache"
Object description
--------------------
(0 rows)
Objects in extension "pg_stat_statements"
Object description
--------------------
(0 rows)
How can I remove those extensions-those missing extensions cause that when I'm trying to perform pg_dumpall it fails on those missing extensions:
could not find referenced extension 16403
could not find referenced extension 16403
could not find referenced extension 16403
could not find referenced extension 16403
could not find referenced extension 16403
could not find referenced extension 16403
could not find referenced extension 16403
could not find referenced extension 16403
could not find referenced extension 16403
could not find referenced extension 16403
could not find referenced extension 16414
could not find referenced extension 16414
could not find referenced extension 16414
could not find referenced extension 16421
could not find referenced extension 16421
could not find referenced extension 16421
could not find referenced extension 16421
pg_dump: failed sanity check, parent table with OID 16417 of pg_rewrite entry with OID 16420 not found
pg_dumpall: pg_dump failed on database "my_db", exiting

Related

PostgreSQL cannot generate uuid but uuid-ossp extension is installed?

postgresql11-server-11.8_2
When I try to add a new client in idempiere I get the following error message:
idempiere Version=7.1.0.202008290007
Initial Client Setup Process
Do you want to start the Process?
** org.postgresql.util.PSQLException: ERROR: function uuid_generate_v4() does not exist Hint: No function matches the given name and argument types. You might need to add explicit type casts. Where: PL/pgSQL function generate_uuid() line 3 at RETURN
This usually indicates that the uuid extension is missing from the database. But this is not the case.
[root#accounting-2 ~ (master)]# sudo -u postgres psql --dbname=idempiere
psql (11.8)
Type "help" for help.
idempiere=# \dx
List of installed extensions
Name | Version | Schema | Description
-----------+---------+------------+-------------------------------------------------
plpgsql | 1.0 | pg_catalog | PL/pgSQL procedural language
uuid-ossp | 1.1 | public | generate universally unique identifiers (UUIDs)
What is causing this? How is it fixed?
The output of \dx in my postgres looks like this:
plpgsql | 1.0 | pg_catalog | PL/pgSQL procedural language
uuid-ossp | 1.1 | adempiere | generate universally unique identifiers (UUIDs)
In your case it shows uuid-ossp installed in the public schema, while in my case is installed in adempiere schema.
Please try the following command in your idempiere database:
CREATE EXTENSION "uuid-ossp"

Timescale: ERROR: tried calling catalog_get when extension isn't loaded

I'm using Timescale and today I faced on a problem:
I`m creating a simple table with any of bellow ways:
1-
> create table if not exists "NewTable" as (select * from "OldTable");
SELECT 6
2-
create table "NewTable" ("eventTime" timestamptz, name varchar);
after the table successfully created. I write \d and the result for both tables are same:
Column | Type | Collation | Nullable | Default
-----------+--------------------------+-----------+----------+---------
eventTime | timestamp with time zone | | |
name | character varying | | |
but the problem starts here...
> SELECT create_hypertable('"NewTable"', '"eventTime"' ,migrate_data => true);
ERROR: tried calling catalog_get when extension isn't loaded
so after I googled my issue I found nothing usefull insted of everyone told to create timescaledb extention that I had it before
> CREATE EXTENSION timescaledb CASCADE; //OR CREATE IF NOT EXISTS EXTENSION timescaledb CASCADE;
ERROR: extension "timescaledb" has already been loaded with another version
and
> \dx
Name | Version | Schema | Description
-------------+---------+------------+--------------------------------------------------------
plpgsql | 1.0 | pg_catalog | PL/pgSQL procedural language
timescaledb | 1.5.1 | public | Enables scalable inserts and complex queries for time-series data
so what should I do?
Question : why this happened? how should I create a hyper table now?
before these operations, I tried to take a dump from my database and before that, I have 20 main_hyper_tables.
why this happened?
I guess TimescaleDB was installed in the standard way through apt. Since new version of TimescaleDB (v.1.6) was released recently, apt automatically updated installation and copied the binary of 1.6 into the shared library of PostgreSQL installation. Thus new extension version was loaded, which is different from the extension used to create the database (v.1.5.1).
how should I create a hyper table now?
I see two options:
Load the extension version used to create the database, by explicitly specifying in the postgres config.
Update the extension to the latest version by
ALTER EXTENSION timescaledb UPDATE
See using ALTER EXTENSION section in Update TimescaleDB doc

How to use extensions in Postgres installed with Homebrew on Mac OSX

I'd like to use the SPI extension in Postgres 10.2, which I installed with Homebrew. However,
CREATE EXTENSION spi;
fails with
ERROR: could not open extension control file "/usr/local/share/postgresql/extension/spi.control": No such file or directory
Looking inside that extension directory, I see many extensions, but not SPI. The Postgres documentation mentions that extensions would reside in a contrib directory of the distribution and that you can then build them individually, but I can't seem to find this directory anywhere. Any idea how I can obtain and install the SPI module?
https://www.postgresql.org/docs/current/static/contrib-spi.html
Each of the groups of functions described below is provided as a
separately-installable extension.
so you check and try:
t=# select * from pg_available_extensions where name in ('refint','timetravel','autoinc','insert_username','moddatetime');
name | default_version | installed_version | comment
-----------------+-----------------+-------------------+-------------------------------------------------------------
moddatetime | 1.0 | | functions for tracking last modification time
autoinc | 1.0 | | functions for autoincrementing fields
insert_username | 1.0 | | functions for tracking who changed a table
timetravel | 1.0 | | functions for implementing time travel
refint | 1.0 | | functions for implementing referential integrity (obsolete)
(5 rows)
t=# create extension refint ;
CREATE EXTENSION
t=# create extension timetravel;
CREATE EXTENSION
and so on...

AWS RDS PostgreSQL 9.5.4 Extension postgis_tiger_geocoder Missing Soundex?

I am attempting to install the AWS "Approved" PostgreSql Extension on our on large RDS instance but every time I at the point I attempt to 'create extension postgis_tiger_geocoder' I get this:
SQL Error [42883]: ERROR: function soundex(character varying) does not exist
I have spent a good bit of time reading the AWS / postgis / postgresql forums but unfortunately haven't found the writing on the wall.
Steps Taken
Installed the POSTGIS extension
create EXTENSION postgis;
Installed the FuzzyStrMatch Extension which contains the soundex function (verified)
create EXTENSION fuzzystrmatch;
Finally when I run this create extension I get the error above
create extension postgis_tiger_geocoder;
SQL Error [42883]: ERROR: function soundex(character varying) does not exist
Hint: No function matches the given name and argument types. You might need to add explicit type casts.
Position: 57558
org.postgresql.util.PSQLException: ERROR: function soundex(character varying) does not exist
Hint: No function matches the given name and argument types. You might need to add explicit type casts.
Position: 57558
Things I have tried:
set search_path = <schema_name>, public
Followed here:
Installing PostgreSQL Extension to all schemas
Dug deeply into postgis installation documentation
Read through RDS documentation on adding Extensions...
If anyone has had to deal with this frustration on AWS I will happily swap a few of the remaining hairs left on my head as I have not been able to work around this.
Results of \dx+
Objects in extension "fuzzystrmatch"
Object Description
--------------------------------------------------------------------------------
function <schema>.difference(...)
function <schema>.dmetaphone_alt(...)
function <schema>.dmetaphone(...)
function <schema>.levenshtein_less_equal(...)
function <schema>.levenshtein_less_equal(...)
function <schema>.levenshtein(...)
function <schema>.levenshtein(...)
function <schema>.metaphone(...)
function <schema>.soundex(...)
function <schema>.text_soundex(...)
(10 rows)
Results of \dfS+ soundex
List of functions
Schema | Name | Result data type | Argument data types | Type | Volatility | Owner | Security | Access privileges | Language | Source code | Description
--------+------+------------------+---------------------+------+------------+-------+----------+-------------------+----------+-------------+-------------
(0 rows)
Had the same problem, resolved it by altering search_path for database and reconnect before creating extension postgis_tiger_geocoder. Look for the FIX part :
-- Postgis Installation
------------------------------------------------------------------------------------------------------------------------------------------------
-- PostGIS AWS Configuration --
-- https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Appendix.PostgreSQL.CommonDBATasks.html#Appendix.PostgreSQL.CommonDBATasks.PostGIS --
------------------------------------------------------------------------------------------------------------------------------------------------
-- On postgis schema
SET SCHEMA '${POSTGIS_SCHEMA_NAME}';
-- Step 2: Load the PostGIS Extensions
create extension postgis;
create extension fuzzystrmatch;
-- FIX : To avoid "ERROR: function soundex(character varying) does not exist", change schema and reconnect
ALTER DATABASE ${DATABASE_NAME} SET search_path=${POSTGIS_SCHEMA_NAME};
\connect ${DATABASE_NAME};
-- End FIX
create extension postgis_tiger_geocoder;
create extension postgis_topology;
-- Step 3: Transfer Ownership of the Extensions to the rds_superuser Role
alter schema tiger owner to ${MASTER_USER};
alter schema tiger_data owner to ${MASTER_USER};
alter schema topology owner to ${MASTER_USER};
-- Step 4: Transfer Ownership of the Objects to the rds_superuser Role
CREATE FUNCTION exec(text) returns text language plpgsql volatile AS $f$ BEGIN EXECUTE $1; RETURN $1; END; $f$;
SELECT exec('ALTER TABLE ' || quote_ident(s.nspname) || '.' || quote_ident(s.relname) || ' OWNER TO ${MASTER_USER};')
FROM (
SELECT nspname, relname
FROM pg_class c JOIN pg_namespace n ON (c.relnamespace = n.oid)
WHERE nspname in ('tiger','topology') AND
relkind IN ('r','S','v') ORDER BY relkind = 'S')
s;
-- Adding postgis to default schema
ALTER DATABASE ${DATABASE_NAME} SET search_path=${SCHEMA_NAME},${POSTGIS_SCHEMA_NAME};
Had the same problem. Turns out that all the fuzzystrmatch's functions were created inside the wrong schema.
Connected with psql command line, I used the drop extension command to restart the process of creating the extensions:
drop extension postgis_topology;
drop extension postgis;
drop extension fuzzystrmatch;
Then, just to be sure, disconnected using \q.
Connected psql again.
Set the schema to public:
set schema 'public';
Then, follow the process described in AWS RDS Docs
create extension postgis;
create extension fuzzystrmatch;
create extension postgis_tiger_geocoder;
create extension postgis_topology;

Extension exists but uuid_generate_v4 fails

At amazon ec2 RDS Postgresql:
=> SHOW rds.extensions;
rds.extensions
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
btree_gin,btree_gist,chkpass,citext,cube,dblink,dict_int,dict_xsyn,earthdistance,fuzzystrmatch,hstore,intagg,intarray,isn,ltree,pgcrypto,pgrowlocks,pg_trgm,plperl,plpgsql,pltcl,postgis,postgis_tiger_geocoder,postgis_topology,sslinfo,tablefunc,tsearch2,unaccent,uuid-ossp
(1 row)
As you can see, uuid-ossp extension does exist. However, when I'm calling the function for generation uuid_v4, it fails:
CREATE TABLE my_table (
id uuid DEFAULT uuid_generate_v4() NOT NULL,
name character varying(32) NOT NULL,
);
What's wrong with this?
The extension is available but not installed in this database.
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
If the extension is already there but you don't see the uuid_generate_v4() function when you do a describe functions \df command then all you need to do is drop the extension and re-add it so that the functions are also added. Here is the issue replication:
db=# \df
List of functions
Schema | Name | Result data type | Argument data types | Type
--------+------+------------------+---------------------+------
(0 rows)
CREATE EXTENSION "uuid-ossp";
ERROR: extension "uuid-ossp" already exists
DROP EXTENSION "uuid-ossp";
CREATE EXTENSION "uuid-ossp";
db=# \df
List of functions
Schema | Name | Result data type | Argument data types | Type
--------+--------------------+------------------+---------------------------+--------
public | uuid_generate_v1 | uuid | | normal
public | uuid_generate_v1mc | uuid | | normal
public | uuid_generate_v3 | uuid | namespace uuid, name text | normal
public | uuid_generate_v4 | uuid | | normal
db=# select uuid_generate_v4();
uuid_generate_v4
--------------------------------------
b19d597c-8f54-41ba-ba73-02299c1adf92
(1 row)
What probably happened is that the extension was originally added to the cluster at some point in the past and then you probably created a new database within that cluster afterward. If that was the case then the new database will only be "aware" of the extension but it will not have the uuid functions added which happens when you add the extension. Therefore you must re-add it.
Looks like the extension is not installed in the particular database you require it.
You should connect to this particular database with
\CONNECT my_database
Then install the extension in this database
CREATE EXTENSION "uuid-ossp";
Step #1: re-install uuid-ossp extention into the exact schema:
If this is a fresh installation you can skip SET and DROP. Credits to #atomCode (details)
SET search_path TO public;
DROP EXTENSION IF EXISTS "uuid-ossp";
CREATE EXTENSION "uuid-ossp" SCHEMA public;
After this, you should see uuid_generate_v4() function IN THE RIGHT SCHEMA (when execute \df query in psql command-line prompt).
Step #2: use fully-qualified names (with schemaname. qualifier):
For example:
CREATE TABLE public.my_table (
id uuid DEFAULT public.uuid_generate_v4() NOT NULL,
If you've changed the search_path, specify the public schema in the function call:
public.uuid_generate_v4()
This worked for me.
create extension IF NOT EXISTS "uuid-ossp" schema pg_catalog version "1.1";
make sure the extension should by on pg_catalog and not in your schema...
Just add this code to the Beginning of your script
DROP EXTENSION IF EXISTS "uuid-ossp";
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
Maybe It was the same I was facing. The uuid_generate_v4 was from the public schema and I was trying to run it in a specific schema, so to fix it I did:
SET search_path TO specific_schema;
INSERTO INTO my_table VALUES public.uuid_generate_v4();
You can check the schema where your function is running:
\df uuid_generate_v4
Or
SELECT n.nspname, p.probin, p.proname
FROM
pg_proc p
LEFT JOIN pg_namespace n ON p.pronamespace = n.oid
WHERE p.proname like 'uuid_generate_v4';
You can check info related to the extension of the uuid-ossp like this:
SELECT * FROM pg_extension WHERE extname LIKE 'uuid-ossp';
You can add this extension case you don't have it already:
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
if you do it from unix command (apart from PGAdmin) dont forget to pass the DB as a parameter. otherwise this extension will not be enabled when executing requests on this DB
psql -d -c "create EXTENSION pgcrypto;"
in my case were 3 steps. Create the database, connect to the database and create the extension. The important step is the second one, "connect to the database", and you can notice the line without ";" cause is a command and not a SQL sentence.
CREATE DATABASE database_name_here;
\connect database_name_here
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";