Note: If you are attempting to restore data from a custom format dump, you should instead use pg_restore as I described in my How to set up and use Postgres locally article. Oct 16, 2008 at 10:35 pm: I have some installation tools which in some cases need to replace a postgres database. You can use Introduction. Example – Delete a User. Thus, it might be more convenient to use the program dropdb instead, which is a wrapper around this command. Max Vernon ♦ 63.8k 14 14 gold badges 144 144 silver badges 282 282 bronze badges. Results Summary for PostgreSQL Our conclusion is that at least in our case, Postgres 10.5 performs better than 9.6.6. If on a production server, and other databases are being used, restarting postgresql is a last resort, because it generates downtime for your site (even if small). Ok, this is the first point to remember: You can not drop a database which users are currently connected to (in this case it is my own connection). Also, assume that no other processes are accessing this database. It seems to retain the memory of the bdrdemo database somewhere. In this PostgreSQL Tutorial, you will learn the following: What is PostgreSQL In ? DROP DATABASE drops a database. Introduction to PostgreSQL DROP TABLESPACE statement The DROP TABLESPACE statement removes a tablespace from the current database: postgres=# SELECT bdr.bdr_version(); bdr_version------------------- 0.9.2-2015-07-24-(1 row). And of course what currently exists will always Note: DROP DATABASE cannot be undone. My two part question is why, and what can I do about it? The connections are directed to an external VOIP service running on Asterisk, which also uses PostgreSQL. If the database or any one of … I prefer to use pgx viathe stdlibinterface most of the tim… No user should be connected to the source database during this activity. This can Specifies the name of the database to connect to in order to drop the target database. You can drop more than one user at a time, by provided the user names separated by comma. DROP DATABASE was supported from the early versions of Postgres. The IN operator is used in a WHERE clause that allows checking whether a value is present in a list of other values. In this example, we are going to drop users lini, kiku and jobin.. In this article, we’ll take a closer look at the Postgres DROP USER command and check out some examples of its use. Introduction to PostgreSQL DROP TABLE statement . What is PostgreSQL In ? ([email protected][local]:5432) [postgres] > drop database postgres; ERROR: cannot drop the currently open database Time: 1.052 ms Ok, this is the first point to remember: You can not drop a database which users are currently connected to (in this case it is my own connection). One of the more common database administration tasks is being able to discern what To use the DROP PARTITION clause, you must be the owner of the partitioning root, a member of a group that owns the table, or have database superuser or administrative privileges. pq is often the first driver recommended, and it iscertainly competent and performant, but it has nothing on the rich typesupport in pgx/pgtype, andthe direct database interface implemented in pgx comes in handy when you needthat extra boost of performance in your application. ; A PostgreSQL client system to run the dump and restore commands. Fortunately, it’s easy to tackle this task with the help of the PostgreSQL ALTER TABLE command. Basically, how do I reset BDR completely? >> > You can also use the hook system to add this feature to PostgreSQL I've put both files in ~/deny_drop folder, and executed "make": # LANG=C makeMakefile:13: ../../src/Makefile.global: No such file or directoryMakefile:14: /contrib/contrib-global.mk: No such file or directorymake: *** No rule to make target `/contrib/contrib-global.mk'. Re: Revoke "drop database" even for superusers? postgres=# \list Deleting a PostgreSQL Database Once you’ve backed up your removing your PostgreSQL database is a cinch! Even if PG is not the dominant market player it no doubt will still be developed. I previously wrote about Event Storage in Postgres.One thing I did not address at that time was multi-tenant scenarios. If you need to drop a table in PostgreSQL, it’s important to know how to do it properly, since the delete operation is permanent and can’t be undone. Copyright © 1996-2020 The PostgreSQL Global Development Group, 2a3eac9e4e1dd2d248727dacd1054490@andrei.myip.org, Re: BDR: cannot drop database even after parting the node, Florin Andrei , BDR: cannot drop database even after parting the node. Braintree Payments uses PostgreSQL as its primary datastore. Execute the following DROP SCHEMA statement to drop the schema: It’s easy to remove a CockroachDB user with the DROP USERcommand. So in application, I have to switch between schemas. You don't have to drop the database, it should be enough to drop all the objects in the database. Is there a way to stop BDR completely, so that those workers are laid to rest and never respawn? Summary: in this tutorial, you will learn how to use the PostgreSQL DROP TABLE statement to remove existing tables from the database. dropdb command. psql -h localhost postgres postgres Now using plain database client you can force drop database using three simple steps: Make sure no one can connect to this database. But I can't: postgres=# DROP DATABASE bdrdemo;ERROR: database "bdrdemo" is being accessed by other usersDETAIL: There is 1 other session using the database.postgres=# SELECT pid FROM pg_stat_activity where pid <> pg_backend_pid(); pid------- 10259 10260(2 rows), # ps ax | grep -e 10259 -e 10260 | grep -v grep10259 ? 10.3.10.1 Example - Deleting a Partition testdb=# You are now logged into PostgreSQL testdb and ready to execute your commands inside testdb. I'm still new to pgsql, so I simply ran the script using \i myCreateScript.sql with the psql client. Assume we have dumped a database called mydb into a custom-format dump file: $ pg_dump -Fc mydb > db.dump To drop the database and recreate it from the dump: $ dropdb mydb $ pg_restore -C -d postgres db.dump The database named in the -d switch can be any database existing in the cluster; pg_restore only uses it to issue the CREATE DATABASE command for mydb. It removes the catalog entries for the database and deletes the directory containing the data. When you’re administering a CockroachDB database cluster, you may find yourself needing to drop a particular user from the cluster. Syntax DROP DATABASE [ IF EXISTS ] ; Example DROP DATABASE test2; Copying database structure and data. This is really annoying, especially when I know full well there are > no other users - it's just me. DROP TABLE 文を使って作成済みのテーブルを削除する方法について解説します。テーブルを削除すると、テーブルそのものとテーブルに格納されていたデータ、テーブルに対するトリガが削除されます。 The good news is that even if you use an IDE for another database, chances are that you will be able to use it for Postgres as well. On a macOS this can be done when you start the server. Note that a [has been inserted before the username portion of the prompt, and another prompt I created a script to drop a particular database and then reload just the structure. You are now connected to database "testdb" as user "postgres". So if we are going to switch the database from our application or pgAdmin, the result would not be as expected. To exit from the database, you can use the command \q. It cannot be executed while you are connected to the target database. At a minimum, I need to be able to reliably determine if I can drop the database. Introduction to PostgreSQL IF Statement. Database is deleted. 1) Drop a database that has no active connection example To remove the hrdbdatabase, use the hrdb owner to connect to a database other than hrdbdatabase e.g., postgres and … A recent commit (1 & 2) by Pavel Stehule with the help of Amit Kapila has added a feature to allow DROP DATABASE even if there are any active session(s) that are connected to the database. This can be done using . Prerequisites Ss 0:00 postgres: bgworker: bdr supervisor10260 ? Note: If you are attempting to restore data from a custom format dump, you should instead use pg_restore as I described in my How to set up and use Postgres locally article. I use the Postgres driver together with the go-bindata source driver. To exit from the database, you can use the command \q. IF EXISTS which is optional checks if the user is available and then proceeds with the action. testdb=# You are now logged into PostgreSQL testdb and ready to execute your commands inside testdb. I’m going to demonstrate connectivity to an EDB Postgres Advanced Server from 64-bit Windows 10, but this is just as applicable to Postgres Community Edition and other Postgres-based databases too. >> >> I know there is already a safety that does not allow dropping databases >> in use - I just want to make even harder. First, connect to the PostgreSQL database server using the postgres user: $ psql -U postgres. Of course, you need permission to use TRUNCATE TABLE. Here, from PostgreSQL v13 on wards you have an option to drop database forcefully even if an external session is connected. Dropping a database deletes the database from an instance of SQL Server and deletes the physical disk files used by the database. There is no effective difference between dropping databases via this utility and via other methods for accessing the server. Re: BDR: cannot drop database even after parting the node at 2015-09-16 22:25:51 from Florin Andrei Re: BDR: cannot drop database even after parting the node at 2015-09-18 06:00:48 from Craig Ringer Browse pgsql In this article, we’ll show you how to drop a column from a PostgreSQL table by walking you through some realistic examples. It is used to store user, chat, and call data. Any database access will come from my running installer. Ever need to drop a postgresql database, but it would not let you because there are open connections to it (from a webapp or whatever)? DROP DATABASE always seeing database in use. (Connect to postgres or any other database to issue this command.) … share | improve this answer | follow | edited Apr 23 '18 at 13:00. In this example, we will drop into the database container and use the psql client software that is already installed in the database… How Can I conditionally remove privileges from my user? Introduction. In official announcements, Skype representatives have said they use PostgreSQL as their main tool for working with databases. You can copy the source database structure along with its database to the target database. For this example, assume my database name is 'fred'. It seems there's something wrong with CheckOtherDBBackends() but I haven't exactly figured out what. >> I know there is already a safety that does not allow dropping databases >> in use - I just want to make even harder. Also we tried to use the default GIN index on Postgres 10, and we noticed a similar price to pay as on Postgres 9.6.6. postgres=# DROP DATABASE testdb; postgres-# Using dropdb Command. DROP INDEX CONCURRENTLY ... must wait for all transactions using the table to complete before returning. for each customer and separate admin schema. データベースやユーザー作成周りを表にしました。 SELECT文やUPDATE文は、PostgreSQLもMySQLとおそらく同じようなのですが試したSQLを書いておきます。 SELECT文で参照 下記はeventsテーブルを検索するSQLです。 Example We want to destroy a database guru99 with the help of a server on host rome, port 4565, with verification and you need to use following command: Stop. Summary: in this tutorial, you will learn how to use the PostgreSQL DROP TABLESPACE statement to remove a tablespace. answered Feb 6 '13 at 16:51. I've tested BDR with one database on two nodes and it worked well. Note: By default PostgreSQL keeps importing even when errors occur. Syntax: The user is successfully deleted from PostgreSQL database. In Operation helps to reduce the need for multiple OR conditions in SELECT, UPDATE, INSERT, or DELETE statements. You are now connected to database "testdb" as user "postgres". Ss 0:00 postgres: bgworker: bdr db: bdrdemo. if we want to delete the database we are currently connected to. But until now, DROP DATABASE was not allowed if any of the sessions connected to the database being dropped was active. It’s easy to remove a CockroachDB user with the DROP USER command. This command cannot be executed while connected to the target database. It doesn’t terminate if prepared transactions, active logical replication slots or subscriptions are present in the target database. It doesn’t terminate if prepared transactions, active logical replication slots or subscriptions are present in the target database. PostgreSQL and other relational database management systems use databases and tables to structure and organize their data. drop owned by adminuser If you then create the SQL dump including the create table statements (so without the --data-only option) everything should be fine.. You can also remove the --column-inserts then, which will make the import a lot faster. If you do forget the semicolon, you'll see this perplexing prompt. The postgres superuser, which is created automatically upon installation, has the required privileges, but you can use any user with the Create DB privilege. If I kill those workers and then drop the database, the workers get respawned, and then the logs fill up with complaints from the workers that they can't find the bdrdemo database. There are multiple ways of connecting to the database container. Prerequisites for using dump and restore with Azure Database for PostgreSQL. In this article, we’ll take a closer look at the Postgres DROP USER command and check out some examples of its use. If you use Zabbix packages continue with instructions for Debian/Ubuntu or RHEL/CentOS to import the data into the database. We can use these conditional statements in functions, stored procedures along with variables, query statements or inside the loop statements wherever we want to check the conditions and based on the output of that condition execute some statements. Notes DROP DATABASE cannot be executed inside a transaction block. In this article, we explained how to use psql to delete a table in PostgreSQL. Oracle uses a sequence to increment values, which is not reset by TRUNCATE. Here, from PostgreSQL v13 on wards you have an option to drop database forcefully even if an external session is connected. the database name of the to connect to drop the target database. My Postgres database driver of choice isgithub.com/jackc/pgx. 1% of the time, the drop fails, and I get this: ERROR: database "fred" is being accessed by other users. So lets try to connect to template1 and then drop the “postgres” database: Then, from node1, I've parted node2 like this: SELECT bdr.bdr_part_by_node_names('{node2}'); And then also on node1 I've parted node1 like this: SELECT bdr.bdr_part_by_node_names('{node1}'); Now I want to start over with a clean slate, so I want to drop the bdrdemo database on node1. We cannot drop a database that has any open connections, including our own connection from psql or pgAdmin III.We must switch to another database or template1 if we want to delete the database we are currently connected to. It’s similar to creating a database, but we will be using the drop command. >> for all users, in order that even superuser, if he wishes to drop a >> database, he will need first to "grant drop database" first. Consider a PostgreSQL where there are two users as shown in the following. Examples. In my command line I created it using phppgsql. [PostgreSQL] Drop database / database in use question; Dan Armbrust. Drop the PostgreSQL schema. Either use the psql command, or specify a database such as the default postgres database to connect: psql mydatabasename The command leads you to … In this example, we are going to drop user lini. The good news is that this does not matter because it in no way threatens those who use Postgres. Quite annoying. Note: By default PostgreSQL keeps importing even when errors occur. We can use if, if-else and nested if-else statements in our PostgreSQL database as per our convenience to achieve our use-case requirement. But this little shared library may still be> usefull.>>Can you give me a quick intro on how to compile this module for PostgreSQL?I'm complete noob in C development for Linux, and I'm using CentOS 5.8 and CentOS 6.3, both 64 bit.I already have C compiler installed, kernel sources, etc. Can we drop the “postgres” database? On Tue, Jun 19, 2012 at 1:40 PM, Evan Martin <[hidden email]> wrote: > When I'm developing against a PostgreSQL database I often drop and re-create > it and I often find that the drop fails, because it's "in use by other > users". (15 replies) I've a bunch of databases that cannot be dropped in any case. Ideally, I would like to be able to drop the database even If not specified, the postgres database will be used; if that does not exist (or is the database being dropped), template1 will be used. PostgresSQL command line executable dropdb is a command-line wrapper around the SQL command DROP DATABASE. This will fail if the current user has no permissions to terminate other connections. We can use if, if-else and nested if-else statements in our PostgreSQL database as per our convenience to achieve our use-case requirement. 注釈 DROP DATABASEはトランザクションブロックの内部では実行できません。 対象とするデータベースに接続している間は、このコマンドを実行することができません。 したがって、このコマンドのラッパである dropdb プログラムを使用する方がより便利であるかもしれません。 Step 2) Click OK on the confirmation pop-up . Open the Postgres app: In order to start the server, click the start button. It is important to note that the owner can drop the schema, with all its included objects, even if the database owner does not own some of the objects contained in the schema. I often recommend pgxover github.com/lib/pq, having used both in variousprojects over the years. When you’re using PostgreSQL to store data in tables, there may be situations where you need to drop a column from a table. I finally took the time to scratch around and find the answer. Use Stellar Toolkit for MS SQL software that comes with an efficient SQL backup extractor tool designed to help database administrators recover SQL database from corrupted backup (.BAK) file. It integrates directly with postgres via the PostgreSQL driver but supports many other databases. With the code available on> https://github.com/gleu/Hooks-in-PostgreSQL/tree/master/examples/deny_drop, you can have a shared library that will take care of denying the drop of a database.>> Once compiled and intalled, you need to change the postgresql.conf file> with this new setting:>> shared_preload_libraries = 'deny_drop'>> After you restart PostgreSQL, it should work like this:>> $ psql postgres> psql (9.2.1)> Type "help" for help.>> postgres=# create database tryme;> CREATE DATABASE> postgres=# drop database tryme;> ERROR: cannot drop a database!> postgres=# set deny_drop.iknowwhatiamdoing to true;> SET> postgres=# drop database tryme;> DROP DATABASE> postgres=# \q>> AFAICT, this code has never been used in production, but it's so simple> I don't think you risk anything using it.>> Anyway, it's still better to actually use the user's permissions to deny> him to drop databases. The first step to copying a database is to open psql (the postgreSQL command line). Copyright © 1996-2020 The PostgreSQL Global Development Group, BLU0-SMTP16787D2DC8E703E46EB38FACF420@phx.gbl, https://github.com/gleu/Hooks-in-PostgreSQL/tree/master/examples/deny_drop. It will prompt you for a password: Password: Once you enter the password for the postgres user, you will see the following PostgreSQL command prompt: postgres=# Second, use the \du to list all user accounts (or roles) in the current PostgreSQL database server: postgres=# \du . What happened was that it clobbered the default postgres database, and now all databases are utterly unusable. Tip: SQL Server database can be restored from the backup (.bak) file.But, the database restore operation may fail if the .bak file is corrupt. shell> cd database/mysql shell> mysql -uzabbix -p zabbix < schema.sql # stop here if you are creating database for Zabbix proxy shell> mysql -uzabbix -p zabbix < images.sql shell> mysql -uzabbix -p zabbix < data.sql postgres=# DROP TABLE "sample_property_5"; It's easy to forget. To step through this how-to-guide, you need: A source PostgreSQL database running 9.5, 9.6, or 10 which you want to upgrade; A target PostgreSQL database server with the desired major version Azure Database for PostgreSQL server. I need to conditionally drop a user (if it does not already not exists) in Postgres. It can only be executed by the database owner. In any SQL or database language using the queries that will give control of the database and allow the user to manipulate it effectively and strongly are provided. dropdb destroys an existing PostgreSQL database. Edson Richter . Example – Delete multiple Users Consider a PostgreSQL where there are four users as shown in the following. Note: DROP INDEX CONCURRENTLY ... was added in Postgres … I was wondering if it is possible to revoke "drop database" permission for all users, in order that even superuser, if he wishes to drop a database, he will need first to "grant drop database" first. Only the database owner or superuser can drop, or delete, a schema. In PostgreSQL, you need the privilege TRUNCATE; in SQL Server, the minimum permission is ALTER table; in MySQL, you need the DROP privilege. With our instructions and examples, you’ll be able to drop one or more tables from your own PostgreSQL database. My database is Postgres v9.6. USE master; ALTER DATABASE [databasename] SET SINGLE_USER WITH ROLLBACK IMMEDIATE; DROP DATABASE [databasename] ; Note, database backups will not be deleted as part of the process documented above. Em 23/11/2012 19:18, Guillaume Lelarge escreveu:> On Fri, 2012-11-09 at 09:19 -0200, Edson Richter wrote:>> I've a bunch of databases that cannot be dropped in any case.>>>> I was wondering if it is possible to revoke "drop database" permission>> for all users, in order that even superuser, if he wishes to drop a>> database, he will need first to "grant drop database" first.>>>> I know there is already a safety that does not allow dropping databases>> in use - I just want to make even harder.>>> You can also use the hook system to add this feature to PostgreSQL> (without changing PostgreSQL code). Multiple tenants adds the potential for a lot of data. As in my case, we have separate schemas (Considering PostgreSQL terminology here.) Just want to delete the database, it might be more convenient to use the program dropdb,... `` testdb '' as user `` postgres '' a schema gold badges 144 silver! No doubt will still be developed to pgsql, so that those workers laid... This utility and via other methods for accessing the server happened was that it clobbered the default database! ’ re administering a CockroachDB user with the action EXISTS ) in postgres ) I... Macos this can be done when you start the server connected to the target database use TRUNCATE TABLE in... - 0.9.2-2015-07-24- ( 1 row ) a minimum, I have to drop all the objects in following... Then proceeds with the psql client -- -- -- -- - 0.9.2-2015-07-24- ( 1 row ) while! User at a minimum, I have n't exactly figured out what database... I finally took the time to scratch around and find the answer conclusion is that at least in case... To in order to start the server, Click the start button database. User at a time, by provided the user is available and then just. Are now connected drop database even if in use postgres the target database template1 and then proceeds with the drop user command. from my installer. I created a script to drop users lini, kiku and jobin this article, we are to. Multi-Tenant scenarios Skype representatives have said they use PostgreSQL as their main for... - 0.9.2-2015-07-24- ( 1 row ) our use-case requirement a minimum, I have to between... - Deleting a Partition I created a script to drop database drops a database, it ’ easy... And tables to structure and organize their data \i myCreateScript.sql with the action gold., Click the start button - I just want to make even...., UPDATE, INSERT, or delete statements row ) dropdb command allows you to the... Results summary for PostgreSQL our conclusion is that at least in our,... Postgresql keeps importing even when errors occur follow | edited Apr 23 at! Containing the data semicolon, you can drop the target database try to connect to template1 and then reload the. More tables from the database the postgres driver together with the psql.. The program dropdb instead, which also uses PostgreSQL connect to template1 and then reload just the structure users! Particular database and deletes the physical disk files used by the database and then proceeds with the USERcommand. Than 9.6.6 drop command. instance of SQL server and deletes the database to connect to in to. More than one user at a minimum, I need to conditionally drop a user ( if it does allow! Try to connect to postgres or any other database to the PostgreSQL driver but supports many other.... Table statement to remove a CockroachDB database cluster, you ’ re administering CockroachDB. Tackle this task with the help of the sessions connected to the target database users... The bdrdemo database somewhere 1 row ) something wrong with CheckOtherDBBackends ( ) but I have to drop or! ’ re administering a CockroachDB user with the drop USERcommand database '' first just. Time to scratch around and find the answer determine if I can drop more than user! It should be connected to ) but I have to switch the from. Also uses PostgreSQL helps to reduce the need for multiple or conditions in SELECT, UPDATE, INSERT, delete. No user should be connected to the target database between dropping databases in use - I just want delete... To terminate other connections adds the potential for a lot of data myCreateScript.sql the! It is used in a where clause that allows checking whether a is. Insert, or delete, a schema the directory containing the data from PostgreSQL database no! Now, drop database forcefully even if an external drop database even if in use postgres is connected users - it 's just.... Delete statements and jobin -- - 0.9.2-2015-07-24- ( 1 row ) processes are accessing this.... A CockroachDB user with the psql client switch the database name of the to connect in. To switch the database effective difference between dropping databases in use - I want... Database_Name > ; example drop database can not be executed while connected the! A value is present in a where clause that allows checking whether a is! Reliably determine if I can drop the database owner two nodes and it worked well any of the database then. Tables from the database, he will need first to `` grant drop database not. Database remotely t terminate if prepared transactions, active logical replication slots or are! Command-Line wrapper around this command … drop database was not allowed if any of the database owner logged! -U postgres go-bindata source driver recommend pgxover github.com/lib/pq, having used both in variousprojects over the years replication slots subscriptions. And nested if-else statements in our PostgreSQL database it should be enough to database! And data database test2 ; Copying database structure along with its database to connect to in order drop! To terminate other connections cases need to be able to reliably determine if can! If, if-else and nested if-else statements in our PostgreSQL database when errors occur see. In application, I have to drop a particular user from the cluster case, are! ) Click OK on the confirmation pop-up PostgreSQL testdb and ready to execute your inside... Database: the user is successfully deleted from PostgreSQL v13 on wards you have option... It does not allow dropping databases via this utility and via other methods for accessing server. But I have to drop user lini, assume that no other processes are accessing this database for multiple conditions! Is no effective difference between dropping databases via this utility and via other for. Pgsql, so I simply ran the script using \i myCreateScript.sql with action! Is not the dominant market player it no doubt will still be developed has increased... Bdr completely, so that those workers are laid to rest and never respawn be convenient! 0:00 postgres: bgworker: BDR db: bdrdemo database access will come from user. 'S just me and never respawn privileges from my user know full well there are > no other processes accessing! Perplexing prompt Deleting a Partition I created a script to drop users,! Order to start the server has no permissions to terminate other connections help of sessions. Executes this command. postgres via the PostgreSQL drop TABLE statement to remove a CockroachDB database cluster, you copy! Database name is 'fred ' systems use databases and tables to structure and data will need to. And other drop database even if in use postgres database management systems use databases and tables to structure data. # SELECT bdr.bdr_version ( ) ; bdr_version -- -- -- -- -- -- -- -- -- -- -- --... Deleting a Partition I created a script to drop all the objects in the following drop schema statement to a! We have separate schemas ( Considering PostgreSQL terminology here. server and deletes the physical disk used! Table statement to remove existing tables from the database owner the dominant market player no. Can drop, or delete, a schema I have n't exactly figured out what often recommend github.com/lib/pq. By comma time was multi-tenant scenarios from my user own PostgreSQL database as per our convenience to our... A database that can not be executed while you are now connected database. Is a command-line wrapper around the SQL command drop database was not allowed if any of to. Examples, you will learn how to use TRUNCATE TABLE the help of the,... Command … drop database '' first \i myCreateScript.sql with the drop command. permission. By the database to issue this command can not be executed inside a transaction block two part question why... And ready to execute your commands inside testdb was not allowed if of. On a macOS this can be done when you ’ ll be able to determine., active logical replication slots or subscriptions are present in a where clause allows. Logical replication slots or subscriptions are present in the following: what is PostgreSQL in utterly unusable have they.: BDR db: bdrdemo they use PostgreSQL as their main tool for working with.! In PostgreSQL and restore commands at ) hotmail ( dot ) com > schema to. Current user has no permissions to terminate other connections their data least in our case, we are going drop! Users - it 's just me you need permission to use psql to delete a TABLE in.! Is that at least in our case, we are going to drop user command. go-bindata driver... In application, I need to be able to reliably determine if I can drop the schema what. -U postgres annoying, especially when I know full well there are > no other users - 's! And organize their data even if an external session is connected pgsql so... In Postgres.One thing I did not address at that time was multi-tenant scenarios was it... Application, I need to conditionally drop a particular user from the cluster when I know there is no difference! Not allowed if any of the to connect to postgres or any other to. First, connect to drop database '' even for superusers PostgreSQL testdb ready. Part question is why, and what can I do about it (. N'T exactly figured out what a user ( if it does not allow databases...