Postgres get oid of database. routines table and the information_schema.

pg_namespace Columns. Is there a way to get the oid of the return type when selecting from a function? SELECT reltuples::bigint AS estimate FROM pg_class WHERE oid = 'myschema. Below, when we mean all of these kinds of objects we Table 9. 25. oid ) t > > > > Or, in other words, given table pgbench_accounts, how do I get > tablespace OID, > > database OID and relfilenode so that I can use this info to > filter output of pg_waldump? > > The tablespace OID is 1663, since "base" is the default tablespace > "pg_default". track is set to top) queryid bigint. The simple way to get it: cast to the object identifier type regnamespace while connected to the same DB. relname as table_name. oid = _tbl; That is guaranteed to work. 同时OID也是系统内部的一个数据类型，用4个字节的无符号整数表示。. x or earlier, it's possible that some of your tables were created with these OIDs. I'm currently running 9. In this case, it returns the string 10, which references the OID in the pg_authid catalog. table_name = c. 2. --username=username. lator. dialects. The sequence name has nothing to with the primary key - although primary key columns are very often defined with a default value taken from a sequence to make them an "auto-increment" column (e. Within this database, all tables for which pg_class . – 53. The purpose of the question is to ask if there is a canonical solution for apps that use the pre-v12 OID. atttypmod) AS data_type FROM pg_catalog. answered Oct 7, 2020 at 15:39. \d <type_name> show the column definition of the given user-defined type. i = index. database server's port. The actual file data is stored somewhere outside the database table by Postgres. where relhasoids. These numbers were taken from a 4 byte unsigned counter that wrapped around after 2^32 (although PostgreSQL avoided duplicate Object Identifier Types. routines table and the information_schema. Apr 16, 2012 · CREATE OR REPLACE FUNCTION get_lo_size(oid) RETURNS bigint VOLATILE STRICT LANGUAGE 'plpgsql' AS $$ DECLARE fd integer; sz bigint; BEGIN -- Open the LO; N. Mar 20, 2022 · For more information, see the PostgreSQL 12 release notes. 在PostgreSQL中，对象标识符Object identifiers (OIDs) 用来在整个数据集簇中唯一的标识一个数据库对象，这个对象可以是数据库、表、索引、视图、元组、类型等等。. database oid (references pg_database. Replace 'myschema. size::float / (SELECT size FROM db) * 100 as relative_size. pg_get_serial_sequence returns the name of the sequence associated with a column, or NULL if no sequence is associated with the column. Next we need to connect to the relevant database and see the state of the tables themselves. \dl list large objects, same as \lo_list. Statistics Functions. Type oid represents an object identifier. dat file that contains its initial data in an editable format. from pg_database. oid) OID of database in which the statement was executed. relname as TableName, c. oid WHERE c. Jul 31, 2009 · To provide a straight bit of SQL, you can list the primary key columns and their types with: AND tc. Nov 29, 2015 · So try searching for the relfilenode: select name, relkind from pg_class where relfilenode = 12741; The relkind column tells you what type of object the file represents: r = ordinary table. parameters tables. As a side note, psql has some helpers. Nov 7, 2018 · select oid as database_id, datname as database_name, datallowconn as allow_connect, datconnlimit as connection_limit from pg_database order by oid; Columns. size) as absolute_size, schemas. Large binary objects are stored indirecty with OID columns in Postgres. table_schema, st. The CTE is for tracking recursive view dependencies and can be reused for all such requirements; the only difference will be in the main query. Consider you have a table created which has 2 columns column1 and column2 and you want column1 to be returned after every insert. Many built-in PostgreSQL functions accept the OID of a table, or another kind of database object, and for convenience are declared as taking regclass (or the appropriate OID alias type). typname AS return_type ,d. You should use an identity column of type bigint called oid, and your program will keep working like before. Finding a database by oid. 0, but this just accelerated my upgrade plans. oid oid. roleid FROM cte JOIN pg_auth_members m ON m. After all the problem turned to be trival. 62. Copy. toplevel bool. For example, you can use an OID to get data from pg_proc and pg_class as shown below: Feb 6, 2014 · The function current_database() returns the name of the current database: SELECT current_database(); It's an SQL function, so you must call it as part of an SQL statement. mytable'::regclass; Faster, simpler, safer, more elegant. SELECT * FROM information_schema. This means you do not have to look up the object's OID by hand, but can just enter its name as a string literal. #. Column Type. True if the query was executed as a top-level statement (always true if pg_stat_statements. it needs to be in a transaction otherwise it will close immediately. oid JOIN pg_description d on p. Dec 19, 2023 · PostgreSQL is pronounced Post-Gres-Q-L. base. Row identifier. Example: Example: psql -Atq -f reset. Hash code to identify identical OID介绍. NOTE: this is a plain \d, and describes the type in a similar fashion to a table. postgresql. oid = 42; answered May 3, 2017 at 20:15. 24. To get a prettier listing of types use psql 's \dT * command. column_name, pgd. -U username--username=username. -p port--port=port. Jun 18, 2024 · method sqlalchemy. Jan 3, 2017 · 4,817 1 31 25. The catalog pg_class describes tables and other objects that have columns or are otherwise similar to a table. language plpgsql stable; select * from describe_all_objects(); This should cover every object in the database, right down to the implicit table array types and the columns on the TOAST table indexes, as well as server-wide objects like databases and users, so you'll likely want to filter this down quite a bit. where oid = 16396. atttypid, pg_attribute. relhasoids. select c. Oct 12, 2023 · Creating a PostgreSQL user for your Managed Identity. pg_class JOIN pg_catalog. Before you ask, I did replace 'mytable' with the correct table name. Apr 3, 2023 · We can refer to Replication Between PostgreSQL Versions Using Logical Replication on upgrading using a logical replication method. 2 for more information. Simply recreating function and trigger (causing them to get current OID) resolved the problem. 12. Databases are created with the CREATE DATABASE command. Type oidrepresents an object identifier. SELECT constraint_name, table_name, column_name, ordinal_position FROM information_schema. See Section 27. PostgreSQL doesn't support running functions as standalone queries, and has no CALL statement like some other SQL engines, so you just use SELECT to call a function. database_id - databalase id, unique within an instance of PostgreSQL; database_name - database name; allow_connect - indicate if anybody can connect to database; connection_limit - shows 73. pg_statio_all_tables as st. Because oids where assigned to every data row by default, and were only four-bytes in size, they were increasingly seen as unnecessary. select nsp. format_type(pg_attribute. 19. My solution is to log in to the postgres db using psql with the -E option as follows: psql -E -U username -d database In psql, run the following commands to see the sql that postgres uses to generate May 3, 2013 · Types for available but not installed extensions are not listed. oid) OID of the relation targeted by the lock, or null if the target is not a relation or part of a relation. But, pg_largeobject table is having three columns (. A composite type is automatically created for each table in the database, to represent the row structure of the table. Unlike most system catalogs, pg_database is shared across all databases of a cluster: there is only one copy of pg_database per cluster, not Object Identifier Types. 33. It is not a good idea to use the oid as permanent reference to a table. oid), or if the name is given as public then the privileges of the PUBLIC pseudo-role are checked. Somehow that function was using OID of table that was removed. ) PostgreSQL is an object-relational database system that has the features of traditional proprietary database systems with enhancements to be found in next-generation DBMS systems. (Then cast to oid , text or bigint to display the numeric value. SELECT pg_attribute. FROM pg_database d. user name to connect as. User can initiate streaming replication and put the system in and out of backup mode. Feel Sep 6, 2014 · Make sure you locate any backups of either the database or its file tree and keep them safe. For earlier versions, I don't see a way of doing this directly. They permit you to seek inside of them. 26 shows an overview. Jul 20, 2020 · Here is a simple way of getting all constraints of a table in PostgreSQL. \lo_import FILE [COMMENT] \lo_list. The catalog pg_database stores information about the available databases. Usually you build systems on top of them, like Raster support in PostGIS. relnamespace = ns. pg_attribute INNER JOIN pg_catalog. There's no way to list types provided by extensions not installed in the current database. When querying a set returning function, oid is null. (See Section 5. ├──────────┤. join pg_database on objoid = pg_database. mytable') in Postgres 9. PGInspector. . pronamespace WHERE n. One of the functions was depending on table that some time ago was removed & recreated. This is simply a publicly readable view of pg_shadow that blanks out the password field. attname AS column_name, pg_catalog. 28. where tbl. format_type returns the SQL name of a data type that is identified by its type OID and possibly a type modifier. Each . 561 GET >HINT: Stop the postmaster and use a standalone backend to vacuum that database. Then connect to that database. If you want database-wide uniqueness, that is something that the recently removed oid s did not provide. from pg_namespace nsp. │ regclass │. Large objects are kind of esoteric. you can use this syntax. mytable'::regclass with to_regclass('myschema. Data File Format #. Table 51. There are also several alias types for oid: regproc, regprocedure, regoper, regoperator, regclass, regtype, regrole, regnamespace, regconfig, and regdictionary. SET aad_validate_oids_in_tenant = off; Jul 4, 2018 · Postgres has an inbuilt mechanism for the same, which in the same query returns the id or whatever you want the query to return. Pass NULL for the type modifier if no specific modifier is known. oid = d. There are also several alias types for oid, each named regsomething. views; SELECT viewname FROM pg_views; Dec 7, 2021 · 5. Assume, that the application cannot be changed, so any solution must be entirely implemented within the Sep 2, 2018 · The OID can be found in the system catalog pg_namespace. 32. That is exactly what i needed. -U username. This is stored in pg_class. prorettype = t. pg_namespace AS ns ON c. You can see the underlying SQL this executes by running psql with the -E flag: $ psql -E regress. That gives schema of all tables in that database. ) In these functions, the user whose privileges are being inquired about can be specified by name or by OID (pg_authid. A namespace is the structure underlying SQL schemas: each namespace can have a separate collection of relations, types, etc. oid. rolname ,D. Here's a nice shortcut for getting the name of the table from the table id (you can also query the pg_class table): => select 17720::regclass; ┌──────────┐. Aug 29, 2022 · This query would get you information about the coderpad database, like the database owner. and not in program files. Mar 2, 2020 · Note that table_name_id_seq is the name of a sequence (which provides a default value for that colum) - not the name of the primary key. 4+ to get nothing instead of an exception for invalid table names. └──────────┘. Aug 26, 2020 · pg_size_pretty(schemas. oid ) SELECT oid, oid::regrole::text AS rolename FROM cte; -- oid & name If you don't give any of -o, -f or -t, but do give -d, it will list all tables in the database named by -d. This query will get you table comment for the given table name: select description from pg_description. See CREATE ROLE. ): So, how it started, DB started throwing errors about "database with OID 1" 2014-02-07 22:54:46. Nov 3, 2020 · @Bruno Ranschaert: True - fixed that. tableoid #. (or whatever your database’s oid is). attrelid INNER JOIN pg_catalog. relname; How to use (from postgres wiki): Save this to a file, say 'reset. Object Identifiers (oids) were added to Postgres as a way to uniquely identify database objects, e. pg_namespace. \lo_export LOBOID FILE. 3+, assumes that ` FROM pg_matviews ` works. Object Identifier Types. OID的分配由系统中的 PostgreSQL function-OID: 'my OID' where 'my' is the currently executing user-defined-function 5 Why does a PostgreSQL SELECT query return different results when a schema name is specified? 53. his 2 scripts, will give you the exact directory/file (s) you need: SELECT oid from pg_database WHERE datname = <database_name>; Nov 21, 2019 · When using node-postgres to query a Postgres database, a successful query returns the pg. jpeg's into an old column which isn't what I need. See: And, this can show all user-defined and system views in the current database in detail: \dvS+. It is now safe to start fiddling Now, start the database server again and dump tables one at a time. I have a table called tblA and its having two columns. -o takes an OID, -f takes a filenode, and -t takes a table name (actually, it's a LIKE pattern, so you Oct 5, 2017 · I think I'll submit a patch proposing to move it, generate_relation_name and get_relation_name to lsyscache. oid = pg_attribute. without name conflicts. pg_class. Presently, accesses to tables and indexes in both disk-block and individual-row terms are counted. and relnamespace <> 'pg_catalog'::regnamespace; answered Dec 7, 2021 at 9:27. 1. All I see is how to insert . c and make them public. pg_class AS c JOIN pg_catalog. \dT <type_name> show given user-defined type, without details. userid oid (references pg_authid. pg_matviews. (1 row) Jun 23, 2011 · From the SQL-standard schema information_schema present in every database/catalog, use the defined view named character_sets. -p port. You need to deactivate the virus scanner for the PostgreSQL data directory. -o takes an OID, -f takes a filenode, and -t takes a table name (actually, it's a LIKE pattern, so You need to join pg_namespace to pg_class. The catalog pg_namespace stores namespaces. Share. This column is particularly handy for queries that select from partitioned tables (see Section 5. To use this function, you must have CONNECT privilege on the specified database (which is granted by default) or have privileges of the pg_read_all_stats role. Aug 28, 2012 · Here is a complete sample query using pg_get_functiondef: WITH funcs AS ( SELECT n. In this blog, we will upgrade PG10, which has tables with OID columns and some extensions to PG13, as an example, using the native pg_upgrade utility. --port=port. Jan 4, 2014 · You can query the system catalog with a recursive query, in particular pg_auth_members:. oid) OID of user who executed the statement. 4 or higher. Data Types. member = cte. To display specific tables, select which tables to show by using -o, -f and/or -t. Solution is: update answers set answer_value = lo_get(cast(value as bigint)) Note - the lo_get function appears to be present in Postgres 9. rows, tables, functions, etc. If you want to see the entire database structure in one go, type \d * in the psql console. 11. objoid JOIN pg_namespace n on n. Mar 14, 2018 · SELECT nspname FROM pg_catalog. A slight change to one of the other answers which only gives you columns that have comments on them, this gives you all columns whether they have a comment or not. An OID(Object identifier) is a unique number (primary key) given to the database objects like functions, procedures, triggers, event triggers, tables, views, etc. In addition to the functions listed in this section, there are a number of functions related to the statistics system that also provide system information. oid) AS table_size FROM pg_catalog. identity or serial columns). (For those curious about how to say "PostgreSQL", an audio file is available. Here's the database table: This work with database owned by group role: SELECT U. pg_get_keywords returns a set of records describing the SQL keywords recognized by the server. ORDER BY S. 7 for more information about privileges. First, connect to any database on that PostgreSQL instance and run: select datname. rolname AS "Owner". In this mode, the -S and -i options control what gets listed. This approach should be portable across all standard database systems. sql -o temp. Although OID can be used as an identity (auto-increment) primary key column, it is recommended to use SERIAL data type instead. For example, tblA having 1 entries. When I run this on my postgres server, I get an empty result set. oid = tbl. c = composite type. v = view. SELECT schema_name, relname, pg_size_pretty(table_size) AS size, table_size FROM ( SELECT pg_catalog. To get the coderpad owner who initially created the database, you’d use this query: SELECT a. datname FROM pg_roles AS U JOIN pg_database AS D ON (D. oid) The default tablespace for the database. page int4 This will show you the schema name, table name, size pretty and size (needed for sort). This will give you the database name. Laurenz Albe. But neither does the answer with most upvotes. regress=> \dT *. 2\data\base\. Each catalog that has any manually-created initial data (some do not) has a corresponding . For instance: Apr 2, 2024 · PostgreSQL OID (Object Identifier) は、PostgreSQLデータベース内のすべてのオブジェクトを一意に識別するための番号です。テーブル、列、インデックス、関数など、あらゆるデータベースオブジェクトに OID が割り当てられます。 Nov 25, 2013 · A version that supports finding the column names and types of a table in a specific schema, and uses JOINs without any subqueries. They're thankfully nowhere near exhaustion, but you'd also see that here if the age was near 2. After some searching, I was able to find the information_schema. So you should not use oid s to permanently store references to system objects. from pg_catalog. datname = current_database(); Using pg_authid (as I did in my previous version) instead of pg_roles is limited to SuperUser because it holds password (see documentation): Oct 14, 2020 · 1. We need the GROUP BY because a view may depend on an object in more than one ways: in our example, v2 depends on t1 twice: once directly, and once indirectly via v1. description ,pg_get_functiondef(p. table_name AND ccu. Database File Layout #. Also a major upgrade, be it with dump/restore or pg_upgrade, will change the oid s. I don't see any other answer in this thread covering that scenario. oid) as definition FROM pg_proc p JOIN pg_type t on p. nspname AS schema_name, relname, pg_relation_size(pg_catalog. A different template can be specified by writing TEMPLATE name. description. pg_indexes_size ( regclass) → bigint Feb 3, 2015 · Thanks goes to a_horse_with_no_name. join pg_class tbl on nsp. Use of this parameter is deprecated as of PostgreSQL 12. pg_user Columns. Feb 13, 2014 at 10:10. character_sets ; Despite the name being plural, it shows only a single row, reporting on the current database/catalog. With psql: \dT show list of user-defined types. The view pg_user provides access to information about database users. The first input parameter is a table name with optional schema, and the second parameter is May 19, 2017 · lo. dbid oid (references pg_database. Stop the PostgreSQL server and take a file backup of the entire database tree (base, global, pg_xlog - everything at that level). However, I had to use pg_catalog. 8. WITH RECURSIVE cte AS ( SELECT oid FROM pg_roles WHERE rolname = 'maxwell' UNION ALL SELECT m. But the acual question is not "how to use blob/bytea/lobs", but "how to store large file or data in database" (as written in the question) - the answer is: large files don't belong into the database - and I mean neither as bytea nor as blob. If your Confluence instance previously ran on PostgreSQL 8. Consult Chapter 21 for details about the meaning of some of the parameters. It is part of Postgres's object-relational heritage. dattablespace oid (references pg_tablespace. user330315. Sep 20, 2013 · My guess is, that you have mixed up OID and BYTEA style blobs. FROM schemas; The accepted answer solves the described problem, but the suggested query is not efficient. 11) or inheritance hierarchies (see Section 5. Computes the total disk space used by the database with the specified name or OID. Parameters: table_name¶ – string name of the table. By default, the new database will be created by cloning the standard system database template1. CREATE DATABASE creates a new PostgreSQL database. pg_namespace ON relnamespace = pg_catalog. Using those, one can construct a query for this purpose. Aug 25, 2010 · A "relation" is a table and a "tuple" is a row. reltablespace is zero will be stored in this tablespace; in particular, all the non-shared system catalogs will be there. The oid type is currently implemented as an unsigned four-byte integer. May 28, 2015 · Furthermore, the answer relevant to Postgres 9. t = TOAST table. 1 billion. spcname name. get_table_oid (table_name: str, schema: str | None = None) → int ¶ Return the OID for the given table name. column_name = c. Unlike most system catalogs, pg_tablespace is shared across all databases of a cluster: there is only one copy of pg_tablespace per cluster, not one per database. picmate's answer is right. relation oid (references pg_class. views and pg_proc as shown below: SELECT table_name FROM information_schema. If you don't give any of -o, -f or -t, but do give -d, it will list all tables in the database named by -d. 3. We have PostgreSQL 10 running with the below list of extensions Mar 10, 2014 · I would like to know How can I insert an image "bytea" into a table of my postgreSql database? I've been searching forums for hours and have seen the same question posted dozens of times, but yet to find a single answer. oid) WHERE D. Now, connect as the Microsoft Entra administrator user to your PostgreSQL database, and run the following SQL statements, replacing CLIENT_ID with the client ID you retrieved for your system-assigned managed identity: SQL. pg_stat_slru. 今回は、PostgreSQL の内部情報を調べるときに役立つ、 regclass や regnamespace などの OID 別名型 を紹介します。. pg_database_size ( oid) → bigint. To create a database, you must be a superuser or have the special CREATEDB privilege. 11. In writing a function to test if a column col_name exists in a table _tbl, I'd like to extract the table's schema name, which is passed into the function as a regclass parameter (for security??). Traditionally, the configuration and data files used by a database cluster are stored together within the cluster's data directory, commonly referred to as PGDATA (after the name of the environment variable that can be used to define it). \dT+ <type_name> show given user-defined type, with details. Table 8. Feb 27, 2013 · 4. I'm not an expert in Postgres, so it might be that I'm missing something obvious, but none of the existing answers worked for me out of the box. oid) OID of the database in which the lock target exists, or zero if the target is a shared object, or null if the target is a transaction ID. pg_class ON pg_class. – Devi. In pg_largeobject table, there are three entries against loid 1001 (3 page nos) which is fine. Before upgrading your database we recommend you check your database tables for OIDs, and remove them if present. See the manual on Object Identifier Types. B. sql'. The same applies to the ref* types, which are OIDs under the hood. Object identifiers (OIDs) are used internally by PostgreSQLas primary keys for various system tables. dat file contains Perl data structure literals that are simply eval'd to produce an in-memory data structure consisting of an array of hash references, one 9. For special quoting, use quoted_name. In the mean time I suggest shameless ripping off what generate_relation_name or generate_qualified_relation_name does if you're doing something where get_rel_name isn't good enough. Result type that has a oid property. If you don't give -d either, it will show a listing of database OIDs. The column just contains an object identifier that is associated internally with the blob. Mar 19, 2013 · You can use the function pg_get_constraintdef(constraint_oid) in a query like the following:. This section describes the storage format at the level of files and directories. System Information Functions. Run the file and save its output in a way that doesn't include the usual headers, then run that output. 56. pg_class. If you see anything in the documentation that is not correct, does not match your experience Feb 13, 2020 · The only thing that you should keep in mind is that the OIDs that PostgreSQL uses internally to identify objects like tables are subject to change during an upgrade or restore from a dump. g. System Catalog Information Functions. 10), since without it, it's difficult to tell which individual table a row came from. Jun 13, 2012 · What Are Oids. key_column_usage WHERE table_name = '<your_table_name>'; edited Oct 5, 2023 at 10:17. Sep 13, 2016 · You can use the following query to find the size of your largest databases (taken from here ): You probably need to run it as the db administrator. pg_tablespace Columns. SELECT conrelid::regclass AS table_from , conname , pg_get_constraintdef(oid) FROM pg_constraint WHERE contype IN ('f', 'p ') AND connamespace = 'public'::regnamespace -- your schema here ORDER BY conrelid::regclass::text, contype DESC; Are you using Greenplum or Postgres? In Postgres you can just use pg_get_serial_sequence. Update: patch submitted. Oct 7, 2020 · 4. OIDs are not added to user-created tables, unless WITH OIDS is specified when the table is created, or the default_with_oids configuration variable is enabled. Table 53. 561 GET >ERROR: database is not accepting commands to avoid wraparound data loss in database with OID 1 2014-02-07 22:54:46. Jun 27, 2024 · Use of this parameter is deprecated as of PostgreSQL 12. on windows the main DB folder location is (at least on my installation) C:\PostgreSQL\9. here is an example. May 30, 2021 · So I get that, in the absence of a system generated OID, I probably need to create a user column, called OID defined as a sequence. where datname = '<database name>'. it takes the ID and the name of the database from the pg_databse. So to get all tables created with OIDs you can use something like: select relnamespace::regnamespace::text as table_schema, relname as table_name. Table 54. │ my_table │. I read about oids and bytea, both are different data types and being used in that way. rm temp. $$. Jan 23, 2017 · 9. PostgreSQL では、テーブルやスキーマなど、すべてのオブジェクトには OID と呼ばれる識別子が割り振られていて、システムカタログと呼ばれる内部 Jan 31, 2019 · Here you can see both the default postgres database and the user's database are the most immediate concern to getting close to emergency vacuum. nspname AS schema ,proname AS sproc_name ,proargnames AS arg_names ,t. datdba = U. column_name. S = sequence. from pg_class. 68 lists functions that allow querying object access privileges programmatically. oid = p. For a fixed-size type, typlen is the number of bytes in the internal representation of the type. pg_type Columns. It is also possible to create composite types with CREATE TYPE AS. nspname as schema_name, tbl. Description. schema¶ – string schema name; if omitted, uses the default schema of the database OID is auto-incrementing integer value, unique within a PostgreSQL database (not just a table) that can be automatically assigned to each row of a table created WITH OIDS option. 75. The OID of the table containing this row. This includes indexes (but see also pg_index ), sequences (but see also pg_sequence ), views, materialized views, composite types, and TOAST tables; see relkind. While the oid never changes during the life time of a database, it will be different after a restore from a pg_dump. The total number of rows in each table, and information about vacuum and Jul 16, 2012 · To get the comment on the database, use the following query: select description from pg_shdescription. Object identifiers (OIDs) are used internally by PostgreSQL as primary keys for various system tables. And, you can show all user-defined and system views in the current database with information_schema. psql -f temp. pg_namespace ON end. You can find the docs here. Table 9-51 shows several functions that extract session and system information. OID is auto-incrementing integer value, unique within a PostgreSQL database (not just a table) that can be automatically assigned to each row of a table created WITH OIDS option. nspname View Name Description; pg_stat_activity: One row per server process, showing database OID, database name, process ID, user OID, user name, application name, client's address, host name (if available), and port number, times at which the server process, current transaction, and current query began execution, process's waiting status, and text of the current query. 4. Tables can be placed in particular tablespaces to aid administration of disk layout. pg_namespace. PostgreSQL 's cumulative statistics system supports collection and reporting of information about server activity. relnamespace. Alternatively you can give -s to get a tablespace listing. qs lx jl qr zl gm uc oo yr ib