PostgreSQL
© 1996–2019 The PostgreSQL Global Development Group
Licensed under the PostgreSQL License.
https://www.postgresql.org/docs/12/reference.html
| Name | PostgreSQL |
| Version | |
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| Last Updated | 2020-01-15T16:27:33Z |
Table of Contents
-
Appendix: Additional Supplied Modules
- adminpack
- amcheck
- auth_delay
- auto_explain
- bloom
- btree_gin
- btree_gist
- citext
- cube
- dict_int
- dict_xsyn
- earthdistance
- file_fdw
- fuzzystrmatch
- hstore
- intagg
- intarray
- isn
- lo
- ltree
- pageinspect
- passwordcheck
- pgcrypto
- pgrowlocks
- pgstattuple
- pg_buffercache
- pg_freespacemap
- pg_prewarm
- pg_stat_statements
- pg_trgm
- pg_visibility
- postgres_fdw
- seg
- sepgsql
- spi
- sslinfo
- tablefunc
- tcn
- test_decoding
- tsm_system_rows
- tsm_system_time
- unaccent
- uuid-ossp
- xml2
- Appendix: Date/Time Support
- Appendix: SQL Conformance
- Appendixes
-
Applications
- clusterdb
- createdb
- createuser
- dropdb
- dropuser
- ecpg
- initdb
- pgbench
- pg_archivecleanup
- pg_basebackup
- pg_checksums
- pg_config
- pg_controldata
- pg_ctl
- pg_dump
- pg_dumpall
- pg_isready
- pg_receivewal
- pg_recvlogical
- pg_resetwal
- pg_restore
- pg_rewind
- pg_test_fsync
- pg_test_timing
- pg_upgrade
- pg_waldump
- postgres
- postmaster
- psql
- reindexdb
- vacuumdb
- B-Tree Indexes
- Backup and Restore
-
Client Authentication
- Authentication Methods
- Authentication Problems
- BSD Authentication
- Certificate Authentication
- GSSAPI Authentication
- Ident Authentication
- LDAP Authentication
- PAM Authentication
- Password Authentication
- Peer Authentication
- pg_hba.conf File
- RADIUS Authentication
- SSPI Authentication
- Trust Authentication
- User Name Maps
-
Commands
- ABORT
- ALTER AGGREGATE
- ALTER COLLATION
- ALTER CONVERSION
- ALTER DATABASE
- ALTER DEFAULT PRIVILEGES
- ALTER DOMAIN
- ALTER EVENT TRIGGER
- ALTER EXTENSION
- ALTER FOREIGN DATA WRAPPER
- ALTER FOREIGN TABLE
- ALTER FUNCTION
- ALTER GROUP
- ALTER INDEX
- ALTER LANGUAGE
- ALTER LARGE OBJECT
- ALTER MATERIALIZED VIEW
- ALTER OPERATOR
- ALTER OPERATOR CLASS
- ALTER OPERATOR FAMILY
- ALTER POLICY
- ALTER PROCEDURE
- ALTER PUBLICATION
- ALTER ROLE
- ALTER ROUTINE
- ALTER RULE
- ALTER SCHEMA
- ALTER SEQUENCE
- ALTER SERVER
- ALTER STATISTICS
- ALTER SUBSCRIPTION
- ALTER SYSTEM
- ALTER TABLE
- ALTER TABLESPACE
- ALTER TEXT SEARCH CONFIGURATION
- ALTER TEXT SEARCH DICTIONARY
- ALTER TEXT SEARCH PARSER
- ALTER TEXT SEARCH TEMPLATE
- ALTER TRIGGER
- ALTER TYPE
- ALTER USER
- ALTER USER MAPPING
- ALTER VIEW
- ANALYZE
- BEGIN
- CALL
- CHECKPOINT
- CLOSE
- CLUSTER
- COMMENT
- COMMIT
- COMMIT PREPARED
- COPY
- CREATE ACCESS METHOD
- CREATE AGGREGATE
- CREATE CAST
- CREATE COLLATION
- CREATE CONVERSION
- CREATE DATABASE
- CREATE DOMAIN
- CREATE EVENT TRIGGER
- CREATE EXTENSION
- CREATE FOREIGN DATA WRAPPER
- CREATE FOREIGN TABLE
- CREATE FUNCTION
- CREATE GROUP
- CREATE INDEX
- CREATE LANGUAGE
- CREATE MATERIALIZED VIEW
- CREATE OPERATOR
- CREATE OPERATOR CLASS
- CREATE OPERATOR FAMILY
- CREATE POLICY
- CREATE PROCEDURE
- CREATE PUBLICATION
- CREATE ROLE
- CREATE RULE
- CREATE SCHEMA
- CREATE SEQUENCE
- CREATE SERVER
- CREATE STATISTICS
- CREATE SUBSCRIPTION
- CREATE TABLE
- CREATE TABLE AS
- CREATE TABLESPACE
- CREATE TEXT SEARCH CONFIGURATION
- CREATE TEXT SEARCH DICTIONARY
- CREATE TEXT SEARCH PARSER
- CREATE TEXT SEARCH TEMPLATE
- CREATE TRANSFORM
- CREATE TRIGGER
- CREATE TYPE
- CREATE USER
- CREATE USER MAPPING
- CREATE VIEW
- DEALLOCATE
- DECLARE
- DELETE
- DISCARD
- DO
- DROP ACCESS METHOD
- DROP AGGREGATE
- DROP CAST
- DROP COLLATION
- DROP CONVERSION
- DROP DATABASE
- DROP DOMAIN
- DROP EVENT TRIGGER
- DROP EXTENSION
- DROP FOREIGN DATA WRAPPER
- DROP FOREIGN TABLE
- DROP FUNCTION
- DROP GROUP
- DROP INDEX
- DROP LANGUAGE
- DROP MATERIALIZED VIEW
- DROP OPERATOR
- DROP OPERATOR CLASS
- DROP OPERATOR FAMILY
- DROP OWNED
- DROP POLICY
- DROP PROCEDURE
- DROP PUBLICATION
- DROP ROLE
- DROP ROUTINE
- DROP RULE
- DROP SCHEMA
- DROP SEQUENCE
- DROP SERVER
- DROP STATISTICS
- DROP SUBSCRIPTION
- DROP TABLE
- DROP TABLESPACE
- DROP TEXT SEARCH CONFIGURATION
- DROP TEXT SEARCH DICTIONARY
- DROP TEXT SEARCH PARSER
- DROP TEXT SEARCH TEMPLATE
- DROP TRANSFORM
- DROP TRIGGER
- DROP TYPE
- DROP USER
- DROP USER MAPPING
- DROP VIEW
- END
- EXECUTE
- EXPLAIN
- FETCH
- GRANT
- IMPORT FOREIGN SCHEMA
- INSERT
- LISTEN
- LOAD
- LOCK
- MOVE
- NOTIFY
- PREPARE
- PREPARE TRANSACTION
- REASSIGN OWNED
- REFRESH MATERIALIZED VIEW
- REINDEX
- RELEASE SAVEPOINT
- RESET
- REVOKE
- ROLLBACK
- ROLLBACK PREPARED
- ROLLBACK TO SAVEPOINT
- SAVEPOINT
- SECURITY LABEL
- SELECT
- SELECT ... DISTINCT
- SELECT ... EXCEPT
- SELECT ... FROM
- SELECT ... GROUP BY
- SELECT ... HAVING
- SELECT ... INTERSECT
- SELECT ... LIMIT
- SELECT ... ORDER BY
- SELECT ... UNION
- SELECT ... WHERE
- SELECT ... WINDOW
- SELECT ... WITH
- SELECT INTO
- SET
- SET CONSTRAINTS
- SET ROLE
- SET SESSION AUTHORIZATION
- SET TRANSACTION
- SHOW
- START TRANSACTION
- TRUNCATE
- UNLISTEN
- UPDATE
- VACUUM
- VALUES
-
Concurrency Control
- Caveats
- Concurrency Control
- Data Consistency Checks at the Application Level
- Explicit Locking
- Explicit Locking: Advisory Locks
- Explicit Locking: Deadlocks
- Explicit Locking: Page-Level Locks
- Explicit Locking: Row-Level Locks
- Explicit Locking: Table-Level Locks
- Locking and Indexes
- Transaction Isolation
- Transaction Isolation: Read Committed Isolation Level
- Transaction Isolation: Repeatable Read Isolation Level
- Transaction Isolation: Serializable Isolation Level
-
Data Definition
- Constraints
- Constraints: Check Constraints
- Constraints: Exclusion Constraints
- Constraints: Foreign Keys
- Constraints: Not-Null Constraints
- Constraints: Primary Keys
- Constraints: Unique Constraints
- Default Values
- Dependency Tracking
- Foreign Data
- Generated Columns
- Inheritance
- Modifying Tables
- Modifying Tables: Adding a Column
- Modifying Tables: Adding a Constraint
- Modifying Tables: Changing a Column's Data Type
- Modifying Tables: Changing a Column's Default Value
- Modifying Tables: Removing a Column
- Modifying Tables: Removing a Constraint
- Modifying Tables: Renaming a Column
- Modifying Tables: Renaming a Table
- Privileges
- Row Security Policies
- Schemas
- Schemas: Creating a Schema
- Schemas: Public Schema
- Schemas: Schema Search Path
- Schemas: Schemas and Privileges
- Schemas: System Catalog Schema
- System Columns
- Table Basics
- Table Partitioning
- Table Partitioning: Declarative Partitioning
- Table Partitioning: Declarative Partitioning Best Practices
- Table Partitioning: Implementation Inheritance
- Table Partitioning: Partition Pruning
- Table Partitioning: Partitioning and Constraint Exclusion
- Data Manipulation
-
Data Types
- Arrays
- Binary Data Types
- Binary Data Types: bytea
- Bit String Types
- Boolean Type
- Boolean Type: boolean
- Character Types
- Character Types: "char"
- Character Types: char
- Character Types: character
- Character Types: character varying
- Character Types: name
- Character Types: text
- Character Types: varchar
- Composite Types
- Data Types: bigint
- Data Types: bigserial
- Data Types: bit
- Data Types: bit varying
- Data Types: boolean
- Data Types: box
- Data Types: bytea
- Data Types: character
- Data Types: character varying
- Data Types: cidr
- Data Types: circle
- Data Types: date
- Data Types: double precision
- Data Types: inet
- Data Types: integer
- Data Types: interval
- Data Types: json
- Data Types: jsonb
- Data Types: line
- Data Types: lseg
- Data Types: macaddr
- Data Types: macaddr8
- Data Types: money
- Data Types: numeric
- Data Types: path
- Data Types: pg_lsn
- Data Types: point
- Data Types: polygon
- Data Types: real
- Data Types: serial
- Data Types: smallint
- Data Types: smallserial
- Data Types: text
- Data Types: time
- Data Types: time with time zone
- Data Types: timestamp
- Data Types: timestamp with time zone
- Data Types: tsquery
- Data Types: tsvector
- Data Types: txid_snapshot
- Data Types: uuid
- Data Types: xml
- Date/Time Types
- Date/Time Types: date
- Date/Time Types: interval
- Date/Time Types: time
- Date/Time Types: time with time zone
- Date/Time Types: timestamp
- Date/Time Types: timestamp with time zone
- Domain Types
- Enumerated Types
- Geometric Types
- Geometric Types: box
- Geometric Types: circle
- Geometric Types: line
- Geometric Types: lseg
- Geometric Types: path
- Geometric Types: point
- Geometric Types: polygon
- JSON Types
- JSON Types: boolean
- JSON Types: null
- JSON Types: number
- JSON Types: string
- Monetary Types
- Monetary Types: money
- Network Address Types
- Network Address Types: cidr
- Network Address Types: inet
- Network Address Types: macaddr
- Network Address Types: macaddr8
- Numeric Types
- Numeric Types: bigint
- Numeric Types: bigserial
- Numeric Types: decimal
- Numeric Types: double precision
- Numeric Types: integer
- Numeric Types: numeric
- Numeric Types: real
- Numeric Types: serial
- Numeric Types: smallint
- Numeric Types: smallserial
- Object Identifier Types
- Object Identifier Types: oid
- Object Identifier Types: regclass
- Object Identifier Types: regconfig
- Object Identifier Types: regdictionary
- Object Identifier Types: regnamespace
- Object Identifier Types: regoper
- Object Identifier Types: regoperator
- Object Identifier Types: regproc
- Object Identifier Types: regprocedure
- Object Identifier Types: regrole
- Object Identifier Types: regtype
- pg_lsn Type
- Pseudo-Types
- Pseudo-Types: any
- Pseudo-Types: anyarray
- Pseudo-Types: anyelement
- Pseudo-Types: anyenum
- Pseudo-Types: anynonarray
- Pseudo-Types: anyrange
- Pseudo-Types: cstring
- Pseudo-Types: event_trigger
- Pseudo-Types: fdw_handler
- Pseudo-Types: index_am_handler
- Pseudo-Types: internal
- Pseudo-Types: language_handler
- Pseudo-Types: opaque
- Pseudo-Types: pg_ddl_command
- Pseudo-Types: record
- Pseudo-Types: trigger
- Pseudo-Types: tsm_handler
- Pseudo-Types: unknown
- Pseudo-Types: void
- Range Types
- Range Types: daterange
- Range Types: int4range
- Range Types: int8range
- Range Types: numrange
- Range Types: tsrange
- Range Types: tstzrange
- Text Search Types
- Text Search Types: tsquery
- Text Search Types: tsvector
- UUID Type
- XML Type
- Database Roles
- Frontend/Backend Protocol
-
Full Text Search
- Full Text Search
- Full Text Search: Additional Features
- Full Text Search: Configuration Example
- Full Text Search: Controlling Text Search
- Full Text Search: Dictionaries
- Full Text Search: GIN and GiST Index Types
- Full Text Search: Limitations
- Full Text Search: Parsers
- Full Text Search: psql Support
- Full Text Search: Tables and Indexes
- Full Text Search: Testing and Debugging Text Search
-
Functions and Operators
- Array Comparisons
- Array Comparisons: ALL (array)
- Array Comparisons: ANY/SOME (array)
- Array Comparisons: IN
- Array Comparisons: NOT IN
- Comparisons
- Comparisons: <
- Comparisons: <=
- Comparisons: <>
- Comparisons: =
- Comparisons: >
- Comparisons: >=
- Comparisons: BETWEEN
- Comparisons: BETWEEN SYMMETRIC
- Comparisons: IS DISTINCT FROM
- Comparisons: IS FALSE
- Comparisons: IS NOT DISTINCT FROM
- Comparisons: IS NOT FALSE
- Comparisons: IS NOT NULL
- Comparisons: IS NOT TRUE
- Comparisons: IS NOT UNKNOWN
- Comparisons: IS NULL
- Comparisons: IS TRUE
- Comparisons: IS UNKNOWN
- Comparisons: ISNULL
- Comparisons: NOT BETWEEN
- Comparisons: NOT BETWEEN SYMMETRIC
- Comparisons: NOTNULL
- Comparisons: num_nonnulls
- Comparisons: num_nulls
- Conditional Expressions
- Conditional Expressions: CASE
- Conditional Expressions: COALESCE
- Conditional Expressions: GREATEST and LEAST
- Conditional Expressions: NULLIF
- Enum Functions
- Enum Functions: enum_first
- Enum Functions: enum_last
- Enum Functions: enum_range
- Logical Operators
- Logical Operators: AND
- Logical Operators: NOT
- Logical Operators: OR
- Pattern Matching
- Pattern Matching: LIKE
- Pattern Matching: POSIX Regular Expressions
- Pattern Matching: SIMILAR TO Regular Expressions
- Sequence Functions
- Sequence Functions: currval
- Sequence Functions: lastval
- Sequence Functions: nextval
- Sequence Functions: setval
- Set Returning Functions
- Set Returning Functions: generate_series
- Set Returning Functions: generate_subscripts
- Subquery Expressions
- Subquery Expressions: ALL
- Subquery Expressions: ANY/SOME
- Subquery Expressions: EXISTS
- Subquery Expressions: IN
- Subquery Expressions: NOT IN
-
Functions: Aggregate
- Aggregate Functions
- Aggregate: array_agg
- Aggregate: avg
- Aggregate: bit_and
- Aggregate: bit_or
- Aggregate: bool_and
- Aggregate: bool_or
- Aggregate: corr
- Aggregate: count
- Aggregate: covar_pop
- Aggregate: covar_samp
- Aggregate: cume_dist WITHIN GROUP
- Aggregate: dense_rank WITHIN GROUP
- Aggregate: every
- Aggregate: GROUPING
- Aggregate: jsonb_agg
- Aggregate: jsonb_object_agg
- Aggregate: json_agg
- Aggregate: json_object_agg
- Aggregate: max
- Aggregate: min
- Aggregate: mode WITHIN GROUP
- Aggregate: percentile_cont WITHIN GROUP
- Aggregate: percentile_disc WITHIN GROUP
- Aggregate: percent_rank WITHIN GROUP
- Aggregate: rank WITHIN GROUP
- Aggregate: regr_avgx
- Aggregate: regr_avgy
- Aggregate: regr_count
- Aggregate: regr_intercept
- Aggregate: regr_r2
- Aggregate: regr_slope
- Aggregate: regr_sxx
- Aggregate: regr_sxy
- Aggregate: regr_syy
- Aggregate: stddev
- Aggregate: stddev_pop
- Aggregate: stddev_samp
- Aggregate: string_agg
- Aggregate: sum
- Aggregate: variance
- Aggregate: var_pop
- Aggregate: var_samp
- Aggregate: xmlagg
-
Functions: Array
- Array Functions and Operators
- Array: &&
- Array: <
- Array: <=
- Array: <>
- Array: <@
- Array: =
- Array: >
- Array: >=
- Array: @>
- Array: array_append
- Array: array_cat
- Array: array_dims
- Array: array_fill
- Array: array_length
- Array: array_lower
- Array: array_ndims
- Array: array_position
- Array: array_positions
- Array: array_prepend
- Array: array_remove
- Array: array_replace
- Array: array_to_string
- Array: array_upper
- Array: cardinality
- Array: string_to_array
- Array: unnest
- Array: ||
-
Functions: Binary String
- Binary String Functions and Operators
- Binary String: btrim
- Binary String: decode
- Binary String: encode
- Binary String: get_bit
- Binary String: get_byte
- Binary String: length
- Binary String: md5
- Binary String: octet_length
- Binary String: overlay
- Binary String: position
- Binary String: set_bit
- Binary String: set_byte
- Binary String: sha224
- Binary String: sha256
- Binary String: sha384
- Binary String: sha512
- Binary String: substring
- Binary String: trim
- Binary String: ||
- Functions: Bit String
- Functions: Data Type Formatting
-
Functions: Date/Time
- Date/Time Functions and Operators
- Date/Time: *
- Date/Time: +
- Date/Time: -
- Date/Time: /
- Date/Time: age
- Date/Time: AT TIME ZONE
- Date/Time: clock_timestamp
- Date/Time: current_date
- Date/Time: current_time
- Date/Time: current_timestamp
- Date/Time: date_part
- Date/Time: date_trunc
- Date/Time: extract
- Date/Time: EXTRACT, date_part
- Date/Time: isfinite
- Date/Time: justify_days
- Date/Time: justify_hours
- Date/Time: justify_interval
- Date/Time: localtime
- Date/Time: localtimestamp
- Date/Time: make_date
- Date/Time: make_interval
- Date/Time: make_time
- Date/Time: make_timestamp
- Date/Time: make_timestamptz
- Date/Time: now
- Date/Time: statement_timestamp
- Date/Time: timeofday
- Date/Time: to_timestamp
- Date/Time: transaction_timestamp
-
Functions: Geometric
- Geometric Functions and Operators
- Geometric: #
- Geometric: ##
- Geometric: &&
- Geometric: &<
- Geometric: &<|
- Geometric: &>
- Geometric: *
- Geometric: +
- Geometric: -
- Geometric: /
- Geometric: <->
- Geometric: <<
- Geometric: <<|
- Geometric: <@
- Geometric: <^
- Geometric: >>
- Geometric: >^
- Geometric: ?#
- Geometric: ?-
- Geometric: ?-|
- Geometric: ?|
- Geometric: ?||
- Geometric: @-@
- Geometric: @>
- Geometric: @@
- Geometric: area
- Geometric: bound_box
- Geometric: box
- Geometric: center
- Geometric: circle
- Geometric: diameter
- Geometric: height
- Geometric: isclosed
- Geometric: isopen
- Geometric: length
- Geometric: line
- Geometric: lseg
- Geometric: npoints
- Geometric: path
- Geometric: pclose
- Geometric: point
- Geometric: polygon
- Geometric: popen
- Geometric: radius
- Geometric: width
- Geometric: |&>
- Geometric: |>>
- Geometric: ~=
- Functions: JSON
-
Functions: Mathematical
- Mathematical Functions and Operators
- Mathematical: !
- Mathematical: !!
- Mathematical: #
- Mathematical: %
- Mathematical: &
- Mathematical: *
- Mathematical: +
- Mathematical: -
- Mathematical: /
- Mathematical: <<
- Mathematical: >>
- Mathematical: @
- Mathematical: abs
- Mathematical: acos
- Mathematical: acosh
- Mathematical: asin
- Mathematical: asinh
- Mathematical: atan
- Mathematical: atan2
- Mathematical: atanh
- Mathematical: cbrt
- Mathematical: ceil
- Mathematical: ceiling
- Mathematical: cos
- Mathematical: cosh
- Mathematical: cot
- Mathematical: degrees
- Mathematical: div
- Mathematical: exp
- Mathematical: floor
- Mathematical: ln
- Mathematical: log
- Mathematical: log10
- Mathematical: mod
- Mathematical: pi
- Mathematical: power
- Mathematical: radians
- Mathematical: random
- Mathematical: round
- Mathematical: scale
- Mathematical: setseed
- Mathematical: sign
- Mathematical: sin
- Mathematical: sinh
- Mathematical: sqrt
- Mathematical: tan
- Mathematical: tanh
- Mathematical: trunc
- Mathematical: width_bucket
- Mathematical: ^
- Mathematical: |
- Mathematical: |/
- Mathematical: ||/
- Mathematical: ~
-
Functions: Network Address
- Network Address Functions and Operators
- Network Address: &
- Network Address: &&
- Network Address: +
- Network Address: -
- Network Address: <
- Network Address: <<
- Network Address: <<=
- Network Address: <=
- Network Address: <>
- Network Address: =
- Network Address: >
- Network Address: >=
- Network Address: >>
- Network Address: >>=
- Network Address: abbrev
- Network Address: broadcast
- Network Address: family
- Network Address: host
- Network Address: hostmask
- Network Address: inet_merge
- Network Address: inet_same_family
- Network Address: macaddr8_set7bit
- Network Address: masklen
- Network Address: netmask
- Network Address: network
- Network Address: set_masklen
- Network Address: text
- Network Address: trunc
- Network Address: |
- Network Address: ~
-
Functions: Range
- Range Functions and Operators
- Range: &&
- Range: &<
- Range: &>
- Range: *
- Range: +
- Range: -
- Range: -|-
- Range: <
- Range: <<
- Range: <=
- Range: <>
- Range: <@
- Range: =
- Range: >
- Range: >=
- Range: >>
- Range: @>
- Range: isempty
- Range: lower
- Range: lower_inc
- Range: lower_inf
- Range: range_merge
- Range: upper
- Range: upper_inc
- Range: upper_inf
- Functions: Statistics Information
-
Functions: String
- String Functions and Operators
- String: ascii
- String: bit_length
- String: btrim
- String: character_length
- String: char_length
- String: chr
- String: concat
- String: concat_ws
- String: convert
- String: convert_from
- String: convert_to
- String: decode
- String: encode
- String: format
- String: initcap
- String: left
- String: length
- String: lower
- String: lpad
- String: ltrim
- String: md5
- String: octet_length
- String: overlay
- String: parse_ident
- String: pg_client_encoding
- String: position
- String: quote_ident
- String: quote_literal
- String: quote_nullable
- String: regexp_match
- String: regexp_matches
- String: regexp_replace
- String: regexp_split_to_array
- String: regexp_split_to_table
- String: repeat
- String: replace
- String: reverse
- String: right
- String: rpad
- String: rtrim
- String: split_part
- String: starts_with
- String: strpos
- String: substr
- String: substring
- String: to_ascii
- String: to_hex
- String: translate
- String: trim
- String: upper
- String: ||
-
Functions: System Administration
- Administration Functions
- System Administration: brin_desummarize_range
- System Administration: brin_summarize_new_values
- System Administration: brin_summarize_range
- System Administration: current_setting
- System Administration: gin_clean_pending_list
- System Administration: pg_advisory_lock
- System Administration: pg_advisory_lock_shared
- System Administration: pg_advisory_unlock
- System Administration: pg_advisory_unlock_all
- System Administration: pg_advisory_unlock_shared
- System Administration: pg_advisory_xact_lock
- System Administration: pg_advisory_xact_lock_shared
- System Administration: pg_backup_start_time
- System Administration: pg_cancel_backend
- System Administration: pg_collation_actual_version
- System Administration: pg_column_size
- System Administration: pg_copy_logical_replication_slot
- System Administration: pg_copy_physical_replication_slot
- System Administration: pg_create_logical_replication_slot
- System Administration: pg_create_physical_replication_slot
- System Administration: pg_create_restore_point
- System Administration: pg_current_wal_flush_lsn
- System Administration: pg_current_wal_insert_lsn
- System Administration: pg_current_wal_lsn
- System Administration: pg_database_size
- System Administration: pg_drop_replication_slot
- System Administration: pg_export_snapshot
- System Administration: pg_filenode_relation
- System Administration: pg_import_system_collations
- System Administration: pg_indexes_size
- System Administration: pg_is_in_backup
- System Administration: pg_is_in_recovery
- System Administration: pg_is_wal_replay_paused
- System Administration: pg_last_wal_receive_lsn
- System Administration: pg_last_wal_replay_lsn
- System Administration: pg_last_xact_replay_timestamp
- System Administration: pg_logical_emit_message
- System Administration: pg_logical_slot_get_binary_changes
- System Administration: pg_logical_slot_get_changes
- System Administration: pg_logical_slot_peek_binary_changes
- System Administration: pg_logical_slot_peek_changes
- System Administration: pg_ls_archive_statusdir
- System Administration: pg_ls_dir
- System Administration: pg_ls_logdir
- System Administration: pg_ls_tmpdir
- System Administration: pg_ls_waldir
- System Administration: pg_partition_ancestors
- System Administration: pg_partition_root
- System Administration: pg_partition_tree
- System Administration: pg_promote
- System Administration: pg_read_binary_file
- System Administration: pg_read_file
- System Administration: pg_relation_filenode
- System Administration: pg_relation_filepath
- System Administration: pg_relation_size
- System Administration: pg_reload_conf
- System Administration: pg_replication_origin_advance
- System Administration: pg_replication_origin_create
- System Administration: pg_replication_origin_drop
- System Administration: pg_replication_origin_oid
- System Administration: pg_replication_origin_progress
- System Administration: pg_replication_origin_session_is_setup
- System Administration: pg_replication_origin_session_progress
- System Administration: pg_replication_origin_session_reset
- System Administration: pg_replication_origin_session_setup
- System Administration: pg_replication_origin_xact_reset
- System Administration: pg_replication_origin_xact_setup
- System Administration: pg_replication_slot_advance
- System Administration: pg_rotate_logfile
- System Administration: pg_size_bytes
- System Administration: pg_size_pretty
- System Administration: pg_start_backup
- System Administration: pg_stat_file
- System Administration: pg_stop_backup
- System Administration: pg_switch_wal
- System Administration: pg_tablespace_size
- System Administration: pg_table_size
- System Administration: pg_terminate_backend
- System Administration: pg_total_relation_size
- System Administration: pg_try_advisory_lock
- System Administration: pg_try_advisory_lock_shared
- System Administration: pg_try_advisory_xact_lock
- System Administration: pg_try_advisory_xact_lock_shared
- System Administration: pg_walfile_name
- System Administration: pg_walfile_name_offset
- System Administration: pg_wal_lsn_diff
- System Administration: pg_wal_replay_pause
- System Administration: pg_wal_replay_resume
- System Administration: set_config
-
Functions: System Information
- System Information Functions and Operators
- System Information: =
- System Information: @>
- System Information: acldefault
- System Information: aclexplode
- System Information: asc
- System Information: backup_end_lsn
- System Information: backup_start_lsn
- System Information: backward_scan
- System Information: bitmap_scan
- System Information: blocks_per_segment
- System Information: bytes_per_wal_segment
- System Information: can_exclude
- System Information: can_include
- System Information: can_multi_col
- System Information: can_order
- System Information: can_unique
- System Information: catalog_version_no
- System Information: checkpoint_lsn
- System Information: checkpoint_time
- System Information: clusterable
- System Information: collation for
- System Information: col_description
- System Information: current_catalog
- System Information: current_database
- System Information: current_query
- System Information: current_role
- System Information: current_schema
- System Information: current_schemas
- System Information: current_user
- System Information: database_block_size
- System Information: data_page_checksum_version
- System Information: desc
- System Information: distance_orderable
- System Information: end_of_backup_record_required
- System Information: float4_pass_by_value
- System Information: float8_pass_by_value
- System Information: format_type
- System Information: full_page_writes
- System Information: has_any_column_privilege
- System Information: has_column_privilege
- System Information: has_database_privilege
- System Information: has_foreign_data_wrapper_privilege
- System Information: has_function_privilege
- System Information: has_language_privilege
- System Information: has_schema_privilege
- System Information: has_sequence_privilege
- System Information: has_server_privilege
- System Information: has_tablespace_privilege
- System Information: has_table_privilege
- System Information: has_type_privilege
- System Information: index_scan
- System Information: inet_client_addr
- System Information: inet_client_port
- System Information: inet_server_addr
- System Information: inet_server_port
- System Information: large_object_chunk_size
- System Information: makeaclitem
- System Information: max_data_alignment
- System Information: max_identifier_length
- System Information: max_index_columns
- System Information: max_toast_chunk_size
- System Information: min_recovery_end_lsn
- System Information: min_recovery_end_timeline
- System Information: newest_commit_ts_xid
- System Information: next_multixact_id
- System Information: next_multi_offset
- System Information: next_oid
- System Information: next_xid
- System Information: nulls_first
- System Information: nulls_last
- System Information: obj_description
- System Information: oldest_active_xid
- System Information: oldest_commit_ts_xid
- System Information: oldest_multi_dbid
- System Information: oldest_multi_xid
- System Information: oldest_xid
- System Information: oldest_xid_dbid
- System Information: orderable
- System Information: pg_backend_pid
- System Information: pg_blocking_pids
- System Information: pg_collation_is_visible
- System Information: pg_conf_load_time
- System Information: pg_control_checkpoint
- System Information: pg_control_init
- System Information: pg_control_last_modified
- System Information: pg_control_recovery
- System Information: pg_control_system
- System Information: pg_control_version
- System Information: pg_conversion_is_visible
- System Information: pg_current_logfile
- System Information: pg_describe_object
- System Information: pg_function_is_visible
- System Information: pg_get_constraintdef
- System Information: pg_get_expr
- System Information: pg_get_functiondef
- System Information: pg_get_function_arguments
- System Information: pg_get_function_identity_arguments
- System Information: pg_get_function_result
- System Information: pg_get_indexdef
- System Information: pg_get_keywords
- System Information: pg_get_object_address
- System Information: pg_get_ruledef
- System Information: pg_get_serial_sequence
- System Information: pg_get_statisticsobjdef
- System Information: pg_get_triggerdef
- System Information: pg_get_userbyid
- System Information: pg_get_viewdef
- System Information: pg_has_role
- System Information: pg_identify_object
- System Information: pg_identify_object_as_address
- System Information: pg_indexam_has_property
- System Information: pg_index_column_has_property
- System Information: pg_index_has_property
- System Information: pg_is_other_temp_schema
- System Information: pg_jit_available
- System Information: pg_last_committed_xact
- System Information: pg_listening_channels
- System Information: pg_my_temp_schema
- System Information: pg_notification_queue_usage
- System Information: pg_opclass_is_visible
- System Information: pg_operator_is_visible
- System Information: pg_opfamily_is_visible
- System Information: pg_options_to_table
- System Information: pg_postmaster_start_time
- System Information: pg_safe_snapshot_blocking_pids
- System Information: pg_statistics_obj_is_visible
- System Information: pg_tablespace_databases
- System Information: pg_tablespace_location
- System Information: pg_table_is_visible
- System Information: pg_trigger_depth
- System Information: pg_ts_config_is_visible
- System Information: pg_ts_dict_is_visible
- System Information: pg_ts_parser_is_visible
- System Information: pg_ts_template_is_visible
- System Information: pg_typeof
- System Information: pg_type_is_visible
- System Information: pg_xact_commit_timestamp
- System Information: prev_timeline_id
- System Information: redo_lsn
- System Information: redo_wal_file
- System Information: returnable
- System Information: row_security_active
- System Information: search_array
- System Information: search_nulls
- System Information: session_user
- System Information: shobj_description
- System Information: system_identifier
- System Information: timeline_id
- System Information: to_regclass
- System Information: to_regnamespace
- System Information: to_regoper
- System Information: to_regoperator
- System Information: to_regproc
- System Information: to_regprocedure
- System Information: to_regrole
- System Information: to_regtype
- System Information: txid_current
- System Information: txid_current_if_assigned
- System Information: txid_current_snapshot
- System Information: txid_snapshot_xip
- System Information: txid_snapshot_xmax
- System Information: txid_snapshot_xmin
- System Information: txid_status
- System Information: txid_visible_in_snapshot
- System Information: user
- System Information: version
- System Information: wal_block_size
- System Information: ~
-
Functions: Text Search
- Text Search Functions and Operators
- Text Search: !!
- Text Search: &&
- Text Search: <->
- Text Search: <@
- Text Search: @>
- Text Search: @@
- Text Search: @@@
- Text Search: array_to_tsvector
- Text Search: get_current_ts_config
- Text Search: json_to_tsvector, filter json)
- Text Search: length
- Text Search: numnode
- Text Search: phraseto_tsquery
- Text Search: plainto_tsquery
- Text Search: querytree
- Text Search: setweight
- Text Search: strip
- Text Search: to_tsquery
- Text Search: to_tsvector
- Text Search: to_tsvector)
- Text Search: tsquery_phrase
- Text Search: tsvector_to_array
- Text Search: tsvector_update_trigger
- Text Search: tsvector_update_trigger_column
- Text Search: ts_debug
- Text Search: ts_delete
- Text Search: ts_filter
- Text Search: ts_headline
- Text Search: ts_headline, query tsquery )
- Text Search: ts_lexize
- Text Search: ts_parse
- Text Search: ts_rank
- Text Search: ts_rank_cd
- Text Search: ts_rewrite
- Text Search: ts_stat
- Text Search: ts_token_type
- Text Search: unnest
- Text Search: websearch_to_tsquery
- Text Search: ||
- Functions: Window
- Functions: XML
- Generic WAL Records
- High Availability
- Indexes
- Internals
- Internals: BRIN Indexes
-
Internals: Catalogs
- Catalogs: pg_aggregate
- Catalogs: pg_am
- Catalogs: pg_amop
- Catalogs: pg_amproc
- Catalogs: pg_attrdef
- Catalogs: pg_attribute
- Catalogs: pg_authid
- Catalogs: pg_auth_members
- Catalogs: pg_available_extensions
- Catalogs: pg_available_extension_versions
- Catalogs: pg_cast
- Catalogs: pg_class
- Catalogs: pg_collation
- Catalogs: pg_config
- Catalogs: pg_constraint
- Catalogs: pg_conversion
- Catalogs: pg_cursors
- Catalogs: pg_database
- Catalogs: pg_db_role_setting
- Catalogs: pg_default_acl
- Catalogs: pg_depend
- Catalogs: pg_description
- Catalogs: pg_enum
- Catalogs: pg_event_trigger
- Catalogs: pg_extension
- Catalogs: pg_file_settings
- Catalogs: pg_foreign_data_wrapper
- Catalogs: pg_foreign_server
- Catalogs: pg_foreign_table
- Catalogs: pg_group
- Catalogs: pg_hba_file_rules
- Catalogs: pg_index
- Catalogs: pg_indexes
- Catalogs: pg_inherits
- Catalogs: pg_init_privs
- Catalogs: pg_language
- Catalogs: pg_largeobject
- Catalogs: pg_largeobject_metadata
- Catalogs: pg_locks
- Catalogs: pg_matviews
- Catalogs: pg_namespace
- Catalogs: pg_opclass
- Catalogs: pg_operator
- Catalogs: pg_opfamily
- Catalogs: pg_partitioned_table
- Catalogs: pg_pltemplate
- Catalogs: pg_policies
- Catalogs: pg_policy
- Catalogs: pg_prepared_statements
- Catalogs: pg_prepared_xacts
- Catalogs: pg_proc
- Catalogs: pg_publication
- Catalogs: pg_publication_rel
- Catalogs: pg_publication_tables
- Catalogs: pg_range
- Catalogs: pg_replication_origin
- Catalogs: pg_replication_origin_status
- Catalogs: pg_replication_slots
- Catalogs: pg_rewrite
- Catalogs: pg_roles
- Catalogs: pg_rules
- Catalogs: pg_seclabel
- Catalogs: pg_seclabels
- Catalogs: pg_sequence
- Catalogs: pg_sequences
- Catalogs: pg_settings
- Catalogs: pg_shadow
- Catalogs: pg_shdepend
- Catalogs: pg_shdescription
- Catalogs: pg_shseclabel
- Catalogs: pg_statistic
- Catalogs: pg_statistic_ext
- Catalogs: pg_statistic_ext_data
- Catalogs: pg_stats
- Catalogs: pg_stats_ext
- Catalogs: pg_subscription
- Catalogs: pg_subscription_rel
- Catalogs: pg_tables
- Catalogs: pg_tablespace
- Catalogs: pg_timezone_abbrevs
- Catalogs: pg_timezone_names
- Catalogs: pg_transform
- Catalogs: pg_trigger
- Catalogs: pg_ts_config
- Catalogs: pg_ts_config_map
- Catalogs: pg_ts_dict
- Catalogs: pg_ts_parser
- Catalogs: pg_ts_template
- Catalogs: pg_type
- Catalogs: pg_user
- Catalogs: pg_user_mapping
- Catalogs: pg_user_mappings
- Catalogs: pg_views
- Catalogs: System Views
- System Catalogs
- Internals: Genetic Query Optimizer
- Internals: GIN Indexes
- Internals: GiST Indexes
- Internals: Index Access Method
- Internals: Physical Storage
- Internals: SP-GiST Indexes
- Just-in-Time Compilation (JIT)
- Localization
- Logical Decoding
- Logical Replication
- Maintenance
- Managing Databases
- Monitoring
-
Parallel Query
- How Parallel Query Works
- Parallel Plans
- Parallel Plans: Parallel Aggregation
- Parallel Plans: Parallel Append
- Parallel Plans: Parallel Joins
- Parallel Plans: Parallel Plan Tips
- Parallel Plans: Parallel Scans
- Parallel Safety
- Parallel Safety: Parallel Labeling for Functions and Aggregates
- When Can Parallel Query Be Used?
- Performance Tips
-
Queries
- Combining Queries
- Combining Queries: EXCEPT
- Combining Queries: INTERSECT
- Combining Queries: UNION
- LIMIT and OFFSET
- ORDER BY
- Queries
- SELECT Lists
- SELECT Lists: Column Labels
- SELECT Lists: DISTINCT
- SELECT Lists: Select-List Items
- Table Expressions
- Table Expressions: FROM Clause
- Table Expressions: FULL OUTER JOIN
- Table Expressions: GROUP BY and HAVING Clauses
- Table Expressions: GROUPING SETS, CUBE, and ROLLUP
- Table Expressions: INNER JOIN
- Table Expressions: Joined Tables
- Table Expressions: LATERAL Subqueries
- Table Expressions: LEFT OUTER JOIN
- Table Expressions: RIGHT OUTER JOIN
- Table Expressions: Subqueries
- Table Expressions: Table and Column Aliases
- Table Expressions: Table Functions
- Table Expressions: WHERE Clause
- Table Expressions: Window Function Processing
- VALUES Lists
- WITH Queries
- WITH Queries: Data-Modifying Statements in WITH
- WITH Queries: SELECT in WITH
-
Server Configuration
- Config: allow_system_table_mods
- Config: application_name
- Config: archive_cleanup_command
- Config: archive_command
- Config: archive_mode
- Config: archive_timeout
- Config: array_nulls
- Config: authentication_timeout
- Config: autovacuum
- Config: autovacuum_analyze_scale_factor
- Config: autovacuum_analyze_threshold
- Config: autovacuum_freeze_max_age
- Config: autovacuum_max_workers
- Config: autovacuum_multixact_freeze_max_age
- Config: autovacuum_naptime
- Config: autovacuum_vacuum_cost_delay
- Config: autovacuum_vacuum_cost_limit
- Config: autovacuum_vacuum_scale_factor
- Config: autovacuum_vacuum_threshold
- Config: autovacuum_work_mem
- Config: backend_flush_after
- Config: backslash_quote
- Config: bgwriter_delay
- Config: bgwriter_flush_after
- Config: bgwriter_lru_maxpages
- Config: bgwriter_lru_multiplier
- Config: block_size
- Config: bonjour
- Config: bonjour_name
- Config: bytea_output
- Config: checkpoint_completion_target
- Config: checkpoint_flush_after
- Config: checkpoint_timeout
- Config: checkpoint_warning
- Config: check_function_bodies
- Config: client_encoding
- Config: client_min_messages
- Config: cluster_name
- Config: commit_delay
- Config: commit_siblings
- Config: config_file
- Config: constraint_exclusion
- Config: cpu_index_tuple_cost
- Config: cpu_operator_cost
- Config: cpu_tuple_cost
- Config: cursor_tuple_fraction
- Config: data_checksums
- Config: data_directory
- Config: data_directory_mode
- Config: data_sync_retry
- Config: DateStyle
- Config: db_user_namespace
- Config: deadlock_timeout
- Config: debug_assertions
- Config: default_statistics_target
- Config: default_tablespace
- Config: default_table_access_method
- Config: default_text_search_config
- Config: default_transaction_deferrable
- Config: default_transaction_isolation
- Config: default_transaction_read_only
- Config: dynamic_library_path
- Config: dynamic_shared_memory_type
- Config: effective_cache_size
- Config: effective_io_concurrency
- Config: enable_bitmapscan
- Config: enable_gathermerge
- Config: enable_hashagg
- Config: enable_hashjoin
- Config: enable_indexonlyscan
- Config: enable_indexscan
- Config: enable_material
- Config: enable_mergejoin
- Config: enable_nestloop
- Config: enable_parallel_append
- Config: enable_parallel_hash
- Config: enable_partitionwise_aggregate
- Config: enable_partitionwise_join
- Config: enable_partition_pruning
- Config: enable_seqscan
- Config: enable_sort
- Config: enable_tidscan
- Config: escape_string_warning
- Config: event_source
- Config: exit_on_error
- Config: external_pid_file
- Config: extra_float_digits
- Config: force_parallel_mode
- Config: from_collapse_limit
- Config: fsync
- Config: full_page_writes
- Config: geqo
- Config: geqo_effort
- Config: geqo_generations
- Config: geqo_pool_size
- Config: geqo_seed
- Config: geqo_selection_bias
- Config: geqo_threshold
- Config: gin_fuzzy_search_limit
- Config: gin_pending_list_limit
- Config: hba_file
- Config: hot_standby
- Config: hot_standby_feedback
- Config: huge_pages
- Config: ident_file
- Config: idle_in_transaction_session_timeout
- Config: ignore_checksum_failure
- Config: ignore_system_indexes
- Config: integer_datetimes
- Config: IntervalStyle
- Config: jit
- Config: jit_above_cost
- Config: jit_debugging_support
- Config: jit_dump_bitcode
- Config: jit_expressions
- Config: jit_inline_above_cost
- Config: jit_optimize_above_cost
- Config: jit_profiling_support
- Config: jit_provider
- Config: jit_tuple_deforming
- Config: join_collapse_limit
- Config: krb_caseins_users
- Config: krb_server_keyfile
- Config: lc_collate
- Config: lc_ctype
- Config: lc_messages
- Config: lc_monetary
- Config: lc_numeric
- Config: lc_time
- Config: listen_addresses
- Config: local_preload_libraries
- Config: lock_timeout
- Config: logging_collector
- Config: log_autovacuum_min_duration
- Config: log_checkpoints
- Config: log_connections
- Config: log_destination
- Config: log_directory
- Config: log_disconnections
- Config: log_duration
- Config: log_error_verbosity
- Config: log_filename
- Config: log_file_mode
- Config: log_hostname
- Config: log_line_prefix
- Config: log_lock_waits
- Config: log_min_duration_statement
- Config: log_min_error_statement
- Config: log_min_messages
- Config: log_replication_commands
- Config: log_rotation_age
- Config: log_rotation_size
- Config: log_statement
- Config: log_temp_files
- Config: log_timezone
- Config: log_transaction_sample_rate
- Config: log_truncate_on_rotation
- Config: lo_compat_privileges
- Config: maintenance_work_mem
- Config: max_connections
- Config: max_files_per_process
- Config: max_function_args
- Config: max_identifier_length
- Config: max_index_keys
- Config: max_locks_per_transaction
- Config: max_logical_replication_workers
- Config: max_parallel_maintenance_workers
- Config: max_parallel_workers
- Config: max_parallel_workers_per_gather
- Config: max_pred_locks_per_page
- Config: max_pred_locks_per_relation
- Config: max_pred_locks_per_transaction
- Config: max_prepared_transactions
- Config: max_replication_slots
- Config: max_stack_depth
- Config: max_standby_archive_delay
- Config: max_standby_streaming_delay
- Config: max_sync_workers_per_subscription
- Config: max_wal_senders
- Config: max_wal_size
- Config: max_worker_processes
- Config: min_parallel_index_scan_size
- Config: min_parallel_table_scan_size
- Config: min_wal_size
- Config: old_snapshot_threshold
- Config: operator_precedence_warning
- Config: parallel_leader_participation
- Config: parallel_setup_cost
- Config: parallel_tuple_cost
- Config: password_encryption
- Config: plan_cache_mode
- Config: port
- Config: post_auth_delay
- Config: pre_auth_delay
- Config: primary_conninfo
- Config: primary_slot_name
- Config: promote_trigger_file
- Config: quote_all_identifiers
- Config: random_page_cost
- Config: recovery_end_command
- Config: recovery_min_apply_delay
- Config: recovery_target
- Config: recovery_target_action
- Config: recovery_target_inclusive
- Config: recovery_target_lsn
- Config: recovery_target_name
- Config: recovery_target_time
- Config: recovery_target_timeline
- Config: recovery_target_xid
- Config: restart_after_crash
- Config: restore_command
- Config: row_security
- Config: search_path
- Config: segment_size
- Config: seq_page_cost
- Config: server_encoding
- Config: server_version
- Config: server_version_num
- Config: session_preload_libraries
- Config: session_replication_role
- Config: shared_buffers
- Config: shared_memory_type
- Config: shared_preload_libraries
- Config: ssl
- Config: ssl_ca_file
- Config: ssl_cert_file
- Config: ssl_ciphers
- Config: ssl_crl_file
- Config: ssl_dh_params_file
- Config: ssl_ecdh_curve
- Config: ssl_key_file
- Config: ssl_library
- Config: ssl_max_protocol_version
- Config: ssl_min_protocol_version
- Config: ssl_passphrase_command
- Config: ssl_passphrase_command_supports_reload
- Config: ssl_prefer_server_ciphers
- Config: standard_conforming_strings
- Config: statement_timeout
- Config: stats_temp_directory
- Config: superuser_reserved_connections
- Config: synchronize_seqscans
- Config: synchronous_commit
- Config: synchronous_standby_names
- Config: syslog_facility
- Config: syslog_ident
- Config: syslog_sequence_numbers
- Config: syslog_split_messages
- Config: tcp_keepalives_count
- Config: tcp_keepalives_idle
- Config: tcp_keepalives_interval
- Config: tcp_user_timeout
- Config: temp_buffers
- Config: temp_file_limit
- Config: temp_tablespaces
- Config: TimeZone
- Config: timezone_abbreviations
- Config: trace_notify
- Config: trace_recovery_messages
- Config: trace_sort
- Config: track_activities
- Config: track_activity_query_size
- Config: track_commit_timestamp
- Config: track_counts
- Config: track_functions
- Config: track_io_timing
- Config: transform_null_equals
- Config: unix_socket_directories
- Config: unix_socket_group
- Config: unix_socket_permissions
- Config: update_process_title
- Config: vacuum_cleanup_index_scale_factor
- Config: vacuum_cost_delay
- Config: vacuum_cost_limit
- Config: vacuum_cost_page_dirty
- Config: vacuum_cost_page_hit
- Config: vacuum_cost_page_miss
- Config: vacuum_defer_cleanup_age
- Config: vacuum_freeze_min_age
- Config: vacuum_freeze_table_age
- Config: vacuum_multixact_freeze_min_age
- Config: vacuum_multixact_freeze_table_age
- Config: wal_block_size
- Config: wal_buffers
- Config: wal_compression
- Config: wal_consistency_checking
- Config: wal_debug
- Config: wal_init_zero
- Config: wal_keep_segments
- Config: wal_level
- Config: wal_log_hints
- Config: wal_receiver_status_interval
- Config: wal_receiver_timeout
- Config: wal_recycle
- Config: wal_retrieve_retry_interval
- Config: wal_segment_size
- Config: wal_sender_timeout
- Config: wal_sync_method
- Config: wal_writer_delay
- Config: wal_writer_flush_after
- Config: work_mem
- Config: xmlbinary
- Config: xmloption
- Config: zero_damaged_pages
- Server Configuration: Automatic Vacuuming
- Server Configuration: Client Connection Defaults
- Server Configuration: Connections and Authentication
- Server Configuration: Customized Options
- Server Configuration: Developer Options
- Server Configuration: Error Handling
- Server Configuration: Error Reporting and Logging
- Server Configuration: File Locations
- Server Configuration: Lock Management
- Server Configuration: Preset Options
- Server Configuration: Query Planning
- Server Configuration: Replication
- Server Configuration: Resource Consumption
- Server Configuration: Run-time Statistics
- Server Configuration: Setting Parameters
- Server Configuration: Short Options
- Server Configuration: Version and Platform Compatibility
- Server Configuration: Write Ahead Log
-
Server Setup and Operation
- Creating a Database Cluster
- Creating a Database Cluster: File Systems
- Creating a Database Cluster: Use of Secondary File Systems
- Encryption Options
- Managing Kernel Resources
- Managing Kernel Resources: Linux Huge Pages
- Managing Kernel Resources: Linux Memory Overcommit
- Managing Kernel Resources: Resource Limits
- Managing Kernel Resources: Shared Memory and Semaphores
- Managing Kernel Resources: systemd RemoveIPC
- PostgreSQL User Account
- Preventing Server Spoofing
- Registering Event Log on Windows
- Secure TCP/IP Connections with GSSAPI Encryption
- Secure TCP/IP Connections with GSSAPI Encryption: Basic Setup
- Secure TCP/IP Connections with SSH Tunnels
- Secure TCP/IP Connections with SSL
- Secure TCP/IP Connections with SSL: Basic Setup
- Secure TCP/IP Connections with SSL: Client Certificates
- Secure TCP/IP Connections with SSL: Creating Certificates
- Secure TCP/IP Connections with SSL: OpenSSL Configuration
- Secure TCP/IP Connections with SSL: SSL Server File Usage
- Shutting Down the Server
- Starting the Database Server
- Starting the Database Server: Client Connection Problems
- Starting the Database Server: Server Start-up Failures
- Upgrading a PostgreSQL Cluster
- Upgrading a PostgreSQL Cluster: Upgrading Data via pg_dumpall
- Upgrading a PostgreSQL Cluster: Upgrading Data via pg_upgrade
- Upgrading a PostgreSQL Cluster: Upgrading Data via Replication
-
Syntax
- Calling Functions
- Calling Functions: Mixed Notation
- Calling Functions: Named Notation
- Calling Functions: Positional Notation
- Lexical Structure
- Lexical Structure: Comments
- Lexical Structure: Constants
- Lexical Structure: Identifiers and Key Words
- Lexical Structure: Operator Precedence
- Lexical Structure: Operators
- Lexical Structure: Special Characters
- Value Expressions
- Value Expressions: Aggregate Expressions
- Value Expressions: Array Constructors
- Value Expressions: Collation Expressions
- Value Expressions: Column References
- Value Expressions: Expression Evaluation Rules
- Value Expressions: Field Selection
- Value Expressions: Function Calls
- Value Expressions: Operator Invocations
- Value Expressions: Positional Parameters
- Value Expressions: Row Constructors
- Value Expressions: Scalar Subqueries
- Value Expressions: Subscripts
- Value Expressions: Type Casts
- Value Expressions: Window Function Calls
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System Catalog Declarations and Initial Contents
- System Catalog Declaration Rules
- System Catalog Initial Data
- System Catalog Initial Data: Automatic Creation of Array Types
- System Catalog Initial Data: Data File Format
- System Catalog Initial Data: OID Assignment
- System Catalog Initial Data: OID Reference Lookup
- System Catalog Initial Data: Recipes for Editing Data Files
- Table Access Method Interface Definition
- Tutorial: Advanced Features
- Tutorial: Getting Started
- Tutorial: The SQL Language
- Type Conversion
- Write-Ahead Log