Search PostgreSQL documentation
PG 18 · Browse by category, or enter a name or keyword
Category index2411
rtosmReal-time simplification of spatial objects in an OpenStreetMap API database.
openstreetmap spatial-simplification
rtosm
GeospatialGeospatial · Extensions
ruidCompact 22-character Base64 representation of PostgreSQL UUID values.
compact-identifier uuid
pg_ruid
Data typesData types · Extensions
rule_engine_postgre_extensionsRust/pgrx rule-engine extension supporting GRL rules, RETE and forward/backward chaining, versioned rule repositories, triggers, and optional external integrations.
business-rules grl nats p…Features · Extensions
rumRUM index access method
rum
FeaturesFeatures · Extensions
ruvectorSIMD-accelerated vector type and indexes with graph, solver, TDA, local embedding, and AI SQL functions.
ai embeddings gnn graph hnsw pgrx similarity vector
ruvector-postgres
AI and vectorsAI and vectors · Extensions
s2PL/Python functions for converting latitude/longitude to S2 cell IDs and tokens and navigating the S2 cell hierarchy
cell-id gis python s2 s2sphere
s2-postgis
GeospatialGeospatial · Extensions
s3_fdwForeign data wrapper for reading Amazon S3 files through PostgreSQL COPY format.
amazon-s3 copy fdw
s3_fdw
Foreign data wrappersForeign data wrappers · Extensions
s3_ioBasic Amazon S3-compatible object I/O through PostgreSQL SQL functions.
object-storage pgrx s3
s3_io
UtilitiesUtilities · Extensions
safecastPure-SQL helper functions that return NULL for some invalid text-to-number casts.
safe-cast sql type-conversion
safecast
Functions and aggregatesFunctions and aggregates · Extensions
safeupdateRequire criteria for UPDATE and DELETE
safeupdate
AdministrationAdministration · Extensions
saioExperimental load-only planner hook that searches PostgreSQL join orders with simulated annealing as an alternative to GEQO
join-order planner-hook query-optimizer simulated-annealing
saio
F…Features · Extensions
salesforce_idCompact 12-byte PostgreSQL type with casts, comparison operators, and B-tree/hash operator classes for Salesforce IDs.
identifier salesforce type
pg_salesforce_id
Data typesData types · Extensions
saturated_intInteger data type with saturation arithmetic that clamps overflow to int4 bounds.
data-type integer saturation-arithmetic
pg-saturated_int
Data typesData types · Extensions
scanVisual Studio Code - Development Container - PostgreSQL
devcontainer postgres postgresql vscode
scan
FeaturesFeatures · Extensions
schedocCross documentation between Django and DBT projects
pg_schedoc
UtilitiesUtilities · Extensions
scheduleCron-formatted schedule type and UTC timestamp-matching functions for PostgreSQL.
cron data-type scheduling utc
schedule
Time seriesTime series · Extensions
schedulerExtension that enables flexible scheduling and execution of SQL and shell jobs directly within your database
scheduler
Time seriesTime series · Extensions
schedulerxPrototype background-worker scheduler for periodic, one-shot, and NOTIFY-triggered SQL jobs.
background-worker job-scheduler notify sql-execution
generic_scheduler
Time seriesTime series · Extensions
schedulingpgpm demo for the Postgres Conference 2026
scheduling
Time seriesTime series · Extensions
schema_triggersArchived C hook extension adding relation, column, and trigger schema-change events to PostgreSQL event triggers.
ddl event-trigger hooks schema
pg_schema_triggers
FeaturesFeatures · Extensions
scriptsPhaseZero aftermarket application schema packaged as a PostgreSQL extension.
application-schema ddl jsonb phasezero
phasezero_scripts
FeaturesFeatures · Extensions
scrubBackground worker that scans heaps, B-tree indexes, TOAST data, page structure, and checksums for corruption.
btree checksums corruption integrity scrubbing toast
scrub
AdministrationAdministration · Extensions
scylla_fdwForeign data wrapper for querying and modifying ScyllaDB tables from PostgreSQL over CQL.
cql fdw scylladb ssl write
scylla_fdw
Foreign data wrappersForeign data wrappers · Extensions
segF.39. seg — a datatype for line segments or floating point intervals
This module implements a data type seg for representing line segments, or floating point intervals. seg can represent unc…seg — a datatype for line segments or floating point intervals
seller_extSeller-service LISTEN/NOTIFY background workers for a marketplace prototype.
seller_ext
FeaturesFeatures · Extensions
semanticsAquameta Semantics Extension
events plpgsql postgresql rest-api semantics system-catalog version-control-system widgets
semantics
FeaturesFeatures · Extensions
semverSemantic version data type
pg_semver
Data typesData types · Extensions
semver_rsA semantic version data type for PostgreSQL written in Rust
semver_rs
Data typesData types · Extensions
sepgsqlF.40. sepgsql — SELinux-, label-based mandatory access control (MAC) security module
sepgsql is a loadable module that supports label-based mandatory access control (MAC) based on SELinux se…sepgsql — SELinux-, label-based mandatory access control (MAC) security module
sequential_uuidsgenerator of sequential UUIDs
sequential_uuids
Functions and aggregatesFunctions and aggregates · Extensions
session_hash_toolsFunctions to store nested hashes in PL/Perl shared hash
session_hash_tools
Functions and aggregatesFunctions and aggregates · Extensions
session_variableRegistration and manipulation of session variables and constants
session_variable
CompatibilityCompatibility · Extensions
session_variablesSQL functions for storing and retrieving session-scoped values through custom PostgreSQL settings.
custom-guc key-value session-state
session_variables
FeaturesFeatures · Extensions
set_usersimilar to SET ROLE but with added logging
set_user
SecuritySecurity · Extensions
setrankTF-IDF and cover-density ranking functions for tsvector/tsquery using document-frequency statistics from a table.
full-text-search idf ranking tf-idf
setrank
Full-text searchFull-text search · Extensions
sgp4C extension that propagates satellite TLEs with SGP4 and returns WGS84 position as WKT.
astronomy satellite sgp4 tle wgs84
sgp4
GeospatialGeospatial · Extensions
shaThis module provides datatypes for storing SHA-1, SHA-2 and MD5 hashes
datatype hash md5 sha sha1 sha2
sha
Data typesData types · Extensions
shacryptImplements SHA256-CRYPT and SHA512-CRYPT password encryption schemes
shacrypt
UtilitiesUtilities · Extensions
shard_managerSQL/PLpgSQL toolkit for schema-based sharding, shard maps, template-table cloning, and 64-bit distributed ID generation.
id-generation schema security-definer sharding
shard_manager
Analytic…Analytics · Extensions
shardmanExperimental sharding, rebalance, and cross-node lock-graph prototype
shardman
AnalyticsAnalytics · Extensions
More results
Find definitions in the PostgreSQL manuals, reference library, and extension catalogue.
pg17: choose a version ex: extensions only ↑↓ select ↵ open