Wiki / Foreign Data Wrappers
Foreign Data Wrappers
Compare versionsExternal data adapters, versioned capabilities, transaction behavior and extension evidence.
Reading PostgreSQL 18.6.
2 core entries; 2 recorded in PostgreSQL 18.6.
-
postgres_fdw Remote PostgreSQL
Remote PostgreSQL
Accesses tables in remote PostgreSQL servers through foreign tables.
-
file_fdw Server files
Server files
Reads server-side files or program output through the foreign-data wrapper interface.
RecordedFirst recordedInterface or attribute changeNo longer recorded
Squares indicate presence in sampled builds, not first introduction. Select a square for the same-version definition and sources.
Changes in PostgreSQL 18.6 · Export JSON
FDW-category catalogue
Current catalogue observation 2026-09-29 from pgext.universe. Extension versions, source metadata dates and declared PostgreSQL compatibility are independent of the selected core version. Catalogue classification does not establish capabilities or maintenance support.
148 directory rows.
| Existing extension | Catalogued version | Declared PG majors | Metadata checked | Evidence scope | Catalogued purpose |
|---|---|---|---|---|---|
| wrappers | 0.6.3 | 14, 15, 16, 17, 18 | 2026-08-30 | Wrapper framework | Foreign data wrappers developed by Supabase |
| multicorn | 3.2 | 14, 15, 16, 17, 18 | 2026-08-30 | Wrapper framework | Fetch foreign data in Python in your PostgreSQL server. |
| odbc_fdw | 0.5.2 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for accessing remote databases using ODBC |
| jdbc_fdw | 1.2 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | foreign-data wrapper for remote servers available over JDBC |
| pgspider_ext | 1.3.0 | 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | foreign-data wrapper for remote PGSpider servers |
| mysql_fdw | 2.9.3 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying a MySQL server |
| oracle_fdw | 2.9.0 | 14, 15, 16, 17, 18 | 2026-08-30 | Primary documentation reviewed separately below | foreign data wrapper for Oracle access |
| tds_fdw | 2.0.5 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying a TDS database (Sybase or Microsoft SQL Server) |
| db2_fdw | 18.2.0 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | foreign data wrapper for DB2 access |
| sqlite_fdw | 2.5.0 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | SQLite Foreign Data Wrapper |
| pgbouncer_fdw | 1.4.0 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Extension for querying PgBouncer stats from normal SQL views & running pgbouncer commands from normal SQL functions |
| etcd_fdw | 0.0.1 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for etcd |
| informix_fdw | 0.6.3 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for Informix access |
| nominatim_fdw | 2.3 | 14, 15, 16, 17, 18 | 2026-09-29 | Catalogue candidate; interface unverified | Nominatim Foreign Data Wrapper for PostgreSQL |
| mongo_fdw | 5.5.3 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | foreign data wrapper for MongoDB access |
| redis_fdw | 1.0 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying a Redis server |
| redis | 0.0.1 | 14, 15, 16, 17, 18 | 2026-08-30 | Related messaging interface | Send redis pub/sub messages to Redis from PostgreSQL Directly |
| kafka_fdw | 0.0.3 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | kafka Foreign Data Wrapper for CSV formatted messages |
| hdfs_fdw | 2.0.5 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | foreign-data wrapper for remote hdfs servers |
| firebird_fdw | 1.4.2 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for Firebird |
| rdf_fdw | 3.0 | 14, 15, 16, 17, 18 | 2026-09-27 | Catalogue candidate; interface unverified | Foreign data wrapper for RDF triplestores over SPARQL endpoints |
| aws_s3 | 0.0.1 | 14, 15, 16, 17, 18 | 2026-08-30 | Related import/export interface | aws_s3 postgres extension to import/export data from/to s3 |
| log_fdw | 1.5 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | foreign-data wrapper for Postgres log file access |
| dblink | 1.2 | 14, 15, 16, 17, 18 | Not recorded | Related remote-query interface | connect to other PostgreSQL databases from within a database |
| file_fdw | 1.0 | 14, 15, 16, 17, 18 | Not recorded | Core interface; see versioned entry | foreign-data wrapper for flat file access |
| postgres_fdw | 1.1 | 14, 15, 16, 17, 18 | Not recorded | Core interface; see versioned entry | foreign-data wrapper for remote PostgreSQL servers |
| clickhousedb_fdw | 1 | 11, 12, 13 | 2026-08-30 | Catalogue candidate; interface unverified | ClickHouse foreign data wrapper with SELECT/INSERT support plus aggregate and join pushdown. |
| holycorn | 1.0 | 10, 11, 12, 13, 14, 15, 16, 17, 18 | 2026-08-30 | Wrapper framework | Ruby foreign data wrapper provider |
| json_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for local and remote JSON document access. |
| parquet_fdw | 0.2 | 10, 11, 12, 13, 14, 15, 16 | 2026-08-30 | Catalogue candidate; interface unverified | Read-only foreign data wrapper for Apache Parquet files |
| www_fdw | 0.1.9 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for accessing web services from PostgreSQL. |
| dblink_plus | 1.0.11 | Unknown | 2026-08-30 | Related remote-query interface | Run SQL against external PostgreSQL, Oracle, MySQL, and SQLite databases from PostgreSQL. |
| cassandra2_fdw | 2.0 | 11, 12, 13, 14, 15 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying Cassandra 2.x and newer from PostgreSQL. |
| ch_fdw | 1.0 | 13 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for federated access from PostgreSQL to ClickHouse. |
| couchdb_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying CouchDB from PostgreSQL. |
| dump_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying rows directly from PostgreSQL custom-format dump files |
| file_fixed_length_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for files with fixed-length fields. |
| file_textarray_fdw | 1.0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper returning each text-file row as a text array. |
| git_fdw | 1.1.0 | 10, 11, 12, 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | PostgreSQL Git Foreign Data Wrapper |
| go_fdw | 1.0 | Unknown | 2026-08-30 | Wrapper development framework | Experimental Go/cgo project template for building PostgreSQL foreign data wrappers. |
| bigtable | 0.1.0 | 10, 11, 12, 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Rust PostgreSQL FDW for Google Bigtable |
| griddb_fdw | 1.2 | 13, 14, 15, 16, 17 | 2026-08-30 | Catalogue candidate; interface unverified | GridDB Foreign Data Wrapper for PostgreSQL |
| hello_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | foreign-data wrapper for hello world |
| influxdb_fdw | 1.3 | 13, 14, 15, 16, 17 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying InfluxDB from PostgreSQL. |
| jdbc2_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Experimental foreign data wrapper for JDBC-accessible databases with remote filter pushdown. |
| kt_fdw | 0.0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for reading and writing Kyoto Tycoon key-value stores. |
| ldap_fdw | 0.1.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying LDAP servers |
| osm_fdw | 4.1.2 | 10, 11, 12, 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for reading OpenStreetMap PBF files |
| kv_fdw | 0.0.1 | 13 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for key-value storage backed by RocksDB/VidarDB. |
| quasar_fdw | 1.4.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | quasar_fdw: push PostgreSQL queries down to Quasar-supported data backends |
| s3_fdw | 0.1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for reading Amazon S3 files through PostgreSQL COPY format. |
| twitter_fdw | 1.1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Legacy foreign data wrapper for the retired unauthenticated Twitter Search API. |
| monetdb_fdw | 0.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | MonetDB foreign data wrapper |
| neo4j-fdw | 4.3.2-dev | 10, 11, 12 | 2026-08-30 | Catalogue candidate; interface unverified | Multicorn-based foreign data wrapper and Cypher functions for Neo4j. |
| neo4j_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | C foreign data wrapper for Neo4j Cypher query results. |
| orc_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for reading ORC formatted files |
| lsm | 0.1 | 11, 12, 13 | 2026-08-30 | Catalogue candidate; interface unverified | RocksDB foreign data wrapper for PostgreSQL |
| oblivpg_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Oblivious foreign data wrapper for table access backed by trusted hardware and ORAM |
| kadb_fdw | 0.10.2 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Transactional Kafka foreign data wrapper for Arenadata DB and Greenplum |
| cassandra_fdw | 3.1 | 11, 12, 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | foreign-data wrapper for querying Cassandra 3+ |
| db2odbc_fdw | 1.0 | 12 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for accessing IBM Db2 through an ODBC data source |
| hive_fdw | 4.0 | 13 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying Apache Hive from PostgreSQL. |
| lua_fdw | 0.0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Lua Foreign Data Wrapper |
| ocgeo_fdw | 1.0 | 10, 11, 12, 13, 14 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for the OpenCageData API |
| douban_fdw | 1.0 | 10, 11, 12, 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying Douban public movie-ranking APIs |
| passwd-fdw | 0.4.0 | 10, 11, 12, 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for Unix/Linux passwd and group databases. |
| aerospike_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign Data Wrapper for Aerospike. |
| file_fdw_program | 1.0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Backport of file_fdw PROGRAM support, exposing a file_fdw-like foreign data wrapper that reads from external commands. |
| greenplum_fdw | 1.0 | 12, 13 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying Greenplum from PostgreSQL using SERIALIZABLE remote transactions. |
| treasuredata_fdw | 1.2 | 10, 11, 12, 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | C foreign data wrapper backed by a Rust td-client bridge for querying and inserting Treasure Data datasets. |
| tsf_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Golden Helix C foreign data wrapper for reading one or more TSF genomic data files as PostgreSQL foreign tables. |
| tuple_fdw | 0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Proof-of-concept C foreign data wrapper for append-only, LZ4-compressed binary tuple files used as cold storage. |
| wdb_fdw | 0.0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | WhiteDB Foreign Data Wrapper |
| gtables_fdw | 0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Global tables across FDW API |
| hash_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Shared-memory hash-table foreign data wrapper for storing and querying rows by a configured key. |
| hba_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Work-in-progress foreign data wrapper scaffold intended to expose pg_hba.conf through SQL. |
| hbase_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying HBase from PostgreSQL. |
| pgc_fdw | 1.0 | 12 | 2026-08-30 | Catalogue candidate; interface unverified | Access remote PostgreSQL tables through a postgres_fdw-derived wrapper with a FoundationDB-backed query cache |
| pglog | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | PostgreSQL log via SQL |
| postgres_fdw_plus | 1.0 | 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Fork postgres_fdw to coordinate remote PostgreSQL transactions with optional two-phase commit and recovery helpers |
| rasterdb | 0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | rasterdb: filesystem-backed PostGIS raster foreign data wrapper |
| sybase_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | C foreign data wrapper for accessing Sybase databases from PostgreSQL. |
| template_fdw | 0.0 | 10, 11, 12, 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for template tables that intentionally rejects SELECT and DML operations. |
| dataclips | 0.0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Archived, unfinished C prototype for querying Heroku Dataclips through a function and planned FDW. |
| redis_link | 1.0 | 16 | 2026-08-30 | Catalogue candidate; interface unverified | Read-write PostgreSQL foreign data wrapper for Redis strings, hashes, and sets, with basic Redis Cluster support |
| clerk_fdw | 0.3.3 | 14, 15, 16, 17 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying the Clerk user-management API from PostgreSQL. |
| prometheus_fdw | 0.2.1 | 14, 15, 16, 17 | 2026-08-30 | Catalogue candidate; interface unverified | A Rust/pgrx foreign data wrapper that queries Prometheus metrics through PostgreSQL foreign tables. |
| lance | 0.0.0 | 13, 14, 15, 16, 17 | 2026-08-30 | Catalogue candidate; interface unverified | PostgreSQL FDW extension for reading and querying Lance format tables |
| pg_kalam | 0.5.5-rc.1 | 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | KalamDB PostgreSQL extension and FDW callback layer for SQL access to KalamDB. |
| orb_fdw | 0.13.3 | 14, 15, 16, 17 | 2026-08-30 | Catalogue candidate; interface unverified | A foreign data wrapper for Orb |
| db721_fdw | 0.0.0 | 11, 12, 13, 14, 15 | 2026-08-30 | Catalogue candidate; interface unverified | Rust/pgrx foreign data wrapper for db721 files, developed for CMU 15-721 project data. |
| prometheusfdw | 0.0.2 | 14, 15, 16 | 2026-08-30 | Catalogue candidate; interface unverified | Queries Prometheus instant-vector data through a PostgreSQL foreign data wrapper. |
| ebs_fdw | 0.0.0 | 11, 12, 13, 14, 15 | 2026-08-30 | Catalogue candidate; interface unverified | Rust/pgrx foreign data wrapper for listing AWS EBS volumes through PostgreSQL. |
| clickhouse_fdw | 1.4 | 11, 12, 13, 14, 15, 16, 17 | 2026-08-30 | Catalogue candidate; interface unverified | ClickHouse foreign data wrapper for PostgreSQL |
| cos_fdw | 1.0 | 10, 11, 12, 13, 14, 15, 16, 17, 18 | 2026-07-11 | Catalogue candidate; interface unverified | TencentDB PostgreSQL foreign data wrapper for reading CSV data from Tencent Cloud Object Storage (COS). |
| dynamodb_fdw | 1.1 | 13, 14, 15, 16, 17 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying and modifying Amazon DynamoDB tables from PostgreSQL. |
| external_search_fdw | Not recorded | 17, 18 | 2026-07-11 | Catalogue candidate; interface unverified | AlloyDB extension that provides a read-only foreign data wrapper for querying Elasticsearch data from PostgreSQL. |
| obs_fdw | 1.0.0 | 13, 14, 15, 16, 17 | 2026-07-12 | Catalogue candidate; interface unverified | Huawei Cloud OBS foreign data wrapper extension listed for RDS PostgreSQL. |
| oss_fdw | Not recorded | 11, 14, 16 | 2026-07-12 | Catalogue candidate; interface unverified | Alibaba Cloud OSS foreign data wrapper for reading and writing OSS objects from PostgreSQL-compatible managed services. |
| parquet_s3_fdw | 0.3 | 13, 14, 15, 16, 17 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for accessing Parquet files on local filesystems and Amazon S3 from PostgreSQL. |
| scylla_fdw | 1.0 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying and modifying ScyllaDB tables from PostgreSQL over CQL. |
| starrocks_fdw | 1.2 | 13, 14, 15, 16, 17, 18 | 2026-07-13 | Catalogue candidate; interface unverified | TencentDB for PostgreSQL foreign data wrapper for querying StarRocks tables through a MySQL-compatible interface. |
| steampipe_postgres_aws | 0.125.0 | 14, 15 | 2026-08-30 | Catalogue candidate; interface unverified | Steampipe AWS native PostgreSQL FDW for querying live AWS APIs as foreign tables. |
| valkey_fdw | 1.0 | 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for querying a Valkey server |
| vmagentfdw | 0.0.2 | 14, 15, 16 | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for reading vmagent scrape-target status through its HTTP API. |
| redis_fdw_rs | 0.6.0 | 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | This extension allows PostgreSQL to directly query and manipulate Redis data as if it were regular PostgreSQL tables. |
| pg_conn2 | 0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Manage separate PostgreSQL database connections from SQL code |
| pg_sheet_fdw | 0.1.2 | 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | Read local Excel XLSX worksheets as PostgreSQL foreign tables |
| oai_fdw | 1.13 | 11, 12, 13, 14, 15, 16, 17, 18 | 2026-08-30 | Catalogue candidate; interface unverified | OAI-PMH foreign data wrapper for PostgreSQL |
| multicdr_fdw | 1.2.2 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper for reading call-detail-record file streams as external SQL tables. |
| ansilo_pgx | 0.1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | A Postgres interface into any database |
| busybee_fdw | 0.1 | Unknown | 2026-07-27 | Catalogue candidate; interface unverified | MQTT Foreign Data Wrapper |
| dir_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | foreign-data wrapper for readdir |
| dummy_data | 1.0 | Unknown | 2026-07-27 | Catalogue candidate; interface unverified | Readable, Null Foreign Data Wrapper for Postgresql 9.3+ |
| filesystem | 0.4.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | filesystem foreign data wrapper |
| gofdw | 0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Postgres FDW in go experiments |
| gp_exttable_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | External Table Foreign Data Wrapper for Greenplum-family databases. |
| grpc_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Foreign data wrapper that delegates table operations to services over gRPC. |
| level_pivot | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | LevelDB FDW with support for pivoting and key templating |
| pg_kafka | 0.0.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Kafka foreign data wrapper for PostgreSQL. |
| pg_monetdb | 1.4 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | MonetDB foreign-data wrapper with stronger analytical pushdown |
| pgtokdb | 0.0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | PostgreSQL to kdb+ Extension |
| pxf | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Historical Greenplum extension for accessing unmanaged data through PXF. |
| pxf_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | PXF Framework for Greengage |
| r53db | 0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | r53db, the PostgreSQL Foreign Data Wrapper for the AWS Route53 Database service |
| steampipe_postgres_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Zero-ETL foreign data wrapper that maps PostgreSQL foreign tables to cloud-service and API calls. |
| tibero_fdw | 1.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | PostgreSQL foreign data wrapper source code for Tibero |
| tsurugi_fdw | 1.5.0 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Tsurugi Foreign Data Wrapper for PostgreSQL. |
| zipfile-fdw | 0.0.1 | Unknown | 2026-08-30 | Catalogue candidate; interface unverified | Prototype foreign data wrapper scaffold for ZIP-file access. |
| dc_fdw | 1.0 | 9.1, 9.2, 9.3 | 2026-08-31 | Catalogue candidate; interface unverified | Historical foreign data wrapper for document collections stored on local disk. |
| openapi_fdw | 0.4.1 | 14, 15, 16, 17, 18 | 2026-08-31 | Catalogue candidate; interface unverified | Read/write foreign data wrapper for OpenAPI and JSON HTTP services. |
| pgwrh_fdw | 1.0.0-alpha1 | 18 | 2026-09-21 | Catalogue candidate; interface unverified | PostgreSQL foreign data wrapper with transaction setting propagation and replica routing |
| gaia_fdw | 0.6 | Unknown | 2026-09-26 | Catalogue candidate; interface unverified | Foreign data wrapper for querying and modifying Gaia Platform databases |
| sdb_fdw | 1.0 | 9.3 | 2026-09-29 | Catalogue candidate; interface unverified | Foreign data wrapper for SequoiaDB collections |
| dist_fdw | 1.0 | Unknown | 2026-09-29 | Catalogue candidate; interface unverified | openGauss foreign data wrapper for bulk loading external files |
| mot_fdw | 1.0 | Unknown | 2026-09-29 | Catalogue candidate; interface unverified | openGauss memory-optimized table engine FDW adapter |
| yesno_pg | 0.1.0 | 17, 18 | 2026-09-29 | Catalogue candidate; interface unverified | yesnodb foreign data, index and table access methods for PostgreSQL |
| ekorre | 1.0.0 | Unknown | 2026-09-29 | Catalogue candidate; interface unverified | Foreign data wrapper for local Git repositories |
| redis_cluster_fdw | 1.0 | 13 | 2026-09-29 | Catalogue candidate; interface unverified | Foreign data wrapper for clustered Redis data |
| mufdw | 0.1 | Unknown | 2026-09-29 | Catalogue candidate; interface unverified | Minimal local-table foreign data wrapper for teaching |
| pixels_fdw | 1.0 | Unknown | 2026-09-29 | Catalogue candidate; interface unverified | Foreign data wrapper for Pixels columnar files |
| firebirdsql_fdw | 0.1.0 | 13, 14, 15, 16, 17, 18 | 2026-09-29 | Catalogue candidate; interface unverified | Rust foreign data wrapper for Firebird databases |
| tdengine_fdw | 1.0 | 15, 16 | 2026-09-29 | Catalogue candidate; interface unverified | Foreign data wrapper for TDengine time-series databases |
| kite_fdw | 1.1 | Unknown | 2026-09-29 | Catalogue candidate; interface unverified | Foreign data wrapper for remote Kite servers |
| pg_xdbc_fdw | 0.1 | 13 | 2026-09-29 | Catalogue candidate; interface unverified | Foreign data wrapper for XDBC data transfer |
| pgspider_core_fdw | 1.0 | Unknown | 2026-09-29 | Catalogue candidate; interface unverified | PGSpider multi-source foreign-table query coordinator |
| pgspider_fdw | 1.4 | Unknown | 2026-09-29 | Catalogue candidate; interface unverified | Foreign data wrapper for remote PGSpider nodes |
| blackhole_fdw | 0.0.1 | Unknown | 2026-09-29 | Catalogue candidate; interface unverified | Black-hole foreign tables that discard writes and return no rows |
Primary-source capability observations
Each statement applies to its named extension version and immutable source revision. Unlisted capabilities remain unknown. These are documentation observations, not runtime tests or current maintenance guarantees.
5 directory rows.
| Extension | Reviewed version | Capability | Evidence state | Conditions | Evidence date and source |
|---|---|---|---|---|---|
| oracle_fdw | 2.9.0 | Predicate pushdown | Conditional | Translatable conditions can run in Oracle; EXPLAIN exposes the remote query. | 2026-09-29 · 3ea9a4522c44 · README.oracle_fdw |
| oracle_fdw | 2.9.0 | Join pushdown | Conditional | Two tables on one server, in SELECT, with shippable predicates; cross joins and three-table joins are excluded. A pushed join prevents ORDER BY pushdown. | 2026-09-29 · 3ea9a4522c44 · README.oracle_fdw |
| oracle_fdw | 2.9.0 | Writes | Conditional | INSERT, UPDATE and DELETE are supported unless readonly is set. UPDATE and DELETE require every Oracle primary-key column to have key enabled. | 2026-09-29 · 3ea9a4522c44 · README.oracle_fdw |
| oracle_fdw | 2.9.0 | Transactions | Conditional | Transaction commands and savepoints reach Oracle. Oracle commits before PostgreSQL, so distributed commit is not atomic. | 2026-09-29 · 3ea9a4522c44 · README.oracle_fdw |
| oracle_fdw | 2.9.0 | Aggregate pushdown | Unknown | This review has not established aggregate pushdown. | 2026-09-29 · 3ea9a4522c44 · README.oracle_fdw |
Reading this collection
Core wrappers have PostgreSQL-version snapshots. Extension directory observations have their own dates and versions and link to the existing extension catalog. Classification or declared compatibility does not establish a capability; unverified cells remain unknown.