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results of extension compatibility testing

ihalatci-extension-compat-test-report
Ibrahim Halatci 2025-07-02 15:46:12 +03:00
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| Extension Name | Works as Expected | Notes |
|:-----------------------------|:--------------------|:--------|
| address_standardizer | Yes | |
| address_standardizer_data_us | Yes | |
| age | Partially | Works fine side by side, but graph data cannot be distributed. |
| amcheck | Yes | |
| anon | Partially | Cannot anonimize distributed tables. It is possible to anonymize local tables. |
| auto_explain | No | [Issue #6448](https://github.com/citusdata/citus/issues/6448) |
| azure | Yes | |
| azure_ai | Yes | |
| azure_storage | Yes | |
| bloom | Yes | |
| Btree_gin | Yes | |
| btree_gist | Yes | |
| citext | Yes | |
| Citus_columnar | Yes | |
| cube | Yes | |
| dblink | Yes | |
| dict_int | Yes | |
| dict_xsyn | Yes | |
| earthdistance | Yes | |
| fuzzystrmatch | Yes | |
| hll | Yes | |
| hstore | Yes | |
| hypopg | Partially | Hypopg can work on local tables and individual shards, however, when we create a hypothetical index on a distributed table, citus does not propagate the index creation command to worker nodes, and thus, hypothetical index is not used in explain statements. |
| intagg | Yes | |
| intarray | Yes | |
| isn | Yes | |
| lo | Partially | Extension relies on triggers, but Citus does not support triggers over distributed tables |
| login_hook | Yes | |
| ltree | Yes | |
| oracle_fdw | Yes | |
| orafce | Yes | |
| pageinspect | Yes | |
| pg_buffercache | Yes | |
| pg_cron | Yes | |
| pg_diskann | Yes | |
| pg_failover_slots | To be tested | |
| pg_freespacemap | Partially | Users can set citus.override_table_visibility='off'; to get accurate calcualtion of free space map. |
| pg_hint_plan | Partially | Works fine side by side, but hints are ignored for distirbuted queries |
| pg_partman | Yes | |
| pg_prewarm | Partially | In order to prewarm distributed tables, set " citus.override_table_visibility" to off, and run prewarm for each shard. This needs to be done at each node. |
| pg_repack | Partially | Extension relies on triggers, but Citus does not support triggers over distributed tables. It works fine on local tables. |
| pg_squeeze | Partially | It can work on local tables, but it is not aware of distributed tables. Users can set citus.override_table_visibility='off'; and then run pg_squeeze for each shard. This needs to be done at each node. |
| pg_stat_statements | Yes | |
| pg_trgm | Yes | |
| pg_visibility | Partially | In order to get visibility map of a distributed table, customers can run the functions for shard tables. |
| pgaadauth | Yes | |
| pgaudit | Yes | |
| pgcrypto | Yes | |
| pglogical | No | |
| pgrowlocks | Partially | It works only with individual shards, not with distributed table names. |
| pgstattuple | Yes | |
| plpgsql | Yes | |
| plv8 | Yes | |
| postgis | Yes | |
| postgis_raster | Yes | |
| postgis_sfcgal | Yes | |
| postgis_tiger_geocoder | No | |
| postgis_topology | No | |
| postgres_fdw | Yes | |
| postgres_protobuf | Yes | |
| semver | Yes | |
| session_variable | No | |
| sslinfo | Yes | |
| tablefunc | Yes | |
| tdigest | Yes | |
| tds_fdw | Yes | |
| timescaledb | No | [Known to be incompatible with Citus](https://www.citusdata.com/blog/2021/10/22/how-to-scale-postgres-for-time-series-data-with-citus/#:~:text=Postgres%E2%80%99%20built-in%20partitioning) |
| topn | Yes | |
| tsm_system_rows | Yes | |
| tsm_system_time | Yes | |
| unaccent | Yes | |
| uuid-ossp | Yes | |
| vector (aka pg_vector) | Yes | |
| wal2json | To be tested | |
| xml2 | To be tested | |s