| Extensions | Cloud SQL (PostgreSQL) | AlloyDB | |
|---|---|---|---|
| 1 | address_standardizer | ✔️ | ✔️ |
| 2 | address_standardizer_data_us | ✔️ | ✔️ |
| 3 | amcheck | ✔️ | ✔️ |
| 4 | auto_explain | ✔️ | ✔️ |
| 5 | bloom | ✔️ | |
| 6 | btree_gin | ✔️ | ✔️ |
| 7 | btree_gist | ✔️ | ✔️ |
| 8 | citext | ✔️ | ✔️ |
| 9 | cube | ✔️ | ✔️ |
| 10 | dblink | ✔️ | ✔️ |
| 11 | decoderbufs | ✔️ | ✔️ |
| 12 | dict_int | ✔️ | ✔️ |
| 13 | earthdistance | ✔️ | ✔️ |
| 14 | fuzzystrmatch | ✔️ | ✔️ |
| 15 | google_columnar_engine | ✔️ | |
| 16 | google_db_advisor | ✔️ | |
| 17 | google_ml_integration | ✔️ | |
| 18 | hstore | ✔️ | ✔️ |
| 19 | hypopg | ✔️ | |
| 20 | intagg | ✔️ | ✔️ |
| 21 | intarray | ✔️ | ✔️ |
| 22 | ip4r | ✔️ | ✔️ |
| 23 | isn | ✔️ | ✔️ |
| 24 | lo | ✔️ | ✔️ |
| 25 | ltree | ✔️ | ✔️ |
| 26 | pageinspect | ✔️ | ✔️ |
| 27 | pgRouting | ✔️ | ✔️ |
| 28 | pg_bigm | ✔️ | ✔️ |
| 29 | pg_buffercache | ✔️ | ✔️ |
| 30 | pg_cron | ✔️ | ✔️ |
| 31 | pg_freespacemap | ✔️ | ✔️ |
| 32 | pg_hint_plan | ✔️ | ✔️ |
| 33 | pg_partman | ✔️ | ✔️ |
| 34 | pg_prewarm | ✔️ | ✔️ |
| 35 | pg_proctab | ✔️ | ✔️ |
| 36 | pg_repack | ✔️ | ✔️ |
| 37 | pg_similarity | ✔️ | ✔️ |
| 38 | pg_stat_statements | ✔️ | ✔️ |
| 39 | pg_trgm | ✔️ | ✔️ |
| 40 | pg_visibility | ✔️ | ✔️ |
| 41 | pg_wait_sampling | ✔️ | ✔️ |
| 42 | pgaudit | ✔️ | ✔️ |
| 43 | pgcrypto | ✔️ | ✔️ |
| 44 | pgfincore | ✔️ | ✔️ |
| 45 | pglogical | ✔️ | ✔️ |
| 46 | pgoutput | ✔️ | ✔️ |
| 47 | pgrowlocks | ✔️ | ✔️ |
| 48 | pgstattuple | ✔️ | ✔️ |
| 49 | pgtap (or pgTAP) | ✔️ | ✔️ |
| 50 | plpgsql | ✔️ | ✔️ |
| 51 | plproxy (Or PL/Proxy) | ✔️ | ✔️ |
| 52 | plv8 | ✔️ | ✔️ |
| 53 | postgis | ✔️ | ✔️ |
| 54 | postgis_raster | ✔️ | ✔️ |
| 55 | postgis_sfcgal | ✔️ | ✔️ |
| 56 | postgis_tiger_geocoder | ✔️ | ✔️ |
| 57 | postgis_topology | ✔️ | ✔️ |
| 58 | postgres_fdw | ✔️ | ✔️ |
| 59 | postgresql-hll | ✔️ | ✔️ |
| 60 | prefix | ✔️ | ✔️ |
| 61 | refint | ✔️ | ✔️ |
| 62 | sslinfo | ✔️ | ✔️ |
| 63 | tablefunc | ✔️ | ✔️ |
| 64 | test-decoding | ✔️ | |
| 65 | tsm_system_rows | ✔️ | ✔️ |
| 66 | tsm_system_time | ✔️ | ✔️ |
| 67 | unaccent | ✔️ | ✔️ |
| 68 | uuid-ossp | ✔️ | ✔️ |
| 69 | wal2json | ✔️ |
Above information was compared on September 2022
See the following links for more information: