pg如何安裝外掛程式

2021-10-01 03:14:25 字數 1652 閱讀 9894

以自帶的外掛程式,bloom外掛程式為例

之前裝過了,現在嘗試刪除

postgres=# drop extension bloom;

psql: error: cannot drop extension bloom because other objects depend on it

detail: index idxbloom_t2 depends on operator class int4_ops for access method bloom

index idx_t1 depends on operator class int4_ops for access method bloom

hint: use drop … cascade to drop the dependent objects too.

以上說明bloom被引用了,可用用cascade的模式刪除

postgres=# drop extension bloom cascade;

psql: notice: drop cascades to 2 other objects

detail: drop cascades to index idxbloom_t2

drop cascades to index idx_t1

drop extension

接下來安裝比較簡單

postgres=# create extension

adminpack btree_gist dict_xsyn hstore isn pageinspect pg_prewarm pg_visibility tablefunc unaccent

amcheck citext earthdistance insert_username lo pg_buffercache pgrowlocks postgres_fdw tcn

autoinc cube file_fdw intagg ltree pgcrypto pg_stat_statements refint tsm_system_rows

btree_gin dict_int fuzzystrmatch intarray moddatetime pg_freespacemap pgstattuple seg tsm_system_time

直接create extension bloom即可

postgres=# create extension bloom;

create extension

可以查詢當前用了哪些外掛程式

postgres-# \dx

list of installed extensions

name|version|schema|description

bloom|1.0|public|bloom access method - signature file based index

dblink|1.2|public|connect to other postgresql databases from within a database

pg_trgm|1.4|public|text similarity measurement and index searching based on trigrams

plpgsql|1.0|pg_catalog|pl/pgsql procedural language

(4 rows)

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