Wo finden Sie das Citext-Modul in Postgres 9.3 auf Ubuntu 14.04?

Ich versuche also, citext zu verwenden, aber es scheint MIA von Ubuntu 14.04 Postgres Install zu sein. Wo kann man dieses mythische Biest namens citext für postgresql 9.3 finden?

project_test=> CREATE TABLE "customers_addresstype" (
project_test(>     "id" serial NOT NULL PRIMARY KEY,
project_test(>     "customer_id" integer NOT NULL REFERENCES "customers_customer" ("id") DEFERRABLE INITIALLY DEFERRED,
project_test(>     "display" citext NOT NULL,
project_test(>     UNIQUE ("customer_id", "display")
project_test(> )
project_test-> ;
ERROR:  type "citext" does not exist
LINE 4:     "display" citext NOT NULL,
                      ^
project_test=> CREATE EXTENSION IF NOT EXISTS citext WITH SCHEMA ext;
ERROR:  could not open extension control file "/usr/share/postgresql/9.3/extension/citext.control": No such file or directory


$ ls /usr/share/postgresql/9.3/extension
plpgsql--1.0.sql  plpgsql.control  plpgsql--unpackaged--1.0.sql

$ ls /usr/lib/postgresql/9.3/lib
ascii_and_mic.so     euc_cn_and_mic.so   latin2_and_win1250.so  pgxs               utf8_and_big5.so      utf8_and_euc_jp.so   utf8_and_gbk.so        utf8_and_sjis2004.so
cyrillic_and_mic.so  euc_jp_and_sjis.so  latin_and_mic.so       plpgsql.so         utf8_and_cyrillic.so  utf8_and_euc_kr.so   utf8_and_iso8859_1.so  utf8_and_sjis.so
dict_snowball.so     euc_kr_and_mic.so   libpqwalreceiver.so    tsearch2.so        utf8_and_euc2004.so   utf8_and_euc_tw.so   utf8_and_iso8859.so    utf8_and_uhc.so
euc2004_sjis2004.so  euc_tw_and_big5.so  pg_upgrade_support.so  utf8_and_ascii.so  utf8_and_euc_cn.so    utf8_and_gb18030.so  utf8_and_johab.so      utf8_and_win.so

Ich sehe nicht im Repository und locate -i citextfinde nichts.

Es stellte sich heraus, dass die Antwort auf Stapelüberlauf war. Und Daniel hat es genau zu der Zeit kommentiert, als ich es installiert habe.

sudo apt-get install postgresql-contrib-9.3

https://stackoverflow.com/a/22833812/147562