일반적으로 AlloyDB 클러스터의 기본 인스턴스에 있는 데이터베이스에 연결하고 LOAD 또는 CREATE EXTENSION 명령어를 입력하여 확장 프로그램을 사용 설정합니다.
하지만 일부 확장 프로그램의 경우 LOAD 또는 CREATE EXTENSION 명령어를 사용하여 확장 프로그램을 사용 설정하기 전에 하나 이상의 데이터베이스 플래그를 설정해야 합니다. 이러한 플래그는 확장 프로그램을 사용하려는 AlloyDB 인스턴스에서 설정합니다. 이 인스턴스가 기본 인스턴스인지 읽기 풀 인스턴스인지는 중요하지 않습니다.
[[["이해하기 쉬움","easyToUnderstand","thumb-up"],["문제가 해결됨","solvedMyProblem","thumb-up"],["기타","otherUp","thumb-up"]],[["이해하기 어려움","hardToUnderstand","thumb-down"],["잘못된 정보 또는 샘플 코드","incorrectInformationOrSampleCode","thumb-down"],["필요한 정보/샘플이 없음","missingTheInformationSamplesINeed","thumb-down"],["번역 문제","translationIssue","thumb-down"],["기타","otherDown","thumb-down"]],["최종 업데이트: 2025-09-04(UTC)"],[[["\u003cp\u003eAlloyDB extensions are enabled by connecting to a database in the primary instance and using a \u003ccode\u003eLOAD\u003c/code\u003e or \u003ccode\u003eCREATE EXTENSION\u003c/code\u003e command.\u003c/p\u003e\n"],["\u003cp\u003eSome extensions require setting specific database flags on the relevant AlloyDB instance, either primary or read pool, before enabling them.\u003c/p\u003e\n"],["\u003cp\u003eDisabling an extension involves connecting to the primary instance and using the \u003ccode\u003eDROP EXTENSION\u003c/code\u003e command within each relevant database.\u003c/p\u003e\n"],["\u003cp\u003eIf database flags were set for an extension, they must be removed from each instance where the extension was used after disabling the extension.\u003c/p\u003e\n"],["\u003cp\u003eThe necessary IAM roles for enabling or disabling extensions are \u003ccode\u003eroles/alloydb.admin\u003c/code\u003e, \u003ccode\u003eroles/owner\u003c/code\u003e, or \u003ccode\u003eroles/editor\u003c/code\u003e.\u003c/p\u003e\n"]]],[],null,["# Configure database extensions\n\nThis page describes how to enable and disable PostgreSQL extensions in\nAlloyDB.\n\nSee [Supported database extensions](/alloydb/docs/reference/extensions) for the\nlist of the extensions that AlloyDB supports.\n\n\nBefore you begin\n----------------\n\n- The Google Cloud project you are using must have been [enabled to access AlloyDB](/alloydb/docs/project-enable-access).\n- You must have one of these IAM roles in the Google Cloud project you are using:\n - `roles/alloydb.admin` (the AlloyDB Admin predefined IAM role)\n - `roles/owner` (the Owner basic IAM role)\n - `roles/editor` (the Editor basic IAM role)\n\n If you don't have any of these roles, contact your Organization Administrator to request\n access.\n\n\u003cbr /\u003e\n\nEnable an extension\n-------------------\n\nIn general, you enable an extension by connecting to a database in\nan AlloyDB cluster's primary instance and entering a `LOAD` or\n`CREATE EXTENSION` command.\n\nHowever, some extensions require you to set one or more database flags\n**before** you can use the `LOAD` or `CREATE EXTENSION` command to enable the\nextension. You set these flags on the AlloyDB instance where you\nwant to use the extension, whether that instance is the primary instance or read\npool instance.\n\n### Procedure\n\n1. If required, [set the appropriate database flags](/alloydb/docs/instance-configure-database-flags) on the instance where you\n want to use the extension, either the primary instance or a read pool instance.\n\n The [list of supported extensions](/alloydb/docs/reference/extensions)\n shows which extensions require this step and states which database flags you\n must set.\n2. Connect a `psql` client to the cluster's primary instance, as\n described in [Connect a psql client to\n an instance](/alloydb/docs/connect-psql).\n\n | **Note:** You must connect to the primary instance even if you are enabling the extension on a read pool instance.\n3. At the `psql` command prompt, connect to the database and create the extension: \n\n ```sql\n \\c \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-n\"\u003eDB_NAME\u003c/span\u003e\u003c/var\u003e\n CREATE EXTENSION IF NOT EXISTS \u003cvar translate=\"no\"\u003e\u003cspan class=\"devsite-syntax-n\"\u003eEXTENSION_NAME\u003c/span\u003e\u003c/var\u003e;\n ```\n | **Note:** To create the [auto_explain](https://www.postgresql.org/docs/16/auto-explain.html) extension, use the \\`LOAD\\` command.\n4. If desired, repeat the previous step to connect to other databases and create the extension in each of them.\n\nDisable an extension\n--------------------\n\nYou disable an extension by reversing the procedure used to enable it.\n\n1. Connect a `psql` client to the cluster's primary instance, as\n described in [Connect a psql client to\n an instance](/alloydb/docs/connect-psql).\n\n | **Note:** You must connect to the primary instance even if you are disabling an extension that is only being used on read pool instances.\n2. At the `psql` command prompt, connect to the database that has the extension enabled and drop the extension: \n\n ```sql\n \\c DB_NAME\n DROP EXTENSION EXTENSION_NAME;\n ```\n3. Repeat the previous step to connect to any other databases that have the extension enabled and drop the extension in each of them.\n4. If the extension required that database flags be set on the instances\n where it was used, remove the flags from each of the instances where it was\n used by following the instructions in\n [Configure an instance's\n database flags](/alloydb/docs/instance-configure-database-flags).\n\n The [list of supported extensions](/alloydb/docs/reference/extensions)\n shows which extensions require setting of database flags and identifies\n which flags."]]
