{"Entry":{"collection":"sql","key":"alter-tablespace","name":"ALTER TABLESPACE","aliases":["altertablespace"],"metadata":{"aliases":["altertablespace"],"changed_in":["9.0","9.5","14"],"changes":[{"from":"7.4","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":[],"removed":[]},"status":"added","synopsis":null,"to":"8.0"},{"from":"8.0","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["description","parameters"],"removed":[]},"status":"changed","synopsis":null,"to":"8.1"},{"from":"8.4","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["parameters"],"removed":[]},"status":"changed","synopsis":{"added":["ALTER TABLESPACE name RENAME TO new_name","ALTER TABLESPACE name OWNER TO new_owner","ALTER TABLESPACE name SET ( tablespace_option = value [, ... ] )","ALTER TABLESPACE name RESET ( tablespace_option [, ... ] )"],"removed":["ALTER TABLESPACE name RENAME TO newname","ALTER TABLESPACE name OWNER TO newowner"]},"to":"9.0"},{"from":"9.2","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["parameters"],"removed":[]},"status":"changed","synopsis":null,"to":"9.3"},{"from":"9.3","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["description"],"removed":[]},"status":"changed","synopsis":null,"to":"9.4"},{"from":"9.4","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":[],"removed":[]},"status":"changed","synopsis":{"added":["ALTER TABLESPACE name OWNER TO { new_owner | CURRENT_USER | SESSION_USER }"],"removed":[]},"to":"9.5"},{"from":"9.5","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["parameters"],"removed":[]},"status":"changed","synopsis":null,"to":"9.6"},{"from":"12","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["parameters"],"removed":[]},"status":"changed","synopsis":null,"to":"13"},{"from":"13","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":[],"removed":[]},"status":"changed","synopsis":{"added":["ALTER TABLESPACE name OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER }"],"removed":[]},"to":"14"},{"from":"15","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["description"],"removed":[]},"status":"changed","synopsis":null,"to":"16"},{"from":"17","purpose_changed":false,"renamed":null,"sections":{"added":[],"changed":["parameters"],"removed":[]},"status":"changed","synopsis":null,"to":"18"}],"content_hash":"bdcb9eac6de5de61aa96c93392ba84c773aae747f6a1055542fac489a8392e94","editorial":{},"first_version":"8.0","group":"schema","imported_at":"2026-09-30T17:43:37.872847+08:00","last_version":"20","name":"ALTER TABLESPACE","object":"TABLESPACE","position":4007,"present_in":["8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6","10","11","12","13","14","15","16","17","18","19","20"],"purpose":"change the definition of a tablespace","purpose_zh":"","related":["create-tablespace","drop-tablespace"],"slug":"alter-tablespace","source_rev":"a709ab85","synopsis":"ALTER TABLESPACE name RENAME TO new_name\nALTER TABLESPACE name OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER }\nALTER TABLESPACE name SET ( tablespace_option = value [, ... ] )\nALTER TABLESPACE name RESET ( tablespace_option [, ... ] )","verb":"ALTER"}},"Definition":{"Collection":"sql","Key":"alter-tablespace","SourceDatabase":"center","Version":"18","SourceTable":"sqlcmd","SourceKey":"alter-tablespace","SourceRevision":"a709ab85","Facts":{"anchor":"SQL-ALTERTABLESPACE","file":"sql-altertablespace.html","lang":"en","name":"ALTER TABLESPACE","purpose":"change the definition of a tablespace","purpose_zh":"","related":["create-tablespace","drop-tablespace"],"sections":[{"html":"\u003cp\u003e\u003ccode class=\"command\"\u003eALTER TABLESPACE\u003c/code\u003e can be used to change the definition of a tablespace.\u003c/p\u003e\u003cp\u003eYou must own the tablespace to change the definition of a tablespace. To alter the owner, you must also be able to \u003ccode class=\"literal\"\u003eSET ROLE\u003c/code\u003e to the new owning role. (Note that superusers have these privileges automatically.)\u003c/p\u003e","key":"description","title":"Description"},{"html":"\u003cdiv class=\"variablelist\"\u003e\u003cdl class=\"variablelist\"\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003eThe name of an existing tablespace.\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003cem class=\"replaceable\"\u003e\u003ccode\u003enew_name\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003eThe new name of the tablespace. The new name cannot begin with \u003ccode class=\"literal\"\u003epg_\u003c/code\u003e, as such names are reserved for system tablespaces.\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003cem class=\"replaceable\"\u003e\u003ccode\u003enew_owner\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003eThe new owner of the tablespace.\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003cem class=\"replaceable\"\u003e\u003ccode\u003etablespace_option\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003eA tablespace parameter to be set or reset. Currently, the only available parameters are \u003ccode class=\"varname\"\u003eseq_page_cost\u003c/code\u003e, \u003ccode class=\"varname\"\u003erandom_page_cost\u003c/code\u003e, \u003ccode class=\"varname\"\u003eeffective_io_concurrency\u003c/code\u003e and \u003ccode class=\"varname\"\u003emaintenance_io_concurrency\u003c/code\u003e. Setting these values for a particular tablespace will override the planner's usual estimate of the cost of reading pages from tables in that tablespace, and how many concurrent I/Os are issued, as established by the configuration parameters of the same name (see \u003ca href=\"/docs/18/runtime-config-query.html#GUC-SEQ-PAGE-COST\"\u003eseq_page_cost\u003c/a\u003e, \u003ca href=\"/docs/18/runtime-config-query.html#GUC-RANDOM-PAGE-COST\"\u003erandom_page_cost\u003c/a\u003e, \u003ca href=\"/docs/18/runtime-config-resource.html#GUC-EFFECTIVE-IO-CONCURRENCY\"\u003eeffective_io_concurrency\u003c/a\u003e, \u003ca href=\"/docs/18/runtime-config-resource.html#GUC-MAINTENANCE-IO-CONCURRENCY\"\u003emaintenance_io_concurrency\u003c/a\u003e). This may be useful if one tablespace is located on a disk which is faster or slower than the remainder of the I/O subsystem.\u003c/p\u003e\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e","key":"parameters","title":"Parameters"},{"html":"\u003cp\u003eRename tablespace \u003ccode class=\"literal\"\u003eindex_space\u003c/code\u003e to \u003ccode class=\"literal\"\u003efast_raid\u003c/code\u003e:\u003c/p\u003e\u003cpre class=\"programlisting\"\u003eALTER TABLESPACE index_space RENAME TO fast_raid;\n\u003c/pre\u003e\u003cp\u003eChange the owner of tablespace \u003ccode class=\"literal\"\u003eindex_space\u003c/code\u003e:\u003c/p\u003e\u003cpre class=\"programlisting\"\u003eALTER TABLESPACE index_space OWNER TO mary;\n\u003c/pre\u003e","key":"examples","title":"Examples"},{"html":"\u003cp\u003eThere is no \u003ccode class=\"command\"\u003eALTER TABLESPACE\u003c/code\u003e statement in the SQL standard.\u003c/p\u003e","key":"compatibility","title":"Compatibility"},{"html":"\u003cspan class=\"simplelist\"\u003e\u003ca href=\"/wiki/sql/create-tablespace/?v=18\" title=\"CREATE TABLESPACE\"\u003e\u003cspan class=\"refentrytitle\"\u003eCREATE TABLESPACE\u003c/span\u003e\u003c/a\u003e, \u003ca href=\"/wiki/sql/drop-tablespace/?v=18\" title=\"DROP TABLESPACE\"\u003e\u003cspan class=\"refentrytitle\"\u003eDROP TABLESPACE\u003c/span\u003e\u003c/a\u003e\u003c/span\u003e","key":"see_also","title":"See Also"}],"sections_same_as":"","slug":"18","synopsis_html":"ALTER TABLESPACE \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e RENAME TO \u003cem class=\"replaceable\"\u003e\u003ccode\u003enew_name\u003c/code\u003e\u003c/em\u003e\nALTER TABLESPACE \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e OWNER TO { \u003cem class=\"replaceable\"\u003e\u003ccode\u003enew_owner\u003c/code\u003e\u003c/em\u003e | CURRENT_ROLE | CURRENT_USER | SESSION_USER }\nALTER TABLESPACE \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e SET ( \u003cem class=\"replaceable\"\u003e\u003ccode\u003etablespace_option\u003c/code\u003e\u003c/em\u003e = \u003cem class=\"replaceable\"\u003e\u003ccode\u003evalue\u003c/code\u003e\u003c/em\u003e [, ... ] )\nALTER TABLESPACE \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e RESET ( \u003cem class=\"replaceable\"\u003e\u003ccode\u003etablespace_option\u003c/code\u003e\u003c/em\u003e [, ... ] )","synopsis_text":"ALTER TABLESPACE name RENAME TO new_name\nALTER TABLESPACE name OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER }\nALTER TABLESPACE name SET ( tablespace_option = value [, ... ] )\nALTER TABLESPACE name RESET ( tablespace_option [, ... ] )"},"ManualEvidence":{},"MeasuredEvidence":{}},"Text":{"Collection":"sql","Key":"alter-tablespace","SourceDatabase":"pgweb","Version":"18","Locale":"zh-Hans","Title":"ALTER TABLESPACE","Summary":"更改一个表空间的定义","BodyHTML":"\u003cpre\u003eALTER TABLESPACE name RENAME TO new_name\nALTER TABLESPACE name OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER }\nALTER TABLESPACE name SET ( tablespace_option = value [, ... ] )\nALTER TABLESPACE name RESET ( tablespace_option [, ... ] )\u003c/pre\u003e\u003csection\u003e\u003ch2\u003e描述\u003c/h2\u003e\u003cp\u003e\u003ccode\u003eALTER TABLESPACE\u003c/code\u003e可以用于更改表空间的定义。\u003c/p\u003e\u003cp\u003e要更改表空间的定义，你必须拥有该表空间。要修改拥有者，你还必须能够对新拥有者角色执行\u003ccode\u003eSET ROLE\u003c/code\u003e。（注意，超级用户自动具有这些权限。）\u003c/p\u003e\u003c/section\u003e\u003csection\u003e\u003ch2\u003e参数\u003c/h2\u003e\u003cdiv\u003e\u003cdl\u003e\u003cdt\u003e\u003cspan\u003e\u003cem\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e现有表空间的名称。\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan\u003e\u003cem\u003e\u003ccode\u003enew_name\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e该表空间的新名称。新名称不能以\u003ccode\u003epg_\u003c/code\u003e开头，因为这类名称保留给系统表空间使用。\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan\u003e\u003cem\u003e\u003ccode\u003enew_owner\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e该表空间的新拥有者。\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan\u003e\u003cem\u003e\u003ccode\u003etablespace_option\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e要设置或者重置的表空间参数。当前，唯一可用的参数是 \u003ccode\u003eseq_page_cost\u003c/code\u003e、\u003ccode\u003erandom_page_cost\u003c/code\u003e、\u003ccode\u003eeffective_io_concurrency\u003c/code\u003e以及\u003ccode\u003emaintenance_io_concurrency\u003c/code\u003e。为一个特定表空间设定这些值将覆盖由同名配置参数确定的规划器对该表空间中表页读取的常规代价估计，以及会发起的并发 I/O 数量（见\u003ca href=\"/docs/18/runtime-config-query.html#GUC-SEQ-PAGE-COST\" rel=\"nofollow\"\u003eseq_page_cost\u003c/a\u003e、\u003ca href=\"/docs/18/runtime-config-query.html#GUC-RANDOM-PAGE-COST\" rel=\"nofollow\"\u003erandom_page_cost\u003c/a\u003e、\u003ca href=\"/docs/18/runtime-config-resource.html#GUC-EFFECTIVE-IO-CONCURRENCY\" rel=\"nofollow\"\u003eeffective_io_concurrency\u003c/a\u003e、\u003ca href=\"/docs/18/runtime-config-resource.html#GUC-MAINTENANCE-IO-CONCURRENCY\" rel=\"nofollow\"\u003emaintenance_io_concurrency\u003c/a\u003e）。如果一个表空间位于一个比 I/O 子系统其余部分更慢或者更快的磁盘上，这些参数就能发挥作用。\u003c/p\u003e\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e\u003c/section\u003e\u003csection\u003e\u003ch2\u003e示例\u003c/h2\u003e\u003cp\u003e将表空间\u003ccode\u003eindex_space\u003c/code\u003e重命名为\u003ccode\u003efast_raid\u003c/code\u003e：\u003c/p\u003e\u003cpre\u003eALTER TABLESPACE index_space RENAME TO fast_raid;\n\u003c/pre\u003e\u003cp\u003e更改表空间\u003ccode\u003eindex_space\u003c/code\u003e的拥有者：\u003c/p\u003e\u003cpre\u003eALTER TABLESPACE index_space OWNER TO mary;\n\u003c/pre\u003e\u003c/section\u003e\u003csection\u003e\u003ch2\u003e兼容性\u003c/h2\u003e\u003cp\u003e在 SQL 标准中没有 \u003ccode\u003eALTER TABLESPACE\u003c/code\u003e语句。\u003c/p\u003e\u003c/section\u003e\u003csection\u003e\u003ch2\u003e另见\u003c/h2\u003e\u003cspan\u003e\u003ca href=\"/wiki/sql/create-tablespace/?v=18\" title=\"CREATE TABLESPACE\" rel=\"nofollow\"\u003e\u003cspan\u003eCREATE TABLESPACE\u003c/span\u003e\u003c/a\u003e, \u003ca href=\"/wiki/sql/drop-tablespace/?v=18\" title=\"DROP TABLESPACE\" rel=\"nofollow\"\u003e\u003cspan\u003eDROP TABLESPACE\u003c/span\u003e\u003c/a\u003e\u003c/span\u003e\u003c/section\u003e","SourceRevision":"1b5ca64c","ContentHash":"c9fbe67e02d9e98a8022de1e547d46d49c74ea84bc4f22b74764bee24142cc0a","Payload":{"purpose_zh":"更改一个表空间的定义","sections":[{"html":"\u003cp\u003e\u003ccode class=\"command\"\u003eALTER TABLESPACE\u003c/code\u003e可以用于更改表空间的定义。\u003c/p\u003e\u003cp\u003e要更改表空间的定义，你必须拥有该表空间。要修改拥有者，你还必须能够对新拥有者角色执行\u003ccode class=\"literal\"\u003eSET ROLE\u003c/code\u003e。（注意，超级用户自动具有这些权限。）\u003c/p\u003e","key":"description","title":"描述"},{"html":"\u003cdiv class=\"variablelist\"\u003e\u003cdl class=\"variablelist\"\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e现有表空间的名称。\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003cem class=\"replaceable\"\u003e\u003ccode\u003enew_name\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e该表空间的新名称。新名称不能以\u003ccode class=\"literal\"\u003epg_\u003c/code\u003e开头，因为这类名称保留给系统表空间使用。\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003cem class=\"replaceable\"\u003e\u003ccode\u003enew_owner\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e该表空间的新拥有者。\u003c/p\u003e\u003c/dd\u003e\u003cdt\u003e\u003cspan class=\"term\"\u003e\u003cem class=\"replaceable\"\u003e\u003ccode\u003etablespace_option\u003c/code\u003e\u003c/em\u003e\u003c/span\u003e\u003c/dt\u003e\u003cdd\u003e\u003cp\u003e要设置或者重置的表空间参数。当前，唯一可用的参数是 \u003ccode class=\"varname\"\u003eseq_page_cost\u003c/code\u003e、\u003ccode class=\"varname\"\u003erandom_page_cost\u003c/code\u003e、\u003ccode class=\"varname\"\u003eeffective_io_concurrency\u003c/code\u003e以及\u003ccode class=\"varname\"\u003emaintenance_io_concurrency\u003c/code\u003e。为一个特定表空间设定这些值将覆盖由同名配置参数确定的规划器对该表空间中表页读取的常规代价估计，以及会发起的并发 I/O 数量（见\u003ca href=\"/docs/18/runtime-config-query.html#GUC-SEQ-PAGE-COST\"\u003eseq_page_cost\u003c/a\u003e、\u003ca href=\"/docs/18/runtime-config-query.html#GUC-RANDOM-PAGE-COST\"\u003erandom_page_cost\u003c/a\u003e、\u003ca href=\"/docs/18/runtime-config-resource.html#GUC-EFFECTIVE-IO-CONCURRENCY\"\u003eeffective_io_concurrency\u003c/a\u003e、\u003ca href=\"/docs/18/runtime-config-resource.html#GUC-MAINTENANCE-IO-CONCURRENCY\"\u003emaintenance_io_concurrency\u003c/a\u003e）。如果一个表空间位于一个比 I/O 子系统其余部分更慢或者更快的磁盘上，这些参数就能发挥作用。\u003c/p\u003e\u003c/dd\u003e\u003c/dl\u003e\u003c/div\u003e","key":"parameters","title":"参数"},{"html":"\u003cp\u003e将表空间\u003ccode class=\"literal\"\u003eindex_space\u003c/code\u003e重命名为\u003ccode class=\"literal\"\u003efast_raid\u003c/code\u003e：\u003c/p\u003e\u003cpre class=\"programlisting\"\u003eALTER TABLESPACE index_space RENAME TO fast_raid;\n\u003c/pre\u003e\u003cp\u003e更改表空间\u003ccode class=\"literal\"\u003eindex_space\u003c/code\u003e的拥有者：\u003c/p\u003e\u003cpre class=\"programlisting\"\u003eALTER TABLESPACE index_space OWNER TO mary;\n\u003c/pre\u003e","key":"examples","title":"示例"},{"html":"\u003cp\u003e在 SQL 标准中没有 \u003ccode class=\"command\"\u003eALTER TABLESPACE\u003c/code\u003e语句。\u003c/p\u003e","key":"compatibility","title":"兼容性"},{"html":"\u003cspan class=\"simplelist\"\u003e\u003ca href=\"/wiki/sql/create-tablespace/?v=18\" title=\"CREATE TABLESPACE\"\u003e\u003cspan class=\"refentrytitle\"\u003eCREATE TABLESPACE\u003c/span\u003e\u003c/a\u003e, \u003ca href=\"/wiki/sql/drop-tablespace/?v=18\" title=\"DROP TABLESPACE\"\u003e\u003cspan class=\"refentrytitle\"\u003eDROP TABLESPACE\u003c/span\u003e\u003c/a\u003e\u003c/span\u003e","key":"see_also","title":"另见"}],"sections_same_as":"","synopsis_html":"ALTER TABLESPACE \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e RENAME TO \u003cem class=\"replaceable\"\u003e\u003ccode\u003enew_name\u003c/code\u003e\u003c/em\u003e\nALTER TABLESPACE \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e OWNER TO { \u003cem class=\"replaceable\"\u003e\u003ccode\u003enew_owner\u003c/code\u003e\u003c/em\u003e | CURRENT_ROLE | CURRENT_USER | SESSION_USER }\nALTER TABLESPACE \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e SET ( \u003cem class=\"replaceable\"\u003e\u003ccode\u003etablespace_option\u003c/code\u003e\u003c/em\u003e = \u003cem class=\"replaceable\"\u003e\u003ccode\u003evalue\u003c/code\u003e\u003c/em\u003e [, ... ] )\nALTER TABLESPACE \u003cem class=\"replaceable\"\u003e\u003ccode\u003ename\u003c/code\u003e\u003c/em\u003e RESET ( \u003cem class=\"replaceable\"\u003e\u003ccode\u003etablespace_option\u003c/code\u003e\u003c/em\u003e [, ... ] )","synopsis_text":"ALTER TABLESPACE name RENAME TO new_name\nALTER TABLESPACE name OWNER TO { new_owner | CURRENT_ROLE | CURRENT_USER | SESSION_USER }\nALTER TABLESPACE name SET ( tablespace_option = value [, ... ] )\nALTER TABLESPACE name RESET ( tablespace_option [, ... ] )"}},"RequestedLocale":"zh-Hans","Fallback":false,"Versions":["10","11","12","13","14","15","16","17","18","19","20","8.0","8.1","8.2","8.3","8.4","9.0","9.1","9.2","9.3","9.4","9.5","9.6"],"Locales":["en","zh-Hans"],"Signatures":null,"Spellings":null,"SQLState":null,"Evidence":null}