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><H1
><A
NAME="SQL-CREATETABLESPACE"
></A
>CREATE TABLESPACE</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN49432"
></A
><H2
>Name</H2
>CREATE TABLESPACE -- define a new tablespace</DIV
><A
NAME="AEN49435"
></A
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN49437"
></A
><H2
>Synopsis</H2
><PRE
CLASS="SYNOPSIS"
>CREATE TABLESPACE <TT
CLASS="REPLACEABLE"
><I
>tablespacename</I
></TT
> [ OWNER <TT
CLASS="REPLACEABLE"
><I
>username</I
></TT
> ] LOCATION '<TT
CLASS="REPLACEABLE"
><I
>directory</I
></TT
>'</PRE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN49442"
></A
><H2
>Description</H2
><P
> <TT
CLASS="COMMAND"
>CREATE TABLESPACE</TT
> registers a new cluster-wide
tablespace. The tablespace name must be distinct from the name of any
existing tablespace in the database cluster.
</P
><P
> A tablespace allows superusers to define an alternative location on
the file system where the data files containing database objects
(such as tables and indexes) may reside.
</P
><P
> A user with appropriate privileges can pass
<TT
CLASS="REPLACEABLE"
><I
>tablespacename</I
></TT
> to
<TT
CLASS="COMMAND"
>CREATE DATABASE</TT
>, <TT
CLASS="COMMAND"
>CREATE TABLE</TT
>,
<TT
CLASS="COMMAND"
>CREATE INDEX</TT
> or <TT
CLASS="COMMAND"
>ADD CONSTRAINT</TT
> to have the data
files for these objects stored within the specified tablespace.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN49453"
></A
><H2
>Parameters</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
><TT
CLASS="REPLACEABLE"
><I
>tablespacename</I
></TT
></DT
><DD
><P
> The name of a tablespace to be created. The name cannot
begin with <TT
CLASS="LITERAL"
>pg_</TT
>, as such names
are reserved for system tablespaces.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>username</I
></TT
></DT
><DD
><P
> The name of the user who will own the tablespace. If omitted,
defaults to the user executing the command. Only superusers
may create tablespaces, but they can assign ownership of tablespaces
to non-superusers.
</P
></DD
><DT
><TT
CLASS="REPLACEABLE"
><I
>directory</I
></TT
></DT
><DD
><P
> The directory that will be used for the tablespace. The directory
must be empty and must be owned by the
<SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> system user. The directory must be
specified by an absolute path name.
</P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN49473"
></A
><H2
>Notes</H2
><P
> Tablespaces are only supported on systems that support symbolic links.
</P
><P
> <TT
CLASS="COMMAND"
>CREATE TABLESPACE</TT
> cannot be executed inside a transaction
block.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN49478"
></A
><H2
>Examples</H2
><P
> Create a tablespace <TT
CLASS="LITERAL"
>dbspace</TT
> at <TT
CLASS="LITERAL"
>/data/dbs</TT
>:
</P><PRE
CLASS="PROGRAMLISTING"
>CREATE TABLESPACE dbspace LOCATION '/data/dbs';</PRE
><P>
</P
><P
> Create a tablespace <TT
CLASS="LITERAL"
>indexspace</TT
> at <TT
CLASS="LITERAL"
>/data/indexes</TT
>
owned by user <TT
CLASS="LITERAL"
>genevieve</TT
>:
</P><PRE
CLASS="PROGRAMLISTING"
>CREATE TABLESPACE indexspace OWNER genevieve LOCATION '/data/indexes';</PRE
><P>
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN49489"
></A
><H2
>Compatibility</H2
><P
> <TT
CLASS="COMMAND"
>CREATE TABLESPACE</TT
> is a <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
>
extension.
</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN49494"
></A
><H2
>See Also</H2
><A
HREF="sql-createdatabase.html"
><I
>CREATE DATABASE</I
></A
>, <A
HREF="sql-createtable.html"
><I
>CREATE TABLE</I
></A
>, <A
HREF="sql-createindex.html"
><I
>CREATE INDEX</I
></A
>, <A
HREF="sql-droptablespace.html"
><I
>DROP TABLESPACE</I
></A
>, <A
HREF="sql-altertablespace.html"
><I
>ALTER TABLESPACE</I
></A
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