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sets the per-column statistics-gathering target for subsequent
<xref linkend="sql-analyze" endterm="sql-analyze-title"> operations.
The target can be set in the range 0 to 1000; alternatively, set it
- to -1 to revert to using the system default statistics target.
+ to -1 to revert to using the system default statistics
+ target. For more information on the use of statistics by the
+ <productname>PostgreSQL</productname> query planner, refer to
+ <xref linkend="planner-stats">.
</para>
</listitem>
</varlistentry>
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<term><replaceable class="PARAMETER">data_type</replaceable></term>
<listitem>
<para>
- The data type of the column. This may include array specifiers.
+ The data type of the column. This may include array
+ specifiers. For more information on the data types included with
+ <productname>PostgreSQL</productname>, refer to <xref
+ linkend="datatype">.
</para>
</listitem>
</varlistentry>
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<Chapter Id="runtime">
<term><varname>default_statistics_target</varname> (<type>integer</type>)</term>
<listitem>
<para>
- Sets the default statistics target for table columns that have not
- had a column-specific target set via <command>ALTER TABLE SET
- STATISTICS</>. Larger values increase the time needed to do
- <command>ANALYZE</>, but may improve the quality of the planner's
- estimates. The default is 10.
+ Sets the default statistics target for table columns that have
+ not had a column-specific target set via <command>ALTER TABLE
+ SET STATISTICS</>. Larger values increase the time needed to
+ do <command>ANALYZE</>, but may improve the quality of the
+ planner's estimates. The default is 10. For more information
+ on the use of statistics by the <productname>PostgreSQL</>
+ query planner, refer to <xref linkend="planner-stats">.
</para>
</listitem>
</varlistentry>