new usage of MaxExactCount

This commit is contained in:
Marc Delisle
2006-01-29 13:30:08 +00:00
parent 32cca60124
commit 90e12034f3

View File

@@ -1767,11 +1767,18 @@ GRANT SELECT, INSERT, UPDATE, DELETE ON <pma_db>.* TO 'pma'@'localhost';
<dt><b><a name="cfg_MaxExactCount"></a>$cfg[MaxExactCount] </b>integer</dt>
<dd>
Determines for how large tables phpMyAdmin should get exact row count by
<code>SELECT COUNT</code>. If approximate row count is smaller than this
value, <code>SELECT COUNT</code> will be used, otherwise only value
returned by <code>SHOW TABLE STATUS</code>. This has currently an impact
only on InnoDB tables.
<ul>
<li>For InnoDB tables, determines for how large tables phpMyAdmin
should get the exact row count using <code>SELECT COUNT</code>.
If the approximate row count as returned by
<code>SHOW TABLE STATUS</code> is smaller than this value,
<code>SELECT COUNT</code> will be used, otherwise the approximate
count will be used.
</li>
<li>For VIEWs, since obtaining the exact count could have an
impact on performance, this value is the maximum to be displayed.
</li>
</ul>
</dd>
<dt><a name="wysiwyg"></a>