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doc-exports/docs/dws/dev/dws_04_0829.html
luhuayi 177cd61a57 DWS DEVG 910.211 version
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: luhuayi <luhuayi@huawei.com>
Co-committed-by: luhuayi <luhuayi@huawei.com>
2025-05-05 07:44:03 +00:00

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<a name="EN-US_TOPIC_0000001811610221"></a><a name="EN-US_TOPIC_0000001811610221"></a>
<h1 class="topictitle1">PGXC_TOTAL_SCHEMA_INFO_ANALYZE</h1>
<div id="body0000001127119187"><p id="EN-US_TOPIC_0000001811610221__p173587536319"><strong id="EN-US_TOPIC_0000001811610221__b1896016421370">PGXC_TOTAL_SCHEMA_INFO_ANALYZE</strong> displays the overall schema space information of the cluster, including the total cluster space, average space of instances, skew ratio, maximum space of a single instance, minimum space of a single instance, and names of the instances with the maximum space and minimum space. It provides visibility into the schema space usage of the entire cluster. This view can be queried only on CNs.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001811610221__table1587313721120" frame="border" border="1" rules="all"><caption><b>Table 1 </b>PGXC_TOTAL_SCHEMA_INFO_ANALYZE columns</caption><thead align="left"><tr id="EN-US_TOPIC_0000001811610221__row587317101113"><th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.4.1.1"><p id="EN-US_TOPIC_0000001811610221__afbe7fe3528aa4d23a961fb047a3be366"><strong id="EN-US_TOPIC_0000001811610221__b10419987243847">Column</strong></p>
</th>
<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.4.1.2"><p id="EN-US_TOPIC_0000001811610221__a32766e1c79fc45b5a8bc604d73582551">Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="33.33333333333333%" id="mcps1.3.2.2.4.1.3"><p id="EN-US_TOPIC_0000001811610221__a37865a77d1a4411998bbb8d0892f7e33">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001811610221__row787497121111"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001811610221__p432671020129">schemaname</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001811610221__p143261210131217">Text</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001811610221__p15326171012129">Schema name.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001811610221__row118755711117"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001811610221__p432651018120">databasename</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001811610221__p1432671091214">Text</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001811610221__p03261910121211">Database name.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001811610221__row11877778116"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001811610221__p1032761014125">nodegroup</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001811610221__p15327610161211">Text</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001811610221__p7327121061212">Node group name.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001811610221__row1878379117"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001811610221__p1632715104128">total_value</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001811610221__p1327510111217">Bigint</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001811610221__p153281106123">Total cluster space in this schema.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001811610221__row115153018129"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001811610221__p1328191020127">avg_value</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001811610221__p532811018124">Bigint</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001811610221__p11328810121211">Average space per instance in this schema.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001811610221__row15559202516135"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001811610221__p855932517138">skew_percent</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001811610221__p5559182541314">Integer</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001811610221__p655962561312">Skew ratio.</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001811610221__row182701820121317"><td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.1 "><p id="EN-US_TOPIC_0000001811610221__p22701207131">extend_info</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.2 "><p id="EN-US_TOPIC_0000001811610221__p927082017130">Text</p>
</td>
<td class="cellrowborder" valign="top" width="33.33333333333333%" headers="mcps1.3.2.2.4.1.3 "><p id="EN-US_TOPIC_0000001811610221__p52704201130">The extended information includes the maximum and minimum space values for a single instance, as well as the names of the instances with the maximum and minimum space values.</p>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_04_0639.html">System Views</a></div>
</div>
</div>