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Lu, Huayi ef0ada5a59 DWS DEV 20240716 version 
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: Lu, Huayi <luhuayi@huawei.com>
Co-committed-by: Lu, Huayi <luhuayi@huawei.com>
2024-11-02 09:07:47 +00:00

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<a name="EN-US_TOPIC_0000001510400901"></a><a name="EN-US_TOPIC_0000001510400901"></a>
<h1 class="topictitle1">Functions for Verifying Residual Files</h1>
<div id="body32001227"><div class="note" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_note15646450102715"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_en-us_topic_0000001494853537_p11746104245120">The pgxc residual file management function only operates on the CN and the current primary DN, and does not verify or clear residual files on the standby DN. Therefore, after the primary DN is cleared, you need to clear residual files on the standby DN or build the standby DN in a timely manner. This prevents residual files on the standby DN from being copied back to the primary DN due to incremental build after a primary/standby switchover.</p>
</div></div>
<div class="section" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_section985219571500"><h4 class="sectiontitle">pg_verify_residualfiles(filepath)</h4><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p283912577500">Description: Verifies whether the file recorded in the parameter specified file is a residual file. This function is an instance-level function and is related to the current database. It can run on any instance.</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p18839205715503">Parameter type: text</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p10839205713508">Return type: bool</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p3839195716503">The following table describes return columns.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_table12841185705012" frame="border" border="1" rules="all"><caption><b>Table 1 </b>pg_verify_residualfiles (filepath) return fields</caption><thead align="left"><tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row08402057105013"><th align="left" class="cellrowborder" valign="top" width="19.09%" id="mcps1.3.2.6.2.4.1.1"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p148391957125018">Column</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="21%" id="mcps1.3.2.6.2.4.1.2"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p198391757105017">Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="59.91%" id="mcps1.3.2.6.2.4.1.3"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p88404578502">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row1584118573508"><td class="cellrowborder" valign="top" width="19.09%" headers="mcps1.3.2.6.2.4.1.1 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p2840757115016">isverified</p>
</td>
<td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.2.6.2.4.1.2 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p18841957165015">bool</p>
</td>
<td class="cellrowborder" valign="top" width="59.91%" headers="mcps1.3.2.6.2.4.1.3 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p1284116577504">Verification completed or not</p>
</td>
</tr>
</tbody>
</table>
</div>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p18411157105013">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_screen4841957125016"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pg_verify_residualfiles</span><span class="p">(</span><span class="s1">'pgrf_20200908160211441546'</span><span class="p">);</span>
<span class="w"> </span><span class="n">isverified</span><span class="w"> </span>
<span class="c1">------------</span>
<span class="w"> </span><span class="n">t</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
<div class="note" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_note11841105717509"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p3841057165014">This function only verifies whether the recorded file is a residual file in the current database. If the recorded file is not in the current database, the verification is not applicable.</p>
</div></div>
</div>
<div class="section" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_section76191617155115"><h4 class="sectiontitle">pg_verify_residualfiles()</h4><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p761118174517">Description: Verifies whether recorded files on all residual file lists of the current instance are residual files. This function is an instance-level function and is related to the current database. It can run on any instance.</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p1761118179516">Parameter type: none</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p2611151745116">Return type: record</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p146129175517">The following table describes return columns.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_table156131317205112" frame="border" border="1" rules="all"><caption><b>Table 2 </b>pg_verify_residualfiles () return fields</caption><thead align="left"><tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row761217170519"><th align="left" class="cellrowborder" valign="top" width="19.09%" id="mcps1.3.3.6.2.4.1.1"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p561281765110">Column</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="21%" id="mcps1.3.3.6.2.4.1.2"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p1261211715118">Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="59.91%" id="mcps1.3.3.6.2.4.1.3"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p661231719517">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row8612517115119"><td class="cellrowborder" valign="top" width="19.09%" headers="mcps1.3.3.6.2.4.1.1 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p06121417195110">result</p>
</td>
<td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.3.6.2.4.1.2 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p18612717195117">bool</p>
</td>
<td class="cellrowborder" valign="top" width="59.91%" headers="mcps1.3.3.6.2.4.1.3 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p461251712519">Verification completed or not</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row206131117155112"><td class="cellrowborder" valign="top" width="19.09%" headers="mcps1.3.3.6.2.4.1.1 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p6612817135112">filepath</p>
</td>
<td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.3.6.2.4.1.2 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p17612191765111">text</p>
</td>
<td class="cellrowborder" valign="top" width="59.91%" headers="mcps1.3.3.6.2.4.1.3 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p7612191716512">Residual file path</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row166131217115119"><td class="cellrowborder" valign="top" width="19.09%" headers="mcps1.3.3.6.2.4.1.1 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p661341765110">notes</p>
</td>
<td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.3.6.2.4.1.2 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p126131717165111">text</p>
</td>
<td class="cellrowborder" valign="top" width="59.91%" headers="mcps1.3.3.6.2.4.1.3 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p96131917185120">Notes</p>
</td>
</tr>
</tbody>
</table>
</div>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p20613131715511">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_screen8613817185119"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pg_verify_residualfiles</span><span class="p">();</span>
<span class="w"> </span><span class="k">result</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">filepath</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">notes</span><span class="w"> </span>
<span class="c1">--------+---------------------------+-------</span>
<span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">pgrf_20200908160211441546</span><span class="w"> </span><span class="o">|</span><span class="w"> </span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
<div class="note" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_note5613121711514"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p19613151720519">This function only verifies whether the recorded file is a residual file in the current database. If the recorded file is not in the current database, the verification is not applicable.</p>
</div></div>
</div>
<div class="section" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_section19309148115117"><h4 class="sectiontitle">pgxc_verify_residualfiles()</h4><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p23061748125116">Description: Unified CN query function of pg_verify_residualfiles() This function is a cluster-level function and is related to the current database. It runs on CNs.</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p43061948115110">Parameter type: none</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p13061048195116">Return type: record</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p133061348195114">The following table describes return columns.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_table1308948175115" frame="border" border="1" rules="all"><caption><b>Table 3 </b>pgxc_verify_residualfiles () return fields</caption><thead align="left"><tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row15307154835113"><th align="left" class="cellrowborder" valign="top" width="19.09%" id="mcps1.3.4.6.2.4.1.1"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p03071548195115">Column</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="21%" id="mcps1.3.4.6.2.4.1.2"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p153079488515">Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="59.91%" id="mcps1.3.4.6.2.4.1.3"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p14307134819512">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row19307184815110"><td class="cellrowborder" valign="top" width="19.09%" headers="mcps1.3.4.6.2.4.1.1 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p173071648175115">nodename</p>
</td>
<td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.4.6.2.4.1.2 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p330711486517">text</p>
</td>
<td class="cellrowborder" valign="top" width="59.91%" headers="mcps1.3.4.6.2.4.1.3 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p1030734805117">Node name</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row1130844810512"><td class="cellrowborder" valign="top" width="19.09%" headers="mcps1.3.4.6.2.4.1.1 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p930713484510">result</p>
</td>
<td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.4.6.2.4.1.2 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p230812487517">bool</p>
</td>
<td class="cellrowborder" valign="top" width="59.91%" headers="mcps1.3.4.6.2.4.1.3 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p130819484513">Verification completed or not</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row14308448125119"><td class="cellrowborder" valign="top" width="19.09%" headers="mcps1.3.4.6.2.4.1.1 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p130816481514">filepath</p>
</td>
<td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.4.6.2.4.1.2 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p530884865119">text</p>
</td>
<td class="cellrowborder" valign="top" width="59.91%" headers="mcps1.3.4.6.2.4.1.3 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p14308748115115">Residual file path</p>
</td>
</tr>
<tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row1830816481512"><td class="cellrowborder" valign="top" width="19.09%" headers="mcps1.3.4.6.2.4.1.1 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p173081248115120">notes</p>
</td>
<td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.4.6.2.4.1.2 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p4308248125111">text</p>
</td>
<td class="cellrowborder" valign="top" width="59.91%" headers="mcps1.3.4.6.2.4.1.3 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p1530824810511">Notes</p>
</td>
</tr>
</tbody>
</table>
</div>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p730914875119">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_screen1130994835113"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span>
<span class="normal">6</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pgxc_verify_residualfiles</span><span class="p">();</span>
<span class="w"> </span><span class="n">nodename</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="k">result</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">filepath</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">notes</span><span class="w"> </span>
<span class="c1">--------------+--------+---------------------------+-------</span>
<span class="w"> </span><span class="n">cn_5001</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">pgrf_20200910170129360401</span><span class="w"> </span><span class="o">|</span><span class="w"> </span>
<span class="w"> </span><span class="n">dn_6001_6002</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">t</span><span class="w"> </span><span class="o">|</span><span class="w"> </span><span class="n">pgrf_20200908160211441546</span><span class="w"> </span><span class="o">|</span><span class="w"> </span>
<span class="p">(</span><span class="mi">2</span><span class="w"> </span><span class="k">rows</span><span class="p">)</span>
</pre></div></td></tr></table></div>
</div>
<div class="note" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_note7309104813518"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p113094484510">This function only verifies whether the recorded file is a residual file in the current database. If the recorded file is not in the current database, the verification is not applicable.</p>
</div></div>
</div>
<div class="section" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_section946334410514"><h4 class="sectiontitle">pg_is_residualfiles(residualfile)</h4><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p9460144445111">Description: Queries whether a specified <strong id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_b6526896593858">relfilenode</strong> is a residual file in the current database. This function is an instance-level function and is related to the current database. It can run on any instance.</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p6460444115112">Parameter type: text</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p746014444512">Return type: bool</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p15460154465117">The following table describes return columns.</p>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_table1046184412513" frame="border" border="1" rules="all"><caption><b>Table 4 </b>pg_is_residualfiles (residualfile) return fields</caption><thead align="left"><tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row5461194455115"><th align="left" class="cellrowborder" valign="top" width="19.09%" id="mcps1.3.5.6.2.4.1.1"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p54604441514">Column</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="21%" id="mcps1.3.5.6.2.4.1.2"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p3461644165116">Type</p>
</th>
<th align="left" class="cellrowborder" valign="top" width="59.91%" id="mcps1.3.5.6.2.4.1.3"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p846114416515">Description</p>
</th>
</tr>
</thead>
<tbody><tr id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_row14611544195110"><td class="cellrowborder" valign="top" width="19.09%" headers="mcps1.3.5.6.2.4.1.1 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p446124410514">result</p>
</td>
<td class="cellrowborder" valign="top" width="21%" headers="mcps1.3.5.6.2.4.1.2 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p17461124435113">bool</p>
</td>
<td class="cellrowborder" valign="top" width="59.91%" headers="mcps1.3.5.6.2.4.1.3 "><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p144611448516">Residual file or not</p>
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<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p94617444516">Example:</p>
<div class="codecoloring" codetype="Sql" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_screen846224411517"><div class="highlight"><table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><span class="normal">1</span>
<span class="normal">2</span>
<span class="normal">3</span>
<span class="normal">4</span>
<span class="normal">5</span></pre></div></td><td class="code"><div><pre><span></span><span class="k">SELECT</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="k">FROM</span><span class="w"> </span><span class="n">pg_is_residualfiles</span><span class="p">(</span><span class="s1">'base/49155/114691'</span><span class="p">);</span>
<span class="w"> </span><span class="k">result</span><span class="w"> </span>
<span class="c1">--------</span>
<span class="w"> </span><span class="n">t</span>
<span class="p">(</span><span class="mi">1</span><span class="w"> </span><span class="k">row</span><span class="p">)</span>
</pre></div></td></tr></table></div>
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<div class="note" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_note1446364495112"><img src="public_sys-resources/note_3.0-en-us.png"><span class="notetitle"> </span><div class="notebody"><p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p1246264415112">This function only verifies whether the recorded file is a residual file in the current database. If the recorded file is not in the current database, it is verified as a residual file.</p>
<p id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_p5462154414517">For example, the file <strong id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_b7347115419572">base/15092/14790</strong> is not regarded as a residual file in a <strong id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_b103471054145710"></strong><strong id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_b6347115418576"><span id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_text846294414518">gaussdb</span></strong> database, but it is regarded as a residual file in other databases.</p>
<pre class="screen" id="EN-US_TOPIC_0000001510400901__en-us_topic_0000001444933648_screen156089175464">SELECT * FROM pg_is_residualfiles('base/15092/14790');
result
--------
f
(1 row)
\c db2
db2=# SELECT * FROM pg_is_residualfiles('base/15092/14790');
result
--------
t
(1 row)</pre>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_06_0060.html">Residual File Management Functions</a></div>
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