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<title>[49456] Upgrade/Install: During the install process, add additional checking for exising tables.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/49456">49456</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/49456","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>whyisjake</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2020-10-30 18:27:45 +0000 (Fri, 30 Oct 2020)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Upgrade/Install: During the install process, add additional checking for exising tables.
This commit brings the changes in <a href="https://core.trac.wordpress.org/changeset/49452">[49452]</a> to the 5.2 branch.
If reinstalling WordPress, there is a condition where tables would exist in the database. Ensures that$
Fixes <a href="https://core.trac.wordpress.org/ticket/51676">#51676</a>.
Props xknown, garubi, mukesh27, desrosj, johnbillion, metalandcoffee, davidbaumwald, whyisjake.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#branches52srcwpincludesfunctionsphp">branches/5.2/src/wp-includes/functions.php</a></li>
</ul>
<h3>Property Changed</h3>
<ul>
<li><a href="#branches52">branches/5.2/</a></li>
</ul>
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<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: branches/5.2
</span><span class="cx" style="display: block; padding: 0 10px">===================================================================
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">--- branches/5.2 2020-10-30 18:26:24 UTC (rev 49455)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ branches/5.2 2020-10-30 18:27:45 UTC (rev 49456)
</ins><a id="branches52"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: branches/5.2</h4>
<pre class="diff"><span>
</span></pre></div>
<a id="svnmergeinfo"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: svn:mergeinfo</h4></div>
<span class="cx" style="display: block; padding: 0 10px"> /branches/4.9:43557,43622
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.0:43681-43682,43684-43688,43719-43720,43723,43726-43727,43729-43731,43734-43744,43747,43751-43754,43758,43760-43765,43767-43770,43772,43774-43781,43783,43785,43790-43806,43808-43821,43825,43828,43830-43834,43836-43843,43846-43863,43867-43889,43891-43894,43897-43905,43908-43909,43911-43929,43931-43942,43946-43947,43949-43956,43959-43964,43967-43969,43988,43994,44014,44017,44047,44183,44185,44187-44206,44208-44213,44231-44232,44235,44248,44284,44287-44288
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/5.5:49373-49379,49381
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/trunk:45284-45285,45287,45289,45292,45296,45298,45300-45301,45308-45311,45316,45319,45322,45324,45326,45328,45331,45334,45336,45338,45340,45342,45344-45346,45348,45350,45352,45357,45365,45367,45376,45403,45411,45416,45425,45463,45481,45488,45495,45501-45503,45506-45507,45515,45520,45522,45526-45527,45529,45551,45563-45564,45569,45572,45576,45618-45619,45626,45655-45656,45673,45684,45701,45722,45725,45727,45750,45761,45764,45861,45863,45867,45869,45935-45936,45971,45979,45990,45997,46019,46073,46472,46474-46476,46478,46483,46485,46893-46896,47313,47318,47341,47633-47638,47790,47887,47889,47948-47951,47984,48241,48338,48341,49380,49382-49388
</del><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/trunk:45284-45285,45287,45289,45292,45296,45298,45300-45301,45308-45311,45316,45319,45322,45324,45326,45328,45331,45334,45336,45338,45340,45342,45344-45346,45348,45350,45352,45357,45365,45367,45376,45403,45411,45416,45425,45463,45481,45488,45495,45501-45503,45506-45507,45515,45520,45522,45526-45527,45529,45551,45563-45564,45569,45572,45576,45618-45619,45626,45655-45656,45673,45684,45701,45722,45725,45727,45750,45761,45764,45861,45863,45867,45869,45935-45936,45971,45979,45990,45997,46019,46073,46472,46474-46476,46478,46483,46485,46893-46896,47313,47318,47341,47633-47638,47790,47887,47889,47948-47951,47984,48241,48338,48341,49380,49382-49388,49452
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="branches52srcwpincludesfunctionsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: branches/5.2/src/wp-includes/functions.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- branches/5.2/src/wp-includes/functions.php 2020-10-30 18:26:24 UTC (rev 49455)
+++ branches/5.2/src/wp-includes/functions.php 2020-10-30 18:27:45 UTC (rev 49456)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1567,7 +1567,10 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $described_table = $wpdb->get_results( "DESCRIBE $table;" );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( is_array( $described_table ) && count( $described_table ) === 0 ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if (
+ ( ! $described_table && empty( $wpdb->last_error ) ) ||
+ ( is_array( $described_table ) && 0 === count( $described_table ) )
+ ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> continue;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre>
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