<h2 dir="auto">Bug Report</h2>
<h3 dir="auto">Which version of ShardingSphere did you use?</h3>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content=" apache-shardingsphere-4.1.0-sharding-proxy-bin.tar.gz"><pre class="notranslate"><code class="notranslate"> apache-shardingsphere-4.1.0-sharding-proxy-bin.tar.gz
</code></pre></div>
<h3 dir="auto">Which project did you use? ShardingSphere-JDBC or ShardingSphere-Proxy?</h3>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content=" ShardingSphere-Proxy"><pre class="notranslate"><code class="notranslate"> ShardingSphere-Proxy
</code></pre></div>
<h3 dir="auto">Expected behavior</h3>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content=" can get data correctly"><pre class="notranslate"><code class="notranslate"> can get data correctly
</code></pre></div>
<h3 dir="auto">Actual behavior</h3>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="  if there are null values in a record, wrong data will be return ."><pre class="notranslate"><code class="notranslate">  if there are null values in a record, wrong data will be return .
</code></pre></div>
<h3 dir="auto">Reason analyze (If you can)</h3>
<h3 dir="auto">Steps to reproduce the behavior, such as: SQL to execute, sharding rule configuration, when exception occur etc.</h3>
<p dir="auto"><a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="542272429" data-permission-text="Title is private" data-url="https://github.com/apache/shardingsphere/issues/3801" data-hovercard-type="issue" data-hovercard-url="/apache/shardingsphere/issues/3801/hovercard" href="https://github.com/apache/shardingsphere/issues/3801">#3801</a> can be refered to create the test data.<br>
test.zip is the source file of a test project.<br>
yaml.zip includes the configuration files in conf folder.</p>
<h3 dir="auto">Example codes for reproduce this issue (such as a github link).</h3>
<p dir="auto"><a href="https://github.com/apache/shardingsphere/files/4722468/test.zip">test.zip</a><br>
<a href="https://github.com/apache/shardingsphere/files/4722482/yaml.zip">yaml.zip</a></p>
<p dir="auto">my version is upgraded to  4.0.0-RC3.<br>
and i still have the problem while shardingjdbc load all the default database table metadata info causing application start slowly.   i browsed all the questions commited on the git issues. i set "check.table.metadata.enabled" with false, i event set "executor.size" with 100。 but all of them do not work.   and no body can give  an correct answer。 is this question  an Unsolvable problem？ can someone tell me that whether the problem can be solved or not ?</p>