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| <h1 class="title">RESET</h1> |
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| <h3 id="description">Description</h3> |
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| <p>The RESET command resets runtime configurations specific to the current session which were set via the <a href="sql-ref-syntax-aux-conf-mgmt-set.html">SET</a> command to their default values.</p> |
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| <h3 id="syntax">Syntax</h3> |
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| <div class="language-sql highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="k">RESET</span><span class="p">;</span> |
| |
| <span class="k">RESET</span> <span class="n">configuration_key</span><span class="p">;</span> |
| </code></pre></div></div> |
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| <h3 id="parameters">Parameters</h3> |
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| <li> |
| <p><strong>(none)</strong></p> |
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| <p>Reset any runtime configurations specific to the current session which were set via the <a href="sql-ref-syntax-aux-conf-mgmt-set.html">SET</a> command to their default values.</p> |
| </li> |
| <li> |
| <p><strong>configuration_key</strong></p> |
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| <p>Restore the value of the <code class="language-plaintext highlighter-rouge">configuration_key</code> to the default value. If the default value is undefined, the <code class="language-plaintext highlighter-rouge">configuration_key</code> will be removed.</p> |
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| <h3 id="examples">Examples</h3> |
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| <div class="language-sql highlighter-rouge"><div class="highlight"><pre class="highlight"><code><span class="c1">-- Reset any runtime configurations specific to the current session which were set via the SET command to their default values.</span> |
| <span class="k">RESET</span><span class="p">;</span> |
| |
| <span class="c1">-- If you start your application with --conf spark.foo=bar and set spark.foo=foobar in runtime, the example below will restore it to 'bar'. If spark.foo is not specified during starting, the example bellow will remove this config from the SQLConf. It will ignore nonexistent keys.</span> |
| <span class="k">RESET</span> <span class="n">spark</span><span class="p">.</span><span class="n">abc</span><span class="p">;</span> |
| </code></pre></div></div> |
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| <h3 id="related-statements">Related Statements</h3> |
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