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<section id="query-sql-and-nosql-servers">
<h1>Query SQL and NoSQL servers<a class="headerlink" href="#query-sql-and-nosql-servers" title="Permalink to this heading"></a></h1>
<section id="sql">
<h2>SQL<a class="headerlink" href="#sql" title="Permalink to this heading"></a></h2>
<p>SQL servers are traditional databases with predefined data schema. Furthermore,
modern versions also support BLOB data.</p>
<p>You can search in the following servers:</p>
<ul class="simple">
<li><p><a class="reference internal" href="#postgresql">PostgreSQL</a></p></li>
<li><p><a class="reference internal" href="#mysql">MySQL</a></p></li>
<li><p><a class="reference internal" href="#sqlite">SQLite</a></p></li>
</ul>
<p>The configuration of the new database engines are similar. You must put a valid
SELECT SQL query in <code class="docutils literal notranslate"><span class="pre">query_str</span></code>. At the moment you can only bind at most
one parameter in your query.</p>
<p>Do not include LIMIT or OFFSET in your SQL query as the engines
rely on these keywords during paging.</p>
<section id="postgresql">
<h3>PostgreSQL<a class="headerlink" href="#postgresql" title="Permalink to this heading"></a></h3>
<p>Required PyPi package: <code class="docutils literal notranslate"><span class="pre">psychopg2</span></code></p>
<p>You can find an example configuration below:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">postgresql</span><span class="w"></span>
<span class="w"> </span><span class="nt">engine </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">postgresql</span><span class="w"></span>
<span class="w"> </span><span class="nt">database </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my_database</span><span class="w"></span>
<span class="w"> </span><span class="nt">username </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">searx</span><span class="w"></span>
<span class="w"> </span><span class="nt">password </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">password</span><span class="w"></span>
<span class="w"> </span><span class="nt">query_str </span><span class="p">:</span><span class="w"> </span><span class="s">&#39;SELECT</span><span class="nv"> </span><span class="s">*</span><span class="nv"> </span><span class="s">from</span><span class="nv"> </span><span class="s">my_table</span><span class="nv"> </span><span class="s">WHERE</span><span class="nv"> </span><span class="s">my_column</span><span class="nv"> </span><span class="s">=</span><span class="nv"> </span><span class="s">%(query)s&#39;</span><span class="w"></span>
<span class="w"> </span><span class="nt">shortcut </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">psql</span><span class="w"></span>
</pre></div>
</div>
<section id="available-options">
<h4>Available options<a class="headerlink" href="#available-options" title="Permalink to this heading"></a></h4>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">host</span></code>: IP address of the host running PostgreSQL. By default it is <code class="docutils literal notranslate"><span class="pre">127.0.0.1</span></code>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">port</span></code>: Port number PostgreSQL is listening on. By default it is <code class="docutils literal notranslate"><span class="pre">5432</span></code>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">database</span></code>: Name of the database you are connecting to.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">username</span></code>: Name of the user connecting to the database.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">password</span></code>: Password of the database user.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">query_str</span></code>: Query string to run. Keywords like <code class="docutils literal notranslate"><span class="pre">LIMIT</span></code> and <code class="docutils literal notranslate"><span class="pre">OFFSET</span></code> are not allowed. Required.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">limit</span></code>: Number of returned results per page. By default it is 10.</p></li>
</ul>
</section>
</section>
<section id="mysql">
<h3>MySQL<a class="headerlink" href="#mysql" title="Permalink to this heading"></a></h3>
<p>Required PyPi package: <code class="docutils literal notranslate"><span class="pre">mysql-connector-python</span></code></p>
<p>This is an example configuration for quering a MySQL server:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mysql</span><span class="w"></span>
<span class="w"> </span><span class="nt">engine </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mysql_server</span><span class="w"></span>
<span class="w"> </span><span class="nt">database </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my_database</span><span class="w"></span>
<span class="w"> </span><span class="nt">username </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">searx</span><span class="w"></span>
<span class="w"> </span><span class="nt">password </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">password</span><span class="w"></span>
<span class="w"> </span><span class="nt">limit </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">5</span><span class="w"></span>
<span class="w"> </span><span class="nt">query_str </span><span class="p">:</span><span class="w"> </span><span class="s">&#39;SELECT</span><span class="nv"> </span><span class="s">*</span><span class="nv"> </span><span class="s">from</span><span class="nv"> </span><span class="s">my_table</span><span class="nv"> </span><span class="s">WHERE</span><span class="nv"> </span><span class="s">my_column=%(query)s&#39;</span><span class="w"></span>
<span class="w"> </span><span class="nt">shortcut </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mysql</span><span class="w"></span>
</pre></div>
</div>
<section id="id1">
<h4>Available options<a class="headerlink" href="#id1" title="Permalink to this heading"></a></h4>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">host</span></code>: IP address of the host running MySQL. By default it is <code class="docutils literal notranslate"><span class="pre">127.0.0.1</span></code>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">port</span></code>: Port number MySQL is listening on. By default it is <code class="docutils literal notranslate"><span class="pre">3306</span></code>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">database</span></code>: Name of the database you are connecting to.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">auth_plugin</span></code>: Authentication plugin to use. By default it is <code class="docutils literal notranslate"><span class="pre">caching_sha2_password</span></code>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">username</span></code>: Name of the user connecting to the database.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">password</span></code>: Password of the database user.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">query_str</span></code>: Query string to run. Keywords like <code class="docutils literal notranslate"><span class="pre">LIMIT</span></code> and <code class="docutils literal notranslate"><span class="pre">OFFSET</span></code> are not allowed. Required.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">limit</span></code>: Number of returned results per page. By default it is 10.</p></li>
</ul>
</section>
</section>
<section id="sqlite">
<h3>SQLite<a class="headerlink" href="#sqlite" title="Permalink to this heading"></a></h3>
<p>You can read from your database <code class="docutils literal notranslate"><span class="pre">my_database</span></code> using this example configuration:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">sqlite</span><span class="w"></span>
<span class="w"> </span><span class="nt">engine </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">sqlite</span><span class="w"></span>
<span class="w"> </span><span class="nt">shortcut</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">sq</span><span class="w"></span>
<span class="w"> </span><span class="nt">database </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">my_database</span><span class="w"></span>
<span class="w"> </span><span class="nt">query_str </span><span class="p">:</span><span class="w"> </span><span class="s">&#39;SELECT</span><span class="nv"> </span><span class="s">*</span><span class="nv"> </span><span class="s">FROM</span><span class="nv"> </span><span class="s">my_table</span><span class="nv"> </span><span class="s">WHERE</span><span class="nv"> </span><span class="s">my_column=:query&#39;</span><span class="w"></span>
</pre></div>
</div>
<section id="id2">
<h4>Available options<a class="headerlink" href="#id2" title="Permalink to this heading"></a></h4>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">database</span></code>: Name of the database you are connecting to.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">query_str</span></code>: Query string to run. Keywords like <code class="docutils literal notranslate"><span class="pre">LIMIT</span></code> and <code class="docutils literal notranslate"><span class="pre">OFFSET</span></code> are not allowed. Required.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">limit</span></code>: Number of returned results per page. By default it is 10.</p></li>
</ul>
</section>
</section>
</section>
<section id="nosql">
<h2>NoSQL<a class="headerlink" href="#nosql" title="Permalink to this heading"></a></h2>
<p>NoSQL data stores are used for storing arbitrary data without first defining their
structure. To query the supported servers, you must install their drivers using PyPi.</p>
<p>You can search in the following servers:</p>
<ul class="simple">
<li><p><a class="reference internal" href="#redis">Redis</a></p></li>
<li><p><a class="reference internal" href="#mongodb">MongoDB</a></p></li>
</ul>
<section id="redis">
<h3>Redis<a class="headerlink" href="#redis" title="Permalink to this heading"></a></h3>
<p>Reqired PyPi package: <code class="docutils literal notranslate"><span class="pre">redis</span></code></p>
<p>Example configuration:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mystore</span><span class="w"></span>
<span class="w"> </span><span class="nt">engine </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">redis_server</span><span class="w"></span>
<span class="w"> </span><span class="nt">exact_match_only </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">True</span><span class="w"></span>
<span class="w"> </span><span class="nt">host </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">127.0.0.1</span><span class="w"></span>
<span class="w"> </span><span class="nt">port </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">6379</span><span class="w"></span>
<span class="w"> </span><span class="nt">password </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">secret-password</span><span class="w"></span>
<span class="w"> </span><span class="nt">db </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">0</span><span class="w"></span>
<span class="w"> </span><span class="nt">shortcut </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">rds</span><span class="w"></span>
<span class="w"> </span><span class="nt">enable_http </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">True</span><span class="w"></span>
</pre></div>
</div>
<section id="id3">
<h4>Available options<a class="headerlink" href="#id3" title="Permalink to this heading"></a></h4>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">host</span></code>: IP address of the host running Redis. By default it is <code class="docutils literal notranslate"><span class="pre">127.0.0.1</span></code>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">port</span></code>: Port number Redis is listening on. By default it is <code class="docutils literal notranslate"><span class="pre">6379</span></code>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">password</span></code>: Password if required by Redis.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">db</span></code>: Number of the database you are connecting to.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">exact_match_only</span></code>: Enable if you need exact matching. By default it is <code class="docutils literal notranslate"><span class="pre">True</span></code>.</p></li>
</ul>
</section>
</section>
<section id="mongodb">
<h3>MongoDB<a class="headerlink" href="#mongodb" title="Permalink to this heading"></a></h3>
<p>Required PyPi package: <code class="docutils literal notranslate"><span class="pre">pymongo</span></code></p>
<p>Below is an example configuration for using a MongoDB collection:</p>
<div class="highlight-yaml notranslate"><div class="highlight"><pre><span></span><span class="p p-Indicator">-</span><span class="w"> </span><span class="nt">name </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mymongo</span><span class="w"></span>
<span class="w"> </span><span class="nt">engine </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">mongodb</span><span class="w"></span>
<span class="w"> </span><span class="nt">shortcut </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">icm</span><span class="w"></span>
<span class="w"> </span><span class="nt">host </span><span class="p">:</span><span class="w"> </span><span class="s">&#39;127.0.0.1&#39;</span><span class="w"></span>
<span class="w"> </span><span class="nt">port </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">27017</span><span class="w"></span>
<span class="w"> </span><span class="nt">database </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">personal</span><span class="w"></span>
<span class="w"> </span><span class="nt">collection </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">income</span><span class="w"></span>
<span class="w"> </span><span class="nt">key </span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">month</span><span class="w"></span>
<span class="w"> </span><span class="nt">enable_http</span><span class="p">:</span><span class="w"> </span><span class="l l-Scalar l-Scalar-Plain">True</span><span class="w"></span>
</pre></div>
</div>
<section id="id4">
<h4>Available options<a class="headerlink" href="#id4" title="Permalink to this heading"></a></h4>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">host</span></code>: IP address of the host running MongoDB. By default it is <code class="docutils literal notranslate"><span class="pre">127.0.0.1</span></code>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">port</span></code>: Port number MongoDB is listening on. By default it is <code class="docutils literal notranslate"><span class="pre">27017</span></code>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">password</span></code>: Password if required by Redis.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">database</span></code>: Name of the database you are connecting to.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">collection</span></code>: Name of the collection you want to search in.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">exact_match_only</span></code>: Enable if you need exact matching. By default it is <code class="docutils literal notranslate"><span class="pre">True</span></code>.</p></li>
</ul>
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