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<div class="section" id="module-airflow.contrib.hooks.aws_athena_hook">
<span id="airflow-contrib-hooks-aws-athena-hook"></span><h1><a class="reference internal" href="#module-airflow.contrib.hooks.aws_athena_hook" title="airflow.contrib.hooks.aws_athena_hook"><code class="xref py py-mod docutils literal notranslate"><span class="pre">airflow.contrib.hooks.aws_athena_hook</span></code></a><a class="headerlink" href="#module-airflow.contrib.hooks.aws_athena_hook" title="Permalink to this headline"></a></h1>
<p><p>This module contains AWS Athena hook</p>
</p>
<div class="section" id="module-contents">
<h2>Module Contents<a class="headerlink" href="#module-contents" title="Permalink to this headline"></a></h2>
<dl class="class">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook">
<em class="property">class </em><code class="sig-prename descclassname">airflow.contrib.hooks.aws_athena_hook.</code><code class="sig-name descname">AWSAthenaHook</code><span class="sig-paren">(</span><em class="sig-param">aws_conn_id='aws_default'</em>, <em class="sig-param">sleep_time=30</em>, <em class="sig-param">*args</em>, <em class="sig-param">**kwargs</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook" title="Permalink to this definition"></a></dt>
<dd><p>Bases: <a class="reference internal" href="../aws_hook/index.html#airflow.contrib.hooks.aws_hook.AwsHook" title="airflow.contrib.hooks.aws_hook.AwsHook"><code class="xref py py-class docutils literal notranslate"><span class="pre">airflow.contrib.hooks.aws_hook.AwsHook</span></code></a></p>
<p>Interact with AWS Athena to run, poll queries and return query results</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>aws_conn_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – aws connection to use.</p></li>
<li><p><strong>sleep_time</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – Time to wait between two consecutive call to check query status on athena</p></li>
</ul>
</dd>
</dl>
<dl class="attribute">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.INTERMEDIATE_STATES">
<code class="sig-name descname">INTERMEDIATE_STATES</code><em class="property"> = ['QUEUED', 'RUNNING']</em><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook.INTERMEDIATE_STATES"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.INTERMEDIATE_STATES" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="attribute">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.FAILURE_STATES">
<code class="sig-name descname">FAILURE_STATES</code><em class="property"> = ['FAILED', 'CANCELLED']</em><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook.FAILURE_STATES"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.FAILURE_STATES" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="attribute">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.SUCCESS_STATES">
<code class="sig-name descname">SUCCESS_STATES</code><em class="property"> = ['SUCCEEDED']</em><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook.SUCCESS_STATES"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.SUCCESS_STATES" title="Permalink to this definition"></a></dt>
<dd></dd></dl>
<dl class="method">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.get_conn">
<code class="sig-name descname">get_conn</code><span class="sig-paren">(</span><em class="sig-param">self</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook.get_conn"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.get_conn" title="Permalink to this definition"></a></dt>
<dd><p>check if aws conn exists already or create one and return it</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>boto3 session</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.run_query">
<code class="sig-name descname">run_query</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">query</em>, <em class="sig-param">query_context</em>, <em class="sig-param">result_configuration</em>, <em class="sig-param">client_request_token=None</em>, <em class="sig-param">workgroup='default'</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook.run_query"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.run_query" title="Permalink to this definition"></a></dt>
<dd><p>Run Presto query on athena with provided config and return submitted query_execution_id</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>query</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Presto query to run</p></li>
<li><p><strong>query_context</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.8)"><em>dict</em></a>) – Context in which query need to be run</p></li>
<li><p><strong>result_configuration</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.8)"><em>dict</em></a>) – Dict with path to store results in and config related to encryption</p></li>
<li><p><strong>client_request_token</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Unique token created by user to avoid multiple executions of same query</p></li>
<li><p><strong>workgroup</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Athena workgroup name, when not specified, will be ‘default’</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>str</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.check_query_status">
<code class="sig-name descname">check_query_status</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">query_execution_id</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook.check_query_status"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.check_query_status" title="Permalink to this definition"></a></dt>
<dd><p>Fetch the status of submitted athena query. Returns None or one of valid query states.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>query_execution_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Id of submitted athena query</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>str</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.get_state_change_reason">
<code class="sig-name descname">get_state_change_reason</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">query_execution_id</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook.get_state_change_reason"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.get_state_change_reason" title="Permalink to this definition"></a></dt>
<dd><p>Fetch the reason for a state change (e.g. error message). Returns None or reason string.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>query_execution_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Id of submitted athena query</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>str</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.get_query_results">
<code class="sig-name descname">get_query_results</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">query_execution_id</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook.get_query_results"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.get_query_results" title="Permalink to this definition"></a></dt>
<dd><p>Fetch submitted athena query results. returns none if query is in intermediate state or
failed/cancelled state else dict of query output</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>query_execution_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Id of submitted athena query</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>dict</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.poll_query_status">
<code class="sig-name descname">poll_query_status</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">query_execution_id</em>, <em class="sig-param">max_tries=None</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook.poll_query_status"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.poll_query_status" title="Permalink to this definition"></a></dt>
<dd><p>Poll the status of submitted athena query until query state reaches final state.
Returns one of the final states</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><ul class="simple">
<li><p><strong>query_execution_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Id of submitted athena query</p></li>
<li><p><strong>max_tries</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.8)"><em>int</em></a>) – Number of times to poll for query state before function exits</p></li>
</ul>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>str</p>
</dd>
</dl>
</dd></dl>
<dl class="method">
<dt id="airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.stop_query">
<code class="sig-name descname">stop_query</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">query_execution_id</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/hooks/aws_athena_hook.html#AWSAthenaHook.stop_query"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.hooks.aws_athena_hook.AWSAthenaHook.stop_query" title="Permalink to this definition"></a></dt>
<dd><p>Cancel the submitted athena query</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>query_execution_id</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Id of submitted athena query</p>
</dd>
<dt class="field-even">Returns</dt>
<dd class="field-even"><p>dict</p>
</dd>
</dl>
</dd></dl>
</dd></dl>
</div>
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