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| <div class="section" id="module-airflow.contrib.operators.sql_to_gcs"> |
| <span id="airflow-contrib-operators-sql-to-gcs"></span><h1><a class="reference internal" href="#module-airflow.contrib.operators.sql_to_gcs" title="airflow.contrib.operators.sql_to_gcs"><code class="xref py py-mod docutils literal notranslate"><span class="pre">airflow.contrib.operators.sql_to_gcs</span></code></a><a class="headerlink" href="#module-airflow.contrib.operators.sql_to_gcs" title="Permalink to this headline">¶</a></h1> |
| <p><p>Base operator for SQL to GCS operators.</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="data"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.PY3"> |
| <code class="sig-prename descclassname">airflow.contrib.operators.sql_to_gcs.</code><code class="sig-name descname">PY3</code><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#PY3"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.PY3" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="class"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator"> |
| <em class="property">class </em><code class="sig-prename descclassname">airflow.contrib.operators.sql_to_gcs.</code><code class="sig-name descname">BaseSQLToGoogleCloudStorageOperator</code><span class="sig-paren">(</span><em class="sig-param">sql</em>, <em class="sig-param">bucket</em>, <em class="sig-param">filename</em>, <em class="sig-param">schema_filename=None</em>, <em class="sig-param">approx_max_file_size_bytes=1900000000</em>, <em class="sig-param">export_format='json'</em>, <em class="sig-param">field_delimiter='</em>, <em class="sig-param">'</em>, <em class="sig-param">gzip=False</em>, <em class="sig-param">schema=None</em>, <em class="sig-param">parameters=None</em>, <em class="sig-param">google_cloud_storage_conn_id='google_cloud_default'</em>, <em class="sig-param">delegate_to=None</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/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Bases: <a class="reference internal" href="../../../models/index.html#airflow.models.BaseOperator" title="airflow.models.BaseOperator"><code class="xref py py-class docutils literal notranslate"><span class="pre">airflow.models.BaseOperator</span></code></a></p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Parameters</dt> |
| <dd class="field-odd"><ul class="simple"> |
| <li><p><strong>sql</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The SQL to execute.</p></li> |
| <li><p><strong>bucket</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The bucket to upload to.</p></li> |
| <li><p><strong>filename</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The filename to use as the object name when uploading |
| to Google Cloud Storage. A {} should be specified in the filename |
| to allow the operator to inject file numbers in cases where the |
| file is split due to size.</p></li> |
| <li><p><strong>schema_filename</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – If set, the filename to use as the object name |
| when uploading a .json file containing the BigQuery schema fields |
| for the table that was dumped from the database.</p></li> |
| <li><p><strong>approx_max_file_size_bytes</strong> (<em>long</em>) – This operator supports the ability |
| to split large table dumps into multiple files (see notes in the |
| filename param docs above). This param allows developers to specify the |
| file size of the splits. Check <a class="reference external" href="https://cloud.google.com/storage/quotas">https://cloud.google.com/storage/quotas</a> |
| to see the maximum allowed file size for a single object.</p></li> |
| <li><p><strong>export_format</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – Desired format of files to be exported.</p></li> |
| <li><p><strong>field_delimiter</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a>) – The delimiter to be used for CSV files.</p></li> |
| <li><p><strong>gzip</strong> (<a class="reference external" href="https://docs.python.org/3/library/functions.html#bool" title="(in Python v3.8)"><em>bool</em></a>) – Option to compress file for upload (does not apply to schemas).</p></li> |
| <li><p><strong>schema</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.8)"><em>str</em></a><em> or </em><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.8)"><em>list</em></a>) – The schema to use, if any. Should be a list of dict or |
| a str. Pass a string if using Jinja template, otherwise, pass a list of |
| dict. Examples could be seen: <a class="reference external" href="https://cloud.google.com/bigquery/docs">https://cloud.google.com/bigquery/docs</a> |
| /schemas#specifying_a_json_schema_file</p></li> |
| <li><p><strong>google_cloud_storage_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>) – Reference to a specific Google |
| cloud storage hook.</p></li> |
| <li><p><strong>delegate_to</strong> – The account to impersonate, if any. For this to |
| work, the service account making the request must have domain-wide |
| delegation enabled.</p></li> |
| <li><p><strong>parameters</strong> (<a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.8)"><em>dict</em></a>) – a parameters dict that is substituted at query runtime.</p></li> |
| </ul> |
| </dd> |
| </dl> |
| <dl class="attribute"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.template_fields"> |
| <code class="sig-name descname">template_fields</code><em class="property"> = ['sql', 'bucket', 'filename', 'schema_filename', 'schema', 'parameters']</em><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator.template_fields"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.template_fields" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="attribute"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.template_ext"> |
| <code class="sig-name descname">template_ext</code><em class="property"> = ['.sql']</em><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator.template_ext"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.template_ext" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="attribute"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.ui_color"> |
| <code class="sig-name descname">ui_color</code><em class="property"> = #a0e08c</em><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator.ui_color"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.ui_color" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.execute"> |
| <code class="sig-name descname">execute</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">context</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator.execute"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.execute" title="Permalink to this definition">¶</a></dt> |
| <dd></dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.convert_types"> |
| <code class="sig-name descname">convert_types</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">schema</em>, <em class="sig-param">col_type_dict</em>, <em class="sig-param">row</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator.convert_types"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.convert_types" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Convert values from DBAPI to output-friendly formats.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator._write_local_data_files"> |
| <code class="sig-name descname">_write_local_data_files</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">cursor</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator._write_local_data_files"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator._write_local_data_files" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Takes a cursor, and writes results to a local file.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Returns</dt> |
| <dd class="field-odd"><p>A dictionary where keys are filenames to be used as object |
| names in GCS, and values are file handles to local files that |
| contain the data for the GCS objects.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator._configure_csv_file"> |
| <code class="sig-name descname">_configure_csv_file</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">file_handle</em>, <em class="sig-param">schema</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator._configure_csv_file"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator._configure_csv_file" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Configure a csv writer with the file_handle and write schema |
| as headers for the new file.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.query"> |
| <code class="sig-name descname">query</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/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator.query"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.query" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Execute DBAPI query.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.field_to_bigquery"> |
| <code class="sig-name descname">field_to_bigquery</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">field</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator.field_to_bigquery"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.field_to_bigquery" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Convert a DBAPI field to BigQuery schema format.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.convert_type"> |
| <code class="sig-name descname">convert_type</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">value</em>, <em class="sig-param">schema_type</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator.convert_type"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator.convert_type" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Convert a value from DBAPI to output-friendly formats.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator._get_col_type_dict"> |
| <code class="sig-name descname">_get_col_type_dict</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/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator._get_col_type_dict"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator._get_col_type_dict" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Return a dict of column name and column type based on self.schema if not None.</p> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator._write_local_schema_file"> |
| <code class="sig-name descname">_write_local_schema_file</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">cursor</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator._write_local_schema_file"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator._write_local_schema_file" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Takes a cursor, and writes the BigQuery schema for the results to a |
| local file system.</p> |
| <dl class="field-list simple"> |
| <dt class="field-odd">Returns</dt> |
| <dd class="field-odd"><p>A dictionary where key is a filename to be used as an object |
| name in GCS, and values are file handles to local files that |
| contains the BigQuery schema fields in .json format.</p> |
| </dd> |
| </dl> |
| </dd></dl> |
| |
| <dl class="method"> |
| <dt id="airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator._upload_to_gcs"> |
| <code class="sig-name descname">_upload_to_gcs</code><span class="sig-paren">(</span><em class="sig-param">self</em>, <em class="sig-param">files_to_upload</em><span class="sig-paren">)</span><a class="reference internal" href="../../../../../_modules/airflow/contrib/operators/sql_to_gcs.html#BaseSQLToGoogleCloudStorageOperator._upload_to_gcs"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#airflow.contrib.operators.sql_to_gcs.BaseSQLToGoogleCloudStorageOperator._upload_to_gcs" title="Permalink to this definition">¶</a></dt> |
| <dd><p>Upload all of the file splits (and optionally the schema .json file) to |
| Google cloud storage.</p> |
| </dd></dl> |
| |
| </dd></dl> |
| |
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