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| <div class="section" id="input-output"> |
| <h1>Input/Output<a class="headerlink" href="#input-output" title="Permalink to this headline">¶</a></h1> |
| <table class="longtable table autosummary"> |
| <colgroup> |
| <col style="width: 10%" /> |
| <col style="width: 90%" /> |
| </colgroup> |
| <tbody> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.csv.html#pyspark.sql.DataFrameReader.csv" title="pyspark.sql.DataFrameReader.csv"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.csv</span></code></a>(path[, schema, sep, …])</p></td> |
| <td><p>Loads a CSV file and returns the result as a <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a>.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.format.html#pyspark.sql.DataFrameReader.format" title="pyspark.sql.DataFrameReader.format"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.format</span></code></a>(source)</p></td> |
| <td><p>Specifies the input data source format.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.jdbc.html#pyspark.sql.DataFrameReader.jdbc" title="pyspark.sql.DataFrameReader.jdbc"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.jdbc</span></code></a>(url, table[, column, …])</p></td> |
| <td><p>Construct a <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a> representing the database table named <code class="docutils literal notranslate"><span class="pre">table</span></code> accessible via JDBC URL <code class="docutils literal notranslate"><span class="pre">url</span></code> and connection <code class="docutils literal notranslate"><span class="pre">properties</span></code>.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.json.html#pyspark.sql.DataFrameReader.json" title="pyspark.sql.DataFrameReader.json"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.json</span></code></a>(path[, schema, …])</p></td> |
| <td><p>Loads JSON files and returns the results as a <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a>.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.load.html#pyspark.sql.DataFrameReader.load" title="pyspark.sql.DataFrameReader.load"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.load</span></code></a>([path, format, schema])</p></td> |
| <td><p>Loads data from a data source and returns it as a <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a>.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.option.html#pyspark.sql.DataFrameReader.option" title="pyspark.sql.DataFrameReader.option"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.option</span></code></a>(key, value)</p></td> |
| <td><p>Adds an input option for the underlying data source.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.options.html#pyspark.sql.DataFrameReader.options" title="pyspark.sql.DataFrameReader.options"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.options</span></code></a>(**options)</p></td> |
| <td><p>Adds input options for the underlying data source.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.orc.html#pyspark.sql.DataFrameReader.orc" title="pyspark.sql.DataFrameReader.orc"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.orc</span></code></a>(path[, mergeSchema, …])</p></td> |
| <td><p>Loads ORC files, returning the result as a <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a>.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.parquet.html#pyspark.sql.DataFrameReader.parquet" title="pyspark.sql.DataFrameReader.parquet"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.parquet</span></code></a>(*paths, **options)</p></td> |
| <td><p>Loads Parquet files, returning the result as a <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a>.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.schema.html#pyspark.sql.DataFrameReader.schema" title="pyspark.sql.DataFrameReader.schema"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.schema</span></code></a>(schema)</p></td> |
| <td><p>Specifies the input schema.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.table.html#pyspark.sql.DataFrameReader.table" title="pyspark.sql.DataFrameReader.table"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.table</span></code></a>(tableName)</p></td> |
| <td><p>Returns the specified table as a <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a>.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameReader.text.html#pyspark.sql.DataFrameReader.text" title="pyspark.sql.DataFrameReader.text"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameReader.text</span></code></a>(paths[, wholetext, …])</p></td> |
| <td><p>Loads text files and returns a <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a> whose schema starts with a string column named “value”, and followed by partitioned columns if there are any.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.bucketBy.html#pyspark.sql.DataFrameWriter.bucketBy" title="pyspark.sql.DataFrameWriter.bucketBy"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.bucketBy</span></code></a>(numBuckets, col, *cols)</p></td> |
| <td><p>Buckets the output by the given columns.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.csv.html#pyspark.sql.DataFrameWriter.csv" title="pyspark.sql.DataFrameWriter.csv"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.csv</span></code></a>(path[, mode, …])</p></td> |
| <td><p>Saves the content of the <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a> in CSV format at the specified path.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.format.html#pyspark.sql.DataFrameWriter.format" title="pyspark.sql.DataFrameWriter.format"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.format</span></code></a>(source)</p></td> |
| <td><p>Specifies the underlying output data source.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.insertInto.html#pyspark.sql.DataFrameWriter.insertInto" title="pyspark.sql.DataFrameWriter.insertInto"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.insertInto</span></code></a>(tableName[, …])</p></td> |
| <td><p>Inserts the content of the <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a> to the specified table.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.jdbc.html#pyspark.sql.DataFrameWriter.jdbc" title="pyspark.sql.DataFrameWriter.jdbc"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.jdbc</span></code></a>(url, table[, mode, …])</p></td> |
| <td><p>Saves the content of the <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a> to an external database table via JDBC.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.json.html#pyspark.sql.DataFrameWriter.json" title="pyspark.sql.DataFrameWriter.json"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.json</span></code></a>(path[, mode, …])</p></td> |
| <td><p>Saves the content of the <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a> in JSON format (<a class="reference external" href="http://jsonlines.org/">JSON Lines text format or newline-delimited JSON</a>) at the specified path.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.mode.html#pyspark.sql.DataFrameWriter.mode" title="pyspark.sql.DataFrameWriter.mode"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.mode</span></code></a>(saveMode)</p></td> |
| <td><p>Specifies the behavior when data or table already exists.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.option.html#pyspark.sql.DataFrameWriter.option" title="pyspark.sql.DataFrameWriter.option"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.option</span></code></a>(key, value)</p></td> |
| <td><p>Adds an output option for the underlying data source.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.options.html#pyspark.sql.DataFrameWriter.options" title="pyspark.sql.DataFrameWriter.options"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.options</span></code></a>(**options)</p></td> |
| <td><p>Adds output options for the underlying data source.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.orc.html#pyspark.sql.DataFrameWriter.orc" title="pyspark.sql.DataFrameWriter.orc"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.orc</span></code></a>(path[, mode, …])</p></td> |
| <td><p>Saves the content of the <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a> in ORC format at the specified path.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.parquet.html#pyspark.sql.DataFrameWriter.parquet" title="pyspark.sql.DataFrameWriter.parquet"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.parquet</span></code></a>(path[, mode, …])</p></td> |
| <td><p>Saves the content of the <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a> in Parquet format at the specified path.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.partitionBy.html#pyspark.sql.DataFrameWriter.partitionBy" title="pyspark.sql.DataFrameWriter.partitionBy"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.partitionBy</span></code></a>(*cols)</p></td> |
| <td><p>Partitions the output by the given columns on the file system.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.save.html#pyspark.sql.DataFrameWriter.save" title="pyspark.sql.DataFrameWriter.save"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.save</span></code></a>([path, format, mode, …])</p></td> |
| <td><p>Saves the contents of the <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a> to a data source.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.saveAsTable.html#pyspark.sql.DataFrameWriter.saveAsTable" title="pyspark.sql.DataFrameWriter.saveAsTable"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.saveAsTable</span></code></a>(name[, format, …])</p></td> |
| <td><p>Saves the content of the <a class="reference internal" href="api/pyspark.sql.DataFrame.html#pyspark.sql.DataFrame" title="pyspark.sql.DataFrame"><code class="xref py py-class docutils literal notranslate"><span class="pre">DataFrame</span></code></a> as the specified table.</p></td> |
| </tr> |
| <tr class="row-odd"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.sortBy.html#pyspark.sql.DataFrameWriter.sortBy" title="pyspark.sql.DataFrameWriter.sortBy"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.sortBy</span></code></a>(col, *cols)</p></td> |
| <td><p>Sorts the output in each bucket by the given columns on the file system.</p></td> |
| </tr> |
| <tr class="row-even"><td><p><a class="reference internal" href="api/pyspark.sql.DataFrameWriter.text.html#pyspark.sql.DataFrameWriter.text" title="pyspark.sql.DataFrameWriter.text"><code class="xref py py-obj docutils literal notranslate"><span class="pre">DataFrameWriter.text</span></code></a>(path[, compression, …])</p></td> |
| <td><p>Saves the content of the DataFrame in a text file at the specified path.</p></td> |
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