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<section id="pyarrow-parquet-write-table">
<h1>pyarrow.parquet.write_table<a class="headerlink" href="#pyarrow-parquet-write-table" title="Permalink to this heading">#</a></h1>
<dl class="py function">
<dt class="sig sig-object py" id="pyarrow.parquet.write_table">
<span class="sig-prename descclassname"><span class="pre">pyarrow.parquet.</span></span><span class="sig-name descname"><span class="pre">write_table</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">table</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">where</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">row_group_size</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">version</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'2.6'</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">use_dictionary</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">compression</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'snappy'</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">write_statistics</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">use_deprecated_int96_timestamps</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">coerce_timestamps</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">allow_truncated_timestamps</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">data_page_size</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">flavor</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">filesystem</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">compression_level</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">use_byte_stream_split</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">column_encoding</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">data_page_version</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'1.0'</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">use_compliant_nested_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">encryption_properties</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">write_batch_size</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dictionary_pagesize_limit</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">store_schema</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">write_page_index</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">write_page_checksum</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">sorting_columns</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="reference internal" href="../../_modules/pyarrow/parquet/core.html#write_table"><span class="viewcode-link"><span class="pre">[source]</span></span></a><a class="headerlink" href="#pyarrow.parquet.write_table" title="Permalink to this definition">#</a></dt>
<dd><p>Write a Table to Parquet format.</p>
<dl class="field-list">
<dt class="field-odd">Parameters<span class="colon">:</span></dt>
<dd class="field-odd"><dl>
<dt><strong>table</strong><span class="classifier"><a class="reference internal" href="pyarrow.Table.html#pyarrow.Table" title="pyarrow.Table"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pyarrow.Table</span></code></a></span></dt><dd></dd>
<dt><strong>where</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">str</span></code></a> or <a class="reference internal" href="pyarrow.NativeFile.html#pyarrow.NativeFile" title="pyarrow.NativeFile"><code class="xref py py-obj docutils literal notranslate"><span class="pre">pyarrow.NativeFile</span></code></a></span></dt><dd></dd>
<dt><strong>row_group_size</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a></span></dt><dd><p>Maximum number of rows in each written row group. If None, the
row group size will be the minimum of the Table size and
1024 * 1024.</p>
</dd>
<dt><strong>version</strong><span class="classifier">{“1.0”, “2.4”, “2.6”}, default “2.6”</span></dt><dd><p>Determine which Parquet logical types are available for use, whether the
reduced set from the Parquet 1.x.x format or the expanded logical types
added in later format versions.
Files written with version=’2.4’ or ‘2.6’ may not be readable in all
Parquet implementations, so version=’1.0’ is likely the choice that
maximizes file compatibility.
UINT32 and some logical types are only available with version ‘2.4’.
Nanosecond timestamps are only available with version ‘2.6’.
Other features such as compression algorithms or the new serialized
data page format must be enabled separately (see ‘compression’ and
‘data_page_version’).</p>
</dd>
<dt><strong>use_dictionary</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a> or <a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">list</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">True</span></code></a></span></dt><dd><p>Specify if we should use dictionary encoding in general or only for
some columns.
When encoding the column, if the dictionary size is too large, the
column will fallback to <code class="docutils literal notranslate"><span class="pre">PLAIN</span></code> encoding. Specially, <code class="docutils literal notranslate"><span class="pre">BOOLEAN</span></code> type
doesn’t support dictionary encoding.</p>
</dd>
<dt><strong>compression</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">str</span></code></a> or <a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">dict</span></code></a>, default ‘snappy’</span></dt><dd><p>Specify the compression codec, either on a general basis or per-column.
Valid values: {‘NONE’, ‘SNAPPY’, ‘GZIP’, ‘BROTLI’, ‘LZ4’, ‘ZSTD’}.</p>
</dd>
<dt><strong>write_statistics</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a> or <a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">list</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">True</span></code></a></span></dt><dd><p>Specify if we should write statistics in general (default is True) or only
for some columns.</p>
</dd>
<dt><strong>use_deprecated_int96_timestamps</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Write timestamps to INT96 Parquet format. Defaults to False unless enabled
by flavor argument. This take priority over the coerce_timestamps option.</p>
</dd>
<dt><strong>coerce_timestamps</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">str</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Cast timestamps to a particular resolution. If omitted, defaults are chosen
depending on <cite>version</cite>. By default, for <code class="docutils literal notranslate"><span class="pre">version='1.0'</span></code> (the default)
and <code class="docutils literal notranslate"><span class="pre">version='2.4'</span></code>, nanoseconds are cast to microseconds (‘us’), while
for other <cite>version</cite> values, they are written natively without loss
of resolution. Seconds are always cast to milliseconds (‘ms’) by default,
as Parquet does not have any temporal type with seconds resolution.
If the casting results in loss of data, it will raise an exception
unless <code class="docutils literal notranslate"><span class="pre">allow_truncated_timestamps=True</span></code> is given.
Valid values: {None, ‘ms’, ‘us’}</p>
</dd>
<dt><strong>allow_truncated_timestamps</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>Allow loss of data when coercing timestamps to a particular
resolution. E.g. if microsecond or nanosecond data is lost when coercing to
‘ms’, do not raise an exception. Passing <code class="docutils literal notranslate"><span class="pre">allow_truncated_timestamp=True</span></code>
will NOT result in the truncation exception being ignored unless
<code class="docutils literal notranslate"><span class="pre">coerce_timestamps</span></code> is not None.</p>
</dd>
<dt><strong>data_page_size</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Set a target threshold for the approximate encoded size of data
pages within a column chunk (in bytes). If None, use the default data page
size of 1MByte.</p>
</dd>
<dt><strong>flavor</strong><span class="classifier">{‘spark’}, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Sanitize schema or set other compatibility options to work with
various target systems.</p>
</dd>
<dt><strong>filesystem</strong><span class="classifier"><a class="reference internal" href="pyarrow.fs.FileSystem.html#pyarrow.fs.FileSystem" title="pyarrow.fs.FileSystem"><code class="xref py py-obj docutils literal notranslate"><span class="pre">FileSystem</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>If nothing passed, will be inferred from <cite>where</cite> if path-like, else
<cite>where</cite> is already a file-like object so no filesystem is needed.</p>
</dd>
<dt><strong>compression_level</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a> or <a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">dict</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Specify the compression level for a codec, either on a general basis or
per-column. If None is passed, arrow selects the compression level for
the compression codec in use. The compression level has a different
meaning for each codec, so you have to read the documentation of the
codec you are using.
An exception is thrown if the compression codec does not allow specifying
a compression level.</p>
</dd>
<dt><strong>use_byte_stream_split</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a> or <a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#list" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">list</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>Specify if the byte_stream_split encoding should be used in general or
only for some columns. If both dictionary and byte_stream_stream are
enabled, then dictionary is preferred.
The byte_stream_split encoding is valid only for floating-point data types
and should be combined with a compression codec.</p>
</dd>
<dt><strong>column_encoding</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#str" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">str</span></code></a> or <a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#dict" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">dict</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Specify the encoding scheme on a per column basis.
Can only be used when <code class="docutils literal notranslate"><span class="pre">use_dictionary</span></code> is set to False, and
cannot be used in combination with <code class="docutils literal notranslate"><span class="pre">use_byte_stream_split</span></code>.
Currently supported values: {‘PLAIN’, ‘BYTE_STREAM_SPLIT’,
‘DELTA_BINARY_PACKED’, ‘DELTA_LENGTH_BYTE_ARRAY’, ‘DELTA_BYTE_ARRAY’}.
Certain encodings are only compatible with certain data types.
Please refer to the encodings section of <a class="reference external" href="https://arrow.apache.org/docs/cpp/parquet.html#encodings">Reading and writing Parquet
files</a>.</p>
</dd>
<dt><strong>data_page_version</strong><span class="classifier">{“1.0”, “2.0”}, default “1.0”</span></dt><dd><p>The serialized Parquet data page format version to write, defaults to
1.0. This does not impact the file schema logical types and Arrow to
Parquet type casting behavior; for that use the “version” option.</p>
</dd>
<dt><strong>use_compliant_nested_type</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">True</span></code></a></span></dt><dd><p>Whether to write compliant Parquet nested type (lists) as defined
<a class="reference external" href="https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#nested-types">here</a>, defaults to <code class="docutils literal notranslate"><span class="pre">True</span></code>.
For <code class="docutils literal notranslate"><span class="pre">use_compliant_nested_type=True</span></code>, this will write into a list
with 3-level structure where the middle level, named <code class="docutils literal notranslate"><span class="pre">list</span></code>,
is a repeated group with a single field named <code class="docutils literal notranslate"><span class="pre">element</span></code>:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="nb">list</span><span class="o">-</span><span class="n">repetition</span><span class="o">&gt;</span> <span class="n">group</span> <span class="o">&lt;</span><span class="n">name</span><span class="o">&gt;</span> <span class="p">(</span><span class="n">LIST</span><span class="p">)</span> <span class="p">{</span>
<span class="n">repeated</span> <span class="n">group</span> <span class="nb">list</span> <span class="p">{</span>
<span class="o">&lt;</span><span class="n">element</span><span class="o">-</span><span class="n">repetition</span><span class="o">&gt;</span> <span class="o">&lt;</span><span class="n">element</span><span class="o">-</span><span class="nb">type</span><span class="o">&gt;</span> <span class="n">element</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span>
</pre></div>
</div>
<p>For <code class="docutils literal notranslate"><span class="pre">use_compliant_nested_type=False</span></code>, this will also write into a list
with 3-level structure, where the name of the single field of the middle
level <code class="docutils literal notranslate"><span class="pre">list</span></code> is taken from the element name for nested columns in Arrow,
which defaults to <code class="docutils literal notranslate"><span class="pre">item</span></code>:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="o">&lt;</span><span class="nb">list</span><span class="o">-</span><span class="n">repetition</span><span class="o">&gt;</span> <span class="n">group</span> <span class="o">&lt;</span><span class="n">name</span><span class="o">&gt;</span> <span class="p">(</span><span class="n">LIST</span><span class="p">)</span> <span class="p">{</span>
<span class="n">repeated</span> <span class="n">group</span> <span class="nb">list</span> <span class="p">{</span>
<span class="o">&lt;</span><span class="n">element</span><span class="o">-</span><span class="n">repetition</span><span class="o">&gt;</span> <span class="o">&lt;</span><span class="n">element</span><span class="o">-</span><span class="nb">type</span><span class="o">&gt;</span> <span class="n">item</span><span class="p">;</span>
<span class="p">}</span>
<span class="p">}</span>
</pre></div>
</div>
</dd>
<dt><strong>encryption_properties</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">FileEncryptionProperties</span></code>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>File encryption properties for Parquet Modular Encryption.
If None, no encryption will be done.
The encryption properties can be created using:
<code class="docutils literal notranslate"><span class="pre">CryptoFactory.file_encryption_properties()</span></code>.</p>
</dd>
<dt><strong>write_batch_size</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Number of values to write to a page at a time. If None, use the default of
1024. <code class="docutils literal notranslate"><span class="pre">write_batch_size</span></code> is complementary to <code class="docutils literal notranslate"><span class="pre">data_page_size</span></code>. If pages
are exceeding the <code class="docutils literal notranslate"><span class="pre">data_page_size</span></code> due to large column values, lowering
the batch size can help keep page sizes closer to the intended size.</p>
</dd>
<dt><strong>dictionary_pagesize_limit</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/functions.html#int" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">int</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Specify the dictionary page size limit per row group. If None, use the
default 1MB.</p>
</dd>
<dt><strong>store_schema</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#True" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">True</span></code></a></span></dt><dd><p>By default, the Arrow schema is serialized and stored in the Parquet
file metadata (in the “ARROW:schema” key). When reading the file,
if this key is available, it will be used to more faithfully recreate
the original Arrow data. For example, for tz-aware timestamp columns
it will restore the timezone (Parquet only stores the UTC values without
timezone), or columns with duration type will be restored from the int64
Parquet column.</p>
</dd>
<dt><strong>write_page_index</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>Whether to write a page index in general for all columns.
Writing statistics to the page index disables the old method of writing
statistics to each data page header. The page index makes statistics-based
filtering more efficient than the page header, as it gathers all the
statistics for a Parquet file in a single place, avoiding scattered I/O.
Note that the page index is not yet used on the read size by PyArrow.</p>
</dd>
<dt><strong>write_page_checksum</strong><span class="classifier"><a class="reference external" href="https://docs.python.org/3/library/stdtypes.html#bltin-boolean-values" title="(in Python v3.12)"><span class="xref std std-ref">bool</span></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#False" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">False</span></code></a></span></dt><dd><p>Whether to write page checksums in general for all columns.
Page checksums enable detection of data corruption, which might occur during
transmission or in the storage.</p>
</dd>
<dt><strong>sorting_columns</strong><span class="classifier"><code class="xref py py-obj docutils literal notranslate"><span class="pre">Sequence</span></code> of <a class="reference internal" href="pyarrow.parquet.SortingColumn.html#pyarrow.parquet.SortingColumn" title="pyarrow.parquet.SortingColumn"><code class="xref py py-obj docutils literal notranslate"><span class="pre">SortingColumn</span></code></a>, default <a class="reference external" href="https://docs.python.org/3/library/constants.html#None" title="(in Python v3.12)"><code class="docutils literal notranslate"><span class="pre">None</span></code></a></span></dt><dd><p>Specify the sort order of the data being written. The writer does not sort
the data nor does it verify that the data is sorted. The sort order is
written to the row group metadata, which can then be used by readers.</p>
</dd>
<dt><strong>**kwargs</strong><span class="classifier">optional</span></dt><dd><p>Additional options for ParquetWriter</p>
</dd>
</dl>
</dd>
</dl>
<p class="rubric">Examples</p>
<p>Generate an example PyArrow Table:</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">import</span> <span class="nn">pyarrow</span> <span class="k">as</span> <span class="nn">pa</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">table</span> <span class="o">=</span> <span class="n">pa</span><span class="o">.</span><span class="n">table</span><span class="p">({</span><span class="s1">&#39;n_legs&#39;</span><span class="p">:</span> <span class="p">[</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">4</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">100</span><span class="p">],</span>
<span class="gp">... </span> <span class="s1">&#39;animal&#39;</span><span class="p">:</span> <span class="p">[</span><span class="s2">&quot;Flamingo&quot;</span><span class="p">,</span> <span class="s2">&quot;Parrot&quot;</span><span class="p">,</span> <span class="s2">&quot;Dog&quot;</span><span class="p">,</span> <span class="s2">&quot;Horse&quot;</span><span class="p">,</span>
<span class="gp">... </span> <span class="s2">&quot;Brittle stars&quot;</span><span class="p">,</span> <span class="s2">&quot;Centipede&quot;</span><span class="p">]})</span>
</pre></div>
</div>
<p>and write the Table into Parquet file:</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="kn">import</span> <span class="nn">pyarrow.parquet</span> <span class="k">as</span> <span class="nn">pq</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">pq</span><span class="o">.</span><span class="n">write_table</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="s1">&#39;example.parquet&#39;</span><span class="p">)</span>
</pre></div>
</div>
<p>Defining row group size for the Parquet file:</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">pq</span><span class="o">.</span><span class="n">write_table</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="s1">&#39;example.parquet&#39;</span><span class="p">,</span> <span class="n">row_group_size</span><span class="o">=</span><span class="mi">3</span><span class="p">)</span>
</pre></div>
</div>
<p>Defining row group compression (default is Snappy):</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">pq</span><span class="o">.</span><span class="n">write_table</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="s1">&#39;example.parquet&#39;</span><span class="p">,</span> <span class="n">compression</span><span class="o">=</span><span class="s1">&#39;none&#39;</span><span class="p">)</span>
</pre></div>
</div>
<p>Defining row group compression and encoding per-column:</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">pq</span><span class="o">.</span><span class="n">write_table</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="s1">&#39;example.parquet&#39;</span><span class="p">,</span>
<span class="gp">... </span> <span class="n">compression</span><span class="o">=</span><span class="p">{</span><span class="s1">&#39;n_legs&#39;</span><span class="p">:</span> <span class="s1">&#39;snappy&#39;</span><span class="p">,</span> <span class="s1">&#39;animal&#39;</span><span class="p">:</span> <span class="s1">&#39;gzip&#39;</span><span class="p">},</span>
<span class="gp">... </span> <span class="n">use_dictionary</span><span class="o">=</span><span class="p">[</span><span class="s1">&#39;n_legs&#39;</span><span class="p">,</span> <span class="s1">&#39;animal&#39;</span><span class="p">])</span>
</pre></div>
</div>
<p>Defining column encoding per-column:</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">&gt;&gt;&gt; </span><span class="n">pq</span><span class="o">.</span><span class="n">write_table</span><span class="p">(</span><span class="n">table</span><span class="p">,</span> <span class="s1">&#39;example.parquet&#39;</span><span class="p">,</span>
<span class="gp">... </span> <span class="n">column_encoding</span><span class="o">=</span><span class="p">{</span><span class="s1">&#39;animal&#39;</span><span class="p">:</span><span class="s1">&#39;PLAIN&#39;</span><span class="p">},</span>
<span class="gp">... </span> <span class="n">use_dictionary</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
</pre></div>
</div>
</dd></dl>
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