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# gpudb::ShowWalRequest

> gpudb::ShowWalRequest — Kinetica C++ API

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    <p>A set of parameters for <a className="el" href="/content/api/cpp/classgpudb_1_1GPUdb#ad5bf0a554a3e41a63719b512f4c202d9">GPUdb::showWal</a>. <a href="#details">More...</a></p>
    <p><code>#include \<<a className="el" href="/content/api/cpp/show__wal_8h_source">gpudb/protocol/show\_wal.h</a>></code></p>

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          <h2 className="groupheader"> Public Member Functions</h2>
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        <td className="memItemLeft" align="right" valign="top"> </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a424bfbc9a48819ccf2ca2f7e7a5e79ec">ShowWalRequest</a> ()</td>
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      <tr className="memdesc:a424bfbc9a48819ccf2ca2f7e7a5e79ec">
        <td className="mdescLeft"> </td>
        <td className="mdescRight">Constructs a <a className="el" href="/content/api/cpp/structgpudb_1_1ShowWalRequest" title="A set of parameters for GPUdb::showWal.">ShowWalRequest</a> object with default parameters. <br /></td>
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        <td className="memItemLeft" align="right" valign="top"> </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a920486d313a938efb8334e4e2970332a">ShowWalRequest</a> (const std::vector\< std::string > \&tableNames\_, const std::map\< std::string, std::string > \&options\_)</td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">Constructs a <a className="el" href="/content/api/cpp/structgpudb_1_1ShowWalRequest" title="A set of parameters for GPUdb::showWal.">ShowWalRequest</a> object with the specified parameters. <br /></td>
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          <h2 className="groupheader"> Public Attributes</h2>
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        <td className="memItemLeft" align="right" valign="top">std::vector\< std::string > </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a8e80b78facbdc84548b88ecded0cb2d9">tableNames</a></td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">List of tables to query. <br /></td>
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        <td className="memItemLeft" align="right" valign="top">std::map\< std::string, std::string > </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a0d1e7e361f9c3e9aeeccd87ecc537977">options</a></td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">Optional parameters. <br /></td>
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    <h2 className="groupheader">Detailed Description</h2>

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      <p>A set of parameters for <a className="el" href="/content/api/cpp/classgpudb_1_1GPUdb#ad5bf0a554a3e41a63719b512f4c202d9">GPUdb::showWal</a>. </p>
      <p>Requests table write-ahead log (WAL) properties. Returns information about the requested table WAL entries. </p>
      <p className="definition">Definition at line <a className="el" href="/content/api/cpp/show__wal_8h_source#l00018">18</a> of file <a className="el" href="/content/api/cpp/show__wal_8h_source">show\_wal.h</a>.</p>
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    <h2 className="groupheader">Constructor & Destructor Documentation</h2>
    <h2 className="memtitle"><span className="permalink"><a href="#a424bfbc9a48819ccf2ca2f7e7a5e79ec">◆ </a></span>ShowWalRequest() <span className="overload">\[1/2]</span></h2>

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                  <td className="memname">gpudb::ShowWalRequest::ShowWalRequest </td>
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                  <td>)</td>

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        <p>Constructs a <a className="el" href="/content/api/cpp/structgpudb_1_1ShowWalRequest" title="A set of parameters for GPUdb::showWal.">ShowWalRequest</a> object with default parameters. </p>
        <p className="definition">Definition at line <a className="el" href="/content/api/cpp/show__wal_8h_source#l00023">23</a> of file <a className="el" href="/content/api/cpp/show__wal_8h_source">show\_wal.h</a>.</p>
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    <h2 className="memtitle"><span className="permalink"><a href="#a920486d313a938efb8334e4e2970332a">◆ </a></span>ShowWalRequest() <span className="overload">\[2/2]</span></h2>

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                  <td className="memname">gpudb::ShowWalRequest::ShowWalRequest </td>
                  <td>(</td>
                  <td className="paramtype">const std::vector\< std::string > &</td>
                  <td className="paramname"><span className="paramname"><span className="em">tableNames\_</span></span>, </td>
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                  <td className="paramtype">const std::map\< std::string, std::string > &</td>
                  <td className="paramname"><span className="paramname"><span className="em">options\_</span></span> )</td>
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        <p>Constructs a <a className="el" href="/content/api/cpp/structgpudb_1_1ShowWalRequest" title="A set of parameters for GPUdb::showWal.">ShowWalRequest</a> object with the specified parameters. </p>

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                <td className="paramdir">\[in]</td>
                <td className="paramname">tableNames\_</td>
                <td>List of tables to query. An asterisk returns all tables. </td>
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                <td className="paramdir">\[in]</td>
                <td className="paramname">options\_</td>

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                  Optional parameters.

                  <ul>
                    <li>
                      <a className="el" href="/content/api/cpp/namespacegpudb#a7d7dabbaf85f5d4a800d086c78c317ee">show\_wal\_show\_settings</a>: If <a className="el" href="/content/api/cpp/namespacegpudb#a63617edea045707fb79da999e08dfb14">true</a> include a map of the WAL settings for the requested tables. Supported values:

                      <ul>
                        <li> <a className="el" href="/content/api/cpp/namespacegpudb#a63617edea045707fb79da999e08dfb14">show\_wal\_true</a> </li>
                        <li> <a className="el" href="/content/api/cpp/namespacegpudb#a276b631f1c7f67b28ead3c7da577dbc1">show\_wal\_false</a> </li>
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                      The default value is <a className="el" href="/content/api/cpp/namespacegpudb#a63617edea045707fb79da999e08dfb14">show\_wal\_true</a>.
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                  The default value is an empty map.
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        <p className="definition">Definition at line <a className="el" href="/content/api/cpp/show__wal_8h_source#l00053">53</a> of file <a className="el" href="/content/api/cpp/show__wal_8h_source">show\_wal.h</a>.</p>
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    <h2 className="groupheader">Member Data Documentation</h2>
    <h2 className="memtitle"><span className="permalink"><a href="#a0d1e7e361f9c3e9aeeccd87ecc537977">◆ </a></span>options</h2>

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            <td className="memname">std::map\<std::string, std::string> gpudb::ShowWalRequest::options</td>
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        <p>Optional parameters. </p>

        <ul>
          <li>
            <a className="el" href="/content/api/cpp/namespacegpudb#a7d7dabbaf85f5d4a800d086c78c317ee">show\_wal\_show\_settings</a>: If <a className="el" href="/content/api/cpp/namespacegpudb#a63617edea045707fb79da999e08dfb14">true</a> include a map of the WAL settings for the requested tables. Supported values:

            <ul>
              <li> <a className="el" href="/content/api/cpp/namespacegpudb#a63617edea045707fb79da999e08dfb14">show\_wal\_true</a> </li>
              <li> <a className="el" href="/content/api/cpp/namespacegpudb#a276b631f1c7f67b28ead3c7da577dbc1">show\_wal\_false</a> </li>
            </ul>

            The default value is <a className="el" href="/content/api/cpp/namespacegpudb#a63617edea045707fb79da999e08dfb14">show\_wal\_true</a>.
          </li>
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        <p>The default value is an empty map. </p>
        <p className="definition">Definition at line <a className="el" href="/content/api/cpp/show__wal_8h_source#l00080">80</a> of file <a className="el" href="/content/api/cpp/show__wal_8h_source">show\_wal.h</a>.</p>
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    <h2 className="memtitle"><span className="permalink"><a href="#a8e80b78facbdc84548b88ecded0cb2d9">◆ </a></span>tableNames</h2>

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            <td className="memname">std::vector\<std::string> gpudb::ShowWalRequest::tableNames</td>
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        <p>List of tables to query. </p>
        <p>An asterisk returns all tables. </p>
        <p className="definition">Definition at line <a className="el" href="/content/api/cpp/show__wal_8h_source#l00062">62</a> of file <a className="el" href="/content/api/cpp/show__wal_8h_source">show\_wal.h</a>.</p>
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    The documentation for this struct was generated from the following file:

    <ul>
      <li>gpudb/protocol/<a className="el" href="/content/api/cpp/show__wal_8h_source">show\_wal.h</a></li>
    </ul>
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