> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kinetica.com/llms.txt
> Use this file to discover all available pages before exploring further.

# kinetica.AlterWalRequest.Options

> kinetica.AlterWalRequest.Options — Kinetica C# API

<div className="kinetica-doxygen">
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    <p>A set of string constants for the parameter <a className="el" href="/content/api/cs/classkinetica_1_1AlterWalRequest#af2c4182f430256c039449730ec7b83f3" title="Optional parameters.">AlterWalRequest.options</a>. <a href="#details">More...</a></p>

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            <div id="pub-static-attribs" />

            Static Public Attributes
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        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a836f6796d532f8e91a1f0d19fc9e559d">MAX\_SEGMENT\_SIZE</a> = "max\_segment\_size"</td>
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      <tr className="memdesc:a836f6796d532f8e91a1f0d19fc9e559d">
        <td className="mdescLeft"> </td>
        <td className="mdescRight">Maximum size of an individual segment file. <br /></td>
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      <tr className="memitem:a8cf0ab48a05ffd6aec28ab054b632e77" id="r_a8cf0ab48a05ffd6aec28ab054b632e77">
        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a8cf0ab48a05ffd6aec28ab054b632e77">SEGMENT\_COUNT</a> = "segment\_count"</td>
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      <tr className="memdesc:a8cf0ab48a05ffd6aec28ab054b632e77">
        <td className="mdescLeft"> </td>
        <td className="mdescRight">Approximate number of segment files to split the WAL across. <br /></td>
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      <tr className="memitem:a7147ad29c1e65e003a3169c6beab14e2" id="r_a7147ad29c1e65e003a3169c6beab14e2">
        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a7147ad29c1e65e003a3169c6beab14e2">SYNC\_POLICY</a> = "sync\_policy"</td>
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      <tr className="memdesc:a7147ad29c1e65e003a3169c6beab14e2">
        <td className="mdescLeft"> </td>
        <td className="mdescRight">Maximum size of an individual segment file. <br /></td>
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      <tr className="memitem:a0df15791ca417f5d749daa0f51a19a38" id="r_a0df15791ca417f5d749daa0f51a19a38">
        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a0df15791ca417f5d749daa0f51a19a38">NONE</a> = "none"</td>
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      <tr className="memdesc:a0df15791ca417f5d749daa0f51a19a38">
        <td className="mdescLeft"> </td>
        <td className="mdescRight">Disables the WAL. <br /></td>
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      <tr className="memitem:a4d26f0ca0392a810177f5d89b8d4d9bd" id="r_a4d26f0ca0392a810177f5d89b8d4d9bd">
        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a4d26f0ca0392a810177f5d89b8d4d9bd">BACKGROUND</a> = "background"</td>
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      <tr className="memdesc:a4d26f0ca0392a810177f5d89b8d4d9bd">
        <td className="mdescLeft"> </td>
        <td className="mdescRight">WAL entries are periodically written instead of immediately after each operation. <br /></td>
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        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#ada4d89882551f398d5f01cc262be31de">FLUSH</a> = "flush"</td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">Protects entries in the event of a database crash. <br /></td>
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        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a72d1781b47baab908255a9641b524543">FSYNC</a> = "fsync"</td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">Protects entries in the event of an OS crash. <br /></td>
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        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a81680ff046ef26fa162473e4c37e89c5">FLUSH\_FREQUENCY</a> = "flush\_frequency"</td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">Specifies how frequently WAL entries are written with background sync. <br /></td>
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        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a45d0de124d7060fb3ac75f18beef2d24">CHECKSUM</a> = "checksum"</td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">If <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> each entry will be checked against a protective checksum. <br /></td>
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        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> = "true"</td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">A boolean constant for the <a className="el" href="/content/api/cs/structkinetica_1_1AlterWalRequest_1_1Options" title="A set of string constants for the parameter AlterWalRequest.options.">AlterWalRequest.Options</a> options. <br /></td>
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        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a97c468b28c860708b0a081de7e340b07">FALSE</a> = "false"</td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">A boolean constant for the <a className="el" href="/content/api/cs/structkinetica_1_1AlterWalRequest_1_1Options" title="A set of string constants for the parameter AlterWalRequest.options.">AlterWalRequest.Options</a> options. <br /></td>
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        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#ae8ef7b4477483162f61b8dd4a5267665">OVERRIDE\_NON\_DEFAULT</a> = "override\_non\_default"</td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">If <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> tables with unique WAL settings will be overridden when applying a system level change. <br /></td>
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        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a993f4b146fbe957cb7e75e700e60fbfe">RESTORE\_SYSTEM\_SETTINGS</a> = "restore\_system\_settings"</td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">If <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> tables with unique WAL settings will be reverted to the current global settings. <br /></td>
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        <td className="memItemLeft" align="right" valign="top">const string </td>
        <td className="memItemRight" valign="bottom"><a className="el" href="#a7bad29895452731d5881cd43d8fbf5bf">PERSIST</a> = "persist"</td>
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        <td className="mdescLeft"> </td>
        <td className="mdescRight">If <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> and a system-level change was requested, the system configuration will be written to disk upon successful application of this request. <br /></td>
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    <div id="details" />

    <h2 className="groupheader">Detailed Description</h2>

    <div className="textblock">
      <p>A set of string constants for the parameter <a className="el" href="/content/api/cs/classkinetica_1_1AlterWalRequest#af2c4182f430256c039449730ec7b83f3" title="Optional parameters.">AlterWalRequest.options</a>. </p>
      <p>Optional parameters.</p>
      <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L22">22</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <h2 className="groupheader">Member Data Documentation</h2>

    <div id="a4d26f0ca0392a810177f5d89b8d4d9bd" />

    <h2 className="memtitle"><span className="permalink"><a href="#a4d26f0ca0392a810177f5d89b8d4d9bd">◆ </a></span>BACKGROUND</h2>

    <div className="memitem">
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                  <td className="memname">const string kinetica.AlterWalRequest.Options.BACKGROUND = "background"</td>
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            <td className="mlabels-right"> <span className="mlabels"><span className="mlabel static">static</span></span> </td>
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      <div className="memdoc">
        <p>WAL entries are periodically written instead of immediately after each operation. </p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L67">67</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <div id="a45d0de124d7060fb3ac75f18beef2d24" />

    <h2 className="memtitle"><span className="permalink"><a href="#a45d0de124d7060fb3ac75f18beef2d24">◆ </a></span>CHECKSUM</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.CHECKSUM = "checksum"</td>
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            <td className="mlabels-right"> <span className="mlabels"><span className="mlabel static">static</span></span> </td>
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        <p>If <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> each entry will be checked against a protective checksum. </p>
        <p>Supported values:</p>

        <ul>
          <li> <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> </li>
          <li> <a className="el" href="#a97c468b28c860708b0a081de7e340b07">FALSE</a> </li>
        </ul>

        <p>The default value is <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a>.</p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L97">97</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <h2 className="memtitle"><span className="permalink"><a href="#a97c468b28c860708b0a081de7e340b07">◆ </a></span>FALSE</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.FALSE = "false"</td>
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            <td className="mlabels-right"> <span className="mlabels"><span className="mlabel static">static</span></span> </td>
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      <div className="memdoc">
        <p>A boolean constant for the <a className="el" href="/content/api/cs/structkinetica_1_1AlterWalRequest_1_1Options" title="A set of string constants for the parameter AlterWalRequest.options.">AlterWalRequest.Options</a> options. </p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L105">105</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <div id="ada4d89882551f398d5f01cc262be31de" />

    <h2 className="memtitle"><span className="permalink"><a href="#ada4d89882551f398d5f01cc262be31de">◆ </a></span>FLUSH</h2>

    <div className="memitem">
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                  <td className="memname">const string kinetica.AlterWalRequest.Options.FLUSH = "flush"</td>
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            <td className="mlabels-right"> <span className="mlabels"><span className="mlabel static">static</span></span> </td>
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        <p>Protects entries in the event of a database crash. </p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L71">71</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <h2 className="memtitle"><span className="permalink"><a href="#a81680ff046ef26fa162473e4c37e89c5">◆ </a></span>FLUSH\_FREQUENCY</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.FLUSH\_FREQUENCY = "flush\_frequency"</td>
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            <td className="mlabels-right"> <span className="mlabels"><span className="mlabel static">static</span></span> </td>
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        <p>Specifies how frequently WAL entries are written with background sync. </p>
        <p>This is a global setting and can only be used with the system {"{"}options.table\_names{"}"} specifier '\*'.</p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L80">80</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <div id="a72d1781b47baab908255a9641b524543" />

    <h2 className="memtitle"><span className="permalink"><a href="#a72d1781b47baab908255a9641b524543">◆ </a></span>FSYNC</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.FSYNC = "fsync"</td>
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            <td className="mlabels-right"> <span className="mlabels"><span className="mlabel static">static</span></span> </td>
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        <p>Protects entries in the event of an OS crash. </p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L74">74</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <div id="a836f6796d532f8e91a1f0d19fc9e559d" />

    <h2 className="memtitle"><span className="permalink"><a href="#a836f6796d532f8e91a1f0d19fc9e559d">◆ </a></span>MAX\_SEGMENT\_SIZE</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.MAX\_SEGMENT\_SIZE = "max\_segment\_size"</td>
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        <p>Maximum size of an individual segment file. </p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L25">25</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <div id="a0df15791ca417f5d749daa0f51a19a38" />

    <h2 className="memtitle"><span className="permalink"><a href="#a0df15791ca417f5d749daa0f51a19a38">◆ </a></span>NONE</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.NONE = "none"</td>
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        <p>Disables the WAL. </p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L63">63</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <h2 className="memtitle"><span className="permalink"><a href="#ae8ef7b4477483162f61b8dd4a5267665">◆ </a></span>OVERRIDE\_NON\_DEFAULT</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.OVERRIDE\_NON\_DEFAULT = "override\_non\_default"</td>
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        <p>If <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> tables with unique WAL settings will be overridden when applying a system level change. </p>
        <p>Supported values:</p>

        <ul>
          <li> <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> </li>
          <li> <a className="el" href="#a97c468b28c860708b0a081de7e340b07">FALSE</a> </li>
        </ul>

        <p>The default value is <a className="el" href="#a97c468b28c860708b0a081de7e340b07">FALSE</a>.</p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L123">123</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <h2 className="memtitle"><span className="permalink"><a href="#a7bad29895452731d5881cd43d8fbf5bf">◆ </a></span>PERSIST</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.PERSIST = "persist"</td>
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        <p>If <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> and a system-level change was requested, the system configuration will be written to disk upon successful application of this request. </p>
        <p>This will commit the changes from this request and any additional in-memory modifications. Supported values:</p>

        <ul>
          <li> <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> </li>
          <li> <a className="el" href="#a97c468b28c860708b0a081de7e340b07">FALSE</a> </li>
        </ul>

        <p>The default value is <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a>.</p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L163">163</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <h2 className="memtitle"><span className="permalink"><a href="#a993f4b146fbe957cb7e75e700e60fbfe">◆ </a></span>RESTORE\_SYSTEM\_SETTINGS</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.RESTORE\_SYSTEM\_SETTINGS = "restore\_system\_settings"</td>
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        <p>If <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> tables with unique WAL settings will be reverted to the current global settings. </p>
        <p>Cannot be used in conjunction with any other option. Supported values:</p>

        <ul>
          <li> <a className="el" href="#a7d85772270ee04c20842e11ceb4246c5">TRUE</a> </li>
          <li> <a className="el" href="#a97c468b28c860708b0a081de7e340b07">FALSE</a> </li>
        </ul>

        <p>The default value is <a className="el" href="#a97c468b28c860708b0a081de7e340b07">FALSE</a>.</p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L142">142</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <h2 className="memtitle"><span className="permalink"><a href="#a8cf0ab48a05ffd6aec28ab054b632e77">◆ </a></span>SEGMENT\_COUNT</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.SEGMENT\_COUNT = "segment\_count"</td>
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        <p>Approximate number of segment files to split the WAL across. </p>
        <p>Must be at least two.</p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L30">30</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <h2 className="memtitle"><span className="permalink"><a href="#a7147ad29c1e65e003a3169c6beab14e2">◆ </a></span>SYNC\_POLICY</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.SYNC\_POLICY = "sync\_policy"</td>
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        <p>Maximum size of an individual segment file. </p>
        <p>Supported values:</p>

        <ul>
          <li> <a className="el" href="#a0df15791ca417f5d749daa0f51a19a38">NONE</a>: Disables the WAL. </li>
          <li> <a className="el" href="#a4d26f0ca0392a810177f5d89b8d4d9bd">BACKGROUND</a>: WAL entries are periodically written instead of immediately after each operation. </li>
          <li> <a className="el" href="#ada4d89882551f398d5f01cc262be31de">FLUSH</a>: Protects entries in the event of a database crash. </li>
          <li> <a className="el" href="#a72d1781b47baab908255a9641b524543">FSYNC</a>: Protects entries in the event of an OS crash. </li>
        </ul>

        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L60">60</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <h2 className="memtitle"><span className="permalink"><a href="#a7d85772270ee04c20842e11ceb4246c5">◆ </a></span>TRUE</h2>

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                  <td className="memname">const string kinetica.AlterWalRequest.Options.TRUE = "true"</td>
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        <p>A boolean constant for the <a className="el" href="/content/api/cs/structkinetica_1_1AlterWalRequest_1_1Options" title="A set of string constants for the parameter AlterWalRequest.options.">AlterWalRequest.Options</a> options. </p>
        <p className="definition">Definition at line <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs#L101">101</a> of file <a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a>.</p>
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    <hr />

    The documentation for this struct was generated from the following file:

    <ul>
      <li>Kinetica/Protocol/<a className="el" href="https://github.com/kineticadb/kinetica-api-cs/blob/master/Kinetica/Protocol/AlterWal.cs">AlterWal.cs</a></li>
    </ul>
  </div>
</div>


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