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<div class="title">tds_column Struct Reference</div> </div>
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<p>Metadata about columns in regular and compute rows.
<a href="a01133.html#details">More...</a></p>
<p><code>#include <<a class="el" href="a00434_source.html">tds.h</a>></code></p>
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Collaboration diagram for tds_column:</div>
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Public Attributes</h2></td></tr>
<tr class="memitem:a31708879692cd97cb3a72f8ca7940e00"><td class="memItemLeft" align="right" valign="top"><a id="a31708879692cd97cb3a72f8ca7940e00"></a>
<a class="el" href="a01125.html">BCPCOLDATA</a> * </td><td class="memItemRight" valign="bottom"><b>bcp_column_data</b></td></tr>
<tr class="separator:a31708879692cd97cb3a72f8ca7940e00"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a07d747c0592ff37eb467ba14c4dcaeb2"><td class="memItemLeft" align="right" valign="top">TDS_INT </td><td class="memItemRight" valign="bottom"><a class="el" href="a01133.html#a07d747c0592ff37eb467ba14c4dcaeb2">bcp_prefix_len</a></td></tr>
<tr class="memdesc:a07d747c0592ff37eb467ba14c4dcaeb2"><td class="mdescLeft"> </td><td class="mdescRight">The length, in bytes, of any length prefix this column may have. <a href="#a07d747c0592ff37eb467ba14c4dcaeb2">More...</a><br /></td></tr>
<tr class="separator:a07d747c0592ff37eb467ba14c4dcaeb2"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a175979a3a8954bf66040c2b9e6a2ac17"><td class="memItemLeft" align="right" valign="top"><a id="a175979a3a8954bf66040c2b9e6a2ac17"></a>
TDS_INT </td><td class="memItemRight" valign="bottom"><b>bcp_term_len</b></td></tr>
<tr class="separator:a175979a3a8954bf66040c2b9e6a2ac17"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a095352960fe21d89d77c05b3a9f1f26d"><td class="memItemLeft" align="right" valign="top"><a id="a095352960fe21d89d77c05b3a9f1f26d"></a>
TDS_CHAR * </td><td class="memItemRight" valign="bottom"><b>bcp_terminator</b></td></tr>
<tr class="separator:a095352960fe21d89d77c05b3a9f1f26d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab3afb8272401bdb51064cdf910334159"><td class="memItemLeft" align="right" valign="top"><a id="ab3afb8272401bdb51064cdf910334159"></a>
<a class="el" href="a00945.html">TDSICONV</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="a01133.html#ab3afb8272401bdb51064cdf910334159">char_conv</a></td></tr>
<tr class="memdesc:ab3afb8272401bdb51064cdf910334159"><td class="mdescLeft"> </td><td class="mdescRight">refers to previously allocated iconv information <br /></td></tr>
<tr class="separator:ab3afb8272401bdb51064cdf910334159"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9f60ba1cee60052957ebc8a87c611851"><td class="memItemLeft" align="right" valign="top"><a id="a9f60ba1cee60052957ebc8a87c611851"></a>
TDS_SMALLINT </td><td class="memItemRight" valign="bottom"><b>column_bindfmt</b></td></tr>
<tr class="separator:a9f60ba1cee60052957ebc8a87c611851"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4072589acad96c0cf2570c19deca4705"><td class="memItemLeft" align="right" valign="top"><a id="a4072589acad96c0cf2570c19deca4705"></a>
TDS_UINT </td><td class="memItemRight" valign="bottom"><b>column_bindlen</b></td></tr>
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<tr class="memitem:a642e30115c5bfc0828ff91f5f30f7eba"><td class="memItemLeft" align="right" valign="top"><a id="a642e30115c5bfc0828ff91f5f30f7eba"></a>
TDS_SMALLINT </td><td class="memItemRight" valign="bottom"><b>column_bindtype</b></td></tr>
<tr class="separator:a642e30115c5bfc0828ff91f5f30f7eba"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3db89d652d698d148efe28794e2e527e"><td class="memItemLeft" align="right" valign="top"><a id="a3db89d652d698d148efe28794e2e527e"></a>
TDS_UCHAR </td><td class="memItemRight" valign="bottom"><b>column_collation</b> [5]</td></tr>
<tr class="separator:a3db89d652d698d148efe28794e2e527e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ada14ba479a67762fc1bef78910ef4beb"><td class="memItemLeft" align="right" valign="top">TDS_INT </td><td class="memItemRight" valign="bottom"><a class="el" href="a01133.html#ada14ba479a67762fc1bef78910ef4beb">column_cur_size</a></td></tr>
<tr class="memdesc:ada14ba479a67762fc1bef78910ef4beb"><td class="mdescLeft"> </td><td class="mdescRight">size written in variable (ie: char, text, binary). <a href="#ada14ba479a67762fc1bef78910ef4beb">More...</a><br /></td></tr>
<tr class="separator:ada14ba479a67762fc1bef78910ef4beb"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a76a3cc338a10f7b5469bed390cb0a917"><td class="memItemLeft" align="right" valign="top"><a id="a76a3cc338a10f7b5469bed390cb0a917"></a>
unsigned char * </td><td class="memItemRight" valign="bottom"><b>column_data</b></td></tr>
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<tr class="memitem:a93c32cded020fc8f99a8d73d926fddb5"><td class="memItemLeft" align="right" valign="top"><a id="a93c32cded020fc8f99a8d73d926fddb5"></a>
void(* </td><td class="memItemRight" valign="bottom"><b>column_data_free</b> )(struct <a class="el" href="a01133.html">tds_column</a> *column)</td></tr>
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<tr class="memitem:ad73507c219fe639a1989007c2f0e0993"><td class="memItemLeft" align="right" valign="top"><a id="ad73507c219fe639a1989007c2f0e0993"></a>
TDS_INT </td><td class="memItemRight" valign="bottom"><b>column_flags</b></td></tr>
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<tr class="memitem:afc974e7f96be44e9b0042ef6c0479a5c"><td class="memItemLeft" align="right" valign="top"><a id="afc974e7f96be44e9b0042ef6c0479a5c"></a>
unsigned int </td><td class="memItemRight" valign="bottom"><b>column_hidden</b>:1</td></tr>
<tr class="separator:afc974e7f96be44e9b0042ef6c0479a5c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a86d5a78cf688561a5d6e89d47029f86a"><td class="memItemLeft" align="right" valign="top"><a id="a86d5a78cf688561a5d6e89d47029f86a"></a>
unsigned int </td><td class="memItemRight" valign="bottom"><b>column_identity</b>:1</td></tr>
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<tr class="memitem:a9ed7d796eca0a7606c6b914e8fa28360"><td class="memItemLeft" align="right" valign="top"><a id="a9ed7d796eca0a7606c6b914e8fa28360"></a>
unsigned int </td><td class="memItemRight" valign="bottom"><b>column_key</b>:1</td></tr>
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TDS_INT * </td><td class="memItemRight" valign="bottom"><b>column_lenbind</b></td></tr>
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<tr class="memitem:a3a76ab11c39810673d9b32dea8acc178"><td class="memItemLeft" align="right" valign="top"><a id="a3a76ab11c39810673d9b32dea8acc178"></a>
<a class="el" href="a00434.html#afddddf5bd7ad223cadee3d3bdc899954">DSTR</a> </td><td class="memItemRight" valign="bottom"><b>column_name</b></td></tr>
<tr class="separator:a3a76ab11c39810673d9b32dea8acc178"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aae869137c65d87add8b1dcf7a387b2b9"><td class="memItemLeft" align="right" valign="top"><a id="aae869137c65d87add8b1dcf7a387b2b9"></a>
unsigned int </td><td class="memItemRight" valign="bottom"><b>column_nullable</b>:1</td></tr>
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<tr class="memitem:a1305fefbf84459f78d1d4223d134c875"><td class="memItemLeft" align="right" valign="top"><a id="a1305fefbf84459f78d1d4223d134c875"></a>
TDS_SMALLINT * </td><td class="memItemRight" valign="bottom"><b>column_nullbind</b></td></tr>
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<tr class="memitem:a314e3a06f9d9a39e264702d0d484bb58"><td class="memItemLeft" align="right" valign="top"><a id="a314e3a06f9d9a39e264702d0d484bb58"></a>
TDS_SMALLINT </td><td class="memItemRight" valign="bottom"><b>column_operand</b></td></tr>
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<tr class="memitem:a21170d5d0e0d24ea9e2cfa4ace1dcb26"><td class="memItemLeft" align="right" valign="top"><a id="a21170d5d0e0d24ea9e2cfa4ace1dcb26"></a>
TDS_TINYINT </td><td class="memItemRight" valign="bottom"><b>column_operator</b></td></tr>
<tr class="separator:a21170d5d0e0d24ea9e2cfa4ace1dcb26"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:abf4c4a1030ddca0e66cbded2802755bc"><td class="memItemLeft" align="right" valign="top"><a id="abf4c4a1030ddca0e66cbded2802755bc"></a>
unsigned int </td><td class="memItemRight" valign="bottom"><b>column_output</b>:1</td></tr>
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<tr class="memitem:a7ae346f8b1fdd364749825ca0863d166"><td class="memItemLeft" align="right" valign="top"><a id="a7ae346f8b1fdd364749825ca0863d166"></a>
TDS_TINYINT </td><td class="memItemRight" valign="bottom"><a class="el" href="a01133.html#a7ae346f8b1fdd364749825ca0863d166">column_prec</a></td></tr>
<tr class="memdesc:a7ae346f8b1fdd364749825ca0863d166"><td class="mdescLeft"> </td><td class="mdescRight">precision for decimal/numeric <br /></td></tr>
<tr class="separator:a7ae346f8b1fdd364749825ca0863d166"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab73b012b3a9f08da8661dc230ec17d7f"><td class="memItemLeft" align="right" valign="top"><a id="ab73b012b3a9f08da8661dc230ec17d7f"></a>
TDS_TINYINT </td><td class="memItemRight" valign="bottom"><a class="el" href="a01133.html#ab73b012b3a9f08da8661dc230ec17d7f">column_scale</a></td></tr>
<tr class="memdesc:ab73b012b3a9f08da8661dc230ec17d7f"><td class="mdescLeft"> </td><td class="mdescRight">scale for decimal/numeric <br /></td></tr>
<tr class="separator:ab73b012b3a9f08da8661dc230ec17d7f"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a2c2756c00a1099c82d4cfa4da2894672"><td class="memItemLeft" align="right" valign="top">TDS_INT </td><td class="memItemRight" valign="bottom"><a class="el" href="a01133.html#a2c2756c00a1099c82d4cfa4da2894672">column_size</a></td></tr>
<tr class="memdesc:a2c2756c00a1099c82d4cfa4da2894672"><td class="mdescLeft"> </td><td class="mdescRight">maximun size of data. <a href="#a2c2756c00a1099c82d4cfa4da2894672">More...</a><br /></td></tr>
<tr class="separator:a2c2756c00a1099c82d4cfa4da2894672"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af9bfdbfac29eb80d9a68fa07d0a9d850"><td class="memItemLeft" align="right" valign="top"><a id="af9bfdbfac29eb80d9a68fa07d0a9d850"></a>
TDS_INT </td><td class="memItemRight" valign="bottom"><b>column_text_sqlgetdatapos</b></td></tr>
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<tr class="memitem:aa35159e06d2dd719d3165eebf06a64b8"><td class="memItemLeft" align="right" valign="top"><a id="aa35159e06d2dd719d3165eebf06a64b8"></a>
TDS_CHAR </td><td class="memItemRight" valign="bottom"><b>column_text_sqlputdatainfo</b></td></tr>
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<tr class="memitem:a28006c44692c543787ea6c47e8032f02"><td class="memItemLeft" align="right" valign="top"><a id="a28006c44692c543787ea6c47e8032f02"></a>
TDS_INT </td><td class="memItemRight" valign="bottom"><b>column_textpos</b></td></tr>
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<tr class="memitem:a3b2a509a0822c1869296ff673268913b"><td class="memItemLeft" align="right" valign="top"><a id="a3b2a509a0822c1869296ff673268913b"></a>
unsigned int </td><td class="memItemRight" valign="bottom"><b>column_timestamp</b>:1</td></tr>
<tr class="separator:a3b2a509a0822c1869296ff673268913b"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7f08ecedc5835a4e81129c6b2b493947"><td class="memItemLeft" align="right" valign="top">TDS_SERVER_TYPE </td><td class="memItemRight" valign="bottom"><a class="el" href="a01133.html#a7f08ecedc5835a4e81129c6b2b493947">column_type</a></td></tr>
<tr class="memdesc:a7f08ecedc5835a4e81129c6b2b493947"><td class="mdescLeft"> </td><td class="mdescRight">This type can be different from wire type because conversion (e.g. <a href="#a7f08ecedc5835a4e81129c6b2b493947">More...</a><br /></td></tr>
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<tr class="memitem:ae2fa3c291b6de01b3cd636f5f2c699ba"><td class="memItemLeft" align="right" valign="top"><a id="ae2fa3c291b6de01b3cd636f5f2c699ba"></a>
TDS_INT </td><td class="memItemRight" valign="bottom"><b>column_usertype</b></td></tr>
<tr class="separator:ae2fa3c291b6de01b3cd636f5f2c699ba"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:ab879ef62d9961283ec2d78332582a6e2"><td class="memItemLeft" align="right" valign="top"><a id="ab879ef62d9961283ec2d78332582a6e2"></a>
TDS_CHAR * </td><td class="memItemRight" valign="bottom"><b>column_varaddr</b></td></tr>
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<tr class="memitem:a12914f03ee2f24fa3fe577060410770d"><td class="memItemLeft" align="right" valign="top"><a id="a12914f03ee2f24fa3fe577060410770d"></a>
TDS_TINYINT </td><td class="memItemRight" valign="bottom"><a class="el" href="a01133.html#a12914f03ee2f24fa3fe577060410770d">column_varint_size</a></td></tr>
<tr class="memdesc:a12914f03ee2f24fa3fe577060410770d"><td class="mdescLeft"> </td><td class="mdescRight">size of length when reading from wire (0, 1, 2 or 4) <br /></td></tr>
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<tr class="memitem:a720d0627e9afa2e5cf991dbc330e5caa"><td class="memItemLeft" align="right" valign="top"><a id="a720d0627e9afa2e5cf991dbc330e5caa"></a>
unsigned int </td><td class="memItemRight" valign="bottom"><b>column_writeable</b>:1</td></tr>
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<tr class="memitem:a438655277fa1124b9fc02b32b08c4257"><td class="memItemLeft" align="right" valign="top"><a id="a438655277fa1124b9fc02b32b08c4257"></a>
const <a class="el" href="a01129.html">TDSCOLUMNFUNCS</a> * </td><td class="memItemRight" valign="bottom"><b>funcs</b></td></tr>
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<tr class="memitem:a6a67dd17c9e6f97313850e10def1dcea"><td class="memItemLeft" ><a id="a6a67dd17c9e6f97313850e10def1dcea"></a>
struct {</td></tr>
<tr class="memitem:a331cf599fecc0490df3a873d679e8541"><td class="memItemLeft" >
   TDS_INT   <b>column_size</b></td></tr>
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<tr class="memitem:a157d78aea49c64999765e1deeab3c34a"><td class="memItemLeft" >
   TDS_SERVER_TYPE   <a class="el" href="a01133.html#a7f08ecedc5835a4e81129c6b2b493947">column_type</a></td></tr>
<tr class="memdesc:a157d78aea49c64999765e1deeab3c34a"><td class="mdescLeft"> </td><td class="mdescRight">type of data, saved from wire <br /></td></tr>
<tr class="separator:a157d78aea49c64999765e1deeab3c34a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a6a67dd17c9e6f97313850e10def1dcea"><td class="memItemLeft" valign="top">} </td><td class="memItemRight" valign="bottom"><b>on_server</b></td></tr>
<tr class="separator:a6a67dd17c9e6f97313850e10def1dcea"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a7891234bee6a743fb99bc609801c6fdc"><td class="memItemLeft" align="right" valign="top"><a id="a7891234bee6a743fb99bc609801c6fdc"></a>
<a class="el" href="a00434.html#afddddf5bd7ad223cadee3d3bdc899954">DSTR</a> </td><td class="memItemRight" valign="bottom"><b>table_column_name</b></td></tr>
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<a class="el" href="a00434.html#afddddf5bd7ad223cadee3d3bdc899954">DSTR</a> </td><td class="memItemRight" valign="bottom"><b>table_name</b></td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Metadata about columns in regular and compute rows. </p>
</div><h2 class="groupheader">Member Data Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#a07d747c0592ff37eb467ba14c4dcaeb2">§ </a></span>bcp_prefix_len</h2>
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<td class="memname">TDS_INT tds_column::bcp_prefix_len</td>
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<p>The length, in bytes, of any length prefix this column may have. </p>
<p>For example, strings in some non-C programming languages are made up of a one-byte length prefix, followed by the string data itself. If the data do not have a length prefix, set prefixlen to 0. Currently not very used in code, however do not remove. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#ada14ba479a67762fc1bef78910ef4beb">§ </a></span>column_cur_size</h2>
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<td class="memname">TDS_INT tds_column::column_cur_size</td>
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<p>size written in variable (ie: char, text, binary). </p>
<p>-1 if NULL. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2c2756c00a1099c82d4cfa4da2894672">§ </a></span>column_size</h2>
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<p>maximun size of data. </p>
<p>For fixed is the size. </p>
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<h2 class="memtitle"><span class="permalink"><a href="#a7f08ecedc5835a4e81129c6b2b493947">§ </a></span>column_type</h2>
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<td class="memname">TDS_SERVER_TYPE tds_column::column_type</td>
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<p>This type can be different from wire type because conversion (e.g. </p>
<p>type of data, saved from wire</p>
<p>UCS-2->Ascii) can be applied. I'm beginning to wonder about the wisdom of this, however. April 2003 jkl </p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>include/freetds/<a class="el" href="a00434_source.html">tds.h</a></li>
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