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Add SQL99 CONVERT() function.

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This commit is contained in:
Tatsuo Ishii
2002-08-06 05:40:47 +00:00
parent 34f03b1630
commit 6206a880cf
15 changed files with 1237 additions and 211 deletions
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414
doc/src/sgml/func.sgml
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@ -1,5 +1,5 @@
<!--
$Header: /cvsroot/pgsql/doc/src/sgml/func.sgml,v 1.107 2002/08/04 19:51:30 momjian Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/func.sgml,v 1.108 2002/08/06 05:40:44 ishii Exp $
PostgreSQL documentation
-->
@ -857,6 +857,19 @@ PostgreSQL documentation
<entry><literal>4</literal></entry>
</row>
<row>
<entry><function>convert</function>(<parameter>string</parameter>
using <parameter>conversion_name</parameter>)</entry>
<entry><type>text</type></entry>
<entry>Change encoding using specified conversion name.
Conversions can be defined by <command>CREATE CONVERSION</command>.
Also there are some pre-defined conversion names.
See <xref linkend="conversion-names"> for available
conversion names. </entry>
<entry><literal>convert('PostgreSQL' using iso8859_1_to_utf8)</literal></entry>
<entry><literal>'PostgreSQL' in UNICODE(UTF-8) encoding</literal></entry>
</row>
<row>
<entry><function>lower</function>(<parameter>string</parameter>)</entry>
<entry><type>text</type></entry>
@ -947,6 +960,405 @@ PostgreSQL documentation
</tgroup>
</table>
<table id="conversion-names">
<title>Available conversion names</title>
<tgroup cols="3">
<thead>
<row>
<entry>conversion</entry>
<entry>source encoding</entry>
<entry>destination encoding</entry>
</row>
</thead>
<tbody>
<row>
<entry>ascii_to_utf8</entry>
<entry>SQL_ASCII</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>big5_to_euc_tw</entry>
<entry>BIG5</entry>
<entry>EUC_TW</entry>
</row>
<row>
<entry>big5_to_mic</entry>
<entry>BIG5</entry>
<entry>MULE_INTERNAL</entry>
</row>
<row>
<entry>big5_to_utf8</entry>
<entry>BIG5</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>euc_cn_to_utf8</entry>
<entry>EUC_CN</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>euc_jp_to_mic</entry>
<entry>EUC_JP</entry>
<entry>MULE_INTERNAL</entry>
</row>
<row>
<entry>euc_jp_to_sjis</entry>
<entry>EUC_JP</entry>
<entry>SJIS</entry>
</row>
<row>
<entry>euc_jp_to_utf8</entry>
<entry>EUC_JP</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>euc_kr_to_utf8</entry>
<entry>EUC_KR</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>euc_tw_to_big5</entry>
<entry>EUC_TW</entry>
<entry>BIG5</entry>
</row>
<row>
<entry>euc_tw_to_mic</entry>
<entry>EUC_TW</entry>
<entry>MULE_INTERNAL</entry>
</row>
<row>
<entry>euc_tw_to_utf8</entry>
<entry>EUC_TW</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>gb18030_to_utf8</entry>
<entry>GB18030</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>gbk_to_utf8</entry>
<entry>GBK</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_10_to_utf8</entry>
<entry>LATIN6</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_13_to_utf8</entry>
<entry>LATIN7</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_14_to_utf8</entry>
<entry>LATIN8</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_15_to_utf8</entry>
<entry>LATIN9</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_16_to_utf8</entry>
<entry>LATIN10</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_1_to_utf8</entry>
<entry>LATIN1</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_2_to_utf8</entry>
<entry>LATIN2</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_3_to_utf8</entry>
<entry>LATIN3</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_4_to_utf8</entry>
<entry>LATIN4</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_5_to_utf8</entry>
<entry>ISO_8859_5</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_6_to_utf8</entry>
<entry>ISO_8859_6</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_7_to_utf8</entry>
<entry>ISO_8859_7</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_8_to_utf8</entry>
<entry>ISO_8859_8</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>iso8859_9_to_utf8</entry>
<entry>LATIN5</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>johab_to_utf8</entry>
<entry>JOHAB</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>mic_to_big5</entry>
<entry>MULE_INTERNAL</entry>
<entry>BIG5</entry>
</row>
<row>
<entry>mic_to_euc_jp</entry>
<entry>MULE_INTERNAL</entry>
<entry>EUC_JP</entry>
</row>
<row>
<entry>mic_to_euc_tw</entry>
<entry>MULE_INTERNAL</entry>
<entry>EUC_TW</entry>
</row>
<row>
<entry>mic_to_sjis</entry>
<entry>MULE_INTERNAL</entry>
<entry>SJIS</entry>
</row>
<row>
<entry>sjis_to_euc_jp</entry>
<entry>SJIS</entry>
<entry>EUC_JP</entry>
</row>
<row>
<entry>sjis_to_mic</entry>
<entry>SJIS</entry>
<entry>MULE_INTERNAL</entry>
</row>
<row>
<entry>sjis_to_utf8</entry>
<entry>SJIS</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>tcvn_to_utf8</entry>
<entry>TCVN</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>uhc_to_utf8</entry>
<entry>UHC</entry>
<entry>UNICODE</entry>
</row>
<row>
<entry>utf8_to_ascii</entry>
<entry>UNICODE</entry>
<entry>SQL_ASCII</entry>
</row>
<row>
<entry>utf8_to_big5</entry>
<entry>UNICODE</entry>
<entry>BIG5</entry>
</row>
<row>
<entry>utf8_to_euc_cn</entry>
<entry>UNICODE</entry>
<entry>EUC_CN</entry>
</row>
<row>
<entry>utf8_to_euc_jp</entry>
<entry>UNICODE</entry>
<entry>EUC_JP</entry>
</row>
<row>
<entry>utf8_to_euc_kr</entry>
<entry>UNICODE</entry>
<entry>EUC_KR</entry>
</row>
<row>
<entry>utf8_to_euc_tw</entry>
<entry>UNICODE</entry>
<entry>EUC_TW</entry>
</row>
<row>
<entry>utf8_to_gb18030</entry>
<entry>UNICODE</entry>
<entry>GB18030</entry>
</row>
<row>
<entry>utf8_to_gbk</entry>
<entry>UNICODE</entry>
<entry>GBK</entry>
</row>
<row>
<entry>utf8_to_iso8859_1</entry>
<entry>UNICODE</entry>
<entry>LATIN1</entry>
</row>
<row>
<entry>utf8_to_iso8859_10</entry>
<entry>UNICODE</entry>
<entry>LATIN6</entry>
</row>
<row>
<entry>utf8_to_iso8859_13</entry>
<entry>UNICODE</entry>
<entry>LATIN7</entry>
</row>
<row>
<entry>utf8_to_iso8859_14</entry>
<entry>UNICODE</entry>
<entry>LATIN8</entry>
</row>
<row>
<entry>utf8_to_iso8859_15</entry>
<entry>UNICODE</entry>
<entry>LATIN9</entry>
</row>
<row>
<entry>utf8_to_iso8859_16</entry>
<entry>UNICODE</entry>
<entry>LATIN10</entry>
</row>
<row>
<entry>utf8_to_iso8859_2</entry>
<entry>UNICODE</entry>
<entry>LATIN2</entry>
</row>
<row>
<entry>utf8_to_iso8859_3</entry>
<entry>UNICODE</entry>
<entry>LATIN3</entry>
</row>
<row>
<entry>utf8_to_iso8859_4</entry>
<entry>UNICODE</entry>
<entry>LATIN4</entry>
</row>
<row>
<entry>utf8_to_iso8859_5</entry>
<entry>UNICODE</entry>
<entry>ISO_8859_5</entry>
</row>
<row>
<entry>utf8_to_iso8859_6</entry>
<entry>UNICODE</entry>
<entry>ISO_8859_6</entry>
</row>
<row>
<entry>utf8_to_iso8859_7</entry>
<entry>UNICODE</entry>
<entry>ISO_8859_7</entry>
</row>
<row>
<entry>utf8_to_iso8859_8</entry>
<entry>UNICODE</entry>
<entry>ISO_8859_8</entry>
</row>
<row>
<entry>utf8_to_iso8859_9</entry>
<entry>UNICODE</entry>
<entry>LATIN5</entry>
</row>
<row>
<entry>utf8_to_johab</entry>
<entry>UNICODE</entry>
<entry>JOHAB</entry>
</row>
<row>
<entry>utf8_to_sjis</entry>
<entry>UNICODE</entry>
<entry>SJIS</entry>
</row>
<row>
<entry>utf8_to_tcvn</entry>
<entry>UNICODE</entry>
<entry>TCVN</entry>
</row>
<row>
<entry>utf8_to_uhc</entry>
<entry>UNICODE</entry>
<entry>UHC</entry>
</row>
</tbody>
</tgroup>
</table>
<para>
Additional string manipulation functions are available and are
listed below. Some of them are used internally to implement the