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Clarify the allowed length of the text data type.

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Thomas G. Lockhart 2000-12-03 14:47:18 +00:00
parent 20efb264f6
commit 1131261270
1 changed files with 8 additions and 9 deletions
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17
doc/src/sgml/datatype.sgml
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@ -1,5 +1,5 @@
<!-- <!--
$Header: /cvsroot/pgsql/doc/src/sgml/datatype.sgml,v 1.42 2000/11/16 06:03:40 momjian Exp $ $Header: /cvsroot/pgsql/doc/src/sgml/datatype.sgml,v 1.43 2000/12/03 14:47:18 thomas Exp $
--> -->
<chapter id="datatype"> <chapter id="datatype">
@ -497,9 +497,9 @@ CREATE TABLE <replaceable class="parameter">tablename</replaceable> (<replaceabl
</row> </row>
<row> <row>
<entry>text</entry> <entry>text</entry>
<entry>(4+length) bytes</entry> <entry>(4+n) bytes</entry>
<entry>Best choice</entry> <entry>Most flexible</entry>
<entry>Variable-length</entry> <entry>Variable unlimited length</entry>
</row> </row>
<row> <row>
<entry>varchar(n)</entry> <entry>varchar(n)</entry>
@ -513,11 +513,10 @@ CREATE TABLE <replaceable class="parameter">tablename</replaceable> (<replaceabl
</para> </para>
<para> <para>
There is one other fixed-length character type in <productname>Postgres</productname>. There is one other fixed-length character type in <productname>Postgres</productname>.
The <type>name</type> type The <type>name</type> type exists <emphasis>only</emphasis> for
only has one purpose and that is for storage of internal catalog storage of internal catalog names and
names. is not intended for use by the general user.
It is not intended for use by the general user.
Its length is currently defined as 32 bytes (31 characters plus terminator) Its length is currently defined as 32 bytes (31 characters plus terminator)
but should be reference using NAMEDATALEN. but should be reference using NAMEDATALEN.
The length is set at compile time (and is therefore adjustable for The length is set at compile time (and is therefore adjustable for