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Fix handling of pg_type.typdefault per bug report from Dave Blasby.

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If there's anyone out there who's actually using datatype-defined
default values, this will be an incompatible change in behavior ...
but the old behavior was so broken that I doubt anyone was using it.
This commit is contained in:
Tom Lane
2001-09-06 02:07:42 +00:00
parent f2b604ecf4
commit 6c91eef7b7
11 changed files with 210 additions and 147 deletions
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12
doc/src/sgml/catalogs.sgml
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@ -1,6 +1,6 @@
<!--
Documentation of the system catalogs, directed toward PostgreSQL developers
$Header: /cvsroot/pgsql/doc/src/sgml/catalogs.sgml,v 2.22 2001/08/26 16:55:58 tgl Exp $
$Header: /cvsroot/pgsql/doc/src/sgml/catalogs.sgml,v 2.23 2001/09/06 02:07:41 tgl Exp $
-->
<chapter id="catalogs">
@ -243,7 +243,9 @@
<entry></entry>
<entry>
The initial value of the transition state. This is a text
field which will be cast to the type of aggtranstype.
field containing the initial value in its external string
representation. If the field is NULL, the transition state
value starts out NULL.
</entry>
</row>
</tbody>
@ -2071,7 +2073,11 @@
<entry>typdefault</entry>
<entry><type>text</type></entry>
<entry></entry>
<entry>???</entry>
<entry><para>
<structfield>typdefault</structfield> is NULL for types without a
default value. If it's not NULL, it contains the external string
representation of the type's default value.
</para></entry>
</row>
</tbody>
</tgroup>