database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-30 11:03:19 +03:00
Code Activity

Remove obsolete pg_attrdef.adsrc column

Browse Source 
This has been deprecated and effectively unused for a long time.

Reviewed-by: Alvaro Herrera <alvherre@2ndquadrant.com>
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
This commit is contained in:
Peter Eisentraut
2018-10-27 11:25:20 +01:00
parent 8a99f8a827
commit fe5038236c
4 changed files with 4 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
doc/src/sgml/catalogs.sgml
View File

@ -947,27 +947,13 @@
<entry><structfield>adbin</structfield></entry>
<entry><type>pg_node_tree</type></entry>
<entry></entry>
<entry>The internal representation of the column default value</entry>
</row>
<row>
<entry><structfield>adsrc</structfield></entry>
<entry><type>text</type></entry>
<entry></entry>
<entry>A human-readable representation of the default value</entry>
<entry>The column default value, in <function>nodeToString()</function>
representation. Use <literal>pg_get_expr(adbin, adrelid)</literal> to
convert it to an SQL expression.</entry>
</row>
</tbody>
</tgroup>
</table>
<para>
The <structfield>adsrc</structfield> field is historical, and is best
not used, because it does not track outside changes that might affect
the representation of the default value. Reverse-compiling the
<structfield>adbin</structfield> field (with <function>pg_get_expr</function> for
example) is a better way to display the default value.
</para>
</sect1>