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

Add INCLUDING CONSTRAINTS to CREATE TABLE LIKE.

Browse Source 
Greg Stark
This commit is contained in:
Bruce Momjian
2006-06-27 03:43:20 +00:00
parent 62f2693688
commit dc2c25fc62
12 changed files with 206 additions and 39 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
doc/src/sgml/ref/create_table.sgml
View File

@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/create_table.sgml,v 1.100 2006/02/19 00:04:26 neilc Exp $
$PostgreSQL: pgsql/doc/src/sgml/ref/create_table.sgml,v 1.101 2006/06/27 03:43:19 momjian Exp $
PostgreSQL documentation
-->
@ -23,7 +23,7 @@ PostgreSQL documentation
CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } ] TABLE <replaceable class="PARAMETER">table_name</replaceable> ( [
{ <replaceable class="PARAMETER">column_name</replaceable> <replaceable class="PARAMETER">data_type</replaceable> [ DEFAULT <replaceable>default_expr</> ] [ <replaceable class="PARAMETER">column_constraint</replaceable> [ ... ] ]
| <replaceable>table_constraint</replaceable>
| LIKE <replaceable>parent_table</replaceable> [ { INCLUDING | EXCLUDING } DEFAULTS ] }
| LIKE <replaceable>parent_table</replaceable> [ { INCLUDING | EXCLUDING } { DEFAULTS | CONSTRAINTS } ] ... }
[, ... ]
] )
[ INHERITS ( <replaceable>parent_table</replaceable> [, ... ] ) ]
@ -232,7 +232,7 @@ and <replaceable class="PARAMETER">table_constraint</replaceable> is:
</varlistentry>
<varlistentry>
<term><literal>LIKE <replaceable>parent_table</replaceable> [ { INCLUDING | EXCLUDING } DEFAULTS ]</literal></term>
<term><literal>LIKE <replaceable>parent_table</replaceable> [ { INCLUDING | EXCLUDING } { DEFAULTS | CONSTRAINTS } ]</literal></term>
<listitem>
<para>
The <literal>LIKE</literal> clause specifies a table from which
@ -252,6 +252,20 @@ and <replaceable class="PARAMETER">table_constraint</replaceable> is:
default behavior is to exclude default expressions, resulting in
all columns of the new table having null defaults.
</para>
<para>
Likewise constraints for the copied column definitions will only be
copied if <literal>INCLUDING CONSTRAINTS</literal> is specified. Note
that currently even when <literal>INCLUDING CONSTRAINTS</literal> is specified
only CHECK constraints are copied. Also, no distinction is made between
column constraints and table constraints -- when constraints are
requested all check constraints are copied.
</para>
<para>
Note also that unlike <literal>INHERITS<literal> copied columns and
constraints are not merged with similarly named columns and constraints.
If the same name is specified explicitly or in another
<literal>LIKE</literal> clause an error is signalled.
</para>
</listitem>
</varlistentry>