diff options
Diffstat (limited to 'doc/src/sgml/ref/create_table.sgml')
| -rw-r--r-- | doc/src/sgml/ref/create_table.sgml | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml index 9a29b645aae..2a33de6dfb5 100644 --- a/doc/src/sgml/ref/create_table.sgml +++ b/doc/src/sgml/ref/create_table.sgml @@ -1,5 +1,5 @@ <!-- -$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_table.sgml,v 1.68 2003/05/04 00:03:55 tgl Exp $ +$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_table.sgml,v 1.69 2003/06/12 07:49:43 momjian Exp $ PostgreSQL documentation --> @@ -18,7 +18,8 @@ PostgreSQL documentation <synopsis> 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> } [, ... ] + | <replaceable>table_constraint</replaceable> + | LIKE <replaceable>parent_table</replaceable> [ { INCLUDING | EXCLUDING } DEFAULTS ] } [, ... ] ) [ INHERITS ( <replaceable>parent_table</replaceable> [, ... ] ) ] [ WITH OIDS | WITHOUT OIDS ] @@ -173,6 +174,26 @@ and <replaceable class="PARAMETER">table_constraint</replaceable> is: </varlistentry> <varlistentry> + <term><literal>LIKE <replaceable>parent_table</replaceable> [ { INCLUDING | EXCLUDING } DEFAULTS ]</literal></term> + <listitem> + <para> + The <literal>LIKE</literal> clause specifies a table from which + the new table automatically inherits all column names, their datatypes, and + <literal>NOT NULL</literal> constraints. + </para> + <para> + Unlike <literal>INHERITS</literal>, the new table and inherited table + are complete decoupled after creation has been completed. Data inserted + into the new table will not be reflected into the parent table. + </para> + <para> + Default expressions for the inherited column definitions will only be included if + <literal>INCLUDING DEFAULTS</literal> is specified. The default is to exclude + default expressions. + </listitem> + </varlistentry> + + <varlistentry> <term><literal>INHERITS ( <replaceable>parent_table</replaceable> [, ... ] )</literal></term> <listitem> <para> |