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Clarify documentation that primary key and unique constraints are copied

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for CREATE TABLE LIKE ... INCLUDING INDEXES.

Per report from david.sahagian@emc.com
This commit is contained in:
Bruce Momjian
2012-08-26 16:33:11 -04:00
parent 9e9a5b71d5
commit de87d47044
1 changed files with 7 additions and 10 deletions
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17
doc/src/sgml/ref/create_table.sgml
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@ -336,16 +336,13 @@ CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXI
</para>
<para>
Not-null constraints are always copied to the new table.
<literal>CHECK</literal> constraints will only be copied if
<literal>INCLUDING CONSTRAINTS</literal> is specified; other types of
constraints will never be copied. Also, no distinction is made between
column constraints and table constraints &mdash; when constraints are
requested, all check constraints are copied.
</para>
<para>
Any indexes on the original table will not be created on the new
table, unless the <literal>INCLUDING INDEXES</literal> clause is
specified.
<literal>CHECK</literal> constraints will be copied only if
<literal>INCLUDING CONSTRAINTS</literal> is specified.
Indexes, <literal>PRIMARY KEY</>, and <literal>UNIQUE</> constraints
on the original table will be created on the new table only if the
<literal>INCLUDING INDEXES</literal> clause is specified.
No distinction is made between column constraints and table
constraints.
</para>
<para><literal>STORAGE</> settings for the copied column definitions will only
be copied if <literal>INCLUDING STORAGE</literal> is specified. The