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From: Alvaro Herrera <alvherre@2ndquadrant.com>
To: Justin Pryzby <pryzby@telsasoft.com>
Cc: Amit Langote <amitlangote09@gmail.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: PostgreSQL Hackers <pgsql-hackers@lists.postgresql.org>
Subject: Re: DETACH PARTITION and FOR EACH ROW triggers on partitioned tables
Date: Tue, 21 Apr 2020 12:20:38 -0400
Message-ID: <20200421162038.GA18628@alvherre.pgsql> (raw)
In-Reply-To: <20200421154553.GA21155@alvherre.pgsql>

I think I also owe the attached doc updates.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

Attachments:

doc.patch (text/x-diff, 3.2K) download diff --git a/doc/src/sgml/ref/alter_table.sgml b/doc/src/sgml/ref/alter_table.sgml index 7595e609b5..233905552c 100644 --- a/doc/src/sgml/ref/alter_table.sgml +++ b/doc/src/sgml/ref/alter_table.sgml @@ -869,13 +869,15 @@ WITH ( MODULUS <replaceable class="parameter">numeric_literal</replaceable>, REM one will be created in the attached table; or, if an equivalent index already exists, it will be attached to the target table's index, as if <command>ALTER INDEX ATTACH PARTITION</command> had been executed. Note that if the existing table is a foreign table, it is currently not allowed to attach the table as a partition of the target table if there are <literal>UNIQUE</literal> indexes on the target table. (See also - <xref linkend="sql-createforeigntable"/>.) + <xref linkend="sql-createforeigntable"/>.) For each user-defined + row-level trigger that exists in the target table, a corresponding one + is created in the attached table. </para> <para> A partition using <literal>FOR VALUES</literal> uses same syntax for <replaceable class="parameter">partition_bound_spec</replaceable> as <xref linkend="sql-createtable"/>. The partition bound specification @@ -941,13 +943,14 @@ WITH ( MODULUS <replaceable class="parameter">numeric_literal</replaceable>, REM <term><literal>DETACH PARTITION</literal> <replaceable class="parameter">partition_name</replaceable></term> <listitem> <para> This form detaches specified partition of the target table. The detached partition continues to exist as a standalone table, but no longer has any ties to the table from which it was detached. Any indexes that were - attached to the target table's indexes are detached. + attached to the target table's indexes are detached. Any triggers that + were created to mirror those in the target table are removed. </para> </listitem> </varlistentry> </variablelist> </para> diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml index 155866c7c8..c49c770dd0 100644 --- a/doc/src/sgml/ref/create_table.sgml +++ b/doc/src/sgml/ref/create_table.sgml @@ -396,13 +396,15 @@ WITH ( MODULUS <replaceable class="parameter">numeric_literal</replaceable>, REM <term><literal>PARTITION OF <replaceable class="parameter">parent_table</replaceable> { FOR VALUES <replaceable class="parameter">partition_bound_spec</replaceable> | DEFAULT }</literal></term> <listitem> <para> Creates the table as a <firstterm>partition</firstterm> of the specified parent table. The table can be created either as a partition for specific values using <literal>FOR VALUES</literal> or as a default partition - using <literal>DEFAULT</literal>. + using <literal>DEFAULT</literal>. Any indexes, constraints and + user-defined row-level triggers that exist in the parent table are cloned + on the new partition. </para> <para> The <replaceable class="parameter">partition_bound_spec</replaceable> must correspond to the partitioning method and partition key of the parent table, and must not overlap with any existing partition of that

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Message-ID: <20200421162038.GA18628@alvherre.pgsql>
Permalink:  ../20200421162038.GA18628@alvherre.pgsql/
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  To: pgsql-hackers@postgresql.org
  Cc: alvherre@2ndquadrant.com, pryzby@telsasoft.com, amitlangote09@gmail.com, tgl@sss.pgh.pa.us, pgsql-hackers@lists.postgresql.org
  Subject: Re: DETACH PARTITION and FOR EACH ROW triggers on partitioned tables
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