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Commit6533062

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doc: Clarify status of SELECT INTO on reference page
The documentation as well as source code comments weren't entirelyclear whether SELECT INTO was truly deprecated (thus in theorydestined to be removed eventually), or just a less recommendedvariant. After discussion, it appears that other implementations alsouse SELECT INTO in direct SQL in a way similar to PostgreSQL, so itseems worth keeping it for compatibility. Update the language in thedocumentation to that effect.Discussion:https://www.postgresql.org/message-id/flat/96dc0df3-e13a-a85d-d045-d6e2c85218da%40enterprisedb.com
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‎doc/src/sgml/ref/select_into.sgml

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@@ -138,9 +138,11 @@ SELECT * INTO films_recent FROM films WHERE date_prod >= '2002-01-01';
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in <application>ECPG</application> (see <xref linkend="ecpg"/>) and
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<application>PL/pgSQL</application> (see <xref linkend="plpgsql"/>).
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The <productname>PostgreSQL</productname> usage of <command>SELECT
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INTO</command> to represent table creation is historical. It is
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best to use <command>CREATE TABLE AS</command> for this purpose in
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new code.
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INTO</command> to represent table creation is historical. Some other SQL
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implementations also use <command>SELECT INTO</command> in this way (but
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most SQL implementations support <command>CREATE TABLE AS</command>
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instead). Apart from such compatibility considerations, it is best to use
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<command>CREATE TABLE AS</command> for this purpose in new code.
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</para>
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</refsect1>
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