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Doc: include MERGE in variable substitution command list

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Backpatch to 15, where MERGE was introduced.

Reported-by: <emorgunov@mail.ru>
Author: David Rowley <dgrowleyml@gmail.com>
Discussion: https://postgr.es/m/176278494385.770.15550176063450771532@wrigleys.postgresql.org
Backpatch-through: 15
This commit is contained in:
David Rowley
2025-11-17 10:51:26 +13:00
parent 23792d7381
commit 2b54a1abdb
1 changed files with 7 additions and 7 deletions
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14
doc/src/sgml/plpgsql.sgml
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@@ -4962,13 +4962,13 @@ $$ LANGUAGE plpgsql;
<para> <para>
Variable substitution currently works only in <command>SELECT</command>, Variable substitution currently works only in <command>SELECT</command>,
<command>INSERT</command>, <command>UPDATE</command>, <command>INSERT</command>, <command>UPDATE</command>,
<command>DELETE</command>, and commands containing one of <command>DELETE</command>, <command>MERGE</command> and commands
these (such as <command>EXPLAIN</command> and <command>CREATE TABLE containing one of these (such as <command>EXPLAIN</command> and
... AS SELECT</command>), <command>CREATE TABLE ... AS SELECT</command>), because the main SQL
because the main SQL engine allows query parameters only in these engine allows query parameters only in these commands. To use a
commands. To use a non-constant name or value in other statement non-constant name or value in other statement types (generically called
types (generically called utility statements), you must construct utility statements), you must construct the utility statement as a string
the utility statement as a string and <command>EXECUTE</command> it. and <command>EXECUTE</command> it.
</para> </para>
</sect2> </sect2>