Make T_CoalesceExpr executable on a foreign server

From: p(dot)gilev(at)postgrespro(dot)ru
To: pgsql-hackers(at)lists(dot)postgresql(dot)org
Subject: Make T_CoalesceExpr executable on a foreign server
Date: 2026-01-27 04:33:59
Message-ID: c5e5295c31a9ce9e93822ddf754cf952@postgrespro.ru
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Hello.
Currently, T_CoalesceExpr is not executable on the foreign server.
This functionality could be useful and the fix appears to be
straightforward.

The proposed modification extends foreign_expr_walker to handle
T_CoalesceExpr node, deparseCoalesceExpr is added to
deparseExpr. A test case for COALESCE is also included.

Regards,
Pavel

Attachment Content-Type Size
coalesce.patch text/x-diff 4.7 KB

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