Re: [HACKERS] [PATCH] Add tab completion for DEALLOCATE

Tom Lane <tgl@sss.pgh.pa.us> writes:

> ilmari@ilmari.org (Dagfinn Ilmari =?utf-8?Q?Manns=C3=A5ker?=) writes:
>> While playing with prepared statements in psql, I noticed that EXECUTE
>> tab-completes the list of active prepared statements, but DEALLOCATE
>> does not.
>> Attached is a patch to fix this.
>
> Good idea, but I think it would be better to give DEALLOCATE its own
> entry in the list, so it could be placed in alphabetical order.

I was following the example from FETCH/MOVE further down to avoid
duplicating the body of the stanza, but I guess in this case it's simple
enough that it doesn't matter.

Here's an updated patch wich adds it as a separate stanza.

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From 8b5e4ed63e558475b193b1d668ed14baae0c497c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dagfinn=20Ilmari=20Manns=C3=A5ker?= <ilmari@ilmari.org>
Date: Thu, 2 Feb 2017 10:09:26 +0000
Subject: [PATCH] Add tab completion for DEALLOCATE

EXECUTE already tab-completes the list of prepared statements, but
DEALLOCATE was missing.
---
 src/bin/psql/tab-complete.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
index d6fffcf42f..539ab1afe2 100644
--- a/src/bin/psql/tab-complete.c
+++ b/src/bin/psql/tab-complete.c
@@ -2453,6 +2453,10 @@ psql_completion(const char *text, int start, int end)
     else if (Matches5("CREATE", "EVENT", "TRIGGER", MatchAny, "ON"))
         COMPLETE_WITH_LIST3("ddl_command_start", "ddl_command_end", "sql_drop");
 
+/* DEALLOCATE */
+    else if (Matches1("DEALLOCATE"))
+        COMPLETE_WITH_QUERY(Query_for_list_of_prepared_statements);
+
 /* DECLARE */
     else if (Matches2("DECLARE", MatchAny))
         COMPLETE_WITH_LIST5("BINARY", "INSENSITIVE", "SCROLL", "NO SCROLL",
-- 
2.11.0


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