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

Hi hackers,

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.

Cheers,

Ilmari

-- 
"I use RMS as a guide in the same way that a boat captain would use
 a lighthouse.  It's good to know where it is, but you generally
 don't want to find yourself in the same spot." - Tollef Fog Heen

From ac727e99d6f06a82d6ba9a7927fed8ce179dac3f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dagfinn=20Ilmari=20Manns=C3=A5ker?= <ilmari@ilmari.org>
Date: Wed, 1 Feb 2017 17:39:43 +0000
Subject: [PATCH] Add tab completion for DEALLOCATE

EXECUTE already tab-completes the list of prepared statements, but
DEALLOCATE did not.
---
 src/bin/psql/tab-complete.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/bin/psql/tab-complete.c b/src/bin/psql/tab-complete.c
index d6fffcf42f..4a7bfe844a 100644
--- a/src/bin/psql/tab-complete.c
+++ b/src/bin/psql/tab-complete.c
@@ -2575,8 +2575,8 @@ psql_completion(const char *text, int start, int end)
     else if (Matches5("DROP", "RULE", MatchAny, "ON", MatchAny))
         COMPLETE_WITH_LIST2("CASCADE", "RESTRICT");
 
-/* EXECUTE */
-    else if (Matches1("EXECUTE"))
+/* EXECUTE && DEALLOCATE */
+    else if (Matches1("EXECUTE|DEALLOCATE"))
         COMPLETE_WITH_QUERY(Query_for_list_of_prepared_statements);
 
 /* EXPLAIN */
-- 
2.11.0


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ilmari@ilmari.org (Dagfinn Ilmari Mannsåker) 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.
        regards, tom lane

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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ilmari@ilmari.org (Dagfinn Ilmari Manns�ker) writes:

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

I've added this to the current commit fest:
https://commitfest.postgresql.org/13/1043/

-- 
"I use RMS as a guide in the same way that a boat captain would usea lighthouse.  It's good to know where it is, but
yougenerallydon't want to find yourself in the same spot." - Tollef Fog Heen
 

On 2/27/17 06:34, Dagfinn Ilmari Mannsåker wrote:
> ilmari@ilmari.org (Dagfinn Ilmari Manns�ker) writes:
> 
>> Here's an updated patch wich adds it as a separate stanza.
> 
> I've added this to the current commit fest:
> https://commitfest.postgresql.org/13/1043/

committed

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