Обсуждение: pgsql: Support INOUT arguments in procedures

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pgsql: Support INOUT arguments in procedures

От
Peter Eisentraut
Дата:
Support INOUT arguments in procedures

In a top-level CALL, the values of INOUT arguments will be returned as a
result row.  In PL/pgSQL, the values are assigned back to the input
arguments.  In other languages, the same convention as for return a
record from a function is used.  That does not require any code changes
in the PL implementations.

Reviewed-by: Pavel Stehule <pavel.stehule@gmail.com>

Branch
------
master

Details
-------
https://git.postgresql.org/pg/commitdiff/33803f67f1c4cb88733cce61207bbf2bd5b599cc

Modified Files
--------------
doc/src/sgml/plperl.sgml                           |  14 +++
doc/src/sgml/plpgsql.sgml                          |  16 +++
doc/src/sgml/plpython.sgml                         |  11 ++
doc/src/sgml/pltcl.sgml                            |  12 ++
doc/src/sgml/ref/call.sgml                         |   4 +
doc/src/sgml/ref/create_procedure.sgml             |   7 +-
src/backend/catalog/pg_proc.c                      |   4 +-
src/backend/commands/functioncmds.c                |  65 +++++++++--
src/backend/executor/functions.c                   |  51 +++++++++
src/backend/tcop/utility.c                         |   3 +-
src/backend/utils/fmgr/funcapi.c                   |  11 +-
src/include/commands/defrem.h                      |   3 +-
src/include/executor/functions.h                   |   2 +
src/include/funcapi.h                              |   3 +-
src/pl/plperl/expected/plperl_call.out             |  25 +++++
src/pl/plperl/sql/plperl_call.sql                  |  22 ++++
src/pl/plpgsql/src/expected/plpgsql_call.out       | 112 ++++++++++++++++++
.../plpgsql/src/expected/plpgsql_transaction.out   |   2 +-
src/pl/plpgsql/src/pl_comp.c                       |  10 +-
src/pl/plpgsql/src/pl_exec.c                       | 125 ++++++++++++++++++++-
src/pl/plpgsql/src/pl_funcs.c                      |  25 +++++
src/pl/plpgsql/src/pl_gram.y                       |  37 ++++--
src/pl/plpgsql/src/pl_scanner.c                    |   1 +
src/pl/plpgsql/src/plpgsql.h                       |  12 ++
src/pl/plpgsql/src/sql/plpgsql_call.sql            | 107 ++++++++++++++++++
src/pl/plpython/expected/plpython_call.out         |  23 ++++
src/pl/plpython/plpy_exec.c                        |  24 ++--
src/pl/plpython/sql/plpython_call.sql              |  20 ++++
src/pl/tcl/expected/pltcl_call.out                 |  26 +++++
src/pl/tcl/sql/pltcl_call.sql                      |  23 ++++
src/test/regress/expected/create_procedure.out     |  23 +++-
src/test/regress/sql/create_procedure.sql          |  19 ++++
32 files changed, 792 insertions(+), 50 deletions(-)


Re: pgsql: Support INOUT arguments in procedures

От
Erik Rijkers
Дата:
On 2018-03-14 17:09, Peter Eisentraut wrote:
> Support INOUT arguments in procedures
> 

gcc 6.3.0 (on debian stretch) mutters:

pl_exec.c: In function ‘exec_stmt_call’:
pl_exec.c:2089:10: warning: variable ‘numargs’ set but not used 
[-Wunused-but-set-variable]
     int   numargs;
           ^~~~~~~



Re: pgsql: Support INOUT arguments in procedures

От
Peter Eisentraut
Дата:
On 3/14/18 12:45, Erik Rijkers wrote:
> On 2018-03-14 17:09, Peter Eisentraut wrote:
>> Support INOUT arguments in procedures
> 
> gcc 6.3.0 (on debian stretch) mutters:
> 
> pl_exec.c: In function ‘exec_stmt_call’:
> pl_exec.c:2089:10: warning: variable ‘numargs’ set but not used 
> [-Wunused-but-set-variable]
>      int   numargs;
>            ^~~~~~~

I don't get that, and buildfarm animals of similar configuration don't
either.  Are you using a nonstandard configuration perhaps?

(I don't mind fixing it, but it'd be good to be able to reproduce it.)

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


Re: pgsql: Support INOUT arguments in procedures

От
Tom Lane
Дата:
Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
> On 3/14/18 12:45, Erik Rijkers wrote:
>> pl_exec.c: In function ‘exec_stmt_call’:
>> pl_exec.c:2089:10: warning: variable ‘numargs’ set but not used 
>> [-Wunused-but-set-variable]

> I don't get that, and buildfarm animals of similar configuration don't
> either.  Are you using a nonstandard configuration perhaps?

Not using --enable-cassert, evidently.  You need to add
PG_USED_FOR_ASSERTS_ONLY.

            regards, tom lane


Re: pgsql: Support INOUT arguments in procedures

От
Peter Eisentraut
Дата:
On 3/14/18 14:28, Tom Lane wrote:
> Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
>> On 3/14/18 12:45, Erik Rijkers wrote:
>>> pl_exec.c: In function ‘exec_stmt_call’:
>>> pl_exec.c:2089:10: warning: variable ‘numargs’ set but not used 
>>> [-Wunused-but-set-variable]
> 
>> I don't get that, and buildfarm animals of similar configuration don't
>> either.  Are you using a nonstandard configuration perhaps?
> 
> Not using --enable-cassert, evidently.  You need to add
> PG_USED_FOR_ASSERTS_ONLY.

OK, fixed.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services


Re: pgsql: Support INOUT arguments in procedures

От
Erik Rijkers
Дата:
On 2018-03-14 19:28, Tom Lane wrote:
> Peter Eisentraut <peter.eisentraut@2ndquadrant.com> writes:
>> On 3/14/18 12:45, Erik Rijkers wrote:
>>> pl_exec.c: In function ‘exec_stmt_call’:
>>> pl_exec.c:2089:10: warning: variable ‘numargs’ set but not used
>>> [-Wunused-but-set-variable]
> 
>> I don't get that, and buildfarm animals of similar configuration don't
>> either.  Are you using a nonstandard configuration perhaps?
> 
> Not using --enable-cassert, evidently.  You need to add
> PG_USED_FOR_ASSERTS_ONLY.

Yes, I always compile 2 binaries, one with asserts enabled and one 
without it; I guess I should have noticed that my other compile didn't 
give the warning.