2000-01-05 18:32:18 +01:00
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--
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-- CREATE_FUNCTION_1
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--
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2002-08-22 02:01:51 +02:00
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CREATE FUNCTION widget_in(cstring)
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1997-04-27 04:58:38 +02:00
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RETURNS widget
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/regress@DLSUFFIX@'
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2014-11-05 17:44:06 +01:00
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LANGUAGE C STRICT IMMUTABLE;
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2003-07-28 02:09:16 +02:00
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NOTICE: type "widget" is not yet defined
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2003-07-19 01:20:33 +02:00
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DETAIL: Creating a shell type definition.
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2002-08-22 02:01:51 +02:00
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CREATE FUNCTION widget_out(widget)
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RETURNS cstring
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/regress@DLSUFFIX@'
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2014-11-05 17:44:06 +01:00
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LANGUAGE C STRICT IMMUTABLE;
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2003-07-19 01:20:33 +02:00
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NOTICE: argument type widget is only a shell
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2002-08-22 02:01:51 +02:00
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CREATE FUNCTION int44in(cstring)
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RETURNS city_budget
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/regress@DLSUFFIX@'
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2014-11-05 17:44:06 +01:00
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LANGUAGE C STRICT IMMUTABLE;
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2003-07-28 02:09:16 +02:00
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NOTICE: type "city_budget" is not yet defined
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2003-07-19 01:20:33 +02:00
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DETAIL: Creating a shell type definition.
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2002-08-22 02:01:51 +02:00
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CREATE FUNCTION int44out(city_budget)
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RETURNS cstring
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/regress@DLSUFFIX@'
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2014-11-05 17:44:06 +01:00
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LANGUAGE C STRICT IMMUTABLE;
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2003-07-19 01:20:33 +02:00
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NOTICE: argument type city_budget is only a shell
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2000-01-05 18:32:18 +01:00
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CREATE FUNCTION check_primary_key ()
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2002-08-22 02:01:51 +02:00
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RETURNS trigger
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/refint@DLSUFFIX@'
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2006-02-27 17:09:50 +01:00
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LANGUAGE C;
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2000-01-05 18:32:18 +01:00
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CREATE FUNCTION check_foreign_key ()
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2002-08-22 02:01:51 +02:00
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RETURNS trigger
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/refint@DLSUFFIX@'
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2006-02-27 17:09:50 +01:00
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LANGUAGE C;
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2000-01-05 18:32:18 +01:00
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CREATE FUNCTION autoinc ()
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2002-08-22 02:01:51 +02:00
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RETURNS trigger
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/autoinc@DLSUFFIX@'
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2006-02-27 17:09:50 +01:00
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LANGUAGE C;
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2000-01-05 18:32:18 +01:00
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CREATE FUNCTION funny_dup17 ()
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2002-08-22 02:01:51 +02:00
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RETURNS trigger
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/regress@DLSUFFIX@'
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2006-02-27 17:09:50 +01:00
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LANGUAGE C;
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2000-01-05 18:32:18 +01:00
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CREATE FUNCTION ttdummy ()
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2002-08-22 02:01:51 +02:00
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RETURNS trigger
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/regress@DLSUFFIX@'
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2006-02-27 17:09:50 +01:00
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LANGUAGE C;
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2000-01-05 18:32:18 +01:00
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CREATE FUNCTION set_ttdummy (int4)
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1997-09-24 10:36:47 +02:00
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RETURNS int4
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/regress@DLSUFFIX@'
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2006-02-27 17:09:50 +01:00
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LANGUAGE C STRICT;
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2013-07-02 19:35:14 +02:00
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CREATE FUNCTION make_tuple_indirect (record)
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RETURNS record
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AS '@libdir@/regress@DLSUFFIX@'
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LANGUAGE C STRICT;
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Add a basic atomic ops API abstracting away platform/architecture details.
Several upcoming performance/scalability improvements require atomic
operations. This new API avoids the need to splatter compiler and
architecture dependent code over all the locations employing atomic
ops.
For several of the potential usages it'd be problematic to maintain
both, a atomics using implementation and one using spinlocks or
similar. In all likelihood one of the implementations would not get
tested regularly under concurrency. To avoid that scenario the new API
provides a automatic fallback of atomic operations to spinlocks. All
properties of atomic operations are maintained. This fallback -
obviously - isn't as fast as just using atomic ops, but it's not bad
either. For one of the future users the atomics ontop spinlocks
implementation was actually slightly faster than the old purely
spinlock using implementation. That's important because it reduces the
fear of regressing older platforms when improving the scalability for
new ones.
The API, loosely modeled after the C11 atomics support, currently
provides 'atomic flags' and 32 bit unsigned integers. If the platform
efficiently supports atomic 64 bit unsigned integers those are also
provided.
To implement atomics support for a platform/architecture/compiler for
a type of atomics 32bit compare and exchange needs to be
implemented. If available and more efficient native support for flags,
32 bit atomic addition, and corresponding 64 bit operations may also
be provided. Additional useful atomic operations are implemented
generically ontop of these.
The implementation for various versions of gcc, msvc and sun studio have
been tested. Additional existing stub implementations for
* Intel icc
* HUPX acc
* IBM xlc
are included but have never been tested. These will likely require
fixes based on buildfarm and user feedback.
As atomic operations also require barriers for some operations the
existing barrier support has been moved into the atomics code.
Author: Andres Freund with contributions from Oskari Saarenmaa
Reviewed-By: Amit Kapila, Robert Haas, Heikki Linnakangas and Álvaro Herrera
Discussion: CA+TgmoYBW+ux5-8Ja=Mcyuy8=VXAnVRHp3Kess6Pn3DMXAPAEA@mail.gmail.com,
20131015123303.GH5300@awork2.anarazel.de,
20131028205522.GI20248@awork2.anarazel.de
2014-09-25 23:49:05 +02:00
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CREATE FUNCTION test_atomic_ops()
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RETURNS bool
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AS '@libdir@/regress@DLSUFFIX@'
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LANGUAGE C;
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2002-05-22 19:21:02 +02:00
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-- Things that shouldn't work:
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2006-02-27 17:09:50 +01:00
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE SQL
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2002-05-22 19:21:02 +02:00
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AS 'SELECT ''not an integer'';';
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2003-07-19 01:20:33 +02:00
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ERROR: return type mismatch in function declared to return integer
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2007-06-18 23:40:58 +02:00
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DETAIL: Actual return type is unknown.
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2004-03-14 02:58:41 +01:00
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CONTEXT: SQL function "test1"
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2006-02-27 17:09:50 +01:00
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE SQL
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2002-05-22 19:21:02 +02:00
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AS 'not even SQL';
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2006-03-14 23:48:25 +01:00
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ERROR: syntax error at or near "not"
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2004-03-21 23:29:11 +01:00
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LINE 2: AS 'not even SQL';
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^
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2006-02-27 17:09:50 +01:00
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE SQL
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2002-05-22 19:21:02 +02:00
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AS 'SELECT 1, 2, 3;';
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2003-07-19 01:20:33 +02:00
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ERROR: return type mismatch in function declared to return integer
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2008-10-31 20:37:56 +01:00
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DETAIL: Final statement must return exactly one column.
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2004-03-14 02:58:41 +01:00
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CONTEXT: SQL function "test1"
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2006-02-27 17:09:50 +01:00
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE SQL
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2002-05-22 19:21:02 +02:00
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AS 'SELECT $2;';
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2003-07-19 01:20:33 +02:00
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ERROR: there is no parameter $2
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2008-09-01 22:42:46 +02:00
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LINE 2: AS 'SELECT $2;';
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^
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2006-02-27 17:09:50 +01:00
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE SQL
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2002-05-22 19:21:02 +02:00
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AS 'a', 'b';
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2003-07-19 01:20:33 +02:00
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ERROR: only one AS item needed for language "sql"
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2006-02-27 17:09:50 +01:00
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE C
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2002-05-22 19:21:02 +02:00
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AS 'nosuchfile';
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2003-07-19 01:20:33 +02:00
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ERROR: could not access file "nosuchfile": No such file or directory
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2006-02-27 17:09:50 +01:00
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE C
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2008-10-02 00:38:57 +02:00
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AS '@libdir@/regress@DLSUFFIX@', 'nosuchsymbol';
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ERROR: could not find function "nosuchsymbol" in file "@libdir@/regress@DLSUFFIX@"
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2002-05-22 19:21:02 +02:00
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CREATE FUNCTION test1 (int) RETURNS int LANGUAGE internal
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AS 'nosuch';
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ERROR: there is no built-in function named "nosuch"
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