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Convert remaining builtin set-returning functions to use OUT parameters, making

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it possible to call them without specifying a column list.

Jaime Casanova
This commit is contained in:
Magnus Hagander 2008-08-25 11:18:43 +00:00
parent 31ad4e5396
commit 8c032adec4
4 changed files with 18 additions and 28 deletions
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20
src/backend/catalog/system_views.sql
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@ -3,7 +3,7 @@
* *
* Copyright (c) 1996-2008, PostgreSQL Global Development Group * Copyright (c) 1996-2008, PostgreSQL Global Development Group
* *
* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.53 2008/07/14 00:51:45 tgl Exp $ * $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.54 2008/08/25 11:18:43 mha Exp $
*/ */
CREATE VIEW pg_roles AS CREATE VIEW pg_roles AS
@ -143,37 +143,27 @@ REVOKE ALL on pg_statistic FROM public;
CREATE VIEW pg_locks AS CREATE VIEW pg_locks AS
SELECT * SELECT *
FROM pg_lock_status() AS L FROM pg_lock_status() AS L;
(locktype text, database oid, relation oid, page int4, tuple int2,
virtualxid text, transactionid xid, classid oid, objid oid, objsubid int2,
virtualtransaction text, pid int4, mode text, granted boolean);
CREATE VIEW pg_cursors AS CREATE VIEW pg_cursors AS
SELECT C.name, C.statement, C.is_holdable, C.is_binary, SELECT C.name, C.statement, C.is_holdable, C.is_binary,
C.is_scrollable, C.creation_time C.is_scrollable, C.creation_time
FROM pg_cursor() AS C FROM pg_cursor() AS C;
(name text, statement text, is_holdable boolean, is_binary boolean,
is_scrollable boolean, creation_time timestamptz);
CREATE VIEW pg_prepared_xacts AS CREATE VIEW pg_prepared_xacts AS
SELECT P.transaction, P.gid, P.prepared, SELECT P.transaction, P.gid, P.prepared,
U.rolname AS owner, D.datname AS database U.rolname AS owner, D.datname AS database
FROM pg_prepared_xact() AS P FROM pg_prepared_xact() AS P
(transaction xid, gid text, prepared timestamptz, ownerid oid, dbid oid)
LEFT JOIN pg_authid U ON P.ownerid = U.oid LEFT JOIN pg_authid U ON P.ownerid = U.oid
LEFT JOIN pg_database D ON P.dbid = D.oid; LEFT JOIN pg_database D ON P.dbid = D.oid;
CREATE VIEW pg_prepared_statements AS CREATE VIEW pg_prepared_statements AS
SELECT P.name, P.statement, P.prepare_time, P.parameter_types, P.from_sql SELECT P.name, P.statement, P.prepare_time, P.parameter_types, P.from_sql
FROM pg_prepared_statement() AS P FROM pg_prepared_statement() AS P;
(name text, statement text, prepare_time timestamptz,
parameter_types regtype[], from_sql boolean);
CREATE VIEW pg_settings AS CREATE VIEW pg_settings AS
SELECT * SELECT *
FROM pg_show_all_settings() AS A FROM pg_show_all_settings() AS A;
(name text, setting text, unit text, category text, short_desc text, extra_desc text,
context text, vartype text, source text, min_val text, max_val text, enumvals text);
CREATE RULE pg_settings_u AS CREATE RULE pg_settings_u AS
ON UPDATE TO pg_settings ON UPDATE TO pg_settings

4
src/include/catalog/catversion.h
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@ -37,7 +37,7 @@
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.479 2008/08/23 20:31:37 momjian Exp $ * $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.480 2008/08/25 11:18:43 mha Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -53,6 +53,6 @@
*/ */
/* yyyymmddN */ /* yyyymmddN */
#define CATALOG_VERSION_NO 200808231 #define CATALOG_VERSION_NO 200808251
#endif #endif

12
src/include/catalog/pg_proc.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.511 2008/08/23 20:31:37 momjian Exp $ * $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.512 2008/08/25 11:18:43 mha Exp $
* *
* NOTES * NOTES
* The script catalog/genbki.sh reads this file and generates .bki * The script catalog/genbki.sh reads this file and generates .bki
@ -3157,11 +3157,11 @@ DATA(insert OID = 2077 ( current_setting PGNSP PGUID 12 1 0 0 f f t f s 1 25 "2
DESCR("SHOW X as a function"); DESCR("SHOW X as a function");
DATA(insert OID = 2078 ( set_config PGNSP PGUID 12 1 0 0 f f f f v 3 25 "25 25 16" _null_ _null_ _null_ set_config_by_name _null_ _null_ _null_ )); DATA(insert OID = 2078 ( set_config PGNSP PGUID 12 1 0 0 f f f f v 3 25 "25 25 16" _null_ _null_ _null_ set_config_by_name _null_ _null_ _null_ ));
DESCR("SET X as a function"); DESCR("SET X as a function");
DATA(insert OID = 2084 ( pg_show_all_settings PGNSP PGUID 12 1 1000 0 f f t t s 0 2249 "" _null_ _null_ _null_ show_all_settings _null_ _null_ _null_ )); DATA(insert OID = 2084 ( pg_show_all_settings PGNSP PGUID 12 1 1000 0 f f t t s 0 2249 "" "{25,25,25,25,25,25,25,25,25,25,25,25}" "{o,o,o,o,o,o,o,o,o,o,o,o}" "{name,setting,unit,category,short_desc,extra_desc,context,vartype,source,min_val,max_val,enumvals}" show_all_settings _null_ _null_ _null_ ));
DESCR("SHOW ALL as a function"); DESCR("SHOW ALL as a function");
DATA(insert OID = 1371 ( pg_lock_status PGNSP PGUID 12 1 1000 0 f f t t v 0 2249 "" _null_ _null_ _null_ pg_lock_status _null_ _null_ _null_ )); DATA(insert OID = 1371 ( pg_lock_status PGNSP PGUID 12 1 1000 0 f f t t v 0 2249 "" "{25,26,26,23,21,25,28,26,26,21,25,23,25,16}" "{o,o,o,o,o,o,o,o,o,o,o,o,o,o}" "{locktype,database,relation,page,tuple,virtualxid,transactionid,classid,objid,objsubid,virtualtransaction,pid,mode,granted}" pg_lock_status _null_ _null_ _null_ ));
DESCR("view system lock information"); DESCR("view system lock information");
DATA(insert OID = 1065 ( pg_prepared_xact PGNSP PGUID 12 1 1000 0 f f t t v 0 2249 "" _null_ _null_ _null_ pg_prepared_xact _null_ _null_ _null_ )); DATA(insert OID = 1065 ( pg_prepared_xact PGNSP PGUID 12 1 1000 0 f f t t v 0 2249 "" "{28,25,1184,26,26}" "{o,o,o,o,o}" "{transaction,gid,prepared,ownerid,dbid}" pg_prepared_xact _null_ _null_ _null_ ));
DESCR("view two-phase transactions"); DESCR("view two-phase transactions");
DATA(insert OID = 2079 ( pg_table_is_visible PGNSP PGUID 12 1 0 0 f f t f s 1 16 "26" _null_ _null_ _null_ pg_table_is_visible _null_ _null_ _null_ )); DATA(insert OID = 2079 ( pg_table_is_visible PGNSP PGUID 12 1 0 0 f f t f s 1 16 "26" _null_ _null_ _null_ pg_table_is_visible _null_ _null_ _null_ ));
@ -3975,9 +3975,9 @@ DATA(insert OID = 2508 ( pg_get_constraintdef PGNSP PGUID 12 1 0 0 f f t f s 2
DESCR("constraint description with pretty-print option"); DESCR("constraint description with pretty-print option");
DATA(insert OID = 2509 ( pg_get_expr PGNSP PGUID 12 1 0 0 f f t f s 3 25 "25 26 16" _null_ _null_ _null_ pg_get_expr_ext _null_ _null_ _null_ )); DATA(insert OID = 2509 ( pg_get_expr PGNSP PGUID 12 1 0 0 f f t f s 3 25 "25 26 16" _null_ _null_ _null_ pg_get_expr_ext _null_ _null_ _null_ ));
DESCR("deparse an encoded expression with pretty-print option"); DESCR("deparse an encoded expression with pretty-print option");
DATA(insert OID = 2510 ( pg_prepared_statement PGNSP PGUID 12 1 1000 0 f f t t s 0 2249 "" _null_ _null_ _null_ pg_prepared_statement _null_ _null_ _null_ )); DATA(insert OID = 2510 ( pg_prepared_statement PGNSP PGUID 12 1 1000 0 f f t t s 0 2249 "" "{25,25,1184,2211,16}" "{o,o,o,o,o}" "{name,statement,prepare_time,parameter_types,from_sql}" pg_prepared_statement _null_ _null_ _null_ ));
DESCR("get the prepared statements for this session"); DESCR("get the prepared statements for this session");
DATA(insert OID = 2511 ( pg_cursor PGNSP PGUID 12 1 1000 0 f f t t s 0 2249 "" _null_ _null_ _null_ pg_cursor _null_ _null_ _null_ )); DATA(insert OID = 2511 ( pg_cursor PGNSP PGUID 12 1 1000 0 f f t t s 0 2249 "" "{25,25,16,16,16,1184}" "{o,o,o,o,o,o}" "{name,statement,is_holdable,is_binary,is_scrollable,creation_time}" pg_cursor _null_ _null_ _null_ ));
DESCR("get the open cursors for this session"); DESCR("get the open cursors for this session");
DATA(insert OID = 2599 ( pg_timezone_abbrevs PGNSP PGUID 12 1 1000 0 f f t t s 0 2249 "" "{25,1186,16}" "{o,o,o}" "{abbrev,utc_offset,is_dst}" pg_timezone_abbrevs _null_ _null_ _null_ )); DATA(insert OID = 2599 ( pg_timezone_abbrevs PGNSP PGUID 12 1 1000 0 f f t t s 0 2249 "" "{25,1186,16}" "{o,o,o}" "{abbrev,utc_offset,is_dst}" pg_timezone_abbrevs _null_ _null_ _null_ ));
DESCR("get the available time zone abbreviations"); DESCR("get the available time zone abbreviations");

10
src/test/regress/expected/rules.out
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@ -1279,15 +1279,15 @@ SELECT viewname, definition FROM pg_views WHERE schemaname <> 'information_schem
viewname | definition viewname | definition
--------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- --------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
iexit | SELECT ih.name, ih.thepath, interpt_pp(ih.thepath, r.thepath) AS exit FROM ihighway ih, ramp r WHERE (ih.thepath ## r.thepath); iexit | SELECT ih.name, ih.thepath, interpt_pp(ih.thepath, r.thepath) AS exit FROM ihighway ih, ramp r WHERE (ih.thepath ## r.thepath);
pg_cursors | SELECT c.name, c.statement, c.is_holdable, c.is_binary, c.is_scrollable, c.creation_time FROM pg_cursor() c(name text, statement text, is_holdable boolean, is_binary boolean, is_scrollable boolean, creation_time timestamp with time zone); pg_cursors | SELECT c.name, c.statement, c.is_holdable, c.is_binary, c.is_scrollable, c.creation_time FROM pg_cursor() c(name, statement, is_holdable, is_binary, is_scrollable, creation_time);
pg_group | SELECT pg_authid.rolname AS groname, pg_authid.oid AS grosysid, ARRAY(SELECT pg_auth_members.member FROM pg_auth_members WHERE (pg_auth_members.roleid = pg_authid.oid)) AS grolist FROM pg_authid WHERE (NOT pg_authid.rolcanlogin); pg_group | SELECT pg_authid.rolname AS groname, pg_authid.oid AS grosysid, ARRAY(SELECT pg_auth_members.member FROM pg_auth_members WHERE (pg_auth_members.roleid = pg_authid.oid)) AS grolist FROM pg_authid WHERE (NOT pg_authid.rolcanlogin);
pg_indexes | SELECT n.nspname AS schemaname, c.relname AS tablename, i.relname AS indexname, t.spcname AS tablespace, pg_get_indexdef(i.oid) AS indexdef FROM ((((pg_index x JOIN pg_class c ON ((c.oid = x.indrelid))) JOIN pg_class i ON ((i.oid = x.indexrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) LEFT JOIN pg_tablespace t ON ((t.oid = i.reltablespace))) WHERE ((c.relkind = 'r'::"char") AND (i.relkind = 'i'::"char")); pg_indexes | SELECT n.nspname AS schemaname, c.relname AS tablename, i.relname AS indexname, t.spcname AS tablespace, pg_get_indexdef(i.oid) AS indexdef FROM ((((pg_index x JOIN pg_class c ON ((c.oid = x.indrelid))) JOIN pg_class i ON ((i.oid = x.indexrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) LEFT JOIN pg_tablespace t ON ((t.oid = i.reltablespace))) WHERE ((c.relkind = 'r'::"char") AND (i.relkind = 'i'::"char"));
pg_locks | SELECT l.locktype, l.database, l.relation, l.page, l.tuple, l.virtualxid, l.transactionid, l.classid, l.objid, l.objsubid, l.virtualtransaction, l.pid, l.mode, l.granted FROM pg_lock_status() l(locktype text, database oid, relation oid, page integer, tuple smallint, virtualxid text, transactionid xid, classid oid, objid oid, objsubid smallint, virtualtransaction text, pid integer, mode text, granted boolean); pg_locks | SELECT l.locktype, l.database, l.relation, l.page, l.tuple, l.virtualxid, l.transactionid, l.classid, l.objid, l.objsubid, l.virtualtransaction, l.pid, l.mode, l.granted FROM pg_lock_status() l(locktype, database, relation, page, tuple, virtualxid, transactionid, classid, objid, objsubid, virtualtransaction, pid, mode, granted);
pg_prepared_statements | SELECT p.name, p.statement, p.prepare_time, p.parameter_types, p.from_sql FROM pg_prepared_statement() p(name text, statement text, prepare_time timestamp with time zone, parameter_types regtype[], from_sql boolean); pg_prepared_statements | SELECT p.name, p.statement, p.prepare_time, p.parameter_types, p.from_sql FROM pg_prepared_statement() p(name, statement, prepare_time, parameter_types, from_sql);
pg_prepared_xacts | SELECT p.transaction, p.gid, p.prepared, u.rolname AS owner, d.datname AS database FROM ((pg_prepared_xact() p(transaction xid, gid text, prepared timestamp with time zone, ownerid oid, dbid oid) LEFT JOIN pg_authid u ON ((p.ownerid = u.oid))) LEFT JOIN pg_database d ON ((p.dbid = d.oid))); pg_prepared_xacts | SELECT p.transaction, p.gid, p.prepared, u.rolname AS owner, d.datname AS database FROM ((pg_prepared_xact() p(transaction, gid, prepared, ownerid, dbid) LEFT JOIN pg_authid u ON ((p.ownerid = u.oid))) LEFT JOIN pg_database d ON ((p.dbid = d.oid)));
pg_roles | SELECT pg_authid.rolname, pg_authid.rolsuper, pg_authid.rolinherit, pg_authid.rolcreaterole, pg_authid.rolcreatedb, pg_authid.rolcatupdate, pg_authid.rolcanlogin, pg_authid.rolconnlimit, '********'::text AS rolpassword, pg_authid.rolvaliduntil, pg_authid.rolconfig, pg_authid.oid FROM pg_authid; pg_roles | SELECT pg_authid.rolname, pg_authid.rolsuper, pg_authid.rolinherit, pg_authid.rolcreaterole, pg_authid.rolcreatedb, pg_authid.rolcatupdate, pg_authid.rolcanlogin, pg_authid.rolconnlimit, '********'::text AS rolpassword, pg_authid.rolvaliduntil, pg_authid.rolconfig, pg_authid.oid FROM pg_authid;
pg_rules | SELECT n.nspname AS schemaname, c.relname AS tablename, r.rulename, pg_get_ruledef(r.oid) AS definition FROM ((pg_rewrite r JOIN pg_class c ON ((c.oid = r.ev_class))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (r.rulename <> '_RETURN'::name); pg_rules | SELECT n.nspname AS schemaname, c.relname AS tablename, r.rulename, pg_get_ruledef(r.oid) AS definition FROM ((pg_rewrite r JOIN pg_class c ON ((c.oid = r.ev_class))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (r.rulename <> '_RETURN'::name);
pg_settings | SELECT a.name, a.setting, a.unit, a.category, a.short_desc, a.extra_desc, a.context, a.vartype, a.source, a.min_val, a.max_val, a.enumvals FROM pg_show_all_settings() a(name text, setting text, unit text, category text, short_desc text, extra_desc text, context text, vartype text, source text, min_val text, max_val text, enumvals text); pg_settings | SELECT a.name, a.setting, a.unit, a.category, a.short_desc, a.extra_desc, a.context, a.vartype, a.source, a.min_val, a.max_val, a.enumvals FROM pg_show_all_settings() a(name, setting, unit, category, short_desc, extra_desc, context, vartype, source, min_val, max_val, enumvals);
pg_shadow | SELECT pg_authid.rolname AS usename, pg_authid.oid AS usesysid, pg_authid.rolcreatedb AS usecreatedb, pg_authid.rolsuper AS usesuper, pg_authid.rolcatupdate AS usecatupd, pg_authid.rolpassword AS passwd, (pg_authid.rolvaliduntil)::abstime AS valuntil, pg_authid.rolconfig AS useconfig FROM pg_authid WHERE pg_authid.rolcanlogin; pg_shadow | SELECT pg_authid.rolname AS usename, pg_authid.oid AS usesysid, pg_authid.rolcreatedb AS usecreatedb, pg_authid.rolsuper AS usesuper, pg_authid.rolcatupdate AS usecatupd, pg_authid.rolpassword AS passwd, (pg_authid.rolvaliduntil)::abstime AS valuntil, pg_authid.rolconfig AS useconfig FROM pg_authid WHERE pg_authid.rolcanlogin;
pg_stat_activity | SELECT s.datid, d.datname, s.procpid, s.usesysid, u.rolname AS usename, s.current_query, s.waiting, s.xact_start, s.query_start, s.backend_start, s.client_addr, s.client_port FROM pg_database d, pg_stat_get_activity(NULL::integer) s(datid, procpid, usesysid, current_query, waiting, xact_start, query_start, backend_start, client_addr, client_port), pg_authid u WHERE ((s.datid = d.oid) AND (s.usesysid = u.oid)); pg_stat_activity | SELECT s.datid, d.datname, s.procpid, s.usesysid, u.rolname AS usename, s.current_query, s.waiting, s.xact_start, s.query_start, s.backend_start, s.client_addr, s.client_port FROM pg_database d, pg_stat_get_activity(NULL::integer) s(datid, procpid, usesysid, current_query, waiting, xact_start, query_start, backend_start, client_addr, client_port), pg_authid u WHERE ((s.datid = d.oid) AND (s.usesysid = u.oid));
pg_stat_all_indexes | SELECT c.oid AS relid, i.oid AS indexrelid, n.nspname AS schemaname, c.relname, i.relname AS indexrelname, pg_stat_get_numscans(i.oid) AS idx_scan, pg_stat_get_tuples_returned(i.oid) AS idx_tup_read, pg_stat_get_tuples_fetched(i.oid) AS idx_tup_fetch FROM (((pg_class c JOIN pg_index x ON ((c.oid = x.indrelid))) JOIN pg_class i ON ((i.oid = x.indexrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = ANY (ARRAY['r'::"char", 't'::"char"])); pg_stat_all_indexes | SELECT c.oid AS relid, i.oid AS indexrelid, n.nspname AS schemaname, c.relname, i.relname AS indexrelname, pg_stat_get_numscans(i.oid) AS idx_scan, pg_stat_get_tuples_returned(i.oid) AS idx_tup_read, pg_stat_get_tuples_fetched(i.oid) AS idx_tup_fetch FROM (((pg_class c JOIN pg_index x ON ((c.oid = x.indrelid))) JOIN pg_class i ON ((i.oid = x.indexrelid))) LEFT JOIN pg_namespace n ON ((n.oid = c.relnamespace))) WHERE (c.relkind = ANY (ARRAY['r'::"char", 't'::"char"]));