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Add pg_identify_object_as_address

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This function returns object type and objname/objargs arrays, which can
be passed to pg_get_object_address.  This is especially useful because
the textual representation can be copied to a remote server in order to
obtain the corresponding OID-based address.  In essence, this function
is the inverse of recently added pg_get_object_address().

Catalog version bumped due to the addition of the new function.

Also add docs to pg_get_object_address.
This commit is contained in:
Alvaro Herrera
2014-12-30 15:41:50 -03:00
parent 5b447ad3a9
commit a676201490
9 changed files with 485 additions and 107 deletions
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85
src/test/regress/expected/object_address.out
View File

@ -339,46 +339,51 @@ WITH objects (type, name, args) AS (VALUES
-- event trigger
('policy', '{addr_nsp, gentable, genpol}', '{}')
)
SELECT (pg_identify_object(classid, objid, subobjid)).*
FROM objects, pg_get_object_address(type, name, args)
ORDER BY classid, objid;
type | schema | name | identity
---------------------------+------------+-------------------+----------------------------------------------------------------------
type | pg_catalog | _int4 | integer[]
type | addr_nsp | gencomptype | addr_nsp.gencomptype
type | addr_nsp | genenum | addr_nsp.genenum
type | addr_nsp | gendomain | addr_nsp.gendomain
function | pg_catalog | | pg_catalog.pg_identify_object(pg_catalog.oid,pg_catalog.oid,integer)
aggregate | addr_nsp | | addr_nsp.genaggr(integer)
sequence | addr_nsp | gentable_a_seq | addr_nsp.gentable_a_seq
table | addr_nsp | gentable | addr_nsp.gentable
table column | addr_nsp | gentable | addr_nsp.gentable.b
index | addr_nsp | gentable_pkey | addr_nsp.gentable_pkey
view | addr_nsp | genview | addr_nsp.genview
materialized view | addr_nsp | genmatview | addr_nsp.genmatview
foreign table column | addr_nsp | genftable | addr_nsp.genftable.a
foreign table | addr_nsp | genftable | addr_nsp.genftable
role | | regtest_addr_user | regtest_addr_user
server | | addr_fserv | addr_fserv
foreign-data wrapper | | addr_fdw | addr_fdw
default value | | | for addr_nsp.gentable.b
cast | | | (bigint AS integer)
table constraint | addr_nsp | | a_chk on addr_nsp.gentable
domain constraint | addr_nsp | | domconstr on addr_nsp.gendomain
conversion | pg_catalog | ascii_to_mic | ascii_to_mic
language | | plpgsql | plpgsql
schema | | addr_nsp | addr_nsp
operator class | pg_catalog | int4_ops | pg_catalog.int4_ops for btree
operator | pg_catalog | | pg_catalog.+(integer,integer)
rule | | | "_RETURN" on addr_nsp.genview
trigger | | | t on addr_nsp.gentable
operator family | pg_catalog | integer_ops | pg_catalog.integer_ops for btree
policy | | | genpol on addr_nsp.gentable
collation | pg_catalog | "default" | pg_catalog."default"
text search dictionary | addr_nsp | addr_ts_dict | addr_nsp.addr_ts_dict
text search parser | addr_nsp | addr_ts_prs | addr_nsp.addr_ts_prs
text search configuration | addr_nsp | addr_ts_conf | addr_nsp.addr_ts_conf
text search template | addr_nsp | addr_ts_temp | addr_nsp.addr_ts_temp
SELECT (pg_identify_object(addr1.classid, addr1.objid, addr1.subobjid)).*,
-- test roundtrip through pg_identify_object_as_address
ROW(pg_identify_object(addr1.classid, addr1.objid, addr1.subobjid)) =
ROW(pg_identify_object(addr2.classid, addr2.objid, addr2.subobjid))
FROM objects, pg_get_object_address(type, name, args) addr1,
pg_identify_object_as_address(classid, objid, subobjid) ioa(typ,nms,args),
pg_get_object_address(typ, nms, ioa.args) as addr2
ORDER BY addr1.classid, addr1.objid;
type | schema | name | identity | ?column?
---------------------------+------------+-------------------+----------------------------------------------------------------------+----------
type | pg_catalog | _int4 | integer[] | t
type | addr_nsp | gencomptype | addr_nsp.gencomptype | t
type | addr_nsp | genenum | addr_nsp.genenum | t
type | addr_nsp | gendomain | addr_nsp.gendomain | t
function | pg_catalog | | pg_catalog.pg_identify_object(pg_catalog.oid,pg_catalog.oid,integer) | t
aggregate | addr_nsp | | addr_nsp.genaggr(integer) | t
sequence | addr_nsp | gentable_a_seq | addr_nsp.gentable_a_seq | t
table | addr_nsp | gentable | addr_nsp.gentable | t
table column | addr_nsp | gentable | addr_nsp.gentable.b | t
index | addr_nsp | gentable_pkey | addr_nsp.gentable_pkey | t
view | addr_nsp | genview | addr_nsp.genview | t
materialized view | addr_nsp | genmatview | addr_nsp.genmatview | t
foreign table column | addr_nsp | genftable | addr_nsp.genftable.a | t
foreign table | addr_nsp | genftable | addr_nsp.genftable | t
role | | regtest_addr_user | regtest_addr_user | t
server | | addr_fserv | addr_fserv | t
foreign-data wrapper | | addr_fdw | addr_fdw | t
default value | | | for addr_nsp.gentable.b | t
cast | | | (bigint AS integer) | t
table constraint | addr_nsp | | a_chk on addr_nsp.gentable | t
domain constraint | addr_nsp | | domconstr on addr_nsp.gendomain | t
conversion | pg_catalog | ascii_to_mic | ascii_to_mic | t
language | | plpgsql | plpgsql | t
schema | | addr_nsp | addr_nsp | t
operator class | pg_catalog | int4_ops | pg_catalog.int4_ops for btree | t
operator | pg_catalog | | pg_catalog.+(integer,integer) | t
rule | | | "_RETURN" on addr_nsp.genview | t
trigger | | | t on addr_nsp.gentable | t
operator family | pg_catalog | integer_ops | pg_catalog.integer_ops for btree | t
policy | | | genpol on addr_nsp.gentable | t
collation | pg_catalog | "default" | pg_catalog."default" | t
text search dictionary | addr_nsp | addr_ts_dict | addr_nsp.addr_ts_dict | t
text search parser | addr_nsp | addr_ts_prs | addr_nsp.addr_ts_prs | t
text search configuration | addr_nsp | addr_ts_conf | addr_nsp.addr_ts_conf | t
text search template | addr_nsp | addr_ts_temp | addr_nsp.addr_ts_temp | t
(35 rows)
---

11
src/test/regress/sql/object_address.sql
View File

@ -159,9 +159,14 @@ WITH objects (type, name, args) AS (VALUES
-- event trigger
('policy', '{addr_nsp, gentable, genpol}', '{}')
)
SELECT (pg_identify_object(classid, objid, subobjid)).*
FROM objects, pg_get_object_address(type, name, args)
ORDER BY classid, objid;
SELECT (pg_identify_object(addr1.classid, addr1.objid, addr1.subobjid)).*,
-- test roundtrip through pg_identify_object_as_address
ROW(pg_identify_object(addr1.classid, addr1.objid, addr1.subobjid)) =
ROW(pg_identify_object(addr2.classid, addr2.objid, addr2.subobjid))
FROM objects, pg_get_object_address(type, name, args) addr1,
pg_identify_object_as_address(classid, objid, subobjid) ioa(typ,nms,args),
pg_get_object_address(typ, nms, ioa.args) as addr2
ORDER BY addr1.classid, addr1.objid;
---
--- Cleanup resources