Thread: BUG #4274: uuid returns duplicate values
The following bug has been logged online:
Bug reference: 4274
Logged by: eric melbardis
Email address: eric.melbardis@netkitsolutions.com
PostgreSQL version: 8.3.3
Operating system: windows xp sp3
Description: uuid returns duplicate values
Details:
the uuid functions do not return unique values if used sequntially, or i
believe without too much tme in between invocations.
the following test functions returns the same value!
------------ test function ---------------
create or replace function test_uuid()
returns varchar as
$body$
begin
raise notice 'uuid = %', uuid_generate_v4();
raise notice 'uuid = %', uuid_generate_v4();
raise notice 'uuid = %', uuid_generate_v4();
raise notice 'uuid = %', uuid_generate_v4();
end;
$body$
language 'plpgsql' ;
Hi. I'm sorry delaying release bugfix was not included in pg8.3.3. Please try this. http://winpg.jp/~saito/pg_work/OSSP_win32/ Regards, Hiroshi Saito > >The following bug has been logged online: > >Bug reference: 4274 >Logged by: eric melbardis >Email address: eric.melbardis@netkitsolutions.com >PostgreSQL version: 8.3.3 >Operating system: windows xp sp3 >Description: uuid returns duplicate values >Details: > >the uuid functions do not return unique values if used sequntially, or i >believe without too much tme in between invocations. > >the following test functions returns the same value! > >------------ test function --------------- >create or replace function test_uuid() >returns varchar as >$body$ >begin > raise notice 'uuid = %', uuid_generate_v4(); > raise notice 'uuid = %', uuid_generate_v4(); > raise notice 'uuid = %', uuid_generate_v4(); > raise notice 'uuid = %', uuid_generate_v4(); >end; >$body$ >language 'plpgsql' ; > >-- >Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) >To make changes to your subscription: >http://www.postgresql.org/mailpref/pgsql-bugs
Hi I just tried it, slightly better but not a runner.... Here is a sample of the results I get when running my test script, note result vary but lack of duplicates does not. Why do you not use the CreateUUID function in windows?? Regards Eric ------------------------ result ------------------------------------ psql:q.sql:152: NOTICE: uuid =3D dfde33d4-188a-4124-847d-0871a90be1fa psql:q.sql:152: NOTICE: uuid =3D dfde33d4-188a-4124-847d-0871a90be1fa psql:q.sql:152: NOTICE: uuid =3D e6e5dd64-5a1b-4f2e-8443-829d3b325247 psql:q.sql:152: NOTICE: uuid =3D 2bb08ab3-eb57-42a3-a9ac-63e466384d71 -----Original Message----- From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp]=20 Sent: Sunday, June 29, 2008 3:22 PM To: Eric P. Melbardis Cc: pgsql-bugs@postgresql.org Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values Hi. I'm sorry delaying release bugfix was not included in pg8.3.3.=20 Please try this.=20 http://winpg.jp/~saito/pg_work/OSSP_win32/ Regards, Hiroshi Saito > >The following bug has been logged online: > >Bug reference: 4274 >Logged by: eric melbardis >Email address: eric.melbardis@netkitsolutions.com >PostgreSQL version: 8.3.3 >Operating system: windows xp sp3 >Description: uuid returns duplicate values >Details:=20 > >the uuid functions do not return unique values if used sequntially, or i >believe without too much tme in between invocations. > >the following test functions returns the same value! > >------------ test function --------------- >create or replace function test_uuid() >returns varchar as=20 >$body$ >begin > raise notice 'uuid =3D %', uuid_generate_v4(); > raise notice 'uuid =3D %', uuid_generate_v4(); > raise notice 'uuid =3D %', uuid_generate_v4(); > raise notice 'uuid =3D %', uuid_generate_v4(); >end; >$body$ >language 'plpgsql' ; > >--=20 >Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) >To make changes to your subscription: >http://www.postgresql.org/mailpref/pgsql-bugs
Hi. Umm... The test of my box is comfortable. -- -- ossp-uuid test -- CREATE OR REPLACE FUNCTION test_uuid(gen INTEGER) RETURNS VOID AS $$ BEGIN FOR i IN 1..$1 LOOP RAISE INFO 'uuid = %', uuid_generate_v4(); END LOOP; END; $$ LANGUAGE 'plpgsql'; postgres=# CREATE OR REPLACE FUNCTION test_uuid(gen INTEGER) postgres-# RETURNS VOID AS $$ postgres$# BEGIN postgres$# FOR i IN 1..$1 LOOP postgres$# RAISE INFO 'uuid = %', uuid_generate_v4(); postgres$# END LOOP; postgres$# END; postgres$# $$ postgres-# LANGUAGE 'plpgsql'; CREATE FUNCTION postgres=# SELECT test_uuid(10); INFO: uuid = 427c6f3e-9876-48c5-b44d-776771f7c2c9 INFO: uuid = fbab93a8-44d2-4f52-b6ae-01396c6ee17e INFO: uuid = d82be630-d2e8-4662-b6ea-db8c56121024 INFO: uuid = 33689404-2da8-4a8d-9b94-6aeb284be347 INFO: uuid = cd7d10b7-23fa-40df-af74-53314dae235c INFO: uuid = 80934b57-4cf4-4ab5-b915-f41f22054265 INFO: uuid = abd6f205-1a49-4f4f-b854-c7d611533401 INFO: uuid = 2dd64cbc-ee86-419e-ba09-ae538f60cc5a INFO: uuid = 751ee0fe-d5ae-473f-b22f-e14c9066fadd INFO: uuid = 0d36e47d-c065-4717-96f0-82f53f610a9a test_uuid ----------- (1 row) Regards, Hiroshi Saito ----- Original Message ----- From: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com> Hi I just tried it, slightly better but not a runner.... Here is a sample of the results I get when running my test script, note result vary but lack of duplicates does not. Why do you not use the CreateUUID function in windows?? Regards Eric ------------------------ result ------------------------------------ psql:q.sql:152: NOTICE: uuid = dfde33d4-188a-4124-847d-0871a90be1fa psql:q.sql:152: NOTICE: uuid = dfde33d4-188a-4124-847d-0871a90be1fa psql:q.sql:152: NOTICE: uuid = e6e5dd64-5a1b-4f2e-8443-829d3b325247 psql:q.sql:152: NOTICE: uuid = 2bb08ab3-eb57-42a3-a9ac-63e466384d71 -----Original Message----- From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp] Sent: Sunday, June 29, 2008 3:22 PM To: Eric P. Melbardis Cc: pgsql-bugs@postgresql.org Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values Hi. I'm sorry delaying release bugfix was not included in pg8.3.3. Please try this. http://winpg.jp/~saito/pg_work/OSSP_win32/ Regards, Hiroshi Saito > >The following bug has been logged online: > >Bug reference: 4274 >Logged by: eric melbardis >Email address: eric.melbardis@netkitsolutions.com >PostgreSQL version: 8.3.3 >Operating system: windows xp sp3 >Description: uuid returns duplicate values >Details: > >the uuid functions do not return unique values if used sequntially, or i >believe without too much tme in between invocations. > >the following test functions returns the same value! > >------------ test function --------------- >create or replace function test_uuid() >returns varchar as >$body$ >begin > raise notice 'uuid = %', uuid_generate_v4(); > raise notice 'uuid = %', uuid_generate_v4(); > raise notice 'uuid = %', uuid_generate_v4(); > raise notice 'uuid = %', uuid_generate_v4(); >end; >$body$ >language 'plpgsql' ; > >-- >Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) >To make changes to your subscription: >http://www.postgresql.org/mailpref/pgsql-bugs
Hi I would suspect that the clock used may not be precise enough Not with standing, why not use the windows CreateUUID?? Slower system seems to fare better... (please see results below) Regards Eric ------------------- My office system is xeon (duo core 5160) 3.00 ghz, 2 gig-ram psql:q.sql:168: INFO: uuid =3D b2631eb7-26ad-4b40-9276-ed1fc43f0944 psql:q.sql:168: INFO: uuid =3D 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid =3D 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid =3D 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid =3D 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid =3D 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid =3D 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid =3D 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid =3D efd009ab-c38b-4efa-8b0c-4ef0280dc781 psql:q.sql:168: INFO: uuid =3D 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid =3D 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid =3D 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid =3D 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid =3D 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid =3D 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid =3D 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid =3D 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid =3D 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid =3D abc4884d-273e-49ce-82aa-46226af549c3 psql:q.sql:168: INFO: uuid =3D 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid =3D 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid =3D 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid =3D 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid =3D 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid =3D 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid =3D 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid =3D 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid =3D 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid =3D 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid =3D 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid =3D 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid =3D 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid =3D 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid =3D 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid =3D 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid =3D 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid =3D 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid =3D 754268bc-411d-48dd-b68d-5b449c18ecab psql:q.sql:168: INFO: uuid =3D a0ae6b93-adec-4523-b422-8eba041d76de ----- ------------------- My home system is Pentium D 3.2 hz 2g ram (NON-xeon!) psql:q.sql:168: INFO: uuid =3D 5dce8d5f-0f36-40fc-a34c-af74991e7fb3 psql:q.sql:168: INFO: uuid =3D ae9b28c3-1614-4092-93dd-ba1d8392622c psql:q.sql:168: INFO: uuid =3D ae9b28c3-1614-4092-93dd-ba1d8392622c psql:q.sql:168: INFO: uuid =3D 14146307-231e-4feb-aa97-a709f6515d05 psql:q.sql:168: INFO: uuid =3D 6a70d36c-de75-44ca-947b-3785eac42d49 psql:q.sql:168: INFO: uuid =3D 6a70d36c-de75-44ca-947b-3785eac42d49 psql:q.sql:168: INFO: uuid =3D 849650aa-1004-4c28-b7b5-dce9bcff22e4 psql:q.sql:168: INFO: uuid =3D f950d8d9-c257-41cc-8206-7267698755f1 psql:q.sql:168: INFO: uuid =3D f950d8d9-c257-41cc-8206-7267698755f1 psql:q.sql:168: INFO: uuid =3D f950d8d9-c257-41cc-8206-7267698755f1 psql:q.sql:168: INFO: uuid =3D df203405-a3d9-40b8-8195-46cdc7a9aa09 psql:q.sql:168: INFO: uuid =3D c7ac43bc-2355-4c4d-9b61-defefead41e1 psql:q.sql:168: INFO: uuid =3D c7ac43bc-2355-4c4d-9b61-defefead41e1 psql:q.sql:168: INFO: uuid =3D e6a40257-5095-441a-8216-4802b8ccceca psql:q.sql:168: INFO: uuid =3D d10df458-a372-4ff8-85f5-c6fb8bcdf798 psql:q.sql:168: INFO: uuid =3D d10df458-a372-4ff8-85f5-c6fb8bcdf798 psql:q.sql:168: INFO: uuid =3D d10df458-a372-4ff8-85f5-c6fb8bcdf798 psql:q.sql:168: INFO: uuid =3D 3ff3189b-cbe9-4e7f-b76e-0953337242b1 psql:q.sql:168: INFO: uuid =3D 210a9418-1e19-4bec-b7ca-a0333d7dbb02 psql:q.sql:168: INFO: uuid =3D 210a9418-1e19-4bec-b7ca-a0333d7dbb02 psql:q.sql:168: INFO: uuid =3D 68bfec27-6f9d-49c7-93fc-4218a1d32e18 psql:q.sql:168: INFO: uuid =3D ef86cb1b-2721-4a74-ba21-64fe5148c9d7 psql:q.sql:168: INFO: uuid =3D ef86cb1b-2721-4a74-ba21-64fe5148c9d7 psql:q.sql:168: INFO: uuid =3D ef86cb1b-2721-4a74-ba21-64fe5148c9d7 psql:q.sql:168: INFO: uuid =3D 45141a17-9972-4013-92f2-ced9215f45b5 psql:q.sql:168: INFO: uuid =3D 7c6cbb39-af9f-4de6-b6f8-0ae57bf0ea4f psql:q.sql:168: INFO: uuid =3D 7c6cbb39-af9f-4de6-b6f8-0ae57bf0ea4f psql:q.sql:168: INFO: uuid =3D 59d4c7ff-598d-49ae-9a95-a4051c2b5787 -----Original Message----- From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp]=20 Sent: Tuesday, July 01, 2008 4:56 PM To: Eric P. Melbardis Cc: pgsql-bugs@postgresql.org Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values Hi. Umm... The test of my box is comfortable.=20 -- -- ossp-uuid test -- CREATE OR REPLACE FUNCTION test_uuid(gen INTEGER) RETURNS VOID AS $$ BEGIN FOR i IN 1..$1 LOOP RAISE INFO 'uuid =3D %', uuid_generate_v4(); END LOOP; END; $$ LANGUAGE 'plpgsql'; postgres=3D# CREATE OR REPLACE FUNCTION test_uuid(gen INTEGER) postgres-# RETURNS VOID AS $$ postgres$# BEGIN postgres$# FOR i IN 1..$1 LOOP postgres$# RAISE INFO 'uuid =3D %', uuid_generate_v4(); postgres$# END LOOP; postgres$# END; postgres$# $$ postgres-# LANGUAGE 'plpgsql'; CREATE FUNCTION postgres=3D# SELECT test_uuid(10); INFO: uuid =3D 427c6f3e-9876-48c5-b44d-776771f7c2c9 INFO: uuid =3D fbab93a8-44d2-4f52-b6ae-01396c6ee17e INFO: uuid =3D d82be630-d2e8-4662-b6ea-db8c56121024 INFO: uuid =3D 33689404-2da8-4a8d-9b94-6aeb284be347 INFO: uuid =3D cd7d10b7-23fa-40df-af74-53314dae235c INFO: uuid =3D 80934b57-4cf4-4ab5-b915-f41f22054265 INFO: uuid =3D abd6f205-1a49-4f4f-b854-c7d611533401 INFO: uuid =3D 2dd64cbc-ee86-419e-ba09-ae538f60cc5a INFO: uuid =3D 751ee0fe-d5ae-473f-b22f-e14c9066fadd INFO: uuid =3D 0d36e47d-c065-4717-96f0-82f53f610a9a test_uuid ----------- (1 row) Regards, Hiroshi Saito ----- Original Message -----=20 From: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com> Hi I just tried it, slightly better but not a runner.... Here is a sample of the results I get when running my test script, note result vary but lack of duplicates does not. Why do you not use the CreateUUID function in windows?? Regards Eric ------------------------ result ------------------------------------ psql:q.sql:152: NOTICE: uuid =3D dfde33d4-188a-4124-847d-0871a90be1fa psql:q.sql:152: NOTICE: uuid =3D dfde33d4-188a-4124-847d-0871a90be1fa psql:q.sql:152: NOTICE: uuid =3D e6e5dd64-5a1b-4f2e-8443-829d3b325247 psql:q.sql:152: NOTICE: uuid =3D 2bb08ab3-eb57-42a3-a9ac-63e466384d71 -----Original Message----- From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp]=20 Sent: Sunday, June 29, 2008 3:22 PM To: Eric P. Melbardis Cc: pgsql-bugs@postgresql.org Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values Hi. I'm sorry delaying release bugfix was not included in pg8.3.3.=20 Please try this.=20 http://winpg.jp/~saito/pg_work/OSSP_win32/ Regards, Hiroshi Saito > >The following bug has been logged online: > >Bug reference: 4274 >Logged by: eric melbardis >Email address: eric.melbardis@netkitsolutions.com >PostgreSQL version: 8.3.3 >Operating system: windows xp sp3 >Description: uuid returns duplicate values >Details:=20 > >the uuid functions do not return unique values if used sequntially, or i >believe without too much tme in between invocations. > >the following test functions returns the same value! > >------------ test function --------------- >create or replace function test_uuid() >returns varchar as=20 >$body$ >begin > raise notice 'uuid =3D %', uuid_generate_v4(); > raise notice 'uuid =3D %', uuid_generate_v4(); > raise notice 'uuid =3D %', uuid_generate_v4(); > raise notice 'uuid =3D %', uuid_generate_v4(); >end; >$body$ >language 'plpgsql' ; > >--=20 >Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) >To make changes to your subscription: >http://www.postgresql.org/mailpref/pgsql-bugs
Hi. Sorry, late reaction....Now, private time has only a few. Umm, It seems that the bug is probably contained in another part. I will investigate at a weekend again. Anyway, thank you for useful information.! Regards, Hiroshi Saito ----- Original Message ----- From: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com> Hi I would suspect that the clock used may not be precise enough Not with standing, why not use the windows CreateUUID?? Slower system seems to fare better... (please see results below) Regards Eric ------------------- My office system is xeon (duo core 5160) 3.00 ghz, 2 gig-ram psql:q.sql:168: INFO: uuid = b2631eb7-26ad-4b40-9276-ed1fc43f0944 psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 psql:q.sql:168: INFO: uuid = efd009ab-c38b-4efa-8b0c-4ef0280dc781 psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 psql:q.sql:168: INFO: uuid = abc4884d-273e-49ce-82aa-46226af549c3 psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a psql:q.sql:168: INFO: uuid = 754268bc-411d-48dd-b68d-5b449c18ecab psql:q.sql:168: INFO: uuid = a0ae6b93-adec-4523-b422-8eba041d76de ----- ------------------- My home system is Pentium D 3.2 hz 2g ram (NON-xeon!) psql:q.sql:168: INFO: uuid = 5dce8d5f-0f36-40fc-a34c-af74991e7fb3 psql:q.sql:168: INFO: uuid = ae9b28c3-1614-4092-93dd-ba1d8392622c psql:q.sql:168: INFO: uuid = ae9b28c3-1614-4092-93dd-ba1d8392622c psql:q.sql:168: INFO: uuid = 14146307-231e-4feb-aa97-a709f6515d05 psql:q.sql:168: INFO: uuid = 6a70d36c-de75-44ca-947b-3785eac42d49 psql:q.sql:168: INFO: uuid = 6a70d36c-de75-44ca-947b-3785eac42d49 psql:q.sql:168: INFO: uuid = 849650aa-1004-4c28-b7b5-dce9bcff22e4 psql:q.sql:168: INFO: uuid = f950d8d9-c257-41cc-8206-7267698755f1 psql:q.sql:168: INFO: uuid = f950d8d9-c257-41cc-8206-7267698755f1 psql:q.sql:168: INFO: uuid = f950d8d9-c257-41cc-8206-7267698755f1 psql:q.sql:168: INFO: uuid = df203405-a3d9-40b8-8195-46cdc7a9aa09 psql:q.sql:168: INFO: uuid = c7ac43bc-2355-4c4d-9b61-defefead41e1 psql:q.sql:168: INFO: uuid = c7ac43bc-2355-4c4d-9b61-defefead41e1 psql:q.sql:168: INFO: uuid = e6a40257-5095-441a-8216-4802b8ccceca psql:q.sql:168: INFO: uuid = d10df458-a372-4ff8-85f5-c6fb8bcdf798 psql:q.sql:168: INFO: uuid = d10df458-a372-4ff8-85f5-c6fb8bcdf798 psql:q.sql:168: INFO: uuid = d10df458-a372-4ff8-85f5-c6fb8bcdf798 psql:q.sql:168: INFO: uuid = 3ff3189b-cbe9-4e7f-b76e-0953337242b1 psql:q.sql:168: INFO: uuid = 210a9418-1e19-4bec-b7ca-a0333d7dbb02 psql:q.sql:168: INFO: uuid = 210a9418-1e19-4bec-b7ca-a0333d7dbb02 psql:q.sql:168: INFO: uuid = 68bfec27-6f9d-49c7-93fc-4218a1d32e18 psql:q.sql:168: INFO: uuid = ef86cb1b-2721-4a74-ba21-64fe5148c9d7 psql:q.sql:168: INFO: uuid = ef86cb1b-2721-4a74-ba21-64fe5148c9d7 psql:q.sql:168: INFO: uuid = ef86cb1b-2721-4a74-ba21-64fe5148c9d7 psql:q.sql:168: INFO: uuid = 45141a17-9972-4013-92f2-ced9215f45b5 psql:q.sql:168: INFO: uuid = 7c6cbb39-af9f-4de6-b6f8-0ae57bf0ea4f psql:q.sql:168: INFO: uuid = 7c6cbb39-af9f-4de6-b6f8-0ae57bf0ea4f psql:q.sql:168: INFO: uuid = 59d4c7ff-598d-49ae-9a95-a4051c2b5787 -----Original Message----- From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp] Sent: Tuesday, July 01, 2008 4:56 PM To: Eric P. Melbardis Cc: pgsql-bugs@postgresql.org Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values Hi. Umm... The test of my box is comfortable. -- -- ossp-uuid test -- CREATE OR REPLACE FUNCTION test_uuid(gen INTEGER) RETURNS VOID AS $$ BEGIN FOR i IN 1..$1 LOOP RAISE INFO 'uuid = %', uuid_generate_v4(); END LOOP; END; $$ LANGUAGE 'plpgsql'; postgres=# CREATE OR REPLACE FUNCTION test_uuid(gen INTEGER) postgres-# RETURNS VOID AS $$ postgres$# BEGIN postgres$# FOR i IN 1..$1 LOOP postgres$# RAISE INFO 'uuid = %', uuid_generate_v4(); postgres$# END LOOP; postgres$# END; postgres$# $$ postgres-# LANGUAGE 'plpgsql'; CREATE FUNCTION postgres=# SELECT test_uuid(10); INFO: uuid = 427c6f3e-9876-48c5-b44d-776771f7c2c9 INFO: uuid = fbab93a8-44d2-4f52-b6ae-01396c6ee17e INFO: uuid = d82be630-d2e8-4662-b6ea-db8c56121024 INFO: uuid = 33689404-2da8-4a8d-9b94-6aeb284be347 INFO: uuid = cd7d10b7-23fa-40df-af74-53314dae235c INFO: uuid = 80934b57-4cf4-4ab5-b915-f41f22054265 INFO: uuid = abd6f205-1a49-4f4f-b854-c7d611533401 INFO: uuid = 2dd64cbc-ee86-419e-ba09-ae538f60cc5a INFO: uuid = 751ee0fe-d5ae-473f-b22f-e14c9066fadd INFO: uuid = 0d36e47d-c065-4717-96f0-82f53f610a9a test_uuid ----------- (1 row) Regards, Hiroshi Saito ----- Original Message ----- From: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com> Hi I just tried it, slightly better but not a runner.... Here is a sample of the results I get when running my test script, note result vary but lack of duplicates does not. Why do you not use the CreateUUID function in windows?? Regards Eric ------------------------ result ------------------------------------ psql:q.sql:152: NOTICE: uuid = dfde33d4-188a-4124-847d-0871a90be1fa psql:q.sql:152: NOTICE: uuid = dfde33d4-188a-4124-847d-0871a90be1fa psql:q.sql:152: NOTICE: uuid = e6e5dd64-5a1b-4f2e-8443-829d3b325247 psql:q.sql:152: NOTICE: uuid = 2bb08ab3-eb57-42a3-a9ac-63e466384d71 -----Original Message----- From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp] Sent: Sunday, June 29, 2008 3:22 PM To: Eric P. Melbardis Cc: pgsql-bugs@postgresql.org Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values Hi. I'm sorry delaying release bugfix was not included in pg8.3.3. Please try this. http://winpg.jp/~saito/pg_work/OSSP_win32/ Regards, Hiroshi Saito > >The following bug has been logged online: > >Bug reference: 4274 >Logged by: eric melbardis >Email address: eric.melbardis@netkitsolutions.com >PostgreSQL version: 8.3.3 >Operating system: windows xp sp3 >Description: uuid returns duplicate values >Details: > >the uuid functions do not return unique values if used sequntially, or i >believe without too much tme in between invocations. > >the following test functions returns the same value! > >------------ test function --------------- >create or replace function test_uuid() >returns varchar as >$body$ >begin > raise notice 'uuid = %', uuid_generate_v4(); > raise notice 'uuid = %', uuid_generate_v4(); > raise notice 'uuid = %', uuid_generate_v4(); > raise notice 'uuid = %', uuid_generate_v4(); >end; >$body$ >language 'plpgsql' ; > >-- >Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) >To make changes to your subscription: >http://www.postgresql.org/mailpref/pgsql-bugs -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
Hi. uuid of MS is the approach different from ossp. Then, I regret that it can't provide on other platforms....But, I tried it. http://winpg.jp/~saito/pg_work/OSSP_win32/try-uuidwin32/ If someone wishes, I think that this is the place where pgfoundry is suitable. Therefore, I will work an effort to clear the bug of uuid-ossp persistently. Please give me time to a slight degree. I appreciate your perseverance. thanks! Regards, Hiroshi Saito > ----- Original Message ----- > From: "Hiroshi Saito" <z-saito@guitar.ocn.ne.jp> > >> Hi. >> >> Sorry, late reaction....Now, private time has only a few. >> Umm, It seems that the bug is probably contained in another part. >> I will investigate at a weekend again. >> >> Anyway, thank you for useful information.! >> >> Regards, >> Hiroshi Saito >> >> ----- Original Message ----- >> From: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com> >> >> >> Hi >> >> >> I would suspect that the clock used may not be precise enough >> >> Not with standing, why not use the windows CreateUUID?? >> >> Slower system seems to fare better... (please see results below) >> >> Regards >> >> Eric >> >> >> ------------------- >> My office system is xeon (duo core 5160) 3.00 ghz, 2 gig-ram >> >> psql:q.sql:168: INFO: uuid = b2631eb7-26ad-4b40-9276-ed1fc43f0944 >> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >> psql:q.sql:168: INFO: uuid = efd009ab-c38b-4efa-8b0c-4ef0280dc781 >> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >> psql:q.sql:168: INFO: uuid = abc4884d-273e-49ce-82aa-46226af549c3 >> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >> psql:q.sql:168: INFO: uuid = 754268bc-411d-48dd-b68d-5b449c18ecab >> psql:q.sql:168: INFO: uuid = a0ae6b93-adec-4523-b422-8eba041d76de >> ----- >> >> ------------------- >> My home system is Pentium D 3.2 hz 2g ram (NON-xeon!) >> >> psql:q.sql:168: INFO: uuid = 5dce8d5f-0f36-40fc-a34c-af74991e7fb3 >> psql:q.sql:168: INFO: uuid = ae9b28c3-1614-4092-93dd-ba1d8392622c >> psql:q.sql:168: INFO: uuid = ae9b28c3-1614-4092-93dd-ba1d8392622c >> psql:q.sql:168: INFO: uuid = 14146307-231e-4feb-aa97-a709f6515d05 >> psql:q.sql:168: INFO: uuid = 6a70d36c-de75-44ca-947b-3785eac42d49 >> psql:q.sql:168: INFO: uuid = 6a70d36c-de75-44ca-947b-3785eac42d49 >> psql:q.sql:168: INFO: uuid = 849650aa-1004-4c28-b7b5-dce9bcff22e4 >> psql:q.sql:168: INFO: uuid = f950d8d9-c257-41cc-8206-7267698755f1 >> psql:q.sql:168: INFO: uuid = f950d8d9-c257-41cc-8206-7267698755f1 >> psql:q.sql:168: INFO: uuid = f950d8d9-c257-41cc-8206-7267698755f1 >> psql:q.sql:168: INFO: uuid = df203405-a3d9-40b8-8195-46cdc7a9aa09 >> psql:q.sql:168: INFO: uuid = c7ac43bc-2355-4c4d-9b61-defefead41e1 >> psql:q.sql:168: INFO: uuid = c7ac43bc-2355-4c4d-9b61-defefead41e1 >> psql:q.sql:168: INFO: uuid = e6a40257-5095-441a-8216-4802b8ccceca >> psql:q.sql:168: INFO: uuid = d10df458-a372-4ff8-85f5-c6fb8bcdf798 >> psql:q.sql:168: INFO: uuid = d10df458-a372-4ff8-85f5-c6fb8bcdf798 >> psql:q.sql:168: INFO: uuid = d10df458-a372-4ff8-85f5-c6fb8bcdf798 >> psql:q.sql:168: INFO: uuid = 3ff3189b-cbe9-4e7f-b76e-0953337242b1 >> psql:q.sql:168: INFO: uuid = 210a9418-1e19-4bec-b7ca-a0333d7dbb02 >> psql:q.sql:168: INFO: uuid = 210a9418-1e19-4bec-b7ca-a0333d7dbb02 >> psql:q.sql:168: INFO: uuid = 68bfec27-6f9d-49c7-93fc-4218a1d32e18 >> psql:q.sql:168: INFO: uuid = ef86cb1b-2721-4a74-ba21-64fe5148c9d7 >> psql:q.sql:168: INFO: uuid = ef86cb1b-2721-4a74-ba21-64fe5148c9d7 >> psql:q.sql:168: INFO: uuid = ef86cb1b-2721-4a74-ba21-64fe5148c9d7 >> psql:q.sql:168: INFO: uuid = 45141a17-9972-4013-92f2-ced9215f45b5 >> psql:q.sql:168: INFO: uuid = 7c6cbb39-af9f-4de6-b6f8-0ae57bf0ea4f >> psql:q.sql:168: INFO: uuid = 7c6cbb39-af9f-4de6-b6f8-0ae57bf0ea4f >> psql:q.sql:168: INFO: uuid = 59d4c7ff-598d-49ae-9a95-a4051c2b5787 >> >> >> >> -----Original Message----- >> From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp] >> Sent: Tuesday, July 01, 2008 4:56 PM >> To: Eric P. Melbardis >> Cc: pgsql-bugs@postgresql.org >> Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values >> >> Hi. >> >> Umm... >> The test of my box is comfortable. >> >> -- >> -- ossp-uuid test >> -- >> CREATE OR REPLACE FUNCTION test_uuid(gen INTEGER) >> RETURNS VOID AS $$ >> BEGIN >> FOR i IN 1..$1 LOOP >> RAISE INFO 'uuid = %', uuid_generate_v4(); >> END LOOP; >> END; >> $$ >> LANGUAGE 'plpgsql'; >> >> postgres=# CREATE OR REPLACE FUNCTION test_uuid(gen INTEGER) >> postgres-# RETURNS VOID AS $$ >> postgres$# BEGIN >> postgres$# FOR i IN 1..$1 LOOP >> postgres$# RAISE INFO 'uuid = %', uuid_generate_v4(); >> postgres$# END LOOP; >> postgres$# END; >> postgres$# $$ >> postgres-# LANGUAGE 'plpgsql'; >> CREATE FUNCTION >> postgres=# SELECT test_uuid(10); >> INFO: uuid = 427c6f3e-9876-48c5-b44d-776771f7c2c9 >> INFO: uuid = fbab93a8-44d2-4f52-b6ae-01396c6ee17e >> INFO: uuid = d82be630-d2e8-4662-b6ea-db8c56121024 >> INFO: uuid = 33689404-2da8-4a8d-9b94-6aeb284be347 >> INFO: uuid = cd7d10b7-23fa-40df-af74-53314dae235c >> INFO: uuid = 80934b57-4cf4-4ab5-b915-f41f22054265 >> INFO: uuid = abd6f205-1a49-4f4f-b854-c7d611533401 >> INFO: uuid = 2dd64cbc-ee86-419e-ba09-ae538f60cc5a >> INFO: uuid = 751ee0fe-d5ae-473f-b22f-e14c9066fadd >> INFO: uuid = 0d36e47d-c065-4717-96f0-82f53f610a9a >> test_uuid >> ----------- >> >> (1 row) >> >> Regards, >> Hiroshi Saito >> >> ----- Original Message ----- >> From: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com> >> >> >> Hi >> >> I just tried it, slightly better but not a runner.... >> >> Here is a sample of the results I get when running my test script, note >> result vary but lack of duplicates does not. >> >> Why do you not use the CreateUUID function in windows?? >> >> Regards >> >> Eric >> >> ------------------------ result ------------------------------------ >> >> psql:q.sql:152: NOTICE: uuid = dfde33d4-188a-4124-847d-0871a90be1fa >> psql:q.sql:152: NOTICE: uuid = dfde33d4-188a-4124-847d-0871a90be1fa >> psql:q.sql:152: NOTICE: uuid = e6e5dd64-5a1b-4f2e-8443-829d3b325247 >> psql:q.sql:152: NOTICE: uuid = 2bb08ab3-eb57-42a3-a9ac-63e466384d71 >> >> >> -----Original Message----- >> From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp] >> Sent: Sunday, June 29, 2008 3:22 PM >> To: Eric P. Melbardis >> Cc: pgsql-bugs@postgresql.org >> Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values >> >> Hi. >> >> I'm sorry delaying release bugfix was not included in pg8.3.3. >> Please try this. >> http://winpg.jp/~saito/pg_work/OSSP_win32/ >> >> Regards, >> Hiroshi Saito >> >>> >>>The following bug has been logged online: >>> >>>Bug reference: 4274 >>>Logged by: eric melbardis >>>Email address: eric.melbardis@netkitsolutions.com >>>PostgreSQL version: 8.3.3 >>>Operating system: windows xp sp3 >>>Description: uuid returns duplicate values >>>Details: >>> >>>the uuid functions do not return unique values if used sequntially, or >> i >>>believe without too much tme in between invocations. >>> >>>the following test functions returns the same value! >>> >>>------------ test function --------------- >>>create or replace function test_uuid() >>>returns varchar as >>>$body$ >>>begin >>> raise notice 'uuid = %', uuid_generate_v4(); >>> raise notice 'uuid = %', uuid_generate_v4(); >>> raise notice 'uuid = %', uuid_generate_v4(); >>> raise notice 'uuid = %', uuid_generate_v4(); >>>end; >>>$body$ >>>language 'plpgsql' ; >>> >>>-- >>>Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) >>>To make changes to your subscription: >>>http://www.postgresql.org/mailpref/pgsql-bugs >> >> -- >> Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) >> To make changes to your subscription: >> http://www.postgresql.org/mailpref/pgsql-bugs
Hi. This can obtain a comfortable result. http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-20080706.zip I will adjust with Rarf-san. Thanks! Regards, Hiroshi Saito ----- Original Message ----- From: "Hiroshi Saito" <z-saito@guitar.ocn.ne.jp> To: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com>; "Nicolas ANTONINI" <nicolas.antonini@mnm-consulting.com> Cc: <pgsql-bugs@postgresql.org> Sent: Saturday, July 05, 2008 1:28 AM Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values > Hi. > > uuid of MS is the approach different from ossp. Then, I regret that it can't provide on > other platforms....But, I tried it. > http://winpg.jp/~saito/pg_work/OSSP_win32/try-uuidwin32/ > If someone wishes, I think that this is the place where pgfoundry is suitable. > Therefore, I will work an effort to clear the bug of uuid-ossp persistently. Please give > me time to a slight degree. > I appreciate your perseverance. thanks! > > Regards, > Hiroshi Saito > >> ----- Original Message ----- >> From: "Hiroshi Saito" <z-saito@guitar.ocn.ne.jp> >> >>> Hi. >>> >>> Sorry, late reaction....Now, private time has only a few. >>> Umm, It seems that the bug is probably contained in another part. I will investigate at >>> a weekend again. >>> >>> Anyway, thank you for useful information.! >>> >>> Regards, >>> Hiroshi Saito >>> >>> ----- Original Message ----- >>> From: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com> >>> >>> >>> Hi >>> >>> >>> I would suspect that the clock used may not be precise enough >>> >>> Not with standing, why not use the windows CreateUUID?? >>> >>> Slower system seems to fare better... (please see results below) >>> >>> Regards >>> >>> Eric >>> >>> >>> ------------------- >>> My office system is xeon (duo core 5160) 3.00 ghz, 2 gig-ram >>> >>> psql:q.sql:168: INFO: uuid = b2631eb7-26ad-4b40-9276-ed1fc43f0944 >>> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >>> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >>> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >>> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >>> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >>> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >>> psql:q.sql:168: INFO: uuid = 45472e3e-a88e-46ff-b2b1-cfa229b8c568 >>> psql:q.sql:168: INFO: uuid = efd009ab-c38b-4efa-8b0c-4ef0280dc781 >>> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >>> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >>> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >>> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >>> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >>> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >>> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >>> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >>> psql:q.sql:168: INFO: uuid = 10c8c7aa-1367-44fa-ac76-a0f9b1ca69b7 >>> psql:q.sql:168: INFO: uuid = abc4884d-273e-49ce-82aa-46226af549c3 >>> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >>> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >>> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >>> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >>> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >>> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >>> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >>> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >>> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >>> psql:q.sql:168: INFO: uuid = 5d5fce48-987a-46e9-ac03-e567e703aafb >>> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >>> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >>> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >>> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >>> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >>> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >>> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >>> psql:q.sql:168: INFO: uuid = 6c3da39d-467e-484c-9b68-6a20f8980c3a >>> psql:q.sql:168: INFO: uuid = 754268bc-411d-48dd-b68d-5b449c18ecab >>> psql:q.sql:168: INFO: uuid = a0ae6b93-adec-4523-b422-8eba041d76de >>> ----- >>> >>> ------------------- >>> My home system is Pentium D 3.2 hz 2g ram (NON-xeon!) >>> >>> psql:q.sql:168: INFO: uuid = 5dce8d5f-0f36-40fc-a34c-af74991e7fb3 >>> psql:q.sql:168: INFO: uuid = ae9b28c3-1614-4092-93dd-ba1d8392622c >>> psql:q.sql:168: INFO: uuid = ae9b28c3-1614-4092-93dd-ba1d8392622c >>> psql:q.sql:168: INFO: uuid = 14146307-231e-4feb-aa97-a709f6515d05 >>> psql:q.sql:168: INFO: uuid = 6a70d36c-de75-44ca-947b-3785eac42d49 >>> psql:q.sql:168: INFO: uuid = 6a70d36c-de75-44ca-947b-3785eac42d49 >>> psql:q.sql:168: INFO: uuid = 849650aa-1004-4c28-b7b5-dce9bcff22e4 >>> psql:q.sql:168: INFO: uuid = f950d8d9-c257-41cc-8206-7267698755f1 >>> psql:q.sql:168: INFO: uuid = f950d8d9-c257-41cc-8206-7267698755f1 >>> psql:q.sql:168: INFO: uuid = f950d8d9-c257-41cc-8206-7267698755f1 >>> psql:q.sql:168: INFO: uuid = df203405-a3d9-40b8-8195-46cdc7a9aa09 >>> psql:q.sql:168: INFO: uuid = c7ac43bc-2355-4c4d-9b61-defefead41e1 >>> psql:q.sql:168: INFO: uuid = c7ac43bc-2355-4c4d-9b61-defefead41e1 >>> psql:q.sql:168: INFO: uuid = e6a40257-5095-441a-8216-4802b8ccceca >>> psql:q.sql:168: INFO: uuid = d10df458-a372-4ff8-85f5-c6fb8bcdf798 >>> psql:q.sql:168: INFO: uuid = d10df458-a372-4ff8-85f5-c6fb8bcdf798 >>> psql:q.sql:168: INFO: uuid = d10df458-a372-4ff8-85f5-c6fb8bcdf798 >>> psql:q.sql:168: INFO: uuid = 3ff3189b-cbe9-4e7f-b76e-0953337242b1 >>> psql:q.sql:168: INFO: uuid = 210a9418-1e19-4bec-b7ca-a0333d7dbb02 >>> psql:q.sql:168: INFO: uuid = 210a9418-1e19-4bec-b7ca-a0333d7dbb02 >>> psql:q.sql:168: INFO: uuid = 68bfec27-6f9d-49c7-93fc-4218a1d32e18 >>> psql:q.sql:168: INFO: uuid = ef86cb1b-2721-4a74-ba21-64fe5148c9d7 >>> psql:q.sql:168: INFO: uuid = ef86cb1b-2721-4a74-ba21-64fe5148c9d7 >>> psql:q.sql:168: INFO: uuid = ef86cb1b-2721-4a74-ba21-64fe5148c9d7 >>> psql:q.sql:168: INFO: uuid = 45141a17-9972-4013-92f2-ced9215f45b5 >>> psql:q.sql:168: INFO: uuid = 7c6cbb39-af9f-4de6-b6f8-0ae57bf0ea4f >>> psql:q.sql:168: INFO: uuid = 7c6cbb39-af9f-4de6-b6f8-0ae57bf0ea4f >>> psql:q.sql:168: INFO: uuid = 59d4c7ff-598d-49ae-9a95-a4051c2b5787 >>> >>> >>> >>> -----Original Message----- >>> From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp] Sent: Tuesday, July 01, 2008 4:56 >>> PM >>> To: Eric P. Melbardis >>> Cc: pgsql-bugs@postgresql.org >>> Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values >>> >>> Hi. >>> >>> Umm... >>> The test of my box is comfortable. -- >>> -- ossp-uuid test >>> -- >>> CREATE OR REPLACE FUNCTION test_uuid(gen INTEGER) >>> RETURNS VOID AS $$ >>> BEGIN >>> FOR i IN 1..$1 LOOP >>> RAISE INFO 'uuid = %', uuid_generate_v4(); >>> END LOOP; >>> END; >>> $$ >>> LANGUAGE 'plpgsql'; >>> >>> postgres=# CREATE OR REPLACE FUNCTION test_uuid(gen INTEGER) >>> postgres-# RETURNS VOID AS $$ >>> postgres$# BEGIN >>> postgres$# FOR i IN 1..$1 LOOP >>> postgres$# RAISE INFO 'uuid = %', uuid_generate_v4(); >>> postgres$# END LOOP; >>> postgres$# END; >>> postgres$# $$ >>> postgres-# LANGUAGE 'plpgsql'; >>> CREATE FUNCTION >>> postgres=# SELECT test_uuid(10); >>> INFO: uuid = 427c6f3e-9876-48c5-b44d-776771f7c2c9 >>> INFO: uuid = fbab93a8-44d2-4f52-b6ae-01396c6ee17e >>> INFO: uuid = d82be630-d2e8-4662-b6ea-db8c56121024 >>> INFO: uuid = 33689404-2da8-4a8d-9b94-6aeb284be347 >>> INFO: uuid = cd7d10b7-23fa-40df-af74-53314dae235c >>> INFO: uuid = 80934b57-4cf4-4ab5-b915-f41f22054265 >>> INFO: uuid = abd6f205-1a49-4f4f-b854-c7d611533401 >>> INFO: uuid = 2dd64cbc-ee86-419e-ba09-ae538f60cc5a >>> INFO: uuid = 751ee0fe-d5ae-473f-b22f-e14c9066fadd >>> INFO: uuid = 0d36e47d-c065-4717-96f0-82f53f610a9a >>> test_uuid >>> ----------- >>> >>> (1 row) >>> >>> Regards, >>> Hiroshi Saito >>> >>> ----- Original Message ----- >>> From: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com> >>> >>> >>> Hi >>> >>> I just tried it, slightly better but not a runner.... >>> >>> Here is a sample of the results I get when running my test script, note >>> result vary but lack of duplicates does not. >>> >>> Why do you not use the CreateUUID function in windows?? >>> >>> Regards >>> >>> Eric >>> >>> ------------------------ result ------------------------------------ >>> >>> psql:q.sql:152: NOTICE: uuid = dfde33d4-188a-4124-847d-0871a90be1fa >>> psql:q.sql:152: NOTICE: uuid = dfde33d4-188a-4124-847d-0871a90be1fa >>> psql:q.sql:152: NOTICE: uuid = e6e5dd64-5a1b-4f2e-8443-829d3b325247 >>> psql:q.sql:152: NOTICE: uuid = 2bb08ab3-eb57-42a3-a9ac-63e466384d71 >>> >>> >>> -----Original Message----- >>> From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp] Sent: Sunday, June 29, 2008 3:22 >>> PM >>> To: Eric P. Melbardis >>> Cc: pgsql-bugs@postgresql.org >>> Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values >>> >>> Hi. >>> >>> I'm sorry delaying release bugfix was not included in pg8.3.3. Please try this. >>> http://winpg.jp/~saito/pg_work/OSSP_win32/ >>> >>> Regards, >>> Hiroshi Saito >>> >>>> >>>>The following bug has been logged online: >>>> >>>>Bug reference: 4274 >>>>Logged by: eric melbardis >>>>Email address: eric.melbardis@netkitsolutions.com >>>>PostgreSQL version: 8.3.3 >>>>Operating system: windows xp sp3 >>>>Description: uuid returns duplicate values >>>>Details: >>>>the uuid functions do not return unique values if used sequntially, or >>> i >>>>believe without too much tme in between invocations. >>>> >>>>the following test functions returns the same value! >>>> >>>>------------ test function --------------- >>>>create or replace function test_uuid() >>>>returns varchar as $body$ >>>>begin >>>> raise notice 'uuid = %', uuid_generate_v4(); >>>> raise notice 'uuid = %', uuid_generate_v4(); >>>> raise notice 'uuid = %', uuid_generate_v4(); >>>> raise notice 'uuid = %', uuid_generate_v4(); >>>>end; >>>>$body$ >>>>language 'plpgsql' ; >>>> >>>>-- >>>>Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) >>>>To make changes to your subscription: >>>>http://www.postgresql.org/mailpref/pgsql-bugs >>> >>> -- >>> Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) >>> To make changes to your subscription: >>> http://www.postgresql.org/mailpref/pgsql-bugs
Hiroshi Saito wrote: > Hi. > > This can obtain a comfortable result. > http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-20080706.zip > > I will adjust with Rarf-san. Has this been completed? -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
Hi. Yes, Finally Ralf-san adjusts this patch. http://winpg.jp/~saito/pg_work/OSSP_win32/. Therefore, it is contained in the next release.(1.6.3/4) Thanks!! Regards, Hiroshi Saito ----- Original Message ----- From: "Bruce Momjian" <bruce@momjian.us> > Hiroshi Saito wrote: >> Hi. >> >> This can obtain a comfortable result. >> http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-20080706.zip >> >> I will adjust with Rarf-san. > > Has this been completed? > > -- > Bruce Momjian <bruce@momjian.us> http://momjian.us > EnterpriseDB http://enterprisedb.com > > + If your life is a hard drive, Christ can be your backup. + > > -- > Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-bugs
Hiroshi Saito wrote: > Hi. > > Yes, Finally Ralf-san adjusts this patch. > http://winpg.jp/~saito/pg_work/OSSP_win32/. > Therefore, it is contained in the next release.(1.6.3/4) OK, good. Does any of this get applied to contrib/uuid-ossp? -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + If your life is a hard drive, Christ can be your backup. +
Hi I downloaded the latest version from the specified url. Put dll in the postgres "C:\Program Files\PostgreSQL\8.3\lib" directory, an= d restarted postgres service Sorry, still does not work! nkworks3=3D# SELECT test_uuid(10); INFO: uuid =3D a1942895-bdb4-484a-a3fd-6b90e7652d8c INFO: uuid =3D f2b4a00f-52a0-4a63-aac0-0500b9e6d438 INFO: uuid =3D f2b4a00f-52a0-4a63-aac0-0500b9e6d438 INFO: uuid =3D c6607966-0685-4d09-87f5-c593f3dd8924 INFO: uuid =3D b52c719e-6484-49e6-87db-d885d45d7313 INFO: uuid =3D b52c719e-6484-49e6-87db-d885d45d7313 INFO: uuid =3D b52c719e-6484-49e6-87db-d885d45d7313 INFO: uuid =3D b52c719e-6484-49e6-87db-d885d45d7313 INFO: uuid =3D b52c719e-6484-49e6-87db-d885d45d7313 INFO: uuid =3D b52c719e-6484-49e6-87db-d885d45d7313 test_uuid ----------- (1 row) Regards Eric -----Original Message----- From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp] Sent: Thursday, August 21, 2008 8:03 PM To: Bruce Momjian Cc: Eric P. Melbardis; Nicolas ANTONINI; pgsql-bugs@postgresql.org Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values Hi. Yes, Finally Ralf-san adjusts this patch. http://winpg.jp/~saito/pg_work/OSSP_win32/. Therefore, it is contained in the next release.(1.6.3/4) Thanks!! Regards, Hiroshi Saito ----- Original Message ----- From: "Bruce Momjian" <bruce@momjian.us> > Hiroshi Saito wrote: >> Hi. >> >> This can obtain a comfortable result. >> http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-2008= 0706.zip >> >> I will adjust with Rarf-san. > > Has this been completed? > > -- > Bruce Momjian <bruce@momjian.us> http://momjian.us > EnterpriseDB http://enterprisedb.com > > + If your life is a hard drive, Christ can be your backup. + > > -- > Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-bugs
Hi. Ehh?..ugaa..sorry.. I made some mistakes, when it probably worked. Please try this.(The date of a binary is 7/8) http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-20080823.zip I will arrange thoroughly again. Thanks! Regards, Hiroshi Saito ----- Original Message ----- From: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com> Hi I downloaded the latest version from the specified url. Put dll in the postgres "C:\Program Files\PostgreSQL\8.3\lib" directory, and restarted postgres service Sorry, still does not work! nkworks3=# SELECT test_uuid(10); INFO: uuid = a1942895-bdb4-484a-a3fd-6b90e7652d8c INFO: uuid = f2b4a00f-52a0-4a63-aac0-0500b9e6d438 INFO: uuid = f2b4a00f-52a0-4a63-aac0-0500b9e6d438 INFO: uuid = c6607966-0685-4d09-87f5-c593f3dd8924 INFO: uuid = b52c719e-6484-49e6-87db-d885d45d7313 INFO: uuid = b52c719e-6484-49e6-87db-d885d45d7313 INFO: uuid = b52c719e-6484-49e6-87db-d885d45d7313 INFO: uuid = b52c719e-6484-49e6-87db-d885d45d7313 INFO: uuid = b52c719e-6484-49e6-87db-d885d45d7313 INFO: uuid = b52c719e-6484-49e6-87db-d885d45d7313 test_uuid ----------- (1 row) Regards Eric -----Original Message----- From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp] Sent: Thursday, August 21, 2008 8:03 PM To: Bruce Momjian Cc: Eric P. Melbardis; Nicolas ANTONINI; pgsql-bugs@postgresql.org Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values Hi. Yes, Finally Ralf-san adjusts this patch. http://winpg.jp/~saito/pg_work/OSSP_win32/. Therefore, it is contained in the next release.(1.6.3/4) Thanks!! Regards, Hiroshi Saito ----- Original Message ----- From: "Bruce Momjian" <bruce@momjian.us> > Hiroshi Saito wrote: >> Hi. >> >> This can obtain a comfortable result. >> http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-20080706.zip >> >> I will adjust with Rarf-san. > > Has this been completed? > > -- > Bruce Momjian <bruce@momjian.us> http://momjian.us > EnterpriseDB http://enterprisedb.com > > + If your life is a hard drive, Christ can be your backup. + > > -- > Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-bugs
Hi. ----- Original Message ----- From: "Bruce Momjian" <bruce@momjian.us> > Hiroshi Saito wrote: >> Hi. >> >> Yes, Finally Ralf-san adjusts this patch. >> http://winpg.jp/~saito/pg_work/OSSP_win32/. >> Therefore, it is contained in the next release.(1.6.3/4) > > OK, good. Does any of this get applied to contrib/uuid-ossp? There is nothing, uuid-ossp has an official release place. It will evolve uniquely. Ralf-san supplies a great module to us.!:-) As for try-uuidwin32 (native-uuid of winapi), it is not suitable to contrib. However, It may be pgfoundry supposing it is desired. Thanks! Regards, Hiroshi Saito
Ooops, Please wait for this. > Please try this.(The date of a binary is 7/8) > http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-20080823.zip > I will arrange thoroughly again. Anyhow, I have only now stale development environment. The time of a check is still required. thanks. Regards, Hiroshi Saito
Hi Eric-san. Done! please check it. http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-20080824.zip I checked by the following machine. -- Disktop(Windows-XP SP2) Pentium(R) 4 CPU 2.6GHz Memory 2GB -- Notebook(Windows-XP SP2) Pentium III CPU 495 MHz Memory 256MB -- Thanks. Regards, Hiroshi Saito ----- Original Message ----- From: "Hiroshi Saito" <z-saito@guitar.ocn.ne.jp> > Ooops, Please wait for this. > >> Please try this.(The date of a binary is 7/8) >> http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-20080823.zip >> I will arrange thoroughly again. > > Anyhow, I have only now stale development environment. > The time of a check is still required. thanks. > > Regards, > Hiroshi Saito > > -- > Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) > To make changes to your subscription: > http://www.postgresql.org/mailpref/pgsql-bugs
Hi Eric-san.
Thank you for an early check. !
I understand that many users think are same with you.
more gratitude:-)
Regards,
Hiroshi Saito
----- Original Message -----
From: "Eric P. Melbardis" <eric.melbardis@netkitsolutions.com>
Hi
Testing on my home system, looking good... will try on my office system Monday.
Note:
I am assuming that the uuid will mostly be used as a primary key on records that
will exist in replicated databases to guarantee uniqueness. The problem that is see with the
current uuid functions for this purpose is that the generated uuid is very random causing
great performance issues with the index; at least when using oracle and ms sql server, did
not try with postgres, but must be similar. Usually inserting random data into an index of
any kind is a worst case stress test. Hence the older style of uuid, based on mac addresses
and time tend to generate more sequential uuid's, at least when inserting a bunch of records
at once.
In other words it would be nice to have the old fashioned style of uuid's.
Regards
Eric
-----Original Message-----
From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp]
Sent: Saturday, August 23, 2008 8:26 AM
To: Eric P. Melbardis; Bruce Momjian
Cc: Nicolas ANTONINI; pgsql-bugs@postgresql.org
Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values
Hi Eric-san.
Done! please check it.
http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-20080824.zip
I checked by the following machine.
-- Disktop(Windows-XP SP2)
Pentium(R) 4 CPU 2.6GHz
Memory 2GB
-- Notebook(Windows-XP SP2)
Pentium III CPU 495 MHz
Memory 256MB
--
Thanks.
Regards,
Hiroshi Saito
----- Original Message -----
From: "Hiroshi Saito" <z-saito@guitar.ocn.ne.jp>
> Ooops, Please wait for this.
>
>> Please try this.(The date of a binary is 7/8)
>> http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-20080823.zip
>> I will arrange thoroughly again.
>
> Anyhow, I have only now stale development environment.
> The time of a check is still required. thanks.
>
> Regards,
> Hiroshi Saito
>
> --
> Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-bugs
Hi
Testing on my home system, looking good... will try on my office system Mon=
day.
Note:
I am assuming that the uuid will mostly be used as a primary key on=
records that will exist in replicated databases to guarantee uniqueness. T=
he problem that is see with the current uuid functions for this purpose is =
that the generated uuid is very random causing great performance issues wit=
h the index; at least when using oracle and ms sql server, did not try with=
postgres, but must be similar. Usually inserting random data into an index=
of any kind is a worst case stress test. Hence the older style of uuid, ba=
sed on mac addresses and time tend to generate more sequential uuid's, at l=
east when inserting a bunch of records at once.
In other words it would be nice to have the old fashioned style of uuid's.
Regards
Eric
-----Original Message-----
From: Hiroshi Saito [mailto:z-saito@guitar.ocn.ne.jp]
Sent: Saturday, August 23, 2008 8:26 AM
To: Eric P. Melbardis; Bruce Momjian
Cc: Nicolas ANTONINI; pgsql-bugs@postgresql.org
Subject: Re: [BUGS] BUG #4274: uuid returns duplicate values
Hi Eric-san.
Done! please check it.
http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-2008082=
4.zip
I checked by the following machine.
-- Disktop(Windows-XP SP2)
Pentium(R) 4 CPU 2.6GHz
Memory 2GB
-- Notebook(Windows-XP SP2)
Pentium III CPU 495 MHz
Memory 256MB
--
Thanks.
Regards,
Hiroshi Saito
----- Original Message -----
From: "Hiroshi Saito" <z-saito@guitar.ocn.ne.jp>
> Ooops, Please wait for this.
>
>> Please try this.(The date of a binary is 7/8)
>> http://winpg.jp/~saito/pg_work/OSSP_win32/pg8.3.3-win-bin-uuid-ossp-2008=
0823.zip
>> I will arrange thoroughly again.
>
> Anyhow, I have only now stale development environment.
> The time of a check is still required. thanks.
>
> Regards,
> Hiroshi Saito
>
> --
> Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-bugs
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Sat, Aug 23, 2008 at 10:07:58AM -0700, Eric P. Melbardis wrote: > Hi > > Testing on my home system, looking good... will try on my office system Monday. > > Note: > I am assuming that the uuid will mostly be used as a primary > key on records that will exist in replicated databases to guarantee > uniqueness. The problem that is see with the current uuid functions > for this purpose is that the generated uuid is very random causing > great performance issues with the index [...] > Hence the older style of uuid, based on mac > addresses and time tend to generate more sequential uuid's, > at least when inserting a bunch of records at once. > > In other words it would be nice to have the old fashioned style of uuid's. Note that in the days of virtual machines, those more or less "invent" their MACs. Since they just have to be unique in the subnet (or "broadcast domain"), collisions on a more global scale will go unnoticed. But they might bite you in a replicated database scenario. I wouldn't trust "old fashioned uuids" anymore. Regards - -- tomás -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFIsRk8Bcgs9XrR2kYRAkX6AJ9EoGka6NZ8dGijynYr/ujogStqfgCdEhU6 b1yyo+YNpmeqJ2IRMqowMHE= =iZHA -----END PGP SIGNATURE-----
> I wouldn't trust "old fashioned uuids" anymore. > BTW: Windows has an integrated GUID creator. Used for a lot of things. Used in all windows installations. THAT one should be fairly robust, shouldn't it? Would it be possible to have something like ifdef win32 guid=3Dwindows-system-call-to-createguid() ?? Harald --=20 GHUM Harald Massa persuadere et programmare Harald Armin Massa Spielberger Stra=DFe 49 70435 Stuttgart 0173/9409607 no fx, no carrier pigeon - EuroPython 2009 will take place in Birmingham - Stay tuned!
"Harald Armin Massa" <haraldarminmassa@gmail.com> writes:
>> I wouldn't trust "old fashioned uuids" anymore.
> BTW: Windows has an integrated GUID creator. Used for a lot of things.
> Used in all windows installations. THAT one should be fairly robust,
> shouldn't it?
[ you just made me spill coffee all over my keyboard... ] It's never
a good idea to use "Windows" and "robust" in the same sentence.
Try googling for "windows duplicate guids" and similar phrases.
I get 226000 hits on that one.
regards, tom lane