[GENERAL] PGSQL java applets
Hi, Is it possible to use pgsql in java-applets. If it is, any skeleton app woudl be greatly appriciated... /Svenne -- Mail [EMAIL PROTECTED] - [EMAIL PROTECTED] - PGP key id : 0xDF484022 ICQ: 5434480 - http://www.krap.dk - http://www.krap.net PGP Key http://keys.pgp.dk:11371/pks/lookup?op=getsearch=0xDF484022 ---(end of broadcast)--- TIP 6: Have you searched our list archives? http://archives.postgresql.org
[GENERAL] explain, planner and more..
Hi, how has the following to be read.. (ie. what is the total cost of the query)... 4.05, 5.88 or ? Why does the planner choose not to use numberdomain_pkey as index on numberdomain ? The table layout is quite bad (due to a lot of last minute-changes) snip # explain select c.*, (select count(*) from numberservice ns where ns.customerid=c.customerid and (exists (select * from numbermail nm where nm.domainnr = ns.domainnr) or exists(select * from numberdomain nd where nd.domainnr=ns.domainnr))) as amount from customer c where c.status=0; NOTICE: QUERY PLAN: Seq Scan on customer c (cost=0.00..4.05 rows=46 width=200) SubPlan - Aggregate (cost=5.88..5.88 rows=1 width=0) - Index Scan using numberservice_customerid_ix on numberservice ns (cost=0.00..5.88 rows=1 width=0) SubPlan - Index Scan using numbermail_pkey on numbermail nm (cost=0.00..2.01 rows=1 width=47) - Seq Scan on numberdomain nd (cost=0.00..1.85 rows=1 width=31) EXPLAIN -- Mail [EMAIL PROTECTED] - [EMAIL PROTECTED] - PGP key id : 0xDF484022 ICQ: 5434480 - http://www.krap.dk - http://www.krap.net PGP Key http://keys.pgp.dk:11371/pks/lookup?op=getsearch=0xDF484022 ---(end of broadcast)--- TIP 4: Don't 'kill -9' the postmaster
[GENERAL] PG-upgrade : 7.0.3 - 7.1.2
Hi, I administer an quite important PGsql v. 7.0.3 installation... We would very much like to upgrade, BUT we cannot afford to be offline for a very long period .. half an hour is acceptable. I have tried to install the new one under a new location and have done an init-db.. both are running smoothly together (the new one has a non-default port as long as the old one is necessary) I have tried : pg_dumpall fulldump.sql /path/to/new/version/bin/psql -h 5431 (inside psql): \i fulldump.sql ### This is the output (and the errors i get) : You are now connected to database template1. psql:fulldump.sql:2: ERROR: Relation 'tmp_pg_shadow' already exists DELETE 1 psql:fulldump.sql:4: ERROR: pg_ownercheck: invalid user id 27 psql:fulldump.sql:5: ERROR: pg_aclcheck: invalid user id 27 psql:fulldump.sql:6: invalid command \N psql:fulldump.sql:7: invalid command \N psql:fulldump.sql:8: invalid command \N psql:fulldump.sql:9: invalid command \N psql:fulldump.sql:10: invalid command \N psql:fulldump.sql:10: invalid command \N psql:fulldump.sql:11: invalid command \N psql:fulldump.sql:11: invalid command \N psql:fulldump.sql:12: invalid command \N psql:fulldump.sql:12: invalid command \N psql:fulldump.sql:13: invalid command \N psql:fulldump.sql:13: invalid command \N psql:fulldump.sql:14: invalid command \N psql:fulldump.sql:15: invalid command \N psql:fulldump.sql:16: invalid command \N psql:fulldump.sql:17: invalid command \. psql:fulldump.sql:18: ERROR: parser: parse error at or near mailhandler psql:fulldump.sql:19: ERROR: pg_aclcheck: invalid user id 27 psql:fulldump.sql:20: invalid command \. You are now connected to database template1 as user postgres. psql:fulldump.sql:22: ERROR: CREATE DATABASE: database sk already exists You are now connected to database sk as user postgres. psql:fulldump.sql:24: \connect: FATAL 1: user sk does not exist ### how do i do it most easily ? Tia Svenne -- [EMAIL PROTECTED] http://www.krap.dk ICQ 5434480 PGP-key http://keys.pgp.dk:11371/pks/lookup?op=getsearch=0xDF484022 PGP @ http://www.pgp.com / http://www.phpi.com ---(end of broadcast)--- TIP 6: Have you searched our list archives? http://www.postgresql.org/search.mpl
[GENERAL] Speed...
Hi again, I have been following this list for approx. 6600 messages (i think that is 2 months or so.. .) - an yes.. Like the Cardassian Order I keep everything :) A couple of time, ppl has been talking about speed.. What about a couple of benchmarks from your systems, so that us newbies (or almost) can se, how much we can expect to be able to tune up to.. I can go first :) An comments for further tuning is apreciated... btw.. the box gets its memory doubled sometimes next week. My setup: Duron 750 MHz. 256 Megs memory IBM Deskstar IDE-harddrive (no raid, no nothing) Running 7.1.2 ### BTW: this is not the box mentioned in another question this evening.. this I my private toybox.. some content of postgresql.conf : max_connections = 512 hostname_lookup = false sort_mem = 4096 shared_buffers = 1024 # min 16 sync = false #wal_buffers = 8 #wal_files = 0 #wal_sync_method = fsync #wal_debug = 0 #commit_delay = 0 #commit_siblings = 5 #checkpoint_segments = 3 #checkpoint_timeout = 300 (a side question ... does this mean, that I even haven't enabled the magic WAL ?) using pgbench from /contrib i get : sk@kitten:/usr/src/postgresql-7.1.2/contrib/pgbench ./pgbench pgbench -c 40 starting vacuum...end. transaction type: TPC-B (sort of) scaling factor: 1 number of clients: 40 number of transactions per client: 10 number of transactions actually processed: 400/400 tps = 106.943436(including connections establishing) tps = 125.524811(excluding connections establishing) sk@kitten:/usr/src/postgresql-7.1.2/contrib/pgbench ./pgbench pgbench -c 100 starting vacuum...end. transaction type: TPC-B (sort of) scaling factor: 1 number of clients: 100 number of transactions per client: 10 number of transactions actually processed: 1000/1000 tps = 88.924498(including connections establishing) tps = 101.360871(excluding connections establishing) sk@kitten:/usr/src/postgresql-7.1.2/contrib/pgbench ./pgbench pgbench -c 200 starting vacuum...end. transaction type: TPC-B (sort of) scaling factor: 1 number of clients: 200 number of transactions per client: 10 number of transactions actually processed: 2000/2000 tps = 67.320263(including connections establishing) tps = 74.500643(excluding connections establishing) sk@kitten:/usr/src/postgresql-7.1.2/contrib/pgbench ./pgbench pgbench -c 300 starting vacuum...end. transaction type: TPC-B (sort of) scaling factor: 1 number of clients: 300 number of transactions per client: 10 number of transactions actually processed: 3000/3000 tps = 48.291555(including connections establishing) tps = 51.892547(excluding connections establishing) Tia Svenne -- [EMAIL PROTECTED] http://www.krap.dk ICQ 5434480 PGP-key http://keys.pgp.dk:11371/pks/lookup?op=getsearch=0xDF484022 PGP @ http://www.pgp.com / http://www.phpi.com ---(end of broadcast)--- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
