Postgresql Performance
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Odd behavior with indices,
joe meiring
Cloud versus buying my own iron,
Craig James
Filesystem and Disk Partitioning for New Server Setup,
dstibrany
Why Postgres use a little memory on Windows.,
tuanhoanganh
Architectural question,
Moreno Andreo
Running lots of inserts from selects on 9.4.5,
Dan Langille
Primary key index suddenly became very slow,
Gustav Karlsson
gin performance issue.,
Marc Mamin
bad COPY performance with NOTIFY in a trigger,
Filip Rembiałkowski
Bitmap and-ing between btree and gin?,
Jordi
Understanding ANALYZE memory usage with "big" tsvector columns,
Jérôme Augé
View containing a recursive function,
Mathieu De Zutter
PostgreSQL seems to create inefficient plans in simple conditional joins,
Hedayat Vatankhah
jsonb_agg performance,
jfleming
Hash join gets slower as work_mem increases?,
Albe Laurenz
performance issue with inherited foreign table,
Dzmitry Nikitsin
Postgres partitions-query scanning all child tables,
rverghese
Primary key index partially used,
Florian Gossin
High Planning Time,
Phil S
Query order of magnitude slower with slightly different where clause,
Adam Brusselback
How we made Postgres upserts 2-3* quicker than MongoDB,
Mark Zealey
Queries intermittently slow,
Scott Rankin
Materialized view performance problems,
Tom McLoughlin
Proposal for unlogged tables,
Mark Zealey
Plan differences,
Anton Melser
Connections "Startup",
Artem Tomyuk
Terrible plan choice for view with distinct on clause,
Adam Brusselback
Selectivity for lopsided foreign key columns,
Mikkel Lauritsen
Can't explain db size,
Matteo Grolla
Getting an optimal plan on the first execution of a pl/pgsql function,
Pedro França
Performance difference between Slon master and slave,
Matthew Lunnon
partitioned table set and indexes,
Rick Otten
Estimation row error,
Mathieu VINCENT
Advise needed for a join query with a where conditional,
ankur_adwyze
postgresql upgrade from 9.3 to 9.4 error,
Sheena, Prabhjot
checkpoints, proper config,
Tory M Blue
Slow Index Creation, why is it not consuming more memory.,
Tory M Blue
ossp-uuid: Performance considerations for different UUID approaches?,
Brendan McCollam
Index scan cost calculation,
Glyn Astill
No index only scan on md5 index,
Adam Brusselback
Query that took a lot of time in Postgresql when not using trim in order by,
Blas Pico
Why is now()::date so much faster than current_date,
Thomas Kellerer
Simple delete query is taking too long (never ends),
Massalin Yerzhan
Queries getting canceled inside a proc that seems to slow down randomly,
Skarsol
Hanging query on a fresh restart,
Jason Jho
Slow 3 Table Join with v bad row estimate,
David Osborne
querying jsonb for arrays inside a hash,
Joe Van Dyk
HASH,
Artem Tomyuk
PostgreSQL limitation,
FattahRozzaq
Slow query in trigger function,
Guido Niewerth
GIN index always doing Re-check condition, postgres 9.1,
Andrey Osenenko
Query optimizer plans with very small selectivity estimates,
Matthew Bellew
Scalability to more than 64 cores With PG 9.4 and RHEL 7.1 Kernel 3.10,
Javier Muro
Partition Constraint Exclusion Limits,
GMail
Query planner wants to use seq scan,
Bertrand Paquet
GroupAggregate and Integer Arrays,
David Osborne
Recursive query performance issue,
Jamie Koceniak
query partitioned table is very slow,
Vladimir Yavoskiy
SELECT slows down on sixth execution,
Jonathan Rogers
V8 optimisation (if you're using javascript in postgres),
Graeme B. Bell
Having some problems with concurrent COPY commands,
Shaun Thomas
3000x Slower query when using Foreign Data Wrapper vs. local,
Mohammad Habbab
LIMIT 1 poor query plan,
Marcio Ribeiro
large object write performance,
Bram Van Steenlandt
Re: large object write performance,
Graeme B. Bell
One long transaction or multiple short transactions?,
Carlo
shared-buffers set to 24GB but the RAM only use 4-5 GB average,
FattahRozzaq
<Possible follow-ups>
Re: shared-buffers set to 24GB but the RAM only use 4-5 GB average,
FattahRozzaq
Multi processor server overloads occationally with system process while running postgresql-9.4,
ajaykbs
dump restoration performance,
rlemaroi
Performance problem with gin index,
Bertrand Paquet
Another parallel postgres project...,
Graeme B. Bell
Queries Per Second (QPS),
Adam Scott
Occasional Really Slow Running Updates/Inserts,
Dave Stibrany
degrading inser performance,
Eildert Groeneveld
VACUUM VERBOSE ANALYZE taking long time to process.,
anil7385
Announcing the public availability of the TPCx-V prototype,
Reza Taheri
Server slowing down over time,
Jean Cavallo
query with pg_trgm sometimes very slow,
Volker Böhm
PostgreSQL Tuning for Messaging/Messenger/Chatting Application,
FattahRozzaq
Query > 1000× slowdown after adding datetime comparison,
twoflower
is there any way we can push join predicate into inner table,
=?gb18030?b?sKTM38jL?=
Index creation running now for 14 hours,
Tory M Blue
Gist indexing performance with cidr types,
Henrik Thostrup Jensen
Long running query: How to monitor the progress,
Johann Spies
problem with select *,
bhuvan Mitra
query not using GIN index,
Guo, Yun
Performance bottleneck due to array manipulation,
Genc, Ömer
Most efficient way of querying M 'related' tables where N out of M may contain the key,
Stephane Bailliez
Strange query stalls on replica in 9.3.9,
Josh Berkus
Re: Strange query stalls on replica in 9.3.9,
Jeff Janes
Query Plan Performance on Partitioned Table,
Rural Hunter
Slow HashAggregate/cache access,
Alexandre de Arruda Paes
Performance issue with NestedLoop query,
Ram N
incredible surprise news from intel/micron right now...,
Graeme B. Bell
autofreeze/vacuuming - avoiding the random performance hit,
Graeme B. Bell
Any ideas how can I speed up this query?,
Priyank Tiwari
Are many idle connections bad?,
Craig James
bitmap heap scan recheck for gin/fts with no lossy blocks,
Laurent Debacker
parallelisation provides postgres performance (script example + ppt slides),
Graeme B. Bell
How to find the culprit in server load spikes?,
Moreno Andreo
hyperthreadin low performance,
Jeison Bedoya Delgado
Insert vs Update,
Robert DiFalco
Re: [ADMIN] could not create shared memory segment: Invalid argument,
Ryan King - NOAA Affiliate
Query planner not using indexes with JOIN query and OR clause,
Ben Hoyt
QUERY PLANNER - Indexe mono column VS composite Index,
Nicolas Paris
Re: [BUGS] BUG #13493: pl/pgsql doesn't scale with cpus (PG9.3, 9.4),
Graeme B. Bell
pg_stat_all_indexes understand,
Nicolas Paris
Hmmm... why does CPU-intensive pl/pgsql code parallelise so badly when queries parallelise fine? Anyone else seen this?,
Graeme B. Bell
wildcard text filter switched to boolean column, performance is way worse,
Mike Broers
9.5alpha1 vs 9.4,
Mkrtchyan, Tigran
<Possible follow-ups>
Re: 9.5alpha1 vs 9.4,
Mkrtchyan, Tigran
Hmmm... why does pl/pgsql code parallelise so badly when queries parallelise fine? Anyone else seen this?,
Graeme B. Bell
New server: SSD/RAID recommendations?,
Craig James
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