Postgresql Performance
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- Re: Selectivity for lopsided foreign key columns, (continued)
- 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
Sudden connection and load average spikes with postgresql 9.3,
eudald_v
Re: Sudden connection and load average spikes with postgresql 9.3,
Scott Marlowe
Does anyone have python code which digests pgbench -r output?,
Josh Berkus
pgbouncer issue,
Sheena, Prabhjot
Slow query (planner insisting on using 'external merge' sort type),
Ian Pushee
Techniques to Avoid Temp Files,
Duane Murphy
How to calculate statistics for one column,
Irineu Ruiz
PGBOUNCER ISSUE PLEASE HELP(Slowing down the site),
Sheena, Prabhjot
Do work_mem and shared buffers have 1g or 2g limit on 64 bit linux?,
Kaijiang Chen
Are there tuning parameters that don't take effect immediately?,
Michael Nolan
pg bouncer issue what does sv_used column means,
Sheena, Prabhjot
Slow query: Postgres chooses nested loop over hash join, whery by hash join is much faster, wrong number of rows estimated,
Sasa Vilic
Row estimates off by two orders of magnitude with hstore,
Patrick Krecker
Slow query - lots of temporary files.,
Johann Spies
Query running slow for only one specific id. (Postgres 9.3) version,
Sheena, Prabhjot
Need more IOPS? This should get you drooling... (5xnvme drives),
Graeme B. Bell
How to reduce writing on disk ? (90 gb on pgsql_tmp),
ben.play
Connection time when using SSL,
Marco Di Cesare
Slow hash join performance with many batches,
Alex Adriaanse
Postmaster eating up all my cpu,
birimblongas
Fwd: Postgres is using 100% CPU,
Ashik S L
Different plan for very similar queries,
Peter J. Holzer
Partitioning and performance,
Ravi Krishna
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