Postgresql Performance
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- Re: CPU load spikes when CentOS tries to reclaim 'cached' memory, (continued)
- group commit,
Evgeny Shishkin
- Possible performance regression in PostgreSQL 9.2/9.3?,
Linos
- High CPU load when 'free -m' shows low 'free' memory even though large 'cached' memory still available,
Vince Lasmarias
- SELECT outage in semop,
Сурен Арустамян
- Planner doesn't take indexes into account,
Grzegorz Olszewski
- NFS, file system cache and shared_buffers,
Albe Laurenz
- Re: NFS, file system cache and shared_buffers,
Jeff Janes
- Re: NFS, file system cache and shared_buffers,
John Melesky
Profiling PostgreSQL,
Dimitris Karampinas
View has different query plan than select statement,
Geoff Hull
autovacuum vacuum creates bad statistics for planner when it log index scans: 0,
tim_wilson
same query different execution plan (hash join vs. semi-hash join),
Huang, Suya
Query plan good in 8.4, bad in 9.2 and better in 9.3,
Scott Marlowe
how do functions affect query plan?,
常超
Stats collector constant I/O,
Craig James
Adaptive query execution,
Tim Kane
Constraint exclusion won't exclude parent table,
Tim Kane
9.2.4 vs 9.3.0 query planning (sort merge join vs hash join),
Tim Kane
Postgresql 9.3 for a Mobile Backend,
Rajiv Kasera
Check memory consumption of postgresql query,
Phan Công Minh
Specifications for a new server,
Johann Spies
Re: recently and selectively slow, but very simple, update query....,
Stelios Mavromichalis
Re: PostgreSQL's query planner is using the wrong index, what can I do to improve this situation?,
David G Johnston
Optimize query for listing un-read messages,
Andreas Joseph Krogh
Slow queries on 9.3.1 despite use of index,
Michael van Rooyen
Revisiting disk layout on ZFS systems,
Karl Denninger
Varying performacne results after instance restart,
MadDamon
Checkpoints and slow queries,
Elanchezhiyan Elango
pl/pgsql performance,
Mehdi Ravanbakhsh
Server vacuuming the same table again and again,
Дмитрий Шалашов
Poor performance for delete query,
Jonatan Evald Buus
Best practices for update timestamp with/without triggers,
Verghese, Riya
Help on migrating data from MSSQL2008R2 to PostgreSQL 9.3,
Wureka JI
Query on partitioned table not using index,
Souquieres Adam
Best practice question,
Tory M Blue
Workaround: Planner preference for tsquery filter vs. GIN index in fast text search,
Laurence Parry
IP addresses, NetBlocks, and ASNs,
Gary Warner
tsearch2, large data and indexes,
Ivan Voras
Hot standby 9.2.1 PANIC: WAL contains references to invalid pages,
Vishalakshi Navaneethakrishnan
Fast distinct not working as expected,
Franck Routier
unneeded joins on view,
Linos
Queries very slow after data size increases,
sheishere b
Workaround for working_mem max value in windows?,
Nick Eubank
Testing strategies,
Dave Cramer
HFS+ pg_test_fsync performance,
Mel Llaguno
Tuning Postgres for Single connection use,
Nick Eubank
Approach to Data Summary and Analysis,
Robert DiFalco
Checkpoint distribution,
Borodin Vladimir
Interesting case of index un-usage,
Claudio Freire
Optimizing Time Series Access,
Robert Burgholzer
query against large table not using sensible index to find very small amount of data,
Andrew W. Gibbs
performance drop when function argument is evaluated in WHERE clause,
Gerardo Herzig
Nested loop issue,
Manoj Gadi
Performance regressions in PG 9.3 vs PG 9.0,
uher dslij
Batch update query performance,
Hans Drexler
performance degradation after launching postgres cluster using pgpool-II,
Cora Ma
The same query - much different runtimes,
Johann Spies
SSI slows down over time,
Ryan Johnson
PGSQL 9.3 - Materialized View - multithreading,
Nicolas Paris
PGSQL, checkpoints, and file system syncs,
Reza Taheri
Sudden crazy high CPU usage,
Niels Kristian Schjødt
Slow Count-Distinct Query,
Christopher Jackson
Partitions and prepared statements?,
Dave Johansen
semaphore waits and performance stall,
Matthew Spilich
Why shared_buffers max is 8GB?,
Alexey Vasiliev
Stalls on PGSemaphoreLock,
Matthew Spilich
pg_dump vs pg_basebackup,
gianfranco caca
Suboptimal query plan when using expensive BCRYPT functions,
Erik van Zijst
Connection pooling - Number of connections,
Guillaume Smet
slow join not using index properly,
Stefan Amshey
Performance of UNION vs IN,
Jean-Max Reymond
Getting query plan alternatives from query planner?,
Stefan Keller
long lasting select, no io nor cpu usage ?,
Franck Routier
slave wal is ahead of master,
Evgeniy Shishkin
question about partial index,
Yu Zhao
Adding new field to big table,
acanada
Very slow query in PostgreSQL 9.3.3,
fburgess
Ye olde slow query,
Murphy, Kevin
How can I get the query planner to use a bitmap index scap instead of an index scan ?,
Mohan Krishnan
Help me understand why my subselect is an order of magnitude faster than my nested joins,
Eli Naeher
Subselect an order of magnitude faster than nested joins,
Eli Naeher
Help with optimizing a query over hierarchical data,
Damon Snyder
Inefficient filter order in query plan,
Tom Coogan
not using my GIN index in JOIN expression,
Jean-Max Reymond
Query taking long time,
acanada
9.2.4 specified item offset is too large, now what?,
Tory M Blue
9.1.2 Postgres corruption, any way to recover?,
Tory M Blue
Lack of index usage when doing array casts,
Alexey Klyukin
Postgresql tunning-- help needed,
Ashutosh Durugkar
DB size and TABLE sizes don't seem to add up,
David Wall
Why is the optimiser choosing the slower query, or, understanding explain analyze output,
Alistair Bayley
Optimal settings for RAID controller - optimized for writes,
Niels Kristian Schjødt
Can one Dump schema without index/constraints?,
Tory M Blue
Problem with ExclusiveLock on inserts,
Бородин Владимир
Strange performance boost with random(),
M Putz
Performance Benchmarking for data-warehousing instance?,
Huy Nguyen
Bloated tables and why is vacuum full the only option,
Claudio Freire
increasing query time after analyze,
Katharina Koobs
Postgres Query Plan Live Lock,
Pweaver (Paul Weaver)
Planner estimates and VACUUM/autovacuum,
Artur Zając
Increased memory utilization by pgsql backend after upgrade from 9.1.3 to 9.2.6,
Dattaram Porob
Slow query on join with Date >=,
Jim Treinen
PostgreSQL 9.3.2 Performance tuning for 32 GB server,
RAMAKRISHNAN KANDASAMY
trick the query optimiser to skip some optimisations,
Дмитрий Шалашов
WHERE with ORDER not using the best index,
jugnooken
Select hangs and there are lots of files in table and index directories.,
Peter Blair
Slow query (wrong index used maybe),
Stelian Iancu
self join, parameterized base/join rel path row estimation and generally...,
Bongseo Jang
pg_repack solves alter table set tablespace lock,
Ying He
PostgreSQL 9.3.2 Performance issues,
fburgess
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