Re: problem with select * - Mailing list pgsql-performance

From Andreas Joseph Krogh
Subject Re: problem with select *
Date
Msg-id VisenaEmail.34.a77c4eb3cb61266e.14f5eee355a@tc7-visena
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In response to problem with select *  (bhuvan Mitra <bhuvanrjb@gmail.com>)
List pgsql-performance
På mandag 24. august 2015 kl. 09:04:07, skrev bhuvan Mitra <bhuvanrjb@gmail.com>:
Hello,
 
I have a table with 12 columns and 20 Million rows. While writing the table I do not find any problem but when reading that I have some issues faced. When I perform a 'select * from table limit 14000000;' (selecting 14million rows), it is working fine. If the limit value is 15000000, it is throwing the error as 'out of memory'.
 
If the query is 'select * from table' , The process is getting killed by displaying the message 'killed'.
 
Kindly tell me where it is going wrong. I have 6MB cache, 1.6GHz CPU, linux 14.04 OS, 8GB RAM.
 
In what application are you performing these queries?
 
--
Andreas Joseph Krogh
CTO / Partner - Visena AS
Mobile: +47 909 56 963
 
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