---------- Forwarded message --------- Gönderen: Asya Nevra Buyuksoy <ayisan1...@gmail.com> Date: 10 Şub 2020 Pzt, 10:51 Subject: Re: TOAST table performance problem To: Andreas Joseph Krogh <andr...@visena.com>
I copied my data to the CSV file, yes it is very fast. However, this does not solve my problem. After deserializing the on the front side, I want to visualize my data on the web page effectively. When I select my data one by one with a limit clause, the query executes 200 ms. For example, If I create a function that takes data with a loop, the execution time will be 200 ms*1000=200 sec. Andreas Joseph Krogh <andr...@visena.com>, 7 Şub 2020 Cum, 18:15 tarihinde şunu yazdı: > Try \o <filename> in psql, to redirect the output to file, and prevent it > from processing the json (ie. format it) > > Den 7. februar 2020 15:59:05 CET, skrev Asya Nevra Buyuksoy < > ayisan1...@gmail.com>: >> >> I try it, but there is no enhancement. >> I read this link is about TOAST and also its sub_links; >> https://blog.gojekengineering.com/a-toast-from-postgresql-83b83d0d0683 >> When I execute this query, except JSON data like; >> SELECT paramuser_id, paramperson_id, paramisdeleted, paramactiontime >> FROM zamazin; >> It takes 94 ms. :) >> >> >> Andreas Joseph Krogh <andr...@visena.com>, 7 Şub 2020 Cum, 17:42 >> tarihinde şunu yazdı: >> >>> På fredag 07. februar 2020 kl. 15:35:04, skrev Asya Nevra Buyuksoy < >>> ayisan1...@gmail.com>: >>> >>> I use pgadmin3. >>> >>> >>> Try "psql", it has the lowest overhead (I think). pgAdmin might use time >>> presenting the results etc. which is easy to overlook. >>> >>> -- >>> Andreas Joseph Krogh >>> >> > -- > Sendt fra min Android-enhet med K-9 e-post. Unnskyld min kortfattethet. >
