Comments on: PostgreSQL: How to measure the size of a Table Row and Data Page? https://www.dbrnd.com/2016/03/postgresql-how-to-measure-the-size-of-a-table-row-and-data-page/ BIGData | NoSQL | MSSQL | MySQL | PostgreSQL Tue, 03 Jul 2018 19:10:04 +0000 hourly 1 https://wordpress.org/?v=7.0.4 By: Anvesh Patel https://www.dbrnd.com/2016/03/postgresql-how-to-measure-the-size-of-a-table-row-and-data-page/#comment-6513 Tue, 03 Jul 2018 19:10:04 +0000 https://www.dbrnd.com/?p=2193#comment-6513 Hey Alok,

You are right, that was my mistake. It is 8kb data page size not a row size, but if a row size is 7kb then we should spare some free space for future alter. So we have to check the size of the row as well.

If I am wrong, please correct me.

I can see that you are from EnterpriseDB so please share some more internal on this and later I will update this article accordingly.

]]> By: Alok Mishra https://www.dbrnd.com/2016/03/postgresql-how-to-measure-the-size-of-a-table-row-and-data-page/#comment-6509 Mon, 02 Jul 2018 06:24:32 +0000 https://www.dbrnd.com/?p=2193#comment-6509 what do you mean by “your total row size is under 8kb”… If I do “tuple_len / tuple_count”, I get average tuple size (tuple size of a single row).
So, should I consider this average tuple size (tuple size of a single row) and compare it wth 8kb block size? If not, can you please explain your sentence?
Thanks for your help.

]]> By: ptcgh https://www.dbrnd.com/2016/03/postgresql-how-to-measure-the-size-of-a-table-row-and-data-page/#comment-5939 Thu, 19 Oct 2017 00:03:43 +0000 https://www.dbrnd.com/?p=2193#comment-5939 i find you use “SUM(length(t::text)) AS TextLength” ,how about these words used in a big table?

]]> By: Anvesh Patel https://www.dbrnd.com/2016/03/postgresql-how-to-measure-the-size-of-a-table-row-and-data-page/#comment-5809 Wed, 23 Aug 2017 06:39:45 +0000 https://www.dbrnd.com/?p=2193#comment-5809 please tell me or contact me

]]> By: dheer choudhary https://www.dbrnd.com/2016/03/postgresql-how-to-measure-the-size-of-a-table-row-and-data-page/#comment-5808 Wed, 23 Aug 2017 06:14:33 +0000 https://www.dbrnd.com/?p=2193#comment-5808 hello sir i have a question about postgresql database

]]> By: Anvesh Patel https://www.dbrnd.com/2016/03/postgresql-how-to-measure-the-size-of-a-table-row-and-data-page/#comment-5398 Thu, 17 Nov 2016 17:49:40 +0000 https://www.dbrnd.com/?p=2193#comment-5398 Thank you Ronnie for this update.
I have modified this article. Please visit again.
Thanks,

]]> By: Ronnie https://www.dbrnd.com/2016/03/postgresql-how-to-measure-the-size-of-a-table-row-and-data-page/#comment-5397 Wed, 16 Nov 2016 00:17:05 +0000 https://www.dbrnd.com/?p=2193#comment-5397 ERROR: relation “public.tbl_testjson” does not exist
LINE 7: FROM public.tbl_testjson AS t

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