Обсуждение: table is hanging
Hi Team ,when i am trying to do select on one table , its hanging and not giving any output.Can someone please advice what should I check for this ?
To find out if there is some locking problem or just takes time for the client to handle the data, ask just for a small subset of the table.
If
select * from table limit 1;
works it is probably just taking a lot of time to send all the data to the client.
If the data set includes something large also 1 ow can be heavy.
You can even try with limit 0 to just find out if the table responses.
The client software is often the largest bottleneck, not the database.
/Nicklas
ADding to this, this no of records are present on this table : 19087314On Fri, May 31, 2019 at 4:28 PM Sonam Sharma <sonams1209@gmail.com> wrote:Hi Team ,when i am trying to do select on one table , its hanging and not giving any output.Can someone please advice what should I check for this ?
To find out if there is some locking problem or just takes time for the client to handle the data, ask just for a small subset of the table.
If
select * from table limit 1;
works it is probably just taking a lot of time to send all the data to the client.
If the data set includes something large also 1 ow can be heavy.
You can even try with limit 0 to just find out if the table responses.
The client software is often the largest bottleneck, not the database.
/Nicklas
On 5/31/19 1:03 PM, Sonam Sharma wrote:ADding to this, this no of records are present on this table : 19087314On Fri, May 31, 2019 at 4:28 PM Sonam Sharma <sonams1209@gmail.com> wrote:Hi Team ,when i am trying to do select on one table , its hanging and not giving any output.Can someone please advice what should I check for this ?
I only fetched 2 rows and it's respondingOn Fri, May 31, 2019, 4:39 PM Nicklas Avén <nicklas.aven@jordogskog.no> wrote:To find out if there is some locking problem or just takes time for the client to handle the data, ask just for a small subset of the table.
If
select * from table limit 1;
works it is probably just taking a lot of time to send all the data to the client.
If the data set includes something large also 1 ow can be heavy.
You can even try with limit 0 to just find out if the table responses.
The client software is often the largest bottleneck, not the database.
/Nicklas
On 5/31/19 1:03 PM, Sonam Sharma wrote:ADding to this, this no of records are present on this table : 19087314On Fri, May 31, 2019 at 4:28 PM Sonam Sharma <sonams1209@gmail.com> wrote:Hi Team ,when i am trying to do select on one table , its hanging and not giving any output.Can someone please advice what should I check for this ?
Am 31.05.19 um 14:06 schrieb Saurabh Agrawal: > Which query are you trying to run? you can show us also the EXPLAIN <your query> - Output. Regards, Andreas -- 2ndQuadrant - The PostgreSQL Support Company. www.2ndQuadrant.com