It is all default values. I just check maintenance_work_mem and indeed it is 64MB.
At first I gave 2GB ram to docker and later I increased ram to 4GB. It did not make much difference when ram increased from 2GB to 4GB. I will try increasing maintenance_work_mem and see if it helps. 发件人: Michael Lewis <mle...@entrata.com> 日期: 2019年9月11日 星期三 上午12:11 收件人: 黄 少君 <jimmy_hu...@live.com> 抄送: "pgsql-general@lists.postgresql.org" <pgsql-general@lists.postgresql.org> 主题: Re: pg full text search very slow for Chinese characters >My postgres instance is based on docker image postgres:11 and runs on my >MacBook Pro i7 16GB. How much ram and such did you give to this vm? >To my surprise, postgres 11 is extremely slow when creating a full text index. >I added a column of tsvector type and tried to create an index on that column. >Pg could not finish creating a GIN index for a long time and I had to cancel >the execution.I then tried to create a partial full text index for 500 rows >and it took postgres 2 to 3 minutes to create the index. Did you customize any config? maintenance_work_mem specifically would be relevant to the time to create an index and default value is only 64MB. Especially if you are running a spinning hard drive and not ssd, then this could be problematic.
