[PERFORM] Ordering on GIN Index

2016-12-13 Thread Rory
Hello mailing list! We have a JSONB column in a table that has a key (string) => value (int) structure. We want to be able to create a btree index that accepts an arbitrary key to allowing sorting by key. Table Example: > ++--+ > | ID |

Re: [PERFORM] Querying with multicolumn index

2016-12-13 Thread Daniel Blanch Bataller
Hi all,If anyone still interested in the issue I think I have a very plausible explanation of Eric’s postgresql bad index choice that is: bloated updates_driver_id_time_idx index.Though it’s possible to fool postgresql planner, as I’ve shown in previous tests, this happens with a very concrete data

Re: [PERFORM] Isolation of tx logs on VMware

2016-12-13 Thread Joshua D. Drake
On 12/13/2016 12:16 PM, ProPAAS DBA wrote: Hi All; I'm not a VMware expert, however I thought VMware would allow the creation of multiple disk volumes and attach them via separate mount points. Is this not true? If it is an option can someone point me to a how to... Yes it is possible to do

[PERFORM] Isolation of tx logs on VMware

2016-12-13 Thread ProPAAS DBA
Hi All; We have a client running on VMware, they have heavy write traffic and we want to isolate the IO for the tx logs (pg_xlog). However it seems the best plan based on feedback from the client is either (a) simply leave the pg_xlog dir in the VMDK or (b) relocate pg_xlog to NAS/NFS I'