Strategy for materialisation and centralisation of data

2020-05-22 Thread Rory Campbell-Lange
Apologies for the cross-post to the general list. I'm keen to know if there are any good reasons apart from disk space and possible replication connection overhead to avoid the strategy proposed below. We have quite a few databases of type a and many of type b in a cluster. Both a and b types

Re: Request to help on GIS Query improvement suggestion.

2020-05-22 Thread Michael Lewis
Your indexes and operators are not compatible. You have added a btree index on md5 function result and are not using md5 in your query, and also using LIKE operator not one of the supported ones. I believe it might use a btree operator (plain value, not md5 result) if you are always searching for

Request to help on Query improvement suggestion.

2020-05-22 Thread devchef2020 d
Hi Team, Thanks for your support. Could someone please suggest on the below query. One of the query which was created on GIS data is taking a long time and even it is not taking the index as well. I have included all the required details for reference. Database Stack: ===

Request to help on GIS Query improvement suggestion.

2020-05-22 Thread postggen2020 s
Hi Team, Thanks for your support. Could someone please suggest on the below query. One of the query which was created on GIS data is taking a long time and even it is not taking the index as well. I have included all the required details for reference. Database Stack: ===

Re: Suggestion to improve query performance for GIS query.

2020-05-22 Thread postgann2020 s
Thanks for your support David and Afsar. Hi David, Could you please suggest the resource link to "Add a trigger to the table to normalize the contents of column1 upon insert and then rewrite your query to reference the newly created normalized fields." if anything available. So that it will

Re: Suggestion to improve query performance for GIS query.

2020-05-22 Thread Mohammed Afsar
Dear team, Kindly try to execute the vacuum analyzer on that particular table and refresh the session and execute the query. VACUUM (VERBOSE, ANALYZE) tablename; Regards, Mohammed Afsar Database engineer On Fri, May 22, 2020, 12:30 PM postgann2020 s wrote: > Hi Team, > > Thanks for your

Re: Suggestion to improve query performance for GIS query.

2020-05-22 Thread David G. Johnston
On Thursday, May 21, 2020, postgann2020 s wrote: > > SELECT seq_no+1 INTO pair_seq_no FROM SCHEMA.TABLE WHERE (Column1 like > '%,sheath--'||cable_seq_id ||',%' or Column1 like 'sheath--'||cable_seq_id > ||',%' or Column1 like '%,sheath--'||cable_seq_id or > Column1='sheath--'||cable_seq_id)

Suggestion to improve query performance for GIS query.

2020-05-22 Thread postgann2020 s
Hi Team, Thanks for your support. Could you please suggest on below query. EnvironmentPostgreSQL: 9.5.15 Postgis: 2.2.7 The table contains GIS data which is fiber data(underground routes). We are using the below query inside the proc which is taking a long time to complete.

Suggestion to improve query performance of data validation in proc.

2020-05-22 Thread postgann2020 s
Hi Team, Thanks for your support. Could you please suggest on below query. We have multiple long procs that are having 100s of data validations and currently we have written as below. *** if (SELECT 1 FROM SCHEMA.TABLE WHERE column=data AND column=data) then statements etc..