Portal name in cursor

Hello Does anyone know why assigning a string to a refcursor before opening it makes fetching data faster from a cursor? begin; select * from func1() ; fetch all from "test"; end; in func1 i set refcursor_variable := 'test';

Refcursor

Hi I new to cursors May I know why the below takes so long? BEGIN; select * from func1() ; fetch all from ""; end; Select * from func1() ; on its own is very fast

Tables used by a function

Hello Is there a quick way to list tables used by a function if the function is big to search for tables manually? regards

Re: converting text to bytea

Hi Is there a reason why i'm getting text when i run the below select convert_to('some_text', 'UTF8')i get back 'some_text' regards On Mon, Feb 22, 2021 at 9:09 AM Pavel Stehule wrote: > Hi > > po 22. 2. 2021 v 7:37 odesílatel Yambu napsal:

converting text to bytea

Hello This sounds simple, but im not getting the results when i cast text to bytea like this first_name::bytea . Is there another way to do this? regards

Connecting to database through username,passphrase and private key on PgAdmin

Hello May i please know how i can connect to a db server using pgAdmin. How do i use the combination of username,passphrase and private key . Below is when i connect using putty. I then login as postgres user and connect to the database. login as: user1 Authenticating with public key "*

Postgres freelancing sites

Hello May I know where I can get freelancer jobs for postgres? regards

Postgres blog sites centrally

Hi Is there a central place where i can get postgres blogs as they are written by different blog sites, e.g. can google news app be tuned to just bring postgres blogs only?

Optimize query

Hi How would you optimize a query with greater than in where clause eg select * from table1 where id > 1000 and there is an index on id column regards

RAISE INFO in function

Hi May i know if RAISE INFO impacts performance significantly in a function? Should i comment them out once i'm done using/debugging ? regards

Temporary tables usage in functions

Hi May I know if a temporary table is dropped at the end of a function? Also may I know if excessive use of temporary tables may cause locks? regards

greater than vs between in where clause

May i know if there is a difference in speed between 1 ,2 and 3 below , if column start_date is indexed 1. select * from table_1 where start_date > '1 Oct 2020' 2. select * from table_1 where start_date between '1 Oct 2020' and now() 3. select * from table_1 where start_date between '1 Oct 2020

Large index

What disadvantage does a large table (30mil records) has over a small table about 20k records when it comes to querying using an indexed column?