Hello,
I use Postgres with version PostgreSQL 11.5 on x86_64-pc-linux-gnu, compiled by gcc (Debian 7.3.0-5) 7.3.0, 64-bit;
select ltrim('TRYTND', 'TRY’); — result is ND but I expected TND
select ltrim('TRYUSD', 'TRY’); — result is USD it is same what I expect
I need to change with;
select substring('TRYTND', length('TRY')+1, length('TRYTND')); — TND
select substring('TRYUSD', length('TRY')+1, length('TRYUSD')); — USD
Is there some thing that I misunderstood?
I thing it does not look for all of second parameters and works recursive.
select ltrim('TRYTND', 'TRY’);
1. TRYTND TRY
2. TND TRY — recursive
3. ND TRY — it only found first character of second parameter(T) into first parameter and removed it on first parameter.
Thanks,