Hi,
an underscore matches a single character, any character. You'd have to
escape it and tell the query what the escape character is if you want
it to be treated as a standard character:
db=# create table t(t text);
CREATE TABLE
db=# insert into t(t) values ('fox'), ('fo_'), ('fo_x');
INSERT 0 3
db=# select * from t;
t
------
fox
fo_
fo_x
(3 rows)
db=# select * from t where t like 'fo_%';
t
------
fox
fo_
fo_x
(3 rows)
db=# select * from t where t like 'fo\_%' escape '\';
t
------
fo_
fo_x
(2 rows)
Cheers,
Paul
On Tue, Mar 10, 2020 at 1:49 PM sivapostgres@yahoo.com
<sivapostgres@yahoo.com> wrote:
>
> Hello,
>
> What returns when I run a query like this;
>
> Select * from test where name like 'co_%';
>
> I expect anything that starts with 'co_' and NOT 'co' only. Am I right? But I get every names that starts with
'co'.Why ?
>
> Happiness Always
> BKR Sivaprakash
>
