Re: BUG #18560: Inconsistent Behavior of PostgreSQL 'LIKE' Operator

Hi,

> In sql1, the result of the (" like ") query returns true. In sql2 (c1 like
> c1) the return value is false when c1 is ".
> I think this is contradictory and there may be some bug between the 'like'
> and the query column.

Actually the result is consistent:

```
SELECT c1, c1 = ' ' FROM t0;
c1 | ?column?
----+----------
1 | f
| t
(2 rows)

select ' '::char(1) like ' '::char(1);
?column?
----------
f
(1 row)
```

Although I find it puzzling too that LIKE operators for CHAR(1) and
TEXT work differently. Not 100% sure if this is intended.

Thoughts?

--
Best regards,
Aleksander Alekseev