Problem With Comparing 2 Text Columns In 2 Tables

Hi,
I have 2 tables and each has a text column. When i compared the 2
columns with the LIKE operator i found something strange.

create table test1( var1 text )
create table test2( var1 text )

insert into test1 values ( '-- [ CustomerType = 1 ]' )
insert into test2 values ( '-- [ CustomerType = 1 ]' )

select * from test1, test2
where test1.var1 like test2.var1

The last query surprisingly did not return any results. However when i
took of the '[' in the text data and had something like this

insert into test1 values ( '-- CustomerType = 1 ]' )
insert into test2 values ( '-- CustomerType = 1 ]' )

the query returned expected results, showing one row.

any helpful would be great.

Regards,
Arun Prakash. B