postgresql v7.1.3 bug report

Dear Sir,

How are you. I need you help!

I make postgres 7.1.3 version in my linux system with --enable-multibyte=EUC_TW, but

I got some problem when I exec sql command below, in chinese character (CName ~* '帆'') the chicode is 0xA67C -> 0x7c is ascii '|" , I guess you system reject '|' this byte, but it was Big5 Code 2nd byte , How can I avoid this proble??

SELECT * FROM ifabinstn Where((CName ~* '帆') OR FALSE) ORDER BY CName

Warning: PostgreSQL query failed: ERROR: Invalid regular expression: empty expression or subexpression in DB/pgsql.php on line 163
ERROR: Invalid regular expression: empty expression or subexpression

would you give some advise to solve this problem??

Thank you very much

Best Rgds.
Pierre Ho