Multi-byte character bug

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Two bugs has been found in the SQL parser and Multibyte char support:
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1.       =A1=A7Problem connecting to database: java.sql.SQLException: ERROR:
Invalid EUC_TW character sequence found (0xb27a)=A1=A8 was reported in using
JDBC driver to insert record, similar error reported when using ODBC
driver and psql, since auto-conversion from client to server should
convert the charcter to a valid EUC_TW char, therefore this is a bug
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2.       inserting record with =A1=A7=C0\=A1=A8 chinese char, the SQL parser
report something like =A1=A5Problem connecting to database:
java.sql.SQLException: ERROR: parser: parse error at or near "4567891"=A1=
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(similar in jdbc and odbc), and the error =A1=A7unterminated string=A1=A8 h=
as
been reported when using psql.
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I=A1=A6ve found the problem exists since 7.1.x till 7.2.*.