Обсуждение: mysqlcompat - mysqlcompat: Add MySQL && and || operators.

Log Message:
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Add MySQL && and || operators.  Protect other stored procs to always use the pg_catalog || for concatentation

Modified Files:
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    mysqlcompat:
        aggregate.sql (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/mysqlcompat/mysqlcompat/aggregate.sql.diff?r1=1.1&r2=1.2)
        datetime.sql (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/mysqlcompat/mysqlcompat/datetime.sql.diff?r1=1.4&r2=1.5)
        mathematical.sql (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/mysqlcompat/mysqlcompat/mathematical.sql.diff?r1=1.1&r2=1.2)
        string.sql (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/mysqlcompat/mysqlcompat/string.sql.diff?r1=1.1&r2=1.2)

Added Files:
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    mysqlcompat:
        operators.sql (r1.1)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/mysqlcompat/mysqlcompat/operators.sql?rev=1.1&content-type=text/x-cvsweb-markup)