add <, >, and numeric = operators to pathquery language
Need to have less than, greater than, and numeric equals operator support in the
pathquery language so that we can do spatial and othe rimportant queries.
#1 Updated by Jivka Bojilova about 20 years ago
Included new terms in pathquery.dtd for searchmode:
equals (former "matches-exactly")
added support for them in QuerySpecification. Tested in Oracle.
For = and != operators: ='1' and =1 (!='1' and !=1) work in the same way for
numeric operands thus ='operand' is used only.
For >, >=, <, <= check for numeric operand is added like:
if (operand is Number)
else //character operand