Add some new constance
Add method to handle union operator.
Limited use of predicates in XPath return fields
Add event log for timed replication.
Add even log in replication.
Somehow the change went to the head rather than branch. So i rollback the change in head.
This commit is for branch. In this commit the correct ip and user name will be stored in access_log table in replication event. However, it only for Forcereplication. And the test isn't completed yet. This commit is only for future use.
checking in timing print statments
Add a new method to print out more effecient query.
Add new data structure and method to handle query terms which have same search value.
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