getOptimalPhysicalPlan has been implemeted for Scan and Root logical
Operator. --JAN.14, 2014 by Li Wang
fixed bug in the getOptimalPhysicalPlan in Scan and root
before debug in the clusters
add print function to BlockStreamBase for debuging.
Fixed a bug in LogcialQueryPlan::getOptimalPhysicalPlan()
add getNumberOfBlock() and destory() methods.
add print() and getResultSet virtual method()
convert "getAttribute(unsigned index)const" into "getAttribute(unsigned
offset)const;"
add print() method
Fixed a bug caused by the default construct of Attribute class.
add ResultSet data structure which is used to hold the result data.
query optimization
Before import codes written by zhangxinzhou
1
1
sql parser.
Before converting operator::assign(const void* , void*) into
operator::assign(const void*,const void*);
refined data_type.
Fixed bugs in ProjectionDescirptor caused by the absence of =opearte of
Attribute class.
fixed a bug
refined the codes