Hi
I have a query where a filter would always be negative, how many steps, out these:
- parsing and syntax check
- semantic analysis
- transformation process (query rewrite based on system or user-defined rules)
- query optimization
- execution
would be performed or not? Also, where in the documentation can I found out which of the above phases would be performed?
For example, for a query such as the following:
select x,y from test1 where 1=0;
Thanks
P
