I am going through the Executor code and come across the following terms quite often. Can someone tell me what do they mean (in a few (may be a couple of) sentences)?
1. Scan State 2. Plan State 3. Tuple Projection 4. EState 5. Qual 6. Expression They sound quite ambiguous in the source code, specially when some of them already have terms which have multiple meanings. Thanks for your time. -Vaibhav (*_*)
