Hi,
I have some doubts related to ExecEvalExpr functions which is used to
executing the expression.
Here we are finding the subexpression recursively.
But I am not able to find it out that where exactly the comparison taking
place.
For eg.
relation A
id name age
relation B
name age status
if query is
select id , name , age , status from A , B where A.name = B.name and A.age
= B.age.
Then parser find this "and" condition and divide this into two expression.
But I am not getting in which function exactly these comparison between
tupleslot taking place.
--
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| Sandeep Satpal |
| M.Tech Student |
| Lab 212 KReSIT |
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TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
