Tasneem Memon <[EMAIL PROTECTED]> writes: > Hi, I am Tasneem Memon doing MS Computer Science. I am working on my thesis= > these days, for which I have defined some operators theoritically as well = > as their algorithms, and intend to implement them in PostgreSQL. These oper= > ators(NEAR, NOT NEAR) are binary and work with NUMBER and DATE data types. = > Now I need to implement support for them in the parser. But I haven't worke= > d on the optimization of the operators. And also I am new to database syste= > ms programming, I am quite confused about what to do now and if I am going = > the right direction!Please Guide me what should I do next.With best regards=
It sounds like you could use LIKE and its underlying operators/functions as a template to follow. regards, tom lane ---------------------------(end of broadcast)--------------------------- 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