Re: Doubt in parser

Dhanaraj wrote:
> hi
> 
> currently i looking at the postgres src code. I saw the scanner and 
> parser implemetations at two different places (src/backend/parser/  and  
> /src/bakend/bootstrp). Can anybody tell me the purpose of having two 
> phases?? or will this help to parse the queries at different levels?

The bootstrap parser is using only in bootstrap mode, which is when the
template1 database is initially created.  It has a completely different
syntax than the main parser.

If what you are looking for is to implement a new command or modify an
existing one, ignore the bootstrap parser.

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.