[HACKERS] Postgres SQL Parser

[Uma Krishnan]

Hello I'm trying to implement a new SortMerge algorithm, and see how it 
compares with the current algorithm. In doing so, rather than using select, I'd 
like to introduce a new verb so that Select is not modified. 
   
  I looked at the source code, but could find the place where Postgres SQL 
grammer is defined. 
   
  Please help.
   
  Thanks

Re: [HACKERS] Postgres SQL Parser

[Bruce Momjian]

Uma Krishnan wrote:
 Hello I'm trying to implement a new SortMerge algorithm, and see how
 it compares with the current algorithm. In doing so, rather than using
 select, I'd like to introduce a new verb so that Select is not modified.
 
   I looked at the source code, but could find the place where Postgres
   SQL grammer is defined.

src/parser/gram.y

I recommend you read the developer's FAQ.


--
  Bruce Momjian  [EMAIL PROTECTED]  http://momjian.us
  EnterpriseDB   http://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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Re: [HACKERS] Postgres SQL Parser

[Andrew Dunstan]

Uma Krishnan wrote:
 Hello I'm trying to implement a new SortMerge algorithm, and see how it
 compares with the current algorithm. In doing so, rather than using
 select, I'd like to introduce a new verb so that Select is not modified.

   I looked at the source code, but could find the place where Postgres SQL
 grammer is defined.


src/backend/parser/gram.y

If you intend this work to be incorporated into PostgreSQL you should
discuss it first on this list, before you cut a single line of code - the
bar for new verbs is likely to be set fairly high.

cheers

andrew



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