Re: [HACKERS] Question on adding new indexes to Postgresql

2003-09-25 Thread Christopher Kings-Lynne
Check contrib/rtreegist Chris Zhen Yang wrote: Thanks. Currently I am also referring to different implementations of an index to see the most suitable to implement. For an R+ tree ( a variant of R tree ), I have found an example implementation in C. Does anyone know of an R+ tree implementation

Re: [HACKERS] Question on adding new indexes to Postgresql

2003-09-25 Thread Tom Lane
Zhen Yang <[EMAIL PROTECTED]> writes: > Does anyone know of an R+ tree implementation done with GIST > (generalized search tree)? contrib/rtree_gist/ ought to be a starting point. regards, tom lane ---(end of broadcast)--- T

Re: [HACKERS] Question on adding new indexes to Postgresql

2003-09-25 Thread Zhen Yang
Thanks. Currently I am also referring to different implementations of an index to see the most suitable to implement. For an R+ tree ( a variant of R tree ), I have found an example implementation in C. Does anyone know of an R+ tree implementation done with GIST (generalized search tree)? Since a

Re: [HACKERS] Question on adding new indexes to Postgresql

2003-09-23 Thread Tom Lane
Zhen Yang <[EMAIL PROTECTED]> writes: > What are the C interface functions in Postgresql to add indexes? You will need to study the source code for the existing index types. There is not much documentation other than the sources for the index access method APIs. regards, t

[HACKERS] Question on adding new indexes to Postgresql

2003-09-23 Thread Zhen Yang
Hello, I am posting to ask for some help and suggestions. For a project I am doing in university, I need to add indexing mechanisms to the Postgresql database (R+ tree, bitmap indexes). Version of Postgresql is 7.3.3. I would like to ask how I can integrate the structures and algorithms for the i