[HACKERS] Modyfication Sort Merge Join Alghoritm

Hi users. I want to sure, that is no this implementation in Postgresql: For Sorte Merge Join Alghoritm:  If the large input arrives sorted, g-join joins its pages with the buffer pool contents by strictly increasing join key values and the join output is also strictly sorted.   Is it difficult to i

[HACKERS] Adding Zigzag Merge Join to Index Nested Loops Join

Hi. I want add Zigzag Merge join to Index Nested Loops Join alghoritm. http://www.cs.berkeley.edu/~fox/summaries/database/query_eval_5-8.html Which files are responsible for Index nested loops join ? (not simple nested loops join which has double foreach in nodeNestloop.c) nodeIndexscan.c? nodeI

[HACKERS] Error compiling Postgresql source code in Visual Studio 2010

Hi. 1.I downloaded source code PostgreSql version 9.2.4. from  http://www.postgresql.org/ftp/source/ 2.Next, I downloaded ActivePerl and installed it. Next, I used Visual Studio x64 Win64 command prompt 2010. Later I used visual studio command prompt for get into path source code : "C:\Postgresq

[HACKERS] Adding new joining alghoritm to postgresql

Hi.I'm a little confused. 1.I have source code 9.2.4. version fromhttp://www.postgresql.org/ftp/source/ 2.I want to add new alghoritm to index nested loops join, merge join and hash join. I have Executor catalog in src catalag containing nodeHash.c, nodeHasjoin.c, nodeMergejoin and nodeNestloop