Re: [HACKERS] Changes in amcanreturn() interface to support multicolumn indexes

2014-06-26 Thread Tom Lane
Anastasia Lubennikova writes: > There is a question of support multicolumn index only scans for GIST. > gistcanreturn() can return true if fetch is implemented for all indexed > columns and false otherwise. > But that's not very good case for multicolumn indexes. > I think, it requires extend the

[HACKERS] Changes in amcanreturn() interface to support multicolumn indexes

2014-06-26 Thread Anastasia Lubennikova
Changes in amcanreturn() interface to support multicolumn indexes. Hi, hackers I work on GSoC project Support_for_Index-only_scans_for_GIST_GSoC_2014 There is a question of support multicolumn index only scans for GI