Finally there is a new version of patch (in attachments). It provides multicolumn index-only scan for GiST indexes.
- Memory leak is fixed. - little code cleanup - example of performance test in attachmens - function OIDs have debugging values (1111*) just to avoid merge conflicts while testing patch Wiki page of the project is https://wiki.postgresql.org/wiki/Support_for_Index-only_scans_for_GIST_GSoC_2014 Waiting for feedback. -- Best regards, Lubennikova Anastasia
indexonlyscan_gist_2.0.patch
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test_performance.sql
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indexonlyscan_gist_docs.patch
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