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No. (Percona CEO and article author here) - Percona does not own Fractal Trees patents. Patents belong to MIT and Tokutek licensed those patents from MIT, P

No. (Percona CEO and article author here) - Percona does not own Fractal Trees patents. Patents belong to MIT and Tokutek licensed those patents from MIT, Percona took over this license.

mananaysiempre 4y ago
Thank you! I even remembered reading something to that effect in the original Tokutek PATENTS files, but went on Google Patents to double-check and (it seems) hit the wrong patent. For reference, those are: - “Disk-resident streaming dictionary” (2007) [1] seems to be the main one for both the COLA (if it is patentable at all—the base datastructure, fractional cascading, and deamortization were all in the literature a decade or more before, though impressively obscure from where I’m standing) and the CO B-tree; owned by MIT and (according to Google) exclusively licensed to Tokutek and afterwards Percona; - Same (2012) [2], a “continuation”(?), allowed to lapse and expired; - “High-performance streaming dictionary” (2010) [3], the one I found during the double-check, but hell if I know what it actually discloses—using a search tree to implement a database? a specific database implementation? WTF? definitely not anything cache-oblivious specifically; (according to Google) owned by Tokutek and then Percona. [1] https://patents.google.com/patent/US8185551B2 https://patents.google.com/patent/US8185551B2 ; https://fees.uspto.gov/MaintenanceFees/fees/details?patentNumber=8,185,551&applicationNumber=11%2F760,379 https://fees.uspto.gov/MaintenanceFees/fees/details?patentNu... [2] https://patents.google.com/patent/US8489638B2 https://patents.google.com/patent/US8489638B2 ; https://fees.uspto.gov/MaintenanceFees/fees/details?patentNumber=8,489,638&applicationNumber=13%2F476,826 https://fees.uspto.gov/MaintenanceFees/fees/details?patentNu... [3] https://patents.google.com/patent/US8996563B2 https://patents.google.com/patent/US8996563B2 ; https://fees.uspto.gov/MaintenanceFees/fees/details?patentNumber=8,996,563&applicationNumber=12%2F755,391 https://fees.uspto.gov/MaintenanceFees/fees/details?patentNu...
- PeterZaitsev 4y ago
  Thanks for correcting there are other patents indeed. I frankly forgot about those as in the end Tokutek technology unfortunately did not get much traction and we in the end depreciated it and focused on RocksDB/MyRocks instead which targets similar end user advantages

No. (Percona CEO and article author here) - Percona does not own Fractal Trees patents. Patents belong to MIT and Tokutek licensed those patents from MIT, Percona took over this license.

mananaysiempre 4y ago

Thank you! I even remembered reading something to that effect in the original Tokutek PATENTS files, but went on Google Patents to double-check and (it seems) hit the wrong patent. For reference, those are: - “Disk-resident streaming dictionary” (2007) [1] seems to be the main one for both the COLA (if it is patentable at all—the base datastructure, fractional cascading, and deamortization were all in the literature a decade or more before, though impressively obscure from where I’m standing) and the CO B-tree; owned by MIT and (according to Google) exclusively licensed to Tokutek and afterwards Percona; - Same (2012) [2], a “continuation”(?), allowed to lapse and expired; - “High-performance streaming dictionary” (2010) [3], the one I found during the double-check, but hell if I know what it actually discloses—using a search tree to implement a database? a specific database implementation? WTF? definitely not anything cache-oblivious specifically; (according to Google) owned by Tokutek and then Percona. [1] https://patents.google.com/patent/US8185551B2 https://patents.google.com/patent/US8185551B2 ; https://fees.uspto.gov/MaintenanceFees/fees/details?patentNumber=8,185,551&applicationNumber=11%2F760,379 https://fees.uspto.gov/MaintenanceFees/fees/details?patentNu... [2] https://patents.google.com/patent/US8489638B2 https://patents.google.com/patent/US8489638B2 ; https://fees.uspto.gov/MaintenanceFees/fees/details?patentNumber=8,489,638&applicationNumber=13%2F476,826 https://fees.uspto.gov/MaintenanceFees/fees/details?patentNu... [3] https://patents.google.com/patent/US8996563B2 https://patents.google.com/patent/US8996563B2 ; https://fees.uspto.gov/MaintenanceFees/fees/details?patentNumber=8,996,563&applicationNumber=12%2F755,391 https://fees.uspto.gov/MaintenanceFees/fees/details?patentNu...

PeterZaitsev 4y ago
Thanks for correcting there are other patents indeed. I frankly forgot about those as in the end Tokutek technology unfortunately did not get much traction and we in the end depreciated it and focused on RocksDB/MyRocks instead which targets similar end user advantages