Inventor · disambiguated record
Sangyong Hwang
Also filed as: HWANG SANGYONG
29 granted patents·2 pending applications·191 citations·filing 2002–2024
96Inventor score
Technology areasG06F
Top patents by PatentIndex Score
31 records- 0197US11461327B1Query plan caching for networked database systemsSNOWFLAKE INC·Filed 2022·Granted Oct 4, 2022·11 cites·27 claims
- 0295US11455290B1Streaming database change data from distributed storageAMAZON TECH INC·Filed 2020·Granted Sep 27, 2022·21 cites·20 claims
- 0395US11314740B1Responsive plan stabilitySNOWFLAKE INC·Filed 2021·Granted Apr 26, 2022·9 cites·27 claims
- 0492US11645281B1Caching query plans in database systemsSNOWFLAKE INC·Filed 2022·Granted May 9, 2023·2 cites·20 claims
- 0592US11544263B2Dynamic query execution using estimated execution timeSNOWFLAKE INC·Filed 2022·Granted Jan 3, 2023·3 cites·30 claims
- 0691US11860869B1Performing queries to a consistent view of a data set across query engine typesAMAZON TECH INC·Filed 2019·Granted Jan 2, 2024·8 cites·20 claims
- 0791US9361340B2Processing database queries using format conversionSAP SE·Filed 2014·Granted Jun 7, 2016·10 cites·16 claims
- 0890US12026160B2Query plan cache in database systemsSNOWFLAKE INC·Filed 2023·Granted Jul 2, 2024·1 cites·18 claims
- 0990US11455305B1Selecting alternate portions of a query plan for processing partial results generated separate from a query engineAMAZON TECH INC·Filed 2019·Granted Sep 27, 2022·6 cites·20 claims
- 1089US9892163B2Optimal operator placement for distributed query processingKIM KI HONG·Filed 2014·Granted Feb 13, 2018·13 cites·20 claims
- 1188US11886439B1Asynchronous change data capture for direct external transmissionAMAZON TECH INC·Filed 2019·Granted Jan 30, 2024·6 cites·20 claims
- 1288US11687531B2Estimated execution time for query executionSNOWFLAKE INC·Filed 2022·Granted Jun 27, 2023·1 cites·30 claims
- 1388US9336262B2Accelerated transactions with precommit-time early lock releaseLEE JUCHANG·Filed 2010·Granted May 10, 2016·13 cites·11 claims
- 1488US7293028B2Cache-conscious concurrency control scheme for database systemsSAP AG·Filed 2002·Granted Nov 6, 2007·59 cites·14 claims
- 1585US12321350B1Query block boundary identificationSNOWFLAKE INC·Filed 2023·Granted Jun 3, 2025·2 cites·20 claims
- 1684US8880510B2Unique value calculation in partitioned tablesFRICKE LARS·Filed 2011·Granted Nov 4, 2014·8 cites·19 claims
- 1783US11893016B1Secure predicate derivation of queries using metadataSNOWFLAKE INC·Filed 2022·Granted Feb 6, 2024·1 cites·30 claims
- 1883US9454560B2Cache-conscious concurrency control scheme for database systemsCHA SANG K·Filed 2007·Granted Sep 27, 2016·14 cites·33 claims
- 1982US12222944B2Processing database queries using format conversionSAP SE·Filed 2023·Granted Feb 11, 2025·0 cites·19 claims
- 2079US11176132B2Processing database queries using format conversionSAP SE·Filed 2018·Granted Nov 16, 2021·1 cites·12 claims
- 2177US12475125B2Partition granular selectivity estimation for predicatesSNOWFLAKE INC·Filed 2024·Granted Nov 18, 2025·0 cites·21 claims
- 2275US11061898B2Uncertainty-aware selection of query execution planSAP SE·Filed 2016·Granted Jul 13, 2021·2 cites·21 claims
- 2374US12007994B1Partition granular selectivity estimation for predicatesSNOWFLAKE INC·Filed 2023·Granted Jun 11, 2024·0 cites·21 claims
- 2474US11755575B2Processing database queries using format conversionSAP SE·Filed 2021·Granted Sep 12, 2023·0 cites·19 claims
- 2574US2024338367A1Join eliminationSNOWFLAKE INC·Filed 2024·Application pending·0 cites
- 2667US12468702B2Secure predicate derivation of queries using metadataSNOWFLAKE INC·Filed 2023·Granted Nov 11, 2025·0 cites·21 claims
- 2767US12045236B2Join eliminationSNOWFLAKE INC·Filed 2022·Granted Jul 23, 2024·0 cites·12 claims
- 2859US10127278B2Processing database queries using format conversionSAP SE·Filed 2016·Granted Nov 13, 2018·0 cites·19 claims
- 2954US9697273B2Unique value calculation in partitioned tableFRICKE LARS·Filed 2014·Granted Jul 4, 2017·0 cites·18 claims
- 3053US12488001B2Rule based hint applicationSNOWFLAKE INC·Filed 2023·Granted Dec 2, 2025·0 cites·26 claims
- 3140US2018060389A1Query optimization over distributed heterogeneous execution enginesSAP SE·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →