Amazon Technologies, Inc.

Peter Zhivkov

James Christopher Sorenson

Amit Gupta

Somasundaram Perianayagam

Sharatkumar Nagesh Kuppahally

Vaibhav Jain

Nicholas Gordon

Ravi Math

Chase Kernan

Remi Paucher

Sagar Mundra

Shishir Agrawal

Ajay Kumar

Aman Gupta

Ankur Tyagi

Updates to projected data subsets may be ordered using conditional operations. When updates to a data set are received, a determination is made according to a schema for a projected subset of the data set as to whether the update is to be propagated to the projected subset of the data set. If the update is to be propagated, a comparison of a version identifier for the update may be made with a version identifier for the subset to determine whether performance of the update is consistent with an ordering of updates performed to the first data set. If the comparison indicates the performance of the update is consistent, then the update may be performed to the projected subset. If not, then the update may not be performed.

Ordering updates to secondary indexes using conditional operations

Offline building of a projected data subset may be performed. A request to create a data set that is a projected subset of data from a source data set may be received. A data store separate from the data store storing the source data set may store a copy of the source data set that is used to replicate items to the projected subset of data according to a schema for the projected data subset. Updates made to the source data set may also be replicated to the projected data subset according to the schema. Conflicts between replicated items and replicated updates to the projected data set may be resolved by comparing a version identifier for the replicated update and replicated item to determine what to store in the projected data subset.

Offline index builds for database tables

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Seattle, WA, United States of America

Peter Zhivkov