Great tool，I will try it later. thanks for sharing!
2013/1/31 Devaraj Das <[email protected]> > Congratulations, James. We will surely benefit from this tool. > > On Wed, Jan 30, 2013 at 1:04 PM, James Taylor <[email protected]> > wrote: > > We are pleased to announce the immediate availability of a new open > source > > project, Phoenix, a SQL layer over HBase that powers the HBase use cases > at > > Salesforce.com. We put the SQL back in the NoSQL: > > > > * Available on GitHub at https://github.com/forcedotcom/phoenix > > * Embedded JDBC driver implements the majority of java.sql interfaces, > > including the metadata APIs. > > * Built for low latency queries through parallelization, the use of > > native HBase APIs, coprocessors, and custom filters. > > * Allows columns to be modelled as a multi-part row key or key/value > > cells. > > * Full query support with predicate push down and optimal scan key > > formation. > > * DDL support: CREATE TABLE, DROP TABLE, and ALTER TABLE for > > adding/removing columns. > > * Versioned schema repository. Snapshot queries use the schema that > > was in place when data was written. > > * DML support: UPSERT VALUES for row-by-row insertion, UPSERT SELECT > > for mass data transfer between the same or different tables, and > > DELETE for deleting rows. > > * Limited transaction support through client-side batching. > > * Single table only - no joins yet and secondary indexes are a work in > > progress. > > * Follows ANSI SQL standards whenever possible > > * Requires HBase v 0.94.2 or above > > * BSD-like license > > * 100% Java > > > > Join our user groups: > > Phoenix HBase User: > > https://groups.google.com/forum/#!forum/phoenix-hbase-user > > Phoenix HBase Dev: > > https://groups.google.com/forum/#!forum/phoenix-hbase-dev > > and check out our roadmap: > > https://github.com/forcedotcom/phoenix/wiki#wiki-roadmap > > > > We welcome feedback and contributions from the community to Phoenix and > look > > forward to working together. > > > > Regards, > > > > James Taylor > > @JamesPlusPlus >
