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2007-11-10Initial import of cstore-0.2, a "column store" relational database,agc1-0/+8
into the Packages Collection. This package is meant to support data warehousing in a much more efficient manner than traditional RDBMSs. C-Store is a read-optimized relational DBMS that contrasts sharply with most current systems, which are write-optimized. Among the many differences in its design are: + storage of data by column rather than by row, + careful coding and packing of objects into storage including main memory during query processing, + storing an overlapping collection of column-oriented projections, rather than the current fare of tables and indexes, + a non-traditional implementation of transactions which includes high availability and snapshot isolation for read-only transactions, + and the extensive use of bitmap indexes to complement B-tree structures. Please note that the storage required for this package could be viewed as being quite extreme - the standard build and data occupies in excess of 20 GB, and that is all installed into ${PREFIX} at installation time.