2012-10-31 Notes on Release 3.3.0
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New algebra modules:
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* SymbolicTrajectoryAlgebra:
This algebra manages time-dependent strings and provides a pattern matching on such structures.
* OSM Algebra
The OSM Algebra provides import functions for Open Street Map data.
* Map Matching Algebra
This algebra provides methods to map moving points to an underlying network.
* Hadoop, HadoopParallel Algebra
These algebras provide mechanisms for parallel execution of queries on several computers.
* Distributed Algebra
This algebra is an alternative approach for using Secondo in parallel.
* Trie Algebra
The Trie algebra provides inverted files as an index structure for large documents.
* GroupBy Algebra
This algebra provides a hash based group by operation.
Optimizer Extension
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The optimizer now can handle queries with an arbitrary number of relations and predicates.
Main Memory Management
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Instead of assigning a fixed amount of main memory to each operator, Secondo's QueryProcessor now
distributes the available memory to all operators asking for it.
Query Construction Viewer
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This new viewer helps users to formulate queries.
Extensions of Algebras
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Algebra modules were extended by new types and operators, e.g., for searching for regular expressions
within texts.
Adaption to new Operating Systems
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Secondo Version 3.3.0 works with SuSe 12.2 and Ubuntu 12.04.