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Releases: RoanH/gMark

v1.3 Operations & RPQ

29 Sep 23:17
v1.3
687b76f
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This release focusses on making all the components that make up a query language more explicit and identifiable by introducing operations. This is an important step towards bridging the gap between the query language theory and evaluation in a database. A short report was also written to explain the general concepts and terminology in more detail: Graph Database & Query Evaluation Terminology.

Notable changes:

  • Fully implement support for RPQ as a query language complete with its own API:
    • Support for programmatically constructing RPQs.
    • Support for parsing RPQs from text.
    • Support for random RPQ generation.
    • Support for RPQ to SQL conversion.
  • Implement abstract syntax trees (AST), which CPQ and RPQ can be converted to (and constructed from).
  • Prettier SQL output (properly indented now and no longer a single line).
  • Add formal as an output format for the formal logic form of queries.
  • Support xml as an output format for individually exporting queries as XML.
  • Update the readme to better match the current state of the repository.
  • Make it clear in the GUI that RPQ workloads are not yet supported.
  • Build & project setup improvements.

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Requires Java 17 or higher

v1.2 CPQ Cores

04 Jul 20:14
v1.2
0aaa010
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This release again focuses on introducing a number of CPQ related utilities, most notably CPQ core computation. These features were added for use in my Master's Thesis project.

Notable changes:

  • CPQ Core computation.
  • CPQ Homomorphism testing.
  • The Graph class was renamed to UniqueGraph.
  • Added SimpleGraph which is more performant than UniqueGraph but also limited to unlabelled undirected graphs without parallel edges.
  • Tree implementation for tree graphs.
  • Various utility extensions to the existing CPQ and QueryGraphCPQ APIs.
    • Getting the diameter of a CPQ.
    • Checking if a CPQ is a loop.
    • More CPQ construction subroutines.
    • Option to reverse a query graph.
    • Support for parsing text form CPQs.
  • GraphPanel now supports undirected graphs.
  • GraphPanel factory methods to quickly show CPQs/query graphs/unique graphs.
  • Tree decomposition algorithm implementation for graphs of treewidth at most 2.
  • Support to copy unique graphs, rename nodes in them and restore deleted edges.
  • Maximal matching algorithm implementation
  • Cartesian product algorithm implementation
  • All subsets algorithm implementation.
  • Update to Java 17 and minor code improvements.

v1.1 CPQ Utilties

25 Jun 23:42
v1.1
9c7a03f
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This release includes various utilities for working with CPQs. Notably, random CPQ generation and CPQ query graph generation. Most of these features were introduced for the CPQ Keys project: https://cpqkeys.roanh.dev/

v1.0 Initial Release

18 Mar 00:54
v1.0
30eff57
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The initial public release of the gMark rewrite. This version only has support for CPQ based queries but does provide a graphical interface. There is no support for graph generation or RPQ based queries in this version.