openCypher M19 release
Hannes Voigt
Hello community!
We are pleased to announce the next milestone release, 1.0.0-M19, of openCypher, which includes:
General
Upgrade of log4j version to 2.17.0
Upgrade of xmlgraphics-commons version to 2.6
Minor dependencies fixes
CIPs
Accept CIP2021-07-07 Grouping key and aggregation expressions
Adjustment of CIP2015-05-13 EXISTS to grammar refactorings
TCK, TCK API, and TCK tools
Update TCK scenarios to reflect CIP2021-07-07 Grouping key and aggregation expressions, primarily in TCK features Return6, ReturnOrderBy6, With6, and WithOrderBy4
Add TCK scenarios to reflect CIP2021-08-10 Operator precedence
Remove deprecated syntax from TCK scenarios, specifically
Octal number syntax starting with 0 instead of 0o
No coercion of lists to boolean
Add scenarios to TCK feature WithSkipLimit3
Update scenario in TCK feature List6 to avoid introducing variable in pattern predicate
Fix hashcode bug in TCK API class CypherLists
Speed up of TCK integrity tests
Grammar and grammar tools
Add antlr parser demo
Grammar refactorings
Add <PatternPredicate> ::= <RelationshipsPattern> for clearer distinction of <RelationshipsPattern> appearing as an <Atom>
Add separate production of s for better referencing and separation of quantifiers in the grammar
Add functionality to the grammar toolkit, e.g. praising of ISO WG3 BNF
Fix bug in grammar non-terminal <UnaryAddSubtractExpression>
Remove use of a deprecated antlr class
You will find download links to the artifacts from our webpage at https://www.opencypher.org/resources.
If you are using Maven for dependency management, the TCK and grammar also exist as modules on Maven Central, including the TCK API and other tools.
Best
Hannes