v0.2.0
Language
- Set literals
- Composite and reference values in Rule head
- Complete Rule definitions containing variables
- Builtins for regular expressions, string concatenation, casting to numbers
Compiler
- Improved error reporting in parser and compiler
Evaluation
- Iteration over base and virtual documents (in the same reference)
- Query tracing and explanation support
Storage
- Pluggable data storage support
Documentation
- GoDoc strings with examples
- REST API specification
- Concise language reference
Performance
- Per-query cache of virtual documents in topdown
And many other small improvements and fixes.