Merge pull request #23 from nikomatsakis/release-2.0

release datafrog 2.0.0

Author: nikomatsakis

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "datafrog"
-version = "1.0.0"
+version = "2.0.0"
 authors = ["Frank McSherry <[email protected]>", "The Rust Project Developers", "Datafrog Developers"]
 license = "Apache-2.0/MIT"
 description = "Lightweight Datalog engine intended to be embedded in other Rust programs"

RELEASES.md

@@ -1,3 +1,16 @@
+# 2.0.0
+
+- Breaking changes:
+  - leapjoin now takes a tuple of leapers, and not a `&mut` slice:
+    - `from_leapjoin(&input, &mut [&mut foo.extend_with(...), ..], ..)` becomes
+      `from_leapjoin(&input, (foo.extend_with(...), ..), ..)`
+    - if there is only one leaper, no tuple is needed
+  - `Relation::from` now requires a vector, not an iterator; use
+    `Relation::from_iter` instead
+- Changed the API to permit using `Relation` and `Variable` more interchangeably,
+  and added a number of operations to construct relations directly, like `Relation::from_join`
+- Extended leapfrog triejoin with new operations (`PrefixFilter` and `ValueFilter`)
+
 # 1.0.0
 
 - Added leapfrog triejoin (#11).