Version Packages

packages/cypher-codegen/CHANGELOG.md

@@ -1,5 +1,22 @@
 # @evryg/effect-cypher-codegen
 
+## 0.4.3
+
+### Patch Changes
+
+- [#95](https://github.com/evryg-org/effect-contrib/pull/95) [`2c84a48`](https://github.com/evryg-org/effect-contrib/commit/2c84a48c79ea89463ec9ecf621a7e30c01e6d9ca) Thanks @jbmusso! - Improve numeric type inference in the Cypher type checker.
+  - Recognize Neo4j scalar math functions. `log`, `log10`, `exp`, `sqrt`, the trigonometric
+    functions, `ceil`, `floor`, `round`, `e()`, `pi()`, `rand()` and friends now infer `Double`;
+    `sign` infers `Long`; and `abs` preserves its argument's numeric type. Previously any of these
+    threw `Unrecognized function`, failing codegen for queries that projected a bare math call such as
+    `RETURN log(x) AS weight`.
+  - Unify numeric operand types in arithmetic. Expressions previously took only the first operand's
+    type, so `Long * Double` (or `priceLong * 1.5`) inferred `Long` — emitting `Neo4jInt` and risking
+    a runtime decode failure on floats. Numeric arithmetic now unifies operands by the numeric join
+    (`Long ⊔ Double = Double`), a `Double` anywhere widens the result, and exponentiation (`^`) yields
+    `Double`. Numeric literals also carry their int/float distinction (`1.5`/`1e3` → `Double`). String
+    and list concatenation are unaffected.
+
 ## 0.4.2
 
 ### Patch Changes

packages/cypher-codegen/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@evryg/effect-cypher-codegen",
-  "version": "0.4.2",
+  "version": "0.4.3",
   "type": "module",
   "license": "MIT",
   "description": "Cypher type checker and code generator: parses .cypher files, infers types, and generates typed Effect modules",