Add $eq to Filter

Author: AJCStriker

package.json

@@ -1,6 +1,6 @@
 {
   "name": "strontium",
-  "version": "2.7.7",
+  "version": "2.7.8",
   "description": "Strontium is a TypeScript toolkit for High Performance API servers built for Production not Projects.",
   "main": "lib/src/index.js",
   "types": "lib/src/index.d.ts",

src/query/abstract/Filter.ts

@@ -4,6 +4,8 @@ export type FieldFilter<P extends keyof T, T> =
     | {
           $in?: Array<T[P]>
           $nin?: Array<T[P]>
+          $eq?: T[P]
+          // TODO: Review if the null type on $neq is necessary
           $neq?: T[P] | null
           $gt?: T[P]
           $gte?: T[P]

src/query/drivers/sql/SQLFilterCompiler.ts

@@ -76,6 +76,8 @@ export const compileSQLFilter: FilterCompiler<[string, Array<any>]> = (
             queries.push(["?? < ?", [field, subquery.$lt]])
         } else if (subquery.$lte !== undefined) {
             queries.push(["?? <= ?", [field, subquery.$lte]])
+        } else if (subquery.$eq !== undefined) {
+            queries.push(["?? = ?", [field, subquery.$eq]])
         } else {
             queries.push(["?? = ?", [field, subquery]])
         }