Check substring if contains not array

packages/backend-core/src/db/lucene.ts

@@ -309,7 +309,7 @@ export class QueryBuilder<T> {
         return null
       }
       if (!Array.isArray(value)) {
-        return `${key}:${value}`
+        return `${key}:/${value?.toLowerCase()}/`
       }
       let statement = `${builder.preprocess(value[0], { escape: true })}`
       for (let i = 1; i < value.length; i++) {

packages/shared-core/src/filters.ts

@@ -22,6 +22,7 @@ export const getValidOperatorsForType = (
     Op.Empty,
     Op.NotEmpty,
     Op.In,
+    Op.Contains,
   ]
   const numOps = [
     Op.Equals,