feat: new array find operators

CHANGELOG.md

@@ -426,6 +426,13 @@ This change was required to simplify ORM internals and introduce new features.
 
 * issue with non-reliable `new Date(ISOString)` parsing ([#7796](https://github.com/typeorm/typeorm/pull/7796))
 
+* true JSON / JSONB support - manual `JSON.stringify` was removed,
+instead object handled by underlying driver. This opens ability to properly work with json/jsonb structures,
+but brings few breaking changes:
+
+  * `array: true` must be explicitly defined for array json/jsonb values
+  * strings being JSON-stringified must be manually escaped
+
 ### DEPRECATIONS
 
 * all CLI commands do not support `ormconfig` anymore. You must specify a file with data source instance instead.

docs/find-options.md

@@ -488,6 +488,54 @@ will execute following query:
 SELECT * FROM "post" WHERE "title" IS NULL
 ```
 
+-   `ArrayContains`
+
+```ts
+import { ArrayContains } from "typeorm"
+
+const loadedPosts = await dataSource.getRepository(Post).findBy({
+    categories: ArrayContains(["TypeScript"]),
+})
+```
+
+will execute following query:
+
+```sql
+SELECT * FROM "post" WHERE "categories" @> '{TypeScript}'
+```
+
+-   `ArrayContainedBy`
+
+```ts
+import { ArrayContainedBy } from "typeorm"
+
+const loadedPosts = await dataSource.getRepository(Post).findBy({
+    categories: ArrayContainedBy(["TypeScript"]),
+})
+```
+
+will execute following query:
+
+```sql
+SELECT * FROM "post" WHERE "categories" <@ '{TypeScript}'
+```
+
+-   `ArrayOverlap`
+
+```ts
+import { ArrayOverlap } from "typeorm"
+
+const loadedPosts = await dataSource.getRepository(Post).findBy({
+    categories: ArrayOverlap(["TypeScript"]),
+})
+```
+
+will execute following query:
+
+```sql
+SELECT * FROM "post" WHERE "categories" && '{TypeScript}'
+```
+
 -   `Raw`
 
 ```ts

src/driver/postgres/PostgresDriver.ts

@@ -622,7 +622,7 @@ export class PostgresDriver implements Driver {
                 columnMetadata.type,
             ) >= 0
         ) {
-            return JSON.stringify(value)
+            return value // JSON.stringify()
         } else if (columnMetadata.type === "hstore") {
             if (typeof value === "string") {
                 return value

src/find-options/FindOperatorType.ts

@@ -15,3 +15,6 @@ export type FindOperatorType =
     | "ilike"
     | "like"
     | "raw"
+    | "arrayContains"
+    | "arrayContainedBy"
+    | "arrayOverlap"

src/find-options/operator/ArrayContainedBy.ts

@@ -0,0 +1,11 @@
+import { FindOperator } from "../FindOperator"
+
+/**
+ * FindOptions Operator.
+ * Example: { someField: ArrayContainedBy([...]) }
+ */
+export function ArrayContainedBy<T>(
+    value: T[] | FindOperator<T>,
+): FindOperator<any> {
+    return new FindOperator("arrayContainedBy", value as any)
+}

src/find-options/operator/ArrayContains.ts

@@ -0,0 +1,11 @@
+import { FindOperator } from "../FindOperator"
+
+/**
+ * FindOptions Operator.
+ * Example: { someField: ArrayContains([...]) }
+ */
+export function ArrayContains<T>(
+    value: T[] | FindOperator<T>,
+): FindOperator<any> {
+    return new FindOperator("arrayContains", value as any)
+}

src/find-options/operator/ArrayOverlap.ts

@@ -0,0 +1,11 @@
+import { FindOperator } from "../FindOperator"
+
+/**
+ * FindOptions Operator.
+ * Example: { someField: ArrayOverlap([...]) }
+ */
+export function ArrayOverlap<T>(
+    value: T[] | FindOperator<T>,
+): FindOperator<any> {
+    return new FindOperator("arrayOverlap", value as any)
+}

src/query-builder/QueryBuilder.ts

@@ -993,6 +993,12 @@ export abstract class QueryBuilder<Entity> {
                 return `${condition.parameters[0]} < ${condition.parameters[1]}`
             case "lessThanOrEqual":
                 return `${condition.parameters[0]} <= ${condition.parameters[1]}`
+            case "arrayContains":
+                return `${condition.parameters[0]} @> ${condition.parameters[1]}`
+            case "arrayContainedBy":
+                return `${condition.parameters[0]} <@ ${condition.parameters[1]}`
+            case "arrayOverlap":
+                return `${condition.parameters[0]} && ${condition.parameters[1]}`
             case "moreThan":
                 return `${condition.parameters[0]} > ${condition.parameters[1]}`
             case "moreThanOrEqual":

src/query-builder/WhereClause.ts

@@ -13,6 +13,9 @@ type PredicateOperator =
     | "in"
     | "any"
     | "isNull"
+    | "arrayContains"
+    | "arrayContainedBy"
+    | "arrayOverlap"
 
 export interface WherePredicateOperator {
     operator: PredicateOperator

test/benchmark/bulk-save-case2/entity/Document.ts

@@ -16,7 +16,7 @@ export class Document {
     @Column("text")
     context: string
 
-    @Column({ type: "jsonb" })
+    @Column({ type: "jsonb", array: true })
     distributions: Distribution[]
 
     @Column({ type: "timestamp with time zone" })