diff --git a/sqlx-core/src/postgres/types/array.rs b/sqlx-core/src/postgres/types/array.rs
index 9dedfa03..fa7aabc2 100644
--- a/sqlx-core/src/postgres/types/array.rs
+++ b/sqlx-core/src/postgres/types/array.rs
@@ -80,7 +80,7 @@ where
     Self: Type<Postgres>,
 {
     fn decode(value: PgValueRef<'r>) -> Result<Self, BoxDynError> {
-        let element_type_info = T::type_info();
+        let element_type_info;
         let format = value.format();
 
         match format {
@@ -107,7 +107,10 @@ where
                 let _flags = buf.get_i32();
 
                 // the OID of the element
-                let _element_type = buf.get_u32();
+                let element_type_oid = buf.get_u32();
+                element_type_info = PgTypeInfo::try_from_oid(element_type_oid).unwrap_or_else(|| {
+                    PgTypeInfo(PgType::DeclareWithOid(element_type_oid))
+                });
 
                 // length of the array axis
                 let len = buf.get_i32();
@@ -133,6 +136,9 @@ where
             }
 
             PgValueFormat::Text => {
+                // no type is provided from the database for the element
+                element_type_info = T::type_info();
+
                 let s = value.as_str()?;
 
                 // https://github.com/postgres/postgres/blob/a995b371ae29de2d38c4b7881cf414b1560e9746/src/backend/utils/adt/arrayfuncs.c#L718
diff --git a/sqlx-core/src/postgres/types/json.rs b/sqlx-core/src/postgres/types/json.rs
index 64cd884c..d64fb273 100644
--- a/sqlx-core/src/postgres/types/json.rs
+++ b/sqlx-core/src/postgres/types/json.rs
@@ -37,6 +37,10 @@ impl<T> Type<Postgres> for Vec<Json<T>> {
     fn type_info() -> PgTypeInfo {
         <[Json<T>] as Type<Postgres>>::type_info()
     }
+
+    fn compatible(ty: &PgTypeInfo) -> bool {
+        <[Json<T>] as Type<Postgres>>::compatible(ty)
+    }
 }
 
 impl<'q, T> Encode<'q, Postgres> for Json<T>
diff --git a/tests/postgres/types.rs b/tests/postgres/types.rs
index da1dc80b..fe3f8e65 100644
--- a/tests/postgres/types.rs
+++ b/tests/postgres/types.rs
@@ -298,6 +298,12 @@ mod json {
         "'[\"Hello\", \"World!\"]'::json" == json!(["Hello", "World!"])
     ));
 
+    test_type!(json_array<Vec<JsonValue>>(
+        Postgres,
+        "SELECT ({0}::jsonb[] is not distinct from $1::jsonb[])::int4, {0} as _2, $2 as _3",
+        "array['\"😎\"'::json, '\"🙋‍♀️\"'::json]::json[]" == vec![json!("😎"), json!("🙋‍♀️")],
+    ));
+
     test_type!(jsonb<JsonValue>(
         Postgres,
         "'\"Hello, World\"'::jsonb" == json!("Hello, World"),
@@ -306,6 +312,11 @@ mod json {
         "'[\"Hello\", \"World!\"]'::jsonb" == json!(["Hello", "World!"])
     ));
 
+    test_type!(jsonb_array<Vec<JsonValue>>(
+        Postgres,
+        "array['\"😎\"'::jsonb, '\"🙋‍♀️\"'::jsonb]::jsonb[]" == vec![json!("😎"), json!("🙋‍♀️")],
+    ));
+
     #[derive(serde::Deserialize, serde::Serialize, Debug, PartialEq)]
     struct Friend {
         name: String,