[Bug]: Create AUTOINDEX on scalar field successfully

[ThreadDao]

Is there an existing issue for this?

• [X] I have searched the existing issues

Current Behavior

• image: master-20240408-7b400252-amd64
• go-sdk: master

The AUTOINDEX creation on the scalar field was successful. The configured AUTOINDEX index is HNSW, and an error is expected to be returned.

func TestCreateAutoIndexScalarFields(t *testing.T) {
    ctx := createContext(t, time.Second*common.DefaultTimeout)
    //connect
    mc := createMilvusClient(ctx, t)

    // create collection with all datatype
    cp := CollectionParams{CollectionFieldsType: AllFields, AutoID: false, EnableDynamicField: true,
        ShardsNum: common.DefaultShards, Dim: common.DefaultDim}
    collName := createCollection(ctx, t, mc, cp)

    // insert
    dp := DataParams{CollectionName: collName, PartitionName: "", CollectionFieldsType: AllFields,
        start: 0, nb: common.DefaultNb, dim: common.DefaultDim, EnableDynamicField: true, WithRows: false}
    _, _ = insertData(ctx, t, mc, dp)
    mc.Flush(ctx, collName, false)

    // create index for all vector fields
    indexAuto, _ := entity.NewIndexAUTOINDEX(entity.L2)
    coll, _ := mc.DescribeCollection(ctx, collName)
    for _, field := range coll.Schema.Fields {
        if supportScalarIndexFieldType(field.DataType) {
            log.Println(field.Name, field.DataType)
            err := mc.CreateIndex(ctx, collName, field.Name, indexAuto, false, client.WithIndexName(field.Name))
            common.CheckErr(t, err, false, "HNSW only support float vector data type")
        }
    }
}

2024/04/09 10:35:50 index_test.go:661: int64 int64
2024/04/09 10:35:50 milvus_client.go:14: (ApiRequest): func [CreateIndex], args: [context.Background.WithDeadline(2024-04-09 10:37:47.844614217 +0800 CST m=+120.003653175 [1m56.875537048s]) zUDv int64 false 0xc01c900440 [0xa6f780]]
2024/04/09 10:35:52 milvus_client.go:21: (ApiResponse): func [CreateIndex], results: []
2024/04/09 10:35:52 milvus_client.go:14: (ApiRequest): func [DescribeIndex], args: [context.Background.WithDeadline(2024-04-09 10:37:47.844614217 +0800 CST m=+120.003653175 [1m55.102393824s]) zUDv int64 []]
2024/04/09 10:35:52 milvus_client.go:21: (ApiResponse): func [DescribeIndex], results: [[{{AUTOINDEX int64} map[index_type:AUTOINDEX metric_type:L2 params:{}]}]]

Expected Behavior

No response

Steps To Reproduce

No response

Environment

No response

Anything else?

No response

[ThreadDao]

/assign @congqixia

[ThreadDao]

birdwatcher shows that the actual index is: inverted

Milvus(zong-go-master-2) > show index --collection 449162955906704142
*************2.1.x***************
*************2.2.x***************
==================================================================
Index ID: 449162955906704177    Index Name: int64   CollectionID: 449162955906704142    FieldID: 100
Create Time: 2024-04-19 12:09:26.831 +0800  Deleted: false
Index Type: INVERTED    Metric Type: L2
Index Params: {}
metric_type:L2index_type:INVERTED==================================================================
==================================================================
Index ID: 449162955906704194    Index Name: bool    CollectionID: 449162955906704142    FieldID: 101
Create Time: 2024-04-19 12:09:28.832 +0800  Deleted: false
Index Type: INVERTED    Metric Type: L2
Index Params: {}
metric_type:L2index_type:INVERTED==================================================================
==================================================================
Index ID: 449162955906704211    Index Name: int8    CollectionID: 449162955906704142    FieldID: 102
Create Time: 2024-04-19 12:09:30.832 +0800  Deleted: false
Index Type: INVERTED    Metric Type: L2
Index Params: {}
index_type:INVERTEDmetric_type:L2==================================================================
==================================================================
Index ID: 449162955906704228    Index Name: int16   CollectionID: 449162955906704142    FieldID: 103
Create Time: 2024-04-19 12:09:32.782 +0800  Deleted: false
Index Type: INVERTED    Metric Type: L2
Index Params: {}
metric_type:L2index_type:INVERTED==================================================================
==================================================================
Index ID: 449162955906704245    Index Name: int32   CollectionID: 449162955906704142    FieldID: 104
Create Time: 2024-04-19 12:09:34.781 +0800  Deleted: false
Index Type: INVERTED    Metric Type: L2
Index Params: {}
index_type:INVERTEDmetric_type:L2==================================================================
==================================================================
Index ID: 449162955906704262    Index Name: float   CollectionID: 449162955906704142    FieldID: 105
Create Time: 2024-04-19 12:09:36.882 +0800  Deleted: false
Index Type: INVERTED    Metric Type: L2
Index Params: {}
index_type:INVERTEDmetric_type:L2==================================================================
==================================================================
Index ID: 449162955906704279    Index Name: double  CollectionID: 449162955906704142    FieldID: 106
Create Time: 2024-04-19 12:09:38.782 +0800  Deleted: false
Index Type: INVERTED    Metric Type: L2
Index Params: {}
index_type:INVERTEDmetric_type:L2==================================================================
==================================================================
Index ID: 449162955906704297    Index Name: varchar CollectionID: 449162955906704142    FieldID: 107
Create Time: 2024-04-19 12:09:40.782 +0800  Deleted: false
Index Type: INVERTED    Metric Type: L2
Index Params: {}
index_type:INVERTEDmetric_type:L2==================================================================