improve CreateCollectionRequest comment in milvus.proto (#7590)

Signed-off-by: NGitea <zizhao.chen@zilliz.com>

internal/proto/milvus.proto

@@ -49,13 +49,20 @@ service MilvusService {
   rpc GetMetrics(GetMetricsRequest) returns (GetMetricsResponse) {}
 }
 
+/**
+* Create collection in milvus 
+*/
 message CreateCollectionRequest {
-  common.MsgBase base = 1; // must
+  // Not useful for now
+  common.MsgBase base = 1;
+  // Not useful for now
   string db_name = 2;
-  string collection_name = 3; // must
-  // `schema` is the serialized `schema.CollectionSchema`
-  bytes schema = 4; // must
-  int32 shards_num = 5; // must. Once set, no modification is allowed
+  // The unique collection name in milvus.(Required)
+  string collection_name = 3; 
+  // The serialized `schema.CollectionSchema`(Required)
+  bytes schema = 4; 
+  // Once set, no modification is allowed (Optional)
+  int32 shards_num = 5;
 }
 
 message DropCollectionRequest {

internal/proto/milvuspb/milvus.pb.go

@@ -79,12 +79,18 @@ func (PlaceholderType) EnumDescriptor() ([]byte, []int) {
 	return fileDescriptor_02345ba45cc0e303, []int{1}
 }
 
+//*
+// Create collection in milvus
 type CreateCollectionRequest struct {
-	Base           *commonpb.MsgBase `protobuf:"bytes,1,opt,name=base,proto3" json:"base,omitempty"`
-	DbName         string            `protobuf:"bytes,2,opt,name=db_name,json=dbName,proto3" json:"db_name,omitempty"`
-	CollectionName string            `protobuf:"bytes,3,opt,name=collection_name,json=collectionName,proto3" json:"collection_name,omitempty"`
-	// `schema` is the serialized `schema.CollectionSchema`
-	Schema               []byte   `protobuf:"bytes,4,opt,name=schema,proto3" json:"schema,omitempty"`
+	// Not useful for now
+	Base *commonpb.MsgBase `protobuf:"bytes,1,opt,name=base,proto3" json:"base,omitempty"`
+	// Not useful for now
+	DbName string `protobuf:"bytes,2,opt,name=db_name,json=dbName,proto3" json:"db_name,omitempty"`
+	// The unique collection name in milvus.(Required)
+	CollectionName string `protobuf:"bytes,3,opt,name=collection_name,json=collectionName,proto3" json:"collection_name,omitempty"`
+	// The serialized `schema.CollectionSchema`(Required)
+	Schema []byte `protobuf:"bytes,4,opt,name=schema,proto3" json:"schema,omitempty"`
+	// Once set, no modification is allowed (Optional)
 	ShardsNum            int32    `protobuf:"varint,5,opt,name=shards_num,json=shardsNum,proto3" json:"shards_num,omitempty"`
 	XXX_NoUnkeyedLiteral struct{} `json:"-"`
 	XXX_unrecognized     []byte   `json:"-"`