diff --git a/internal/datacoord/server.go b/internal/datacoord/server.go
index b5c0ac15dc29f..ada34adad3c63 100644
--- a/internal/datacoord/server.go
+++ b/internal/datacoord/server.go
@@ -213,7 +213,7 @@ func CreateServer(ctx context.Context, factory dependency.Factory, opts ...Optio
 		quitCh:                 make(chan struct{}),
 		factory:                factory,
 		flushCh:                make(chan UniqueID, 1024),
-		notifyIndexChan:        make(chan UniqueID),
+		notifyIndexChan:        make(chan UniqueID, 1024),
 		dataNodeCreator:        defaultDataNodeCreatorFunc,
 		indexNodeCreator:       defaultIndexNodeCreatorFunc,
 		rootCoordClientCreator: defaultRootCoordCreatorFunc,
diff --git a/tests/go_client/common/utils.go b/tests/go_client/common/utils.go
index 7b671b0b8c377..76722bc2008ab 100644
--- a/tests/go_client/common/utils.go
+++ b/tests/go_client/common/utils.go
@@ -134,8 +134,6 @@ type InvalidExprStruct struct {
 var InvalidExpressions = []InvalidExprStruct{
 	{Expr: "id in [0]", ErrNil: true, ErrMsg: "fieldName(id) not found"},                                          // not exist field but no error
 	{Expr: "int64 in not [0]", ErrNil: false, ErrMsg: "cannot parse expression"},                                  // wrong term expr keyword
-	{Expr: "int64 > 10 AND int64 < 100", ErrNil: false, ErrMsg: "cannot parse expression"},                        // AND isn't supported
-	{Expr: "int64 < 10 OR int64 > 100", ErrNil: false, ErrMsg: "cannot parse expression"},                         // OR isn't supported
 	{Expr: "int64 < floatVec", ErrNil: false, ErrMsg: "not supported"},                                            // unsupported compare field
 	{Expr: "floatVec in [0]", ErrNil: false, ErrMsg: "cannot be casted to FloatVector"},                           // value and field type mismatch
 	{Expr: fmt.Sprintf("%s == 1", DefaultJSONFieldName), ErrNil: true, ErrMsg: ""},                                // hist empty