14287: Reword filter restrictions.

Arvados-DCO-1.1-Signed-off-by: Tom Clegg <tclegg@veritasgenetics.com>

diff --git a/lib/controller/federation/list.go b/lib/controller/federation/list.go
index 124946de0ecace85409467315de7d9721c0e2922..414870d24f5c42912785c4b29efa1fe4f91ec786 100644 (file)
--- a/lib/controller/federation/list.go
+++ b/lib/controller/federation/list.go
@@ -68,8 +68,7 @@ func (conn *Conn) CollectionList(ctx context.Context, options arvados.ListOption
 //
 // * len(Order)==0
 //
-// * there are no filters other than the "uuid = ..." and "uuid in
-//   ..." filters mentioned above.
+// * Each filter must be either "uuid = ..." or "uuid in [...]".
 //
 // * The maximum possible response size (total number of objects that
 //   could potentially be matched by all of the specified filters)
@@ -161,7 +160,7 @@ func (conn *Conn) splitListRequest(ctx context.Context, opts arvados.ListOptions
 
        if len(todoByRemote) > 1 {
                if cannotSplit {
-                       return httpErrorf(http.StatusBadRequest, "cannot execute federated list query with filters other than 'uuid = ...' and 'uuid in [...]'")
+                       return httpErrorf(http.StatusBadRequest, "cannot execute federated list query: each filter must be either 'uuid = ...' or 'uuid in [...]'")
                }
                if opts.Count != "none" {
                        return httpErrorf(http.StatusBadRequest, "cannot execute federated list query unless count==\"none\"")