diff --git a/x/ibc/core/client/query.go b/x/ibc/core/client/query.go index 93eb458952..273e25583c 100644 --- a/x/ibc/core/client/query.go +++ b/x/ibc/core/client/query.go @@ -18,20 +18,25 @@ import ( // to perform the query should be set in the client context. The query will be // performed at one below this height (at the IAVL version) in order to obtain // the correct merkle proof. Proof queries at height less than or equal to 2 are -// not supported. +// not supported. Queries with a client context height of 0 will perform a query +// at the lastest state available. // Issue: https://github.com/cosmos/cosmos-sdk/issues/6567 func QueryTendermintProof(clientCtx client.Context, key []byte) ([]byte, []byte, clienttypes.Height, error) { height := clientCtx.Height - // ABCI queries at height less than or equal to 2 are not supported. + // ABCI queries at heights 1, 2 or less than or equal to 0 are not supported. // Base app does not support queries for height less than or equal to 1. - // Therefore, a query at height 2 would be equivalent to a query at height 3 - if clientCtx.Height <= 2 { + // Therefore, a query at height 2 would be equivalent to a query at height 3. + // A height of 0 will query with the lastest state. + if height != 0 && height <= 2 { return nil, nil, clienttypes.Height{}, fmt.Errorf("proof queries at height <= 2 are not supported") } // Use the IAVL height if a valid tendermint height is passed in. - height-- + // A height of 0 will query with the latest state. + if height != 0 { + height-- + } req := abci.RequestQuery{ Path: fmt.Sprintf("store/%s/key", host.StoreKey),