For persisted queries, the request could look like this:

 { "extensions":{ "persistedQuery":{ "version":1, "sha256Hash":"ecf4edb46db40b5132295c0291d62fb65d6759a9eedfa4d5d612dd5ec54a6b38" } } } 

As there is no "query", setting the query on ExecutionInput results in a "query can't be null" AssertException.

We should use PersistedQuerySupport#PERSISTED_QUERY_MARKER as the query in that case.