in src/afs.cc [1627:1634]
arrow::Result<int64_t> DoPutCommandStatementUpdate(
const arrow::flight::ServerCallContext& context,
const arrow::flight::sql::StatementUpdate& command) override
{
ARROW_ASSIGN_OR_RAISE(auto sessionID, session_id(context));
const auto& query = command.query;
return proxy_->update(sessionID, query);
}