Oracle cli client (sqlplus) has a neat feature, if you put `/[enter]` in the prompt, it re-executes the last SQL.

```sql
:) select 1;
┌─1─┐
│ 1 │
└───┘

:) /
┌─1─┐
│ 1 │
└───┘
```

currently `<up><enter>` pollutes the screen by the SQL text and can contain SQL script, not a single query. Probably echo should be disabled in this case as well.
{
            return std::tie(name, host_name)
                 < std::tie(rhs.name, rhs.host_name);
        }
    };
    std::map<Id, UInt64> rows_by_name;
    for (size_t src_row = 0; src_row < src.rows(); ++src_row)
    {
        Id id{
            src_column_name.getDataAt(src_row),
            src_column_host_name.getDataAt(src_row),
        };
        rows_by_name[id] = src_row;
    }
    /// Filter out snapshots
    std::seer_mask;
    for (size_t i = 0; i < src_array_thread_id.size(); ++i)