Describe the bug

With hourly partitions, the number of column files grows quickly. A lot of syscalls make to open and map all the files on TableReader partition open resulting in log lines

TableReader open partition table/2022-11-07T11.7176 [rowCount=1335278, partitionNameTxn=7176, transientRowCount=1912134, partitionIndex=30, partitionCount=6159]

Not all the columns might be read by the query and it can save a significant number of syscalls (and query time) to not open the files.

To reproduce

No response

Expected Behavior

No response

Environment

- **QuestDB version**:7.3.1

Additional context

No response