Display column names in MetaCacheExec EXPLAIN output

[hiltontj]

Problem

The MetaCacheExec displays column IDs in the EXPLAIN output. This adds a layer of indirection to operators trying to triage EXPLAIN output since they would need to look up what the column ID refers to. In addition, it is displayed as an integer, which is somewhat confusing given that DataFusion uses integers to refer to column indexes within the table schema.

Proposed solution

Pass forward the Arc<TableDefinition> to the MetaCacheExec so that it can convert the ColumnId in the predicate to a name.

Alternatives

N/A

Additional Context

The MetaCacheFunctionProvider already has a reference to the TableDefinition here:

influxdb/influxdb3_cache/src/meta_cache/table_function.rs

Line 40 in 20d09a8

table_def: Arc<TableDefinition>,

So, this can be passed directly in the TableProvider::scan to the created MetaCacheExec.

See discussion: #25566 (comment)