Question about "Column ID" in Parquet Sepc

[mapleFU]

Query engine

Not engine specific. It's about the spec.

Question

Parquet spec [1] mentioned a "Column ID". It says that:

Column IDs are required.

However, I just found that in spec, we only having a "field ID" here. Are they the same thing?

And from the implemention, I think the meaning of here is also "field ID", am I right?

1. https://iceberg.apache.org/spec/#parquet

[mapleFU]

Also, in ORC parquet, I found

column id = [iceberg.id](http://iceberg.id/)

Seems they're all equal to field id?

[emkornfield]

Yes column IDs are meant to be field ids

[mapleFU]

Thanks!

[wgtmac]

@bitsondatadev @Fokko It seems that we need to clear the confusion here.

[emkornfield]

I can make a PR to clarify for parquet.