Function check_column_metadatas_consistent 

pub(crate) fn check_column_metadatas_consistent(
    region_metadatas: &[RegionMetadata],
) -> Option<Vec<ColumnMetadata>>

Checks if the column metadatas are consistent.

The column metadatas are consistent if:

• The column metadatas are the same.
• The primary key are the same.
• The table id of the region metadatas are the same.

Panic

Panic if region_metadatas is empty.