Catalog table doesn't work with HIVE-style partitioning if there is no empty object ending with '/'

[Tuan, Hoang-Trong]

Upon creating a HIVE-style partitioning with multiple partitions on IBM COS

cos://<endpoint>/bucket/Prefix/Col1=a/Col2=b/Col3=d/
cos://<endpoint>/bucket/Prefix/Col1=a/Col2=b/Col3=d/file1.parquet
cos://<endpoint>/bucket/Prefix/Col1=a/Col2=a/Col3=d1/file1.parquet

Using Cloud SQL Query, I can create a catalog table using all 3 columns as the partitions (Col1, Col2, Col3). Querying this table returns data.

However, when I try to create a catalog table using only 2 columns (Col1, Col2), I can create the table, but querying the table returns no data. After the discussion with Daniel Pittner from the Cloud SQL Query team, we suspect that this is a bug that requires having an empty path ending with '/' for the creation of the catalog table to be successful.

[Daniel Pittner]

@thoangtrvn can you add where you had to add objects to validate it's working when the objects are present?

[Tuan, Hoang-Trong]

The data looks like this

It's ok to create the catalog table using all partitions columns - up to the HOUR field.

It doesn't work if the catalog table is created using only the first few columns.