Using secondary indexes with logical relationships
You can use secondary indexes, except for Fast Path secondary indexes, with logical relationships.
When creating or using a secondary index for a database that has logical relationships, the following restrictions exist:
- A logical child segment or a dependent of a logical child cannot be a target segment.
- A logical child cannot be used as a source segment; however, a dependent of a logical child can.
- A concatenated segment or a dependent of a concatenated segment in a logical database cannot be a target segment.
- When using logical relationships, no qualification on indexed fields is allowed in the SSA for a concatenated segment. However, an SSA for any dependent of a concatenated segment can be qualified on an indexed field.