VSQL_PLAN contains the actual execution plan information for each child cursor loaded in the library cache.
A child cursor is a data result created from the same query (parent). The same query execution will create several child cursors in the library cache.
| Join Column Equality Predicate | Join Table | In order to add |
|---|---|---|
| ADDRESS and HASH_VALUE | VSQLAREA | cursor-specific information |
| ADDRESS, HASH_VALUE, and CHILD_NUMBER | VSQL | child cursor-specific information |