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On Wednesday 02 January 2002 20:33, srichter wrote: > What is the difference between a data space index and a user index ? > Both have a machine index at their core (the internal object that contains the binary tree). DSI's are internal objects (they don't appear in DSPOBJD or DSPLIB) and are connected to one or more Data Spaces (the objects that contain records in physical files) and (may) have: Tables for the DS fields the index is over Tables for mapping DS fields to different data types Table for alternate collating sequence Select/omit code Space for saving key changes for delayed maintenance Facilities for journalling etc. User indexes are external objects containing not much besides the bare index. > Any insights into why the QDLS file system performs slower than the other > file system ? > I don't know. > Is a stream file a distinct object type also ? > Streamfiles are internal objects of type x1E with several subtypes, e.g. 1E01 STMF 1E02 SYMLINK 1E03 SOCKET 1E04 M36 etc. --Dave
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