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2.4.8.1 Search Update Descriptor (SUD)

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The SUD represents a single unit of change that can have an effect on any of the search objects. When a change is made to the contents of a PST (add, modification, removal, and so on), the modifier is responsible to create a SUD that describes the change and queue it into the Search Management Queue (SMQ). In order to prevent wasted space in the PST, the following rules are applied:

  1. If indexing is enabled for a desktop search, the following types are queued:

    • SUDT_MSG_ADD

    • SUDT_MSG_MOD

    • SUDT_MSG_DEL

    • SUDT_FLD_ADD

    • SUDT_FLD_MOD

    • SUDT_FLD_DEL

    • SUDT_IDX_MSG_DEL

    • SUDT_MSG_MOV

  2. The following types are queued:

    • SUDT_SRCH_ADD

    • SUDT_SRCH_MOD

    • SUDT_SRCH_DEL

  3. If the NIDs of either old or new parent folders are contained in the SDO, the following types are queued:

    • SUDT_MSG_MOV

    • SUDT_FLD_MOV

    • SUDT_MSG_ADD

    • SUDT_MSG_MOD

    • SUDT_MSG_ROW_MOD

    • SUDT_MSG_DEL

    • SUDT_MSG_SPAM

    • SUDT_IDX_MSG_DEL

    • SUDT_FLD_ADD

    • SUDT_FLD_MOD

    • SUDT_FLD_DEL

  4. If none of the above conditions is satisfied, the SUD is not queued.