# KillDuplicatesPreserveFields

The name of IDX fields that IDOL Server must copy to a newer copy of the same document, when KillDuplicates is performed.

If you do not set `KillDuplicatesPreserveFields`, it defaults to the option specified for `KillDuplicatesPreserveFields` in the IDOL Server configuration file’s `[Server]` section.

Actions: | DREADD DREADDDATA
Type: | String
Default: |
Example: | `KillDuplicatesPreserveFields=*/SAVEDATA`
See Also: | DREADD index action KillDuplicates parameter DREADDDATA index action KillDuplicatesOption parameter

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