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The FairCom transaction processing logic, used by the FairCom Server and in single-user transaction processing, uses a system of transaction number high-water-marks to maintain consistency between transaction controlled index files and the transaction log files. When log files are erased, the high-water-marks maintained in the index headers permit the new log files to begin with transaction numbers which are consistent with the index files.
For more information regarding transaction high-water marks, please refer to Transaction High-Water Marks.
