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In extremely rare situations, it was possible for the delete stack to become corrupted on a data file after it went through automatic recovery. In these obscure scenarios, ADDREC could return a DELFLG_ERR error (31) following recovery. ADDREC and NEWREC failed with error 31 until the table was rebuilt. Instead of returning DELFLG_ERR, c-tree now discards its list of deleted records and retries the operation. This should prevent the error and allow the call to proceed normally. The following is logged to CTSTATUS:
WARNING: an invalid delete stack has been reset to zero for fixed length data file
This message indicates that all the space occupied by deleted records in that file at that point in time is lost and will not be re-used until the file is rebuilt or compacted.
Note: This is a Compatibility Change.
