databases/cego: update 2.54.23 -> 2.54.25
- btree dump implementation to CegoAction::execDumpBTree
- cleanup of dump statements ( moved dump table / btree statements from CegoAdm.def to Cego.def ). Dump still supported for table objects
- In CegoFunction::evalFieldValue, case USERDEFINED, removed cout debugging statements
- A recovery issue occured when using user function is expression list for update operations. For expressions containing user functions, the values for CegoQueryManager and tabSetId have to be setup explicit, since this is not done by redo log decoding. The corresponding setup method setQueryManager has been added for all involved classes ( CegoExpr, CegoTerm, CegoFactor, CaseCaseCond, etc )
- new global variable CegoFieldValue::__recoveryTS has been introduced. During transaction recovery, this variable is setup to the corresponding recovery timestamp. So the constant datatime value sysdate is setup to the current recovery timestamp value ( otherwise the current timestamp is used )
- Introduced crash recovery autocorrect option ( direct and post ) for index rebuild either direclty after invalidating index during recovery or at at the end of the recovery procedure.
- indirect advantage : in case of many insert operations during recovery, this might lead to a faster recovery time, since index is invalidated and not treated direct advantage : in case of index oriented update operations, this might lead to a better recovery performance
Author: Björn Lemke <lemke@lemke-it.com>