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171f1701a1
- Fix in CegoBtreeManager for duplicate null handling. The corresponding btree value has to be checked to be null. For this, the method CegoBTreeValue::isNull has been introduced - Fix in CegoFieldValue::negate, for FIXED_TYPE values, trailing zeros have to be treated. Otherwise, select null - a from t1 where a = 0.10 will result in 0.1 - Patch in 'update with return' clause. It seems to be useful, that in combination with return, update should return after first matching tuple providing the updated tuple in the return clause. So the values for the tuple can be stored in procedure variables. create table t1 ( a int, b string(30)); insert into t1 values ( 1, 'DONE'); insert into t1 values ( 2, 'DONE'); insert into t1 values ( 3, 'WAIT'); insert into t1 values ( 4, 'DONE'); insert into t1 values ( 5, 'WAIT'); update t1 set b = 'DONE' where b = 'WAIT' return :a = a; Just the tuple with a = 3 is update and the value of a is returned in the procedure variable :a - For update with return statements, added the on first option. Since the return variable can only store one return values, this option specifies, if the update should return after first tuple or if all matching tuples should be updated. - In CegoMain, changed separator token for tsdef from ":;" to "=", since for mingw configurations, absolute path handling was broken. This resulted in adapations for mkdb and cgmkdb scripts. - Fix in CegoObjectManager::getObjectListByTable, if object does not exist, an exception is thrown now. This resulted in a fix for CegoQueryHelper::checkIndexForPredicate, where now the table alias has to be mapped to the correct physical table name ( via coList as a new method argument ) - Fix in CegoAttrDesc::evalTableReferences to treat alias objects in joins - Grammar expansion to support inner/left outer/right outer joins without a condition. This might be useful for specific join order to use appropriate table indices ( see dbcheck/check088.sql ) - Fix in CegoQueryHelper::checkIndexForPredicate, index evaluation for alias objects was still not treated - Fix in CegoDistCursor::getPlan and CegoAction::getJoinPlanString to cover execution plan for alias objects Submitted by: Björn Lemke <lemke@lemke-it.com> |
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