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Carl Steinbach updated HIVE-6043: --------------------------------- Description: We need to document incompatible changes. For example * HIVE-5372 changed object inspector hierarchy breaking most if not all custom serdes * HIVE-1511/HIVE-5263 serializes ObjectInspectors with Kryo so all custom serdes (fixed by HIVE-5380) * Hive 0.12 (HIVE-4825) separates MapredWork into MapWork and ReduceWork which is used by Serdes * HIVE-5411 serializes expressions with Kryo which are used by custom serdes * HIVE-4827 removed the flag of "hive.optimize.mapjoin.mapreduce" (This flag was introduced in Hive 0.11 by HIVE-3952). was: We need to document incompatible changes. For example * HIVE-5372 changed object inspector hierarchy breaking most if not all custom serdes * HIVE-1511/HIVE-5263 serializes ObjectInspectors with Kryo so all custom serdes (fixed by HIVE-5380) * Hive 0.12 separates MapredWork into MapWork and ReduceWork which is used by Serdes * HIVE-5411 serializes expressions with Kryo which are used by custom serdes * HIVE-4827 removed the flag of "hive.optimize.mapjoin.mapreduce" (This flag was introduced in Hive 0.11 by HIVE-3952). > Document incompatible changes in Hive 0.12 and trunk > ---------------------------------------------------- > > Key: HIVE-6043 > URL: https://issues.apache.org/jira/browse/HIVE-6043 > Project: Hive > Issue Type: Task > Reporter: Brock Noland > Priority: Blocker > > We need to document incompatible changes. For example > * HIVE-5372 changed object inspector hierarchy breaking most if not all > custom serdes > * HIVE-1511/HIVE-5263 serializes ObjectInspectors with Kryo so all custom > serdes (fixed by HIVE-5380) > * Hive 0.12 (HIVE-4825) separates MapredWork into MapWork and ReduceWork > which is used by Serdes > * HIVE-5411 serializes expressions with Kryo which are used by custom serdes > * HIVE-4827 removed the flag of "hive.optimize.mapjoin.mapreduce" (This flag > was introduced in Hive 0.11 by HIVE-3952). -- This message was sent by Atlassian JIRA (v6.1.5#6160)