sql - local-index and partition-key on same column of a table -



sql - local-index and partition-key on same column of a table -

i had table having global index(b-tree) on date column. created range partition on improve retrieval performance. partition key used same column has indexes on it. later moved global indexes local dropping recreating local index on same date column.

now have local index , partition key on same column.but after dataload table taking 3 times more of usual time

what reason if partition key , local index on same column of table dataload takes more time? when checked explain plan , figured queries not using local indexes. why not utilize local index in case? there hidden inbuilt indexes attached partion key , oracle uses in place of local index? solution performance of dataload doesnot impacted? leads on highly appreciated.

sql indexing oracle10g partitioning

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