Monday 15 August 2011

Load Hive partition from Hive view -



Load Hive partition from Hive view -

i have external hive table 4 partitions. have 4 hive views based on different hive table.

every week want hive view overwrite partitions in external hive table.

i know can create unpartitioned hive table view show below create table hive_table select * hive_view;

but there way overwrite partitions view data?

yes, there way:

insert overwrite table <table_name> partition(<partition_clause>) select <select_clause>

it required set hive.exec.dynamic.partition true before such operations. see details here: hive language manual dml - dynamic partitions

view hive partition

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