Re:Re: Re: multiple tables join with only one hug table.

2011-08-14 Thread Daniel,Wu
Blog for answers to commonly asked questions. From: Daniel,Wu hadoop...@163.com To: hive user@hive.apache.org Sent: Thursday, August 11, 2011 7:01 PM Subject: multiple tables join with only one hug table. if the retailer fact table is sale_fact with 10B rows, and join with 3 small tables

wants to create a JIRA (request): multiple tables join with only one hug table.

2011-08-14 Thread Daniel,Wu
my Blog for answers to commonly asked questions. From: Daniel,Wu hadoop...@163.com To: hive user@hive.apache.org Sent: Thursday, August 11, 2011 7:01 PM Subject: multiple tables join with only one hug table. if the retailer fact table is sale_fact with 10B rows, and join with 3 small tables

Re:Re: multiple tables join with only one hug table.

2011-08-13 Thread Daniel,Wu
: Thursday, August 11, 2011 7:01 PM Subject: multiple tables join with only one hug table. if the retailer fact table is sale_fact with 10B rows, and join with 3 small tables: stores (10K), products(10K), period (1K). What's the best join solution? In oracle, it can first build hash for stores

Re: Re: multiple tables join with only one hug table.

2011-08-13 Thread Koert Kuipers
asked questions.http://dailyadvisor.blogspot.com -- *From:* Daniel,Wu hadoop...@163.com *To:* hive user@hive.apache.org *Sent:* Thursday, August 11, 2011 7:01 PM *Subject:* multiple tables join with only one hug table. if the retailer fact table is sale_fact

Re: multiple tables join with only one hug table.

2011-08-12 Thread Koert Kuipers
-- *From:* Daniel,Wu hadoop...@163.com *To:* hive user@hive.apache.org *Sent:* Thursday, August 11, 2011 7:01 PM *Subject:* multiple tables join with only one hug table. if the retailer fact table is sale_fact with 10B rows, and join with 3 small tables: stores (10K

multiple tables join with only one hug table.

2011-08-11 Thread Daniel,Wu
if the retailer fact table is sale_fact with 10B rows, and join with 3 small tables: stores (10K), products(10K), period (1K). What's the best join solution? In oracle, it can first build hash for stores, and hash for products, and hash for stores. Then probe using the fact table, if the row