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Posted to issues@hive.apache.org by "Gopal V (JIRA)" <ji...@apache.org> on 2018/04/30 06:10:00 UTC
[jira] [Assigned] (HIVE-19360) CBO: Add an "optimizedSQL" to
QueryPlan object
[ https://issues.apache.org/jira/browse/HIVE-19360?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Gopal V reassigned HIVE-19360:
------------------------------
Assignee: Gopal V
> CBO: Add an "optimizedSQL" to QueryPlan object
> -----------------------------------------------
>
> Key: HIVE-19360
> URL: https://issues.apache.org/jira/browse/HIVE-19360
> Project: Hive
> Issue Type: Improvement
> Components: CBO, Diagnosability
> Affects Versions: 3.1.0
> Reporter: Gopal V
> Assignee: Gopal V
> Priority: Major
>
> Calcite RelNodes can be converted back into SQL (as the new JDBC storage handler does), which allows Hive to print out the post CBO plan as a SQL query instead of having to guess the join orders from the subsequent Tez plan.
> The query generated might not be always valid SQL at this point, but is a world ahead of DAG plans in readability.
> Eg. tpc-ds Query4 CTEs gets expanded to
> {code}
> SELECT t16.$f3 customer_preferred_cust_flag
> FROM
> (SELECT t0.c_customer_id $f0,
> SUM((t2.ws_ext_list_price - t2.ws_ext_wholesale_cost - t2.ws_ext_discount_amt + t2.ws_ext_sales_price) / CAST(2 AS DECIMAL(10, 0))) $f8
> FROM
> (SELECT c_customer_sk,
> c_customer_id,
> c_first_name,
> c_last_name,
> c_preferred_cust_flag,
> c_birth_country,
> c_login,
> c_email_address
> FROM default.customer
> WHERE c_customer_sk IS NOT NULL
> AND c_customer_id IS NOT NULL) t0
> INNER JOIN (
> (SELECT ws_sold_date_sk,
> ws_bill_customer_sk,
> ws_ext_discount_amt,
> ws_ext_sales_price,
> ws_ext_wholesale_cost,
> ws_ext_list_price
> FROM default.web_sales
> WHERE ws_bill_customer_sk IS NOT NULL
> AND ws_sold_date_sk IS NOT NULL) t2
> INNER JOIN
> (SELECT d_date_sk,
> CAST(2002 AS INTEGER) d_year
> FROM default.date_dim
> WHERE d_year = 2002
> AND d_date_sk IS NOT NULL) t4 ON t2.ws_sold_date_sk = t4.d_date_sk) ON t0.c_customer_sk = t2.ws_bill_customer_sk
> GROUP BY t0.c_customer_id,
> t0.c_first_name,
> t0.c_last_name,
> t0.c_preferred_cust_flag,
> t0.c_birth_country,
> t0.c_login,
> t0.c_email_address) t7
> INNER JOIN (
> (SELECT t9.c_customer_id $f0,
> t9.c_preferred_cust_flag $f3,
> SUM((t11.ss_ext_list_price - t11.ss_ext_wholesale_cost - t11.ss_ext_discount_amt + t11.ss_ext_sales_price) / CAST(2 AS DECIMAL(10, 0))) $f8
> FROM
> (SELECT c_customer_sk,
> c_customer_id,
> c_first_name,
> c_last_name,
> c_preferred_cust_flag,
> c_birth_country,
> c_login,
> c_email_address
> FROM default.customer
> WHERE c_customer_sk IS NOT NULL
> AND c_customer_id IS NOT NULL) t9
> INNER JOIN (
> (SELECT ss_sold_date_sk,
> ss_customer_sk,
> ss_ext_discount_amt,
> ss_ext_sales_price,
> ss_ext_wholesale_cost,
> ss_ext_list_price
> FROM default.store_sales
> WHERE ss_customer_sk IS NOT NULL
> AND ss_sold_date_sk IS NOT NULL) t11
> INNER JOIN
> (SELECT d_date_sk,
> CAST(2002 AS INTEGER) d_year
> FROM default.date_dim
> WHERE d_year = 2002
> AND d_date_sk IS NOT NULL) t13 ON t11.ss_sold_date_sk = t13.d_date_sk) ON t9.c_customer_sk = t11.ss_customer_sk
> GROUP BY t9.c_customer_id,
> t9.c_first_name,
> t9.c_last_name,
> t9.c_preferred_cust_flag,
> t9.c_birth_country,
> t9.c_login,
> t9.c_email_address) t16
> INNER JOIN (
> (SELECT t18.c_customer_id $f0,
> SUM((t20.cs_ext_list_price - t20.cs_ext_wholesale_cost - t20.cs_ext_discount_amt + t20.cs_ext_sales_price) / CAST(2 AS DECIMAL(10, 0))) $f8
> FROM
> (SELECT c_customer_sk,
> c_customer_id,
> c_first_name,
> c_last_name,
> c_preferred_cust_flag,
> c_birth_country,
> c_login,
> c_email_address
> FROM default.customer
> WHERE c_customer_sk IS NOT NULL
> AND c_customer_id IS NOT NULL) t18
> INNER JOIN (
> (SELECT cs_sold_date_sk,
> cs_bill_customer_sk,
> cs_ext_discount_amt,
> cs_ext_sales_price,
> cs_ext_wholesale_cost,
> cs_ext_list_price
> FROM default.catalog_sales
> WHERE cs_bill_customer_sk IS NOT NULL
> AND cs_sold_date_sk IS NOT NULL) t20
> INNER JOIN
> (SELECT d_date_sk,
> CAST(2002 AS INTEGER) d_year
> FROM default.date_dim
> WHERE d_year = 2002
> AND d_date_sk IS NOT NULL) t22 ON t20.cs_sold_date_sk = t22.d_date_sk) ON t18.c_customer_sk = t20.cs_bill_customer_sk
> GROUP BY t18.c_customer_id,
> t18.c_first_name,
> t18.c_last_name,
> t18.c_preferred_cust_flag,
> t18.c_birth_country,
> t18.c_login,
> t18.c_email_address) t25
> INNER JOIN
> (SELECT t27.c_customer_id $f0,
> SUM((t29.ss_ext_list_price - t29.ss_ext_wholesale_cost - t29.ss_ext_discount_amt + t29.ss_ext_sales_price) / CAST(2 AS DECIMAL(10, 0))) $f8
> FROM
> (SELECT c_customer_sk,
> c_customer_id,
> c_first_name,
> c_last_name,
> c_preferred_cust_flag,
> c_birth_country,
> c_login,
> c_email_address
> FROM default.customer
> WHERE c_customer_sk IS NOT NULL
> AND c_customer_id IS NOT NULL) t27
> INNER JOIN (
> (SELECT ss_sold_date_sk,
> ss_customer_sk,
> ss_ext_discount_amt,
> ss_ext_sales_price,
> ss_ext_wholesale_cost,
> ss_ext_list_price
> FROM default.store_sales
> WHERE ss_customer_sk IS NOT NULL
> AND ss_sold_date_sk IS NOT NULL) t29
> INNER JOIN
> (SELECT d_date_sk,
> CAST(2001 AS INTEGER) d_year
> FROM default.date_dim
> WHERE d_year = 2001
> AND d_date_sk IS NOT NULL) t31 ON t29.ss_sold_date_sk = t31.d_date_sk) ON t27.c_customer_sk = t29.ss_customer_sk
> GROUP BY t27.c_customer_id,
> t27.c_first_name,
> t27.c_last_name,
> t27.c_preferred_cust_flag,
> t27.c_birth_country,
> t27.c_login,
> t27.c_email_address
> HAVING SUM((t29.ss_ext_list_price - t29.ss_ext_wholesale_cost - t29.ss_ext_discount_amt + t29.ss_ext_sales_price) / CAST(2 AS DECIMAL(10, 0))) > 0) t35 ON t25.$f0 = t35.$f0) ON t16.$f0 = t35.$f0
> INNER JOIN
> (SELECT t37.c_customer_id $f0,
> SUM((t39.cs_ext_list_price - t39.cs_ext_wholesale_cost - t39.cs_ext_discount_amt + t39.cs_ext_sales_price) / CAST(2 AS DECIMAL(10, 0))) $f8
> FROM
> (SELECT c_customer_sk,
> c_customer_id,
> c_first_name,
> c_last_name,
> c_preferred_cust_flag,
> c_birth_country,
> c_login,
> c_email_address
> FROM default.customer
> WHERE c_customer_sk IS NOT NULL
> AND c_customer_id IS NOT NULL) t37
> INNER JOIN (
> (SELECT cs_sold_date_sk,
> cs_bill_customer_sk,
> cs_ext_discount_amt,
> cs_ext_sales_price,
> cs_ext_wholesale_cost,
> cs_ext_list_price
> FROM default.catalog_sales
> WHERE cs_bill_customer_sk IS NOT NULL
> AND cs_sold_date_sk IS NOT NULL) t39
> INNER JOIN
> (SELECT d_date_sk,
> CAST(2001 AS INTEGER) d_year
> FROM default.date_dim
> WHERE d_year = 2001
> AND d_date_sk IS NOT NULL) t41 ON t39.cs_sold_date_sk = t41.d_date_sk) ON t37.c_customer_sk = t39.cs_bill_customer_sk
> GROUP BY t37.c_customer_id,
> t37.c_first_name,
> t37.c_last_name,
> t37.c_preferred_cust_flag,
> t37.c_birth_country,
> t37.c_login,
> t37.c_email_address
> HAVING SUM((t39.cs_ext_list_price - t39.cs_ext_wholesale_cost - t39.cs_ext_discount_amt + t39.cs_ext_sales_price) / CAST(2 AS DECIMAL(10, 0))) > 0) t45 ON t25.$f8 / t45.$f8 > t16.$f8 / t35.$f8
> AND t35.$f0 = t45.$f0) ON t7.$f0 = t35.$f0
> INNER JOIN
> (SELECT t47.c_customer_id $f0,
> SUM((t49.ws_ext_list_price - t49.ws_ext_wholesale_cost - t49.ws_ext_discount_amt + t49.ws_ext_sales_price) / CAST(2 AS DECIMAL(10, 0))) $f8
> FROM
> (SELECT c_customer_sk,
> c_customer_id,
> c_first_name,
> c_last_name,
> c_preferred_cust_flag,
> c_birth_country,
> c_login,
> c_email_address
> FROM default.customer
> WHERE c_customer_sk IS NOT NULL
> AND c_customer_id IS NOT NULL) t47
> INNER JOIN (
> (SELECT ws_sold_date_sk,
> ws_bill_customer_sk,
> ws_ext_discount_amt,
> ws_ext_sales_price,
> ws_ext_wholesale_cost,
> ws_ext_list_price
> FROM default.web_sales
> WHERE ws_bill_customer_sk IS NOT NULL
> AND ws_sold_date_sk IS NOT NULL) t49
> INNER JOIN
> (SELECT d_date_sk,
> CAST(2001 AS INTEGER) d_year
> FROM default.date_dim
> WHERE d_year = 2001
> AND d_date_sk IS NOT NULL) t51 ON t49.ws_sold_date_sk = t51.d_date_sk) ON t47.c_customer_sk = t49.ws_bill_customer_sk
> GROUP BY t47.c_customer_id,
> t47.c_first_name,
> t47.c_last_name,
> t47.c_preferred_cust_flag,
> t47.c_birth_country,
> t47.c_login,
> t47.c_email_address
> HAVING SUM((t49.ws_ext_list_price - t49.ws_ext_wholesale_cost - t49.ws_ext_discount_amt + t49.ws_ext_sales_price) / CAST(2 AS DECIMAL(10, 0))) > 0) t55 ON t25.$f8 / t45.$f8 > t7.$f8 / t55.$f8
> AND t35.$f0 = t55.$f0
> ORDER BY t16.$f3 IS NULL DESC, t16.$f3
> LIMIT 100
> {code}
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