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This patch adds support for the hive.sql.query table property in Hive JDBC tables accessed through Impala. Impala has support for Hive JDBC tables using the hive.sql.table property, which limits users to simple table access. However, many use cases demand the ability to expose complex joins, filters, aggregations, or derived columns as external views. Hive.sql.query leads to a custom SQL query that returns a virtual table(subquery) instead of pointing to a physical table. These use cases cannot be achieved with just the hive.sql.table property. This change allows Impala to: • Interact with views or complex queries defined on external systems without needing schema-level access to base tables. • Expose materialized logic (such as filters, joins, or transformations) via Hive to Impala consumers in a secure, abstracted way. • Better align with data virtualization use cases where physical data location and structure should be hidden from the querying engine. This patch also lays the groundwork for future enhancements such as predicate pushdown and performance optimizations for Hive JDBC tables backed by queries. Testing: End-to-end tests are included in test_ext_data_sources.py. Change-Id: I039fcc1e008233a3eeed8d09554195fdb8c8706b Reviewed-on: http://gerrit.cloudera.org:8080/22865 Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
752 lines
18 KiB
Plaintext
752 lines
18 KiB
Plaintext
====
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---- QUERY
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select * from country_postgres;
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---- RESULTS
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1,'India',true,10,100,1000,10000,1.100000023841858,1.11,2024-01-01,'IN',2024-01-01 10:00:00
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2,'Russia',false,20,200,2000,20000,2.200000047683716,2.22,2024-02-01,'RU',2024-02-01 11:00:00
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3,'USA',true,30,300,3000,30000,3.299999952316284,3.33,2024-03-01,'US',2024-03-01 12:00:00
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---- TYPES
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INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
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====
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---- QUERY
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select * from country_keystore_postgres;
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---- RESULTS
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1,'India',true,10,100,1000,10000,1.100000023841858,1.11,2024-01-01,'IN',2024-01-01 10:00:00
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2,'Russia',false,20,200,2000,20000,2.200000047683716,2.22,2024-02-01,'RU',2024-02-01 11:00:00
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3,'USA',true,30,300,3000,30000,3.299999952316284,3.33,2024-03-01,'US',2024-03-01 12:00:00
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---- TYPES
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INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
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====
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---- QUERY
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select id, name, date_col from country_postgres;
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---- RESULTS
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1,'India',2024-01-01
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2,'Russia',2024-02-01
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3,'USA',2024-03-01
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---- TYPES
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INT, STRING, DATE
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====
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---- QUERY
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select id, name, date_col from country_keystore_postgres;
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---- RESULTS
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1,'India',2024-01-01
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2,'Russia',2024-02-01
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3,'USA',2024-03-01
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---- TYPES
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INT, STRING, DATE
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====
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---- QUERY
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select count(*) from country_postgres;
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---- RESULTS
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3
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---- TYPES
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BIGINT
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====
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---- QUERY
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select count(*) from country_keystore_postgres;
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---- RESULTS
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3
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---- TYPES
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BIGINT
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====
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---- QUERY
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select distinct name from country_postgres;
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---- RESULTS
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'India'
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'Russia'
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'USA'
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---- TYPES
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STRING
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====
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---- QUERY
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select distinct name from country_keystore_postgres;
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---- RESULTS
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'India'
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'Russia'
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'USA'
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---- TYPES
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STRING
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====
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---- QUERY
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# Check for null values
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select * from country_postgres where string_col IS NULL;
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---- RESULTS
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---- TYPES
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INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
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====
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---- QUERY
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select * from country_keystore_postgres where string_col IS NULL;
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---- RESULTS
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---- TYPES
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INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
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====
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---- QUERY
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# Order by integer column
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select id, name, int_col from country_postgres order by int_col DESC;
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---- RESULTS
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3,'USA',3000
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2,'Russia',2000
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1,'India',1000
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---- TYPES
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INT, STRING, INT
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====
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---- QUERY
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select id, name, int_col from country_keystore_postgres order by int_col DESC;
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---- RESULTS
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3,'USA',3000
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2,'Russia',2000
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1,'India',1000
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---- TYPES
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INT, STRING, INT
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====
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---- QUERY
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# Select using case statement
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select id, name, case when bool_col then 'Active' else 'Inactive' end as status from country_postgres;
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---- RESULTS
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1,'India','Active'
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2,'Russia','Inactive'
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3,'USA','Active'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select id, name, case when bool_col then 'Active' else 'Inactive' end as status from country_keystore_postgres;
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---- RESULTS
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1,'India','Active'
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2,'Russia','Inactive'
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3,'USA','Active'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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# Check for minimum date
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select min(date_col) from country_postgres;
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---- RESULTS
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2024-01-01
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---- TYPES
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DATE
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====
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---- QUERY
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select min(date_col) from country_keystore_postgres;
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---- RESULTS
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2024-01-01
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---- TYPES
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DATE
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====
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---- QUERY
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# Join with a self table alias
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select a.id, a.name, b.name from country_postgres a join country_postgres b on a.id <> b.id;
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---- RESULTS
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1,'India','Russia'
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1,'India','USA'
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2,'Russia','India'
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2,'Russia','USA'
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3,'USA','India'
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3,'USA','Russia'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.name from country_keystore_postgres a join country_keystore_postgres b on a.id <> b.id;
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---- RESULTS
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1,'India','Russia'
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1,'India','USA'
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2,'Russia','India'
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2,'Russia','USA'
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3,'USA','India'
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3,'USA','Russia'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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# Left join with another table
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select a.id, a.name, b.string_col from country_postgres a left join country_keystore_postgres b on a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.string_col from country_keystore_postgres a left join country_postgres b on a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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# Right join with another table
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select a.id, a.name, b.string_col from country_postgres a right join country_keystore_postgres b on a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.string_col from country_keystore_postgres a right join country_postgres b on a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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# Full outer join
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select a.id, a.name, b.string_col from country_postgres a full outer join country_keystore_postgres b on a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.string_col from country_keystore_postgres a full outer join country_postgres b on a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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# Using IN clause
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select * from country_postgres where name IN ('India', 'USA');
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---- RESULTS
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1,'India',true,10,100,1000,10000,1.100000023841858,1.11,2024-01-01,'IN',2024-01-01 10:00:00
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3,'USA',true,30,300,3000,30000,3.299999952316284,3.33,2024-03-01,'US',2024-03-01 12:00:00
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---- TYPES
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INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
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====
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---- QUERY
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select * from country_keystore_postgres where name IN ('India', 'USA');
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---- RESULTS
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1,'India',true,10,100,1000,10000,1.100000023841858,1.11,2024-01-01,'IN',2024-01-01 10:00:00
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3,'USA',true,30,300,3000,30000,3.299999952316284,3.33,2024-03-01,'US',2024-03-01 12:00:00
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---- TYPES
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INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
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====
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---- QUERY
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select * from country_postgres_query;
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---- RESULTS
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1,'India',true,10,100,1000,10000,1.100000023841858,1.11,2024-01-01,'IN',2024-01-01 10:00:00
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2,'Russia',false,20,200,2000,20000,2.200000047683716,2.22,2024-02-01,'RU',2024-02-01 11:00:00
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3,'USA',true,30,300,3000,30000,3.299999952316284,3.33,2024-03-01,'US',2024-03-01 12:00:00
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---- TYPES
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INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
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====
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---- QUERY
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select * from country_keystore_postgres_query;
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---- RESULTS
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1,'India',true,10,100,1000,10000,1.100000023841858,1.11,2024-01-01,'IN',2024-01-01 10:00:00
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2,'Russia',false,20,200,2000,20000,2.200000047683716,2.22,2024-02-01,'RU',2024-02-01 11:00:00
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3,'USA',true,30,300,3000,30000,3.299999952316284,3.33,2024-03-01,'US',2024-03-01 12:00:00
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---- TYPES
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INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
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====
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---- QUERY
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select id, name, date_col from country_postgres_query;
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---- RESULTS
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1,'India',2024-01-01
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2,'Russia',2024-02-01
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3,'USA',2024-03-01
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---- TYPES
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INT, STRING, DATE
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====
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---- QUERY
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select id, name, date_col from country_keystore_postgres_query;
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---- RESULTS
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1,'India',2024-01-01
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2,'Russia',2024-02-01
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3,'USA',2024-03-01
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---- TYPES
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INT, STRING, DATE
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====
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---- QUERY
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select count(*) from country_postgres_query;
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---- RESULTS
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3
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---- TYPES
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BIGINT
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====
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---- QUERY
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select count(*) from country_keystore_postgres_query;
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---- RESULTS
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3
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---- TYPES
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BIGINT
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====
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---- QUERY
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select distinct name from country_postgres_query;
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---- RESULTS
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'India'
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'Russia'
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'USA'
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---- TYPES
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STRING
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====
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---- QUERY
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select distinct name from country_keystore_postgres_query;
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---- RESULTS
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'India'
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'Russia'
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'USA'
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---- TYPES
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STRING
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====
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---- QUERY
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# Check for null values
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select * from country_postgres_query where string_col IS NULL;
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---- RESULTS
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---- TYPES
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INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
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====
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---- QUERY
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select * from country_keystore_postgres_query where string_col IS NULL;
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---- RESULTS
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---- TYPES
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INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
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====
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---- QUERY
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# Order by integer column
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select id, name, int_col from country_postgres_query order by int_col DESC;
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---- RESULTS
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3,'USA',3000
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2,'Russia',2000
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1,'India',1000
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---- TYPES
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INT, STRING, INT
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====
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---- QUERY
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select id, name, int_col from country_keystore_postgres_query order by int_col DESC;
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---- RESULTS
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3,'USA',3000
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2,'Russia',2000
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1,'India',1000
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---- TYPES
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INT, STRING, INT
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====
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---- QUERY
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# Select using case statement
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select id, name, case when bool_col then 'Active' else 'Inactive' end as status from country_postgres_query;
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---- RESULTS
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1,'India','Active'
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2,'Russia','Inactive'
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3,'USA','Active'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select id, name, case when bool_col then 'Active' else 'Inactive' end as status from country_keystore_postgres_query;
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---- RESULTS
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1,'India','Active'
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2,'Russia','Inactive'
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3,'USA','Active'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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# Check for minimum date
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select min(date_col) from country_postgres_query;
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---- RESULTS
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2024-01-01
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---- TYPES
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DATE
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====
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---- QUERY
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select min(date_col) from country_keystore_postgres_query;
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---- RESULTS
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2024-01-01
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---- TYPES
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DATE
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====
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---- QUERY
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# Join with a self table alias
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select a.id, a.name, b.name from country_postgres_query a join country_postgres_query b on a.id <> b.id;
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---- RESULTS
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1,'India','Russia'
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1,'India','USA'
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2,'Russia','India'
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2,'Russia','USA'
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3,'USA','India'
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3,'USA','Russia'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.name from country_keystore_postgres_query a join country_keystore_postgres_query b on
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a.id <> b.id;
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---- RESULTS
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1,'India','Russia'
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1,'India','USA'
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2,'Russia','India'
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2,'Russia','USA'
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3,'USA','India'
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3,'USA','Russia'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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# Left join with another table
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select a.id, a.name, b.string_col from country_postgres_query a left join country_keystore_postgres_query b on
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a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.string_col from country_postgres a left join country_postgres_query b on
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a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.string_col from country_keystore_postgres a left join country_postgres_query b on
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a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.string_col from country_keystore_postgres_query a left join country_postgres b on
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a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.string_col from country_keystore_postgres_query a left join country_postgres_query b on
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a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.string_col from country_postgres_query a left join country_postgres b on
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a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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select a.id, a.name, b.string_col from country_postgres_query a left join country_postgres_query b on
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a.id = b.id;
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---- RESULTS
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1,'India','IN'
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2,'Russia','RU'
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3,'USA','US'
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---- TYPES
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INT, STRING, STRING
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====
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---- QUERY
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# Right join with another table
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select a.id, a.name, b.string_col from country_postgres_query a right join country_keystore_postgres_query b on
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a.id = b.id;
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---- RESULTS
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1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.string_col from country_keystore_postgres_query a right join country_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.string_col from country_postgres a right join country_keystore_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.string_col from country_postgres a right join country_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.string_col from country_keystore_postgres a right join country_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.string_col from country_keystore_postgres a right join country_keystore_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
# Full outer join
|
|
select a.id, a.name, b.string_col from country_postgres_query a full outer join country_keystore_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.string_col from country_keystore_postgres_query a full outer join country_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.string_col from country_postgres a full outer join country_keystore_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.string_col from country_postgres a full outer join country_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.string_col from country_keystore_postgres a full outer join country_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.string_col from country_keystore_postgres a full outer join country_keystore_postgres_query b on
|
|
a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
# Using IN clause
|
|
select * from country_postgres_query where name IN ('India', 'USA');
|
|
---- RESULTS
|
|
1,'India',true,10,100,1000,10000,1.100000023841858,1.11,2024-01-01,'IN',2024-01-01 10:00:00
|
|
3,'USA',true,30,300,3000,30000,3.299999952316284,3.33,2024-03-01,'US',2024-03-01 12:00:00
|
|
---- TYPES
|
|
INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
|
|
====
|
|
---- QUERY
|
|
select * from country_keystore_postgres_query where name IN ('India', 'USA');
|
|
---- RESULTS
|
|
1,'India',true,10,100,1000,10000,1.100000023841858,1.11,2024-01-01,'IN',2024-01-01 10:00:00
|
|
3,'USA',true,30,300,3000,30000,3.299999952316284,3.33,2024-03-01,'US',2024-03-01 12:00:00
|
|
---- TYPES
|
|
INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
|
|
====
|
|
---- QUERY
|
|
select * from quoted_col;
|
|
---- RESULTS
|
|
1,'India',true,10,100,1000,10000,1.100000023841858,1.11,2024-01-01,'IN',2024-01-01 10:00:00
|
|
2,'Russia',false,20,200,2000,20000,2.200000047683716,2.22,2024-02-01,'RU',2024-02-01 11:00:00
|
|
3,'USA',true,30,300,3000,30000,3.299999952316284,3.33,2024-03-01,'US',2024-03-01 12:00:00
|
|
---- TYPES
|
|
INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
|
|
====
|
|
---- QUERY
|
|
select id, name, date_col from quoted_col;
|
|
---- RESULTS
|
|
1,'India',2024-01-01
|
|
2,'Russia',2024-02-01
|
|
3,'USA',2024-03-01
|
|
---- TYPES
|
|
INT, STRING, DATE
|
|
====
|
|
---- QUERY
|
|
select count(*) from quoted_col;
|
|
---- RESULTS
|
|
3
|
|
---- TYPES
|
|
BIGINT
|
|
====
|
|
---- QUERY
|
|
select distinct name from quoted_col;
|
|
---- RESULTS
|
|
'India'
|
|
'Russia'
|
|
'USA'
|
|
---- TYPES
|
|
STRING
|
|
====
|
|
---- QUERY
|
|
# Check for null values
|
|
select * from quoted_col where `freeze` IS NULL;
|
|
---- RESULTS
|
|
---- TYPES
|
|
INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
|
|
====
|
|
---- QUERY
|
|
# Order by integer column
|
|
select id, name, int_col from quoted_col order by int_col DESC;
|
|
---- RESULTS
|
|
3,'USA',3000
|
|
2,'Russia',2000
|
|
1,'India',1000
|
|
---- TYPES
|
|
INT, STRING, INT
|
|
====
|
|
---- QUERY
|
|
# Select using case statement
|
|
select id, name, case when bool_col then 'Active' else 'Inactive' end as status from quoted_col;
|
|
---- RESULTS
|
|
1,'India','Active'
|
|
2,'Russia','Inactive'
|
|
3,'USA','Active'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
# Check for minimum date
|
|
select min(date_col) from quoted_col;
|
|
---- RESULTS
|
|
2024-01-01
|
|
---- TYPES
|
|
DATE
|
|
====
|
|
---- QUERY
|
|
# Join with a self table alias
|
|
select a.id, a.name, b.name from quoted_col a join quoted_col b on a.id <> b.id;
|
|
---- RESULTS
|
|
1,'India','Russia'
|
|
1,'India','USA'
|
|
2,'Russia','India'
|
|
2,'Russia','USA'
|
|
3,'USA','India'
|
|
3,'USA','Russia'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
# Left join with another table
|
|
select a.id, a.name, b.`freeze` from quoted_col a left join quoted_col b on a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.`freeze` from quoted_col a left join quoted_col b on a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
# Right join with another table
|
|
select a.id, a.name, b.`freeze` from quoted_col a right join quoted_col b on a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.`freeze` from quoted_col a right join quoted_col b on a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
# Full outer join
|
|
select a.id, a.name, b.`freeze` from quoted_col a full outer join quoted_col b on a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
select a.id, a.name, b.`freeze` from quoted_col a full outer join quoted_col b on a.id = b.id;
|
|
---- RESULTS
|
|
1,'India','IN'
|
|
2,'Russia','RU'
|
|
3,'USA','US'
|
|
---- TYPES
|
|
INT, STRING, STRING
|
|
====
|
|
---- QUERY
|
|
# Using IN clause
|
|
select * from quoted_col where name IN ('India', 'USA');
|
|
---- RESULTS
|
|
1,'India',true,10,100,1000,10000,1.100000023841858,1.11,2024-01-01,'IN',2024-01-01 10:00:00
|
|
3,'USA',true,30,300,3000,30000,3.299999952316284,3.33,2024-03-01,'US',2024-03-01 12:00:00
|
|
---- TYPES
|
|
INT, STRING, BOOLEAN, SMALLINT, SMALLINT, INT, BIGINT, FLOAT, DOUBLE, DATE, STRING, TIMESTAMP
|
|
==== |