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Apache_Phoenix_Queries.md

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!outputformat vertical - List select query columns vertically

!outputformat table - List select query columns in tabular format

!tables - list all tables

!describe {table name} - detailed description of the table

!primarykeys {table name} - Get primary keys defined for the table

DROP TABLE IF EXISTS my_table; - drops the table named my_table

SELECT * FROM my_table LIMIT 1000; - selects all columns from my_table limiting the result set to 1000 records

DELETE FROM my_table WHERE ID= 321; - deletes a record from my_table where the primary Id is equal to 321

CREATE INDEX idx_last_updated_date ON sales.opportunity(last_updated_date DESC) - Creates a secondary index on a table or view. The index is kept in sync with the table as data changes. At query time, the optimizer will use the index if it contains all columns referenced in the query to produce an efficient execution plan.

!quit - quites SQLLine client

Load CSV into table

python /usr/hdp/current/phoenix-client/bin/psql.py -t PHOENIX_TABLE /tmp/data.csv

Export query execution output to csv

  • After connecting to phoenix with sqlline.py:
  • !outputformat csv
  • !record data.csv
  • select * from system.catalog limit 10;
  • !record
  • !quit
  • data.csv will be created in your home directory
  • cleanup file removing total count written at end of file before processing csv file