Snowpark Migration Accelerator: Distinct¶

Description¶

Select all matching rows from the table references after removing duplicates in results. (Databricks SQL Language Reference SELECT (https://docs.databricks.com/en/sql/language-manual/sql-ref-syntax-qry-select.html))

DISTINCT eliminates duplicate values from the result set. (Snowflake SQL Language Reference SELECT)

SELECT [ DISTINCT ] { named_expression | star_clause } [, ...]
  FROM table_reference

SELECT [ DISTINCT ]
       {
         [{<object_name>|<alias>}.]<col_name>
         | [{<object_name>|<alias>}.]$<col_position>
         | <expr>
       }
       [ [ AS ] <col_alias> ]
       [ , ... ]
[ ... ]

Sample Source Patterns¶

CREATE TEMPORARY VIEW number1(c) AS VALUES (3), (1), (2), (2), (3), (4);

CREATE TEMPORARY TABLE number1(c int);
INSERT INTO number1 VALUES (3), (1), (2), (2), (3), (4);

SELECT DISTINCT c FROM number1;

SELECT DISTINCT c FROM number1;