Eli Levine created PHOENIX-940:
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Summary: Unique Constraint
Key: PHOENIX-940
URL: https://issues.apache.org/jira/browse/PHOENIX-940
Project: Phoenix
Issue Type: New Feature
Reporter: Eli Levine
Add support for UNIQUE constraint on one or more columns in CREATE and ALTER
TABLE statements:
{code}
CONSTRAINT constraint_name UNIQUE (column1, column2, . column_n)
{code}
One possible way to implement this is by adding a secondary index on columns
involved in the constraint and adding a check for column values before upsert.
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