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Posted to issues@impala.apache.org by "Thomas Tauber-Marshall (JIRA)" <ji...@apache.org> on 2017/06/15 22:35:00 UTC

[jira] [Created] (IMPALA-5521) Support multiple actions in ALTER TABLE statements

Thomas Tauber-Marshall created IMPALA-5521:
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             Summary: Support multiple actions in ALTER TABLE statements
                 Key: IMPALA-5521
                 URL: https://issues.apache.org/jira/browse/IMPALA-5521
             Project: IMPALA
          Issue Type: Improvement
          Components: Catalog, Frontend
    Affects Versions: Impala 2.10.0
            Reporter: Thomas Tauber-Marshall


A change going in soon (IMPALA-4622) adds support for statements of the form:
ALTER TABLE <table> ALTER COLUMN <column> SET attr value [attr value, ...]
modeled on Postgres's alter statements.

Postgres supports multiple "action" clauses (here "ALTER COLUMN ... SET ...") in a single statement, and we should support this as well, eg:
ALTER TABLE <table> ALTER COLUMN <column> SET attr value [attr value, ...] ALTER COLUMN <different column> SET attr value [attr value, ...]



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