[jira] [Created] (IMPALA-11463) Support IF NOT EXISTS in alter table add columns for kudu table

[yx91490 (Jira)]

yx91490 created IMPALA-11463:
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             Summary: Support IF NOT EXISTS in alter table add columns for kudu 
table
                 Key: IMPALA-11463
                 URL: https://issues.apache.org/jira/browse/IMPALA-11463
             Project: IMPALA
          Issue Type: Improvement
    Affects Versions: Impala 4.1.0
            Reporter: yx91490
            Assignee: yx91490


Impala already supports such semantics for general hive table in IMPALA-7832 , 
but will return error if any colum already exists when apply such SQL to kudu 
table:
{code:java}
ALTER TABLE name ADD [IF NOT EXISTS] COLUMNS (col_spec[, col_spec ...]) {code}



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