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  1. Hive
  2. HIVE-10924 add support for MERGE statement
  3. HIVE-14947

Add support for Acid 2 in Merge

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Details

    • Sub-task
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 3.0.0
    • Transactions
    • None

    Description

      HIVE-14035 etc introduced a more efficient data layout for acid tables
      Additional work is needed to support Merge for these tables
      Need to make sure we generate unique ROW_IDs in each branch of the multi-insert statement. StatementId was introduced in HIVE-11030 but it's not surfaced from storage layer. It needs to be made part of ROWID to ensure unique ROW_ID from concurrent writes from the same query.

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          breaks

          Sub-task - The sub-task of the issue HIVE-16542 make merge that targets acid 2.0 table fail-fast

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed
          requires

          Bug - A problem which impairs or prevents the functions of the product. HIVE-16832 duplicate ROW__ID possible in multi insert into transactional table

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

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              ekoifman Eugene Koifman
              ekoifman Eugene Koifman
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              Dates

                Created:
                Updated:
                Resolved: