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  1. Drivers
  2. DRIVERS-706

Collection and index creation in multi-doc txns

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    • Type: Icon: Epic Epic
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
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      Summary: Allow creating collections inside multi-document transactions.
      Goals: Allow the following operations in a multi-document transaction:

      • insert (including upsert) into a non-existing collection to implicitly create it.
      • create a collection.
      • createIndexes on an empty collection created in the same transaction or on a non-existing collection, implicitly creating it..
      • createIndexes where the index already exists (ensuring existence)
      • Allow $out for cases where the target does not exist ( {dropTarget: false}

        ).

      • Allow $merge in aggregations.
      • Avoid MODE_X collection locks for DDL operations inside transactions
        These operations will be part of the transaction, and abort/commit together with the rest of the transaction.
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      Summary: Allow creating collections inside multi-document transactions. Goals: Allow the following operations in a multi-document transaction: insert (including upsert) into a non-existing collection to implicitly create it. create a collection. createIndexes on an empty collection created in the same transaction or on a non-existing collection, implicitly creating it.. createIndexes where the index already exists (ensuring existence) Allow $out for cases where the target does not exist ( {dropTarget: false} ). Allow $merge in aggregations. Avoid MODE_X collection locks for DDL operations inside transactions These operations will be part of the transaction, and abort/commit together with the rest of the transaction.
    • 100
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      Key Status/Resolution FixVersion
      NODE-2295 Fixed 3.6.0
      PHPLIB-496 Fixed 1.7.0-beta1, 1.7.0
      GODRIVER-1391 Fixed 1.4.0
      JAVA-3492 Fixed 4.1.0
      CDRIVER-3419 Fixed 1.17.0-beta, 1.17.0
      PYTHON-2030 Fixed 3.11
      CSHARP-2834 Fixed 2.11.0
      RUBY-1995 Fixed 2.13.0.beta1
      CXX-1868 Fixed 3.6.0-rc0, 3.6.0
      MOTOR-449 Won't Do
      RUST-363 Duplicate
      SWIFT-789 Done
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      #scriptField, #scriptField *{ border: 1px solid black; } #scriptField{ border-collapse: collapse; } #scriptField td { text-align: center; /* Center-align text in table cells */ } #scriptField td.key { text-align: left; /* Left-align text in the Key column */ } #scriptField a { text-decoration: none; /* Remove underlines from links */ border: none; /* Remove border from links */ } /* Add green background color to cells with FixVersion */ #scriptField td.hasFixVersion { background-color: #00FF00; /* Green color code */ } /* Center-align the first row headers */ #scriptField th { text-align: center; } Key Status/Resolution FixVersion NODE-2295 Fixed 3.6.0 PHPLIB-496 Fixed 1.7.0-beta1, 1.7.0 GODRIVER-1391 Fixed 1.4.0 JAVA-3492 Fixed 4.1.0 CDRIVER-3419 Fixed 1.17.0-beta, 1.17.0 PYTHON-2030 Fixed 3.11 CSHARP-2834 Fixed 2.11.0 RUBY-1995 Fixed 2.13.0.beta1 CXX-1868 Fixed 3.6.0-rc0, 3.6.0 MOTOR-449 Won't Do RUST-363 Duplicate SWIFT-789 Done

      Epic Summary

      Summary

      This project is to allow creation, renaming and dropping of collections inside of multi-document transactions on a replica set.

      Motivation

      This is a pre-requisite to implementing transactional sharded create, rename and drop. Applications may implicitly create collections on first insertion, so not allowing that inside transactions limits the usability of transactions. Aggregations with $out require renaming and potentially dropping existing collections.

      Lead : Matt
      Author : Andreas
      POCs : Node, Java, PHP - Andreas

      Spec Update: https://github.com/mongodb/specifications/commit/de5b560ebe2ba28d9569031ed8ea1df3164eeef7#diff-7a1749b8c865dfb4e49125f9bd6a8bd7

            Assignee:
            Unassigned Unassigned
            Reporter:
            esha.bhargava@mongodb.com Esha Bhargava
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              Created:
              Updated:
              Resolved: