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  1. MariaDB Server
  2. MDEV-20950

Reduce size of record offsets

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    Description

      Now offsets have stack part and heap part which is used when stack part can not hold that big amount of fields in a table. `mem_heap_t` is used to very wide tables. And the idea is to replace this dichotomy with stack only wider array with optimized offset size: uint16_t instead of ulint.

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          causes

          Bug - A problem which impairs or prevents the functions of the product. MDEV-21595 typedef offset_t conflicts on AIX

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-23198 mysqld crash when running REPLACE update

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MDEV-30567 rec_get_offsets() is not optimal

          • Major - Major loss of function.
          • Closed
          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-19230 Get rid of dynamic part of record offsets

          • Major - Major loss of function.
          • Closed
          relates to

          Task - A task that needs to be done. MDEV-21313 Introduce a class to store record offsets

          • Major - Major loss of function.
          • Open

          Task - A task that needs to be done. MDEV-18746 Reduce the amount of mem_heap_create() or malloc()

          • Major - Major loss of function.
          • Open

          Task - A task that needs to be done. MDEV-30720 Expert feedback on changing the type of rec_offs typedef and its impact on the code

          • Major - Major loss of function.
          • Open

          Activity

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            kevg Eugene Kosov (Inactive) created issue -
            kevg Eugene Kosov (Inactive) made changes -
            Field Original Value New Value
            kevg Eugene Kosov (Inactive) made changes -
            Rank Ranked higher
            marko Marko Mäkelä made changes -
            Summary Make offests stack-only Make offsets stack-only
            kevg Eugene Kosov (Inactive) made changes -
            kevg Eugene Kosov (Inactive) made changes -
            Status Open [ 1 ] In Progress [ 3 ]
            kevg Eugene Kosov (Inactive) made changes -
            Assignee Eugene Kosov [ kevg ] Marko Mäkelä [ marko ]
            Status In Progress [ 3 ] In Review [ 10002 ]
            marko Marko Mäkelä made changes -
            Assignee Marko Mäkelä [ marko ] Eugene Kosov [ kevg ]
            Status In Review [ 10002 ] Stalled [ 10000 ]
            kevg Eugene Kosov (Inactive) made changes -
            Summary Make offsets stack-only Reduce size of record offsets
            marko Marko Mäkelä made changes -
            Fix Version/s 10.2.31 [ 24017 ]
            Fix Version/s 10.3.22 [ 24018 ]
            Fix Version/s 10.4.12 [ 24019 ]
            Fix Version/s 10.2 [ 14601 ]
            Fix Version/s 10.3 [ 22126 ]
            Fix Version/s 10.4 [ 22408 ]
            Resolution Fixed [ 1 ]
            Status Stalled [ 10000 ] Closed [ 6 ]
            kevg Eugene Kosov (Inactive) made changes -
            marko Marko Mäkelä made changes -
            Fix Version/s 10.5.1 [ 24029 ]
            julien.fritsch Julien Fritsch made changes -
            Fixing Priority 250
            elenst Elena Stepanova made changes -
            marko Marko Mäkelä made changes -
            serg Sergei Golubchik made changes -
            Workflow MariaDB v3 [ 100800 ] MariaDB v4 [ 134125 ]
            marko Marko Mäkelä made changes -
            marko Marko Mäkelä made changes -

            People

              kevg Eugene Kosov (Inactive)
              kevg Eugene Kosov (Inactive)
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              Dates

                Created:
                Updated:
                Resolved:

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