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  1. MariaDB Server
  2. MDEV-33809

Bulk insert or DDL fails if a BLOB is too long

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    Description

      As noted in MDEV-33585, there is a limit on how much data a single system call can write. On FreeBSD, Linux, and Microsoft Windows, this limit would be much smaller than the size of a BLOB that could be buffered in a 64-bit address space of the server process.

      Specifically, row_merge_write_blob_to_tmp_file() does not limit the size of a single os_file_write() request to at most 0x7fffff000 bytes, which is the limit on Linux.

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          Bug - A problem which impairs or prevents the functions of the product. MDEV-33087 ALTER TABLE...ALGORITHM=COPY should build indexes more efficiently

          • Critical - Crashes, loss of data, severe memory leak.
          • In Progress
          is caused by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-27318 SIGSEGV in row_merge_tuple_sort and Assertion `data_size < srv_sort_buf_size' failed in row_merge_bulk_buf_add on INSERT with unique_checks and foreign_key_checks disabled

          • Blocker - Blocks development and/or testing work, production could not run.
          • Closed

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              thiru Thirunarayanan Balathandayuthapani
              marko Marko Mäkelä
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