Mysql Support Bitmap Index

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indexing - Does MySQL support for BITMAP indexes? - Stack ...

    https://stackoverflow.com/questions/31007833/does-mysql-support-for-bitmap-indexes
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indexing - Does MySQL support for BITMAP indexes? - Stack ...

    https://stackoverflow.com/a/31008606
    Teams. Q&A for Work. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

MySQL :: WL#1524: Bitmap indexes

    https://dev.mysql.com/worklog/task/?id=1524
    The likely cases are: - If there is a btree index for any column in the search, use the btree index and ignore the bitmap index - If the condition contains anything other than "column = literal" or "column IS [NOT] NULL", use a full-table scan and ignore the bitmap index. Bitmap indexes might also prove useful for EXISTS and COUNT.

MySQL Bugs: #30347: Support Bitmap Indexes

    https://bugs.mysql.com/bug.php?id=30347
    Its been more than 10 years , since this issue has been reported . Are we any close to this ?

mysql - Btree index and Bit Map Index - Database ...

    https://dba.stackexchange.com/questions/71808/btree-index-and-bit-map-index
    Btree index and Bit Map Index [duplicate] Ask Question Asked 5 years, 4 months ago. Active 5 years, 4 months ago. ... It's someone requesting that bitmap indexes be added to MySQL. It's not something that exists, it will potentially exist in future versions. – Mat Jul 18 '14 at 6:09. 1.

MySQL :: MySQL Technical Support

    https://www.mysql.com/support/
    MySQL Technical Support Services provide direct access to our expert MySQL Support engineers who are ready to assist you in the development, deployment, and management of MySQL applications. Buy MySQL 24x7 Support » The MySQL Support team is composed of seasoned MySQL developers. They are database experts and understand the issues and ...

Bitmap Index - MySQL

    https://forums.mysql.com/read.php?10,263071
    May 20, 2009 · I am new to Mysql. I am comfortable with Oracle. In the implementation we are planning to migrate from Oracle DB to MySQL. I want to compare the features available in Oracle and Mysql(and alsternatives). Like Table Partitioning(Hash, range, Composite). Indexing (BTree, Bitmap, Context search). Index orangainzed Tables Stored Packages.

MySQL :: MySQL 5.7 Reference Manual :: Function Index

    https://dev.mysql.com/doc/refman/5.7/en/dynindex-function.html
    LOAD_FILE() Section 16.2.1.1, “Advantages and Disadvantages of Statement-Based and Row-Based Replication” Section 16.2.1.3, “Determination of Safe and Unsafe Statements in Binary Logging”

MySQL :: MySQL 5.5 Reference Manual :: 13.1.13 CREATE ...

    https://dev.mysql.com/doc/refman/5.5/en/create-index.html
    CREATE INDEX is mapped to an ALTER TABLE statement to create indexes. See Section 13.1.7, “ALTER TABLE Statement”. CREATE INDEX cannot be used to create a PRIMARY KEY; use ALTER TABLE instead. For more information about indexes, see Section 8.3.1, “How MySQL Uses Indexes”.

MySQL :: MySQL 5.7 Reference Manual :: 8.3.1 How MySQL ...

    https://dev.mysql.com/doc/refman/5.7/en/mysql-indexes.html
    If there is a choice between multiple indexes, MySQL normally uses the index that finds the smallest number of rows (the most selective index). If the table has a multiple-column index, any leftmost prefix of the index can be used by the optimizer to look up rows.



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