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https://dev.mysql.com/worklog/task/?id=1524
SQL Performance Tuning mentions that Informix, Oracle, and Sybase support bitmap indexes. So does IBM, but DB2 bitmap indexes are not similar to the others. References ----- Bug##30347 Support Bitmap Indexes (feature request)
https://stackoverflow.com/questions/31007833/does-mysql-support-for-bitmap-indexes
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https://dba.stackexchange.com/questions/71808/btree-index-and-bit-map-index
marked as duplicate by Paul White says GoFundMonica ♦, Mark Storey-Smith, ypercubeᵀᴹ, Mat, Max Vernon Jul 18 '14 at 16:40. This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.
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.
https://stackanswers.net/questions/does-it-make-sense-to-fake-bitmap-indexes
However, I want to support multiple db engines, some of which do not offer bitmap indices on their tables (in particular, MySQL). Now, I can certainly build and maintain my own bitmap index and use it to look for row ids pointing to the fact table. However, I suspect that this is going to defeat the whole purpose of the index, because the ...
https://dev.mysql.com/doc/refman/5.5/en/create-index.html
For more information about indexes, see Section 8.3.1, “How MySQL Uses Indexes”. An index specification of the form (key _part1 ... If the first UNIQUE NOT NULL index does not consist of a single integer ... Storage engines not listed in the table do not support an index_type clause in index definitions. Table 13.1 Index Types Per Storage ...
https://www.quora.com/What-is-Bitmap-Index-in-SQL-server-and-what-are-its-applications
Sep 13, 2016 · To be 100% clear, Microsoft SQL Server (assuming this is what you mean) does not support Bitmap Indexes. It has a feature called Bitmap Filters, which are different but similar [1]. Assuming you are asking the broader question about when are bitma...
https://docs.oracle.com/cd/B28359_01/server.111/b28313/indexes.htm
Bitmap indexes are typically only a fraction of the size of the indexed data in the table. An index provides pointers to the rows in a table that contain a given key value. A regular index stores a list of rowids for each key corresponding to the rows with that key value. In a bitmap index, a bitmap for each key value replaces a list of rowids.
https://dev.mysql.com/doc/refman/5.5/en/index-btree-hash.html
A B-tree index can be used for column comparisons in expressions that use the =, >, >=, <, <=, or BETWEEN operators. The index also can be used for LIKE comparisons if the argument to LIKE is a constant string that does not start with a wildcard character.
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