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greenlion / warp

WarpSQL Server, an open source OLAP focused distribution of the world's most popular open source database bundled with OLAP performance related plugins such as the WARP storage engine..
http://warpsql.blog
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Improve DECIMAL support to store and compare packed decimals #41

Open greenlion opened 3 years ago

greenlion commented 3 years ago

This is an on-disk format change, so it should be part of beta 2 so that tables do not need to be repaired/reconstructed in beta3.

greenlion commented 3 years ago

In beta2 WARP continues to store decimal as string, and it pushes decimal comparisons to the MySQL layer. Doing decimal comparisons requires Fastbit modification of both bitmap indexing and column comparisons and is too complex for beta 2. Might be pushed out beyond beta 3.