MariaDB Columnstore - Parquet support in cpimport - proposal - Bin Ruan
BinRuan
The task is to make cpimport support parquet files as input or design a general framework to add new input formats. Considering cpimport finish its...
Update RocksDB to the latest upstream version
Junqi Xie
RocksDB is an embeddable persistent key-value store for fast storage. MariaDB has integrated this engine into the database since version 10.2.5....
SIMD for SQL expressions and functions
Mu He
Current Mariadb ColumnStore engine doesn’t support vectorized evaluation of SQL functions and expressions. This project want to cover this by adding...
Optimize GROUP BY in MariaDB ColumnStore
phoeinx
This project optimized the GROUP BY operator in MariaDB ColumnStore for workloads requiring disk-based aggregation. To achieve this a) unnecessary...
JIT compiled SQL expressions
Xie Qijun
MCS uses interepreted execution to calculate SQL expressions results. Here is an example of a SQL expression 'table1.col1 + FLOOR(table2.col1)'....