Author Archives: Sergey Petrunia
If you ever had to do query performance troubleshooting with MariaDB, you should be
familiar with MariaDB’s ANALYZE for statements feature. It does what EXPLAIN ANALYZE does in some other database systems: ANALYZE query runs the query and produces EXPLAIN output, amended with the data from the query execution:
FROM orders, customer
customer.c_custkey = orders.o_custkey AND
customer.c_acctbal < 0 AND
orders.o_totalprice > 200*1000
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | r_rows | filtered | r_filtered | Extra |
| 1 | SIMPLE | customer | ALL | PRIMARY,…
Continue reading “10.9 preview feature: SHOW ANALYZE and EXPLAIN FOR CONNECTION support”
We’re pleased to announce the first preview version of the Cassandra Storage Engine!
The Cassandra Storage Engine (SE) allows access to Cassandra databases from MariaDB/MySQL, and to provide data integration between the SQL and NoSQL worlds.
Have you ever needed to
- grab some of Cassandra’s data from your web frontend, or SQL query?
- insert a few records into Cassandra from some part of your app?
With Cassandra SE, this is easily possible. Cassandra SE makes Cassandra’s column families appear as MariaDB/MySQL tables that you can insert to, update, and select from. …