Ben
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Activity overview
Latest activity by Ben-
Ben created an article,
Migrating metadata from Postgres to MySQL
OBJECTIVE: To migrate the metadata database from Postgres to MySQL. ADDITIONAL INFORMATION: This article is specifically about migrating metadata from Postgres to MySQL. Overall steps for mi...
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Ben created an article,
Getting exact count(distinct) results, using druid SQL
OBJECTIVE: To get exact count(distinct) results using druid SQL. ADDITIONAL INFORMATION: It's very difficult to get exact count(distinct) results in distributed databases, including druid (and us...
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Ben created an article,
Using single-dimension partitioning to improve read performance
OBJECTIVE: Use single-dimension partition to improve query performance for certain queries. (Queries which filter on that dimension.) ADDITIONAL INFORMATION: In some cases, it can be helpful to ha...