Intermediate

Contents:

• Aggregation using Algebird Aggregators
  • Count
  • Sum
  • Max
  • Min
  • AVG
  • Distinct
  • Top K
  • Composing Aggregators
• SQL to Scalding
  • Motivation
  • Create datasets
  • Simple Count
  • Count distinct
  • Count, Count distinct, Sum in one query
  • Where
  • Order by X, Y limit N
  • Union
  • Group and Aggregate
  • Join
  • Histogram, Ntile
  • TODO