v0.2.0

Implement Aggregates

• Basic Aggregates

  • star_count
  • single_column
  • single_column distinct

• Numeric Aggregates:

  • sum
  • avg
  • max
  • min
  • stddev
  • stddev_samp
  • stddev_pop
  • variance
  • var_samp
  • var_pop

• String Aggregates:

  • group_concat
  • group_concat_distinct
  • group_concat_include_nulls

• Previously, LIKE would automatically wrap the string with %% to do a full-text search, now we allow users to use % on their own so LIKE has full functionality.

• Add BigDecimal scalar type for arbitrary precision decimals so aggregation functions like SUM don't overflow