v2.1.3

Changes from v2.1.2:

• Fix expression parser to evaluate non-literal column reference expressions. (#74)

v2.1.2

Changes from v2.1.1:

• Update JSDoc comments and improve generated TypeScript typings.
• Update Table API docs.
• Fix table iterator filter check bug.

v2.1.1

Changes from v2.1.0:

• Fix JSDoc comments for table() method. (thanks @vsimko!)

v2.1.0

Changes from v2.0.0:

• Add index argument to op.match().
• Fix table indices() to properly handle order argument.
• Fix fromJSON() auto-type parsing of integer strings.
• Fix fromArrow() handling of FixedSizeList columns.

v2.0.0

Changes from v1.3.1:

• Breaking: Add schema metadata to fromJSON() and toJSON().
• Breaking: Add drop option to spread() verb to drop input columns, set default to true.
• Breaking: Revise spread() to use undefined for missing values.
• Breaking: Revise spread() to use _ separator between column name and index number in auto-generated names.
• Breaking: Revise spread() to use the length of the as option as an implicit limit when limit is unspecified.
• Breaking: Revise pivot() to place value name before key name when multiple values are specified.
• Breaking: Consolidate internal Query and QueryBuilder classes.
• Add impute() verb.
• Add column reference checks to pivot() and rollup().
• Add more flexible join key specification for lookup().
• Update sample() weight calculation to drop unneeded columns.
• Update verb JSDoc comments / TypeScript types.
• Fix input type checks for sequence op functions.
• Fix code generation for safer output.
• Refactor: Expose row_number op for internal use.
• Refactor: Update expression parser error messages.
• Refactor: Add Transformable base class for both Table and Query.
• Refactor: Update ColumnTable constructor.

v1.3.1

Changes from v1.3.0:

• Fix reify() to persist column name order.
• Fix rollup() to handle empty input. (#64)
• Fix distinct aggregate to use standard key function.
• Refactor: Use op methods internally.
• Refactor: Refine concat() early exit criteria.
• Refactor: Refine dedupe() implementation.
• Refactor: Use aggregate result arrays, not objects.
• Clean JSDoc for optional options.

v1.3.0

Changes from v1.2.3:

• Add fill_down and fill_up window functions.
• Add boolean drop option to derive() verb to drop original columns and retain derived columns only.
• Add support for pre-filtered Apache Arrow tables.
• Add flexible column selection for Apache Arrow import.
• Add TypeScript types to build output, compiled from JSDoc comments. (thanks @dworthen!)
• Fix internal column name handling to properly order integer-named columns.
• Fix op.match to use the proper string match method.
• Fix JSDoc types to use object, not Object.

v1.2.3

Changes from v1.2.2:

• Consistently handle empty/null input to non-count aggregates, return undefined.
• Handle undefined input to toString().

v1.2.2

Changes from v1.2.1:

• Fix extraction of nested null values in fromArrow().

v1.2.1

Changes from v1.2.0:

• Fix relocate() logic bug.