v4.4.0

Changes from v4.3.0:

• Add array constructor argument to table columnArray() method.
• Update dependencies, including Apache Arrow v4. (thanks @domoritz!)

v4.3.0

Changes from v4.2.0:

• Add rename() verb.

v4.2.0

Changes from v4.1.4:

• Add step option to aq.bin helper function.
• Add step argument to op.bins aggregate function.
• Fix op functions to properly handle null-valued inputs.
• Add test cases for op functions.

v4.1.4

Changes from v4.1.3:

• Fix hash join lookup table regression.

v4.1.3

Changes from v4.1.2:

• Add hash-join support to optimize semijoin() and antijoin().
• Refactor join utilities.

v4.1.2

Changes from v4.1.1:

• Fix ordered aggregate scan. (#133)

v4.1.1

Changes from v4.1.0:

• Update aggregate calculations to be sensitive to orderby() criteria.

v4.1.0

Changes from v4.0.0:

• Add grouped option for table.objects() method to export nested data. (thanks @lsh!)
• Add shuffle option for the sample() verb. All sampled tables are now shuffled by default.
• Add op.parse_json and op.to_json functions for wrangling JSON string data.
• Add op.map_agg and op.entries_agg aggregate functions, similar to the existing op.object_agg.
• Add columns option for table.objects and table.print output.
• Update table.get(column, row) to default to row index 0 if row is unspecified.
• Update aggregate value collector to avoid unnecessary array copies.
• Fix table expression code generation for computed object keys ({['a'+'b']: 'c'}).
• Fix aq.table() bug with Map input.

v4.0.0

Changes from v3.0.0:

• (Breaking Change) Add op.array_agg aggregation function, remove prior op.values definition .
• (Breaking Change) Add op.array_agg_distinct aggregation function, remove prior op.unique definition.
• Add op.object_agg aggregate function.
• Add op.greatest and op.least functions, corresponding to Math.max and Math.min.
• Add op.compact function to filter invalid values from an array.
• Add support for Map and Set instances to op.has(), op.keys(), and op.values().
• Add op.entries() function, with support for Object, Map, and Set instances.
• Add table columnArray() method.
• Update parser to rewrite Math.max and Math.min to use greatest and least.
• Fix dedupe() to produce ungrouped tables.

v3.0.0

Summary:

• (Breaking Change) Update table getter methods to respect filter and orderby.
• Add the arquero-arrow package into the core Arquero package.
• Add file loading methods for URLs and local files.
• Update build system to use separate node.js and browser builds.

Changes from v2.3.0:

• Breaking: Update table get() and getter() to respect filter and orderby settings.
• Add load(), loadArrow(), loadCSV(), and loadJSON() file loading methods.
• Add table toArrow() method.
• Add table toArrowBuffer() method.
• Add top-level toArrow() method that encodes either Arquero tables or arrays-of-objects.
• Add top-level Type object to export Arrow type ids.
• Add table size property, which matches numRows(). (thanks @mbostock!)
• Update fromArrow() to also support Arrow buffer byte array input.
• Update fromJSON() for consistent auto-typing and to improve performance.
• Fix table reify() bug for Arrow columns with null values. (See also #99)
• Split node.js and browser builds.
• Add tests.