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ptaylorBrian Hulette
71deb04536b
ptaylor authored and Brian Hulette committed 40fcebea191
ARROW-5537: [JS] Support delta dictionaries in RecordBatchWriter and DictionaryBuilder

Adds support for building and writing delta dictionaries. Moves the `dictionary` Vector pointer to the Data class, similar to https://github.com/apache/arrow/pull/4316.

Forked from  https://github.com/apache/arrow/pull/4476 since this adds support for delta dictionaries to the DictionaryBuilder. Will rebase this PR after that's merged. All the work is in the last commit, here: https://github.com/apache/arrow/commit/b12d842ebe1b341b2b0c67525bcf3f85ea88fecd

Author: ptaylor <paul.e.taylor@me.com>

Closes #4502 from trxcllnt/js/delta-dictionaries and squashes the following commits:

6a70a25bd <ptaylor> make dictionarybuilder and recordbatchwriter support delta dictionaries