Francois Saint-Jacques created ARROW-4776: ---------------------------------------------
Summary: [C++] DictionaryBuilder should support bootstrapping from an existing dict type Key: ARROW-4776 URL: https://issues.apache.org/jira/browse/ARROW-4776 Project: Apache Arrow Issue Type: Improvement Components: C++ Reporter: Francois Saint-Jacques This would mean adding a new DictionaryBuilder constructor that receives a dictionary type and performs a lazy deep copy if there's any modification. We'll have to investigate how this translate in API ergonomics. -- This message was sent by Atlassian JIRA (v7.6.3#76005)