Grant Monroe created ARROW-7777:
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Summary: [Go] StructBuilder/ListBuilder index out of range panic
Key: ARROW-7777
URL: https://issues.apache.org/jira/browse/ARROW-7777
Project: Apache Arrow
Issue Type: Bug
Components: Go
Affects Versions: 0.16.0
Environment: linux
Reporter: Grant Monroe
Both StructBuilder and ListBuilder improperly call init() on sub-builders when
they should be calling Reserve. For ListBuilder this occurs on the offsets
builder. For StructBuilder it occurs on each of the field builders. This
results in a panic from index out of range on Append.
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