Bool8 represents a boolean value using 1 byte (8 bits) to store each value instead of only 1 bit as in the original Arrow Boolean type. Although less compact than the original representation, Bool8 may have better zero-copy compatibility with various systems that also store booleans using 1 byte.
Extension name: arrow.bool8.
The storage type of this extension is Int8 where:
false is denoted by the value 0.
true can be specified using any non-zero value. Preferably 1.
Extension type parameters: This type does not have any parameters.
Description of the serialization: Metadata is an empty string.
Impls:
[x] Test that bool can serialized / deserialized into I8 arrays
[x] Test that any non-zero value is deserialized as true
[x] Implement extension type
[x] Add docs how to use the extension type with overwrites
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Details from the PR defining the extension type:
Impls:
boolcan serialized / deserialized intoI8arraystrue