Type Alias PbDataType 

pub type PbDataType = DataType;

Aliased Type

pub struct PbDataType {
    pub type_name: i32,
    pub precision: u32,
    pub scale: u32,
    pub is_nullable: bool,
    pub interval_type: i32,
    pub field_type: Vec<DataType>,
    pub field_names: Vec<String>,
    pub field_ids: Vec<i32>,
}

Fields

type_name: i32

precision: u32

Data length for vector. Max data length for varchar. Precision for time, decimal.

scale: u32

Scale for decimal.

is_nullable: bool

interval_type: i32

field_type: Vec<DataType>

For struct type, it represents all the fields in the struct. For list type it only contains 1 element which is the inner item type of the List. For example, ARRAY<INTEGER> will be represented as vec!\[DataType::Int32\].

field_names: Vec<String>

Name of the fields if it is a struct type. For other types it will be empty.

field_ids: Vec<i32>

Id of the fields if it is a struct type. Used in serialization for nested-schema evolution purposes.

Empty if either:

• it is not a struct type
• it is not within a table schema (ColumnDesc)
• it was persisted in an old version.