Enum DataType

Source

pub enum DataType {
Show 38 variants    Boolean,
    TinyInt {
        length: Option<u32>,
    },
    SmallInt {
        length: Option<u32>,
    },
    Int {
        length: Option<u32>,
        integer_spelling: bool,
    },
    BigInt {
        length: Option<u32>,
    },
    Float {
        precision: Option<u32>,
        scale: Option<u32>,
        real_spelling: bool,
    },
    Double {
        precision: Option<u32>,
        scale: Option<u32>,
    },
    Decimal {
        precision: Option<u32>,
        scale: Option<u32>,
    },
    Char {
        length: Option<u32>,
    },
    VarChar {
        length: Option<u32>,
        parenthesized_length: bool,
    },
    String {
        length: Option<u32>,
    },
    Text,
    Binary {
        length: Option<u32>,
    },
    VarBinary {
        length: Option<u32>,
    },
    Blob,
    Bit {
        length: Option<u32>,
    },
    VarBit {
        length: Option<u32>,
    },
    Date,
    Time {
        precision: Option<u32>,
        timezone: bool,
    },
    Timestamp {
        precision: Option<u32>,
        timezone: bool,
    },
    Interval {
        unit: Option<String>,
        to: Option<String>,
    },
    Json,
    JsonB,
    Uuid,
    Array {
        element_type: Box<DataType>,
        dimension: Option<u32>,
    },
    List {
        element_type: Box<DataType>,
    },
    Struct {
        fields: Vec<StructField>,
        nested: bool,
    },
    Map {
        key_type: Box<DataType>,
        value_type: Box<DataType>,
    },
    Enum {
        values: Vec<String>,
        assignments: Vec<Option<String>>,
    },
    Set {
        values: Vec<String>,
    },
    Union {
        fields: Vec<(String, DataType)>,
    },
    Vector {
        element_type: Option<Box<DataType>>,
        dimension: Option<u32>,
    },
    Object {
        fields: Vec<(String, DataType, bool)>,
        modifier: Option<String>,
    },
    Custom {
        name: String,
    },
    Geometry {
        subtype: Option<String>,
        srid: Option<u32>,
    },
    Geography {
        subtype: Option<String>,
        srid: Option<u32>,
    },
    CharacterSet {
        name: String,
    },
    Unknown,
}

Expand description

Enumerate all SQL data types recognized by the parser.

Covers standard SQL types (BOOLEAN, INT, VARCHAR, TIMESTAMP, etc.) as well as dialect-specific types (JSONB, VECTOR, OBJECT, etc.). Parametric types like ARRAY, MAP, and STRUCT are represented with nested DataType fields.

This enum is used in CAST expressions, column definitions, function return types, and anywhere a data type specification appears in SQL.

Types that do not match any known variant fall through to Custom { name }, preserving the original type name for round-trip fidelity.

Variants§

§

Boolean

§

TinyInt

Fields

§length: Option<u32>

§

SmallInt

Fields

§length: Option<u32>

§

Int

Int type with optional length. integer_spelling indicates whether the original type was spelled as INTEGER (true) vs INT (false), used for certain dialects like Databricks that preserve the original spelling in specific contexts (e.g., ?:: syntax).

Fields

§length: Option<u32>

§integer_spelling: bool

§

BigInt

Fields

§length: Option<u32>

§

Float

Float type with optional precision and scale. real_spelling indicates whether the original type was spelled as REAL (true) vs FLOAT (false), used for dialects like Redshift that preserve the original spelling.

Fields

§precision: Option<u32>

§scale: Option<u32>

§real_spelling: bool

§

Double

Fields

§precision: Option<u32>

§scale: Option<u32>

§

Decimal

Fields

§precision: Option<u32>

§scale: Option<u32>

§

Char

Fields

§length: Option<u32>

§

VarChar

VarChar type with optional length. parenthesized_length indicates whether the length was wrapped in extra parentheses (Hive: VARCHAR((50)) inside STRUCT definitions).