Struct VarCharDataType 

pub struct VarCharDataType {
    pub max_length: Option<u32>,
    pub encoding: StringEncoding,
}

Variable-length character string with optional max length.

Maps to: VARCHAR(n) (PostgreSQL, SQL Server, Snowflake), STRING (Databricks, ClickHouse).

Example

use razeri_plugin_contract::data_type::{VarCharDataType, StringEncoding};

// Fixed max length
let varchar = VarCharDataType::new(255);
assert_eq!(varchar.max_length, Some(255));

// Unlimited length (TEXT/VARCHAR(MAX)/STRING)
let text = VarCharDataType::unlimited();
assert_eq!(text.max_length, None);

// Explicit ASCII encoding
let ascii = VarCharDataType::with_encoding(Some(100), StringEncoding::Ascii);

Fields

max_length: Option<u32>

Maximum length in characters (None = unlimited/MAX).

Platform limits:

• PostgreSQL: up to 10,485,760
• SQL Server: up to 8,000 (or MAX)
• Snowflake: up to 16,777,216
• ClickHouse: unlimited

encoding: StringEncoding

Character encoding (default: Unicode).

Implementations

impl VarCharDataType

pub fn new(max_length: u32) -> Self

Creates a VARCHAR with specified max length.

Example

use razeri_plugin_contract::data_type::VarCharDataType;

let varchar = VarCharDataType::new(100);
assert_eq!(varchar.max_length, Some(100));

pub fn unlimited() -> Self

Creates an unlimited length text type (VARCHAR(MAX), TEXT, STRING).

Example

use razeri_plugin_contract::data_type::VarCharDataType;

let text = VarCharDataType::unlimited();
assert_eq!(text.max_length, None);

pub fn with_encoding(max_length: Option<u32>, encoding: StringEncoding) -> Self

Creates a VARCHAR with the specified length and encoding.

Example

use razeri_plugin_contract::data_type::{VarCharDataType, StringEncoding};

let ascii = VarCharDataType::with_encoding(Some(50), StringEncoding::Ascii);
assert_eq!(ascii.max_length, Some(50));
assert_eq!(ascii.encoding, StringEncoding::Ascii);

Trait Implementations

impl Clone for VarCharDataType

fn clone(&self) -> VarCharDataType

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for VarCharDataType

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for VarCharDataType

impl Hash for VarCharDataType

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for VarCharDataType

fn eq(&self, other: &VarCharDataType) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for VarCharDataType