Struct FunctionRegistry 

pub struct FunctionRegistry { /* private fields */ }

Function registry for SQL functions

Implementations

impl FunctionRegistry

pub fn register<F>(&mut self, name: &str, func: F)

where F: Fn(&[FunctionArg]) -> QueryResult<FunctionArg> + Send + Sync + 'static,

Register a new function

pub fn call(&self, name: &str, args: &[FunctionArg]) -> QueryResult<FunctionArg>

Call a function by name

pub fn has_function(&self, name: &str) -> bool

Check if a function exists

Trait Implementations

impl Default for FunctionRegistry

fn default() -> Self

Returns the “default value” for a type.