Enum TableFunction 

pub enum TableFunction {
    ScanCsv {
        path: String,
    },
    ScanParquet {
        path: String,
    },
    ScanJson {
        path: String,
    },
    ListTables,
    ShowColumns {
        table_name: String,
    },
    CurrentSetting {
        key: String,
    },
    Custom {
        name: String,
    },
    CustomTable {
        name: String,
        execute: Arc<dyn Fn(&[Value], &mut DataChunk) -> Result<(), String> + Send + Sync>,
    },
}

All built-in table functions.

Variants

ScanCsv

Fields

path: String

ScanParquet

Fields

path: String

ScanJson

Fields

path: String

ListTables

ShowColumns

Fields

table_name: String

CurrentSetting

Fields

key: String

Custom

Extension-specific custom table function (tag-based, no callback). The name field identifies which custom function to execute.

Fields

name: String

CustomTable

Extension-provided table function with a callback closure. The closure receives input args and fills a mutable DataChunk.

Fields

name: String

execute: Arc<dyn Fn(&[Value], &mut DataChunk) -> Result<(), String> + Send + Sync>

Trait Implementations

impl Clone for TableFunction

fn clone(&self) -> TableFunction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableFunction

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

Formats the value using the given formatter.