Struct ExternalTable 

pub struct ExternalTable {
    pub name: String,
    pub data: Block,
}

External table for JOIN operations

External tables allow passing temporary in-memory data to queries for JOINs without creating actual tables in ClickHouse.

Example

// Create a block with temporary data
let mut block = Block::new();
// ... populate block with data ...

// Create external table
let ext_table = ExternalTable {
    name: "temp_table".to_string(),
    data: block,
};

// Use in query with JOIN
let query = "SELECT * FROM my_table JOIN temp_table ON my_table.id = temp_table.id";
// client.select_with_external_data(query, vec![ext_table]).await?;

Fields

name: String

Name of the temporary table (used in SQL query)

data: Block

Data block containing the table data

Implementations

impl ExternalTable

pub fn new(name: impl Into<String>, data: Block) -> Self

Create a new external table

Trait Implementations

impl Clone for ExternalTable

fn clone(&self) -> ExternalTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.