Function lineage 

pub fn lineage(
    column: &str,
    statement: &Statement,
    schema: &MappingSchema,
    config: &LineageConfig,
) -> LineageResult<LineageGraph>

Build lineage for a specific output column in a SQL statement.

Arguments

• column - The name of the output column to trace (can include table qualifier).
• statement - The parsed SQL statement.
• schema - Schema information for table/column resolution.
• config - Configuration options.

Returns

A LineageGraph rooted at the target column, showing its upstream lineage.

Errors

Returns LineageError::ColumnNotFound if the column is not in the output.

Example

use sqlglot_rust::parser::parse;
use sqlglot_rust::dialects::Dialect;
use sqlglot_rust::optimizer::lineage::{lineage, LineageConfig};
use sqlglot_rust::schema::MappingSchema;

let sql = "SELECT a, b AS c FROM t";
let ast = parse(sql, Dialect::Ansi).unwrap();
let schema = MappingSchema::new(Dialect::Ansi);
let config = LineageConfig::default();

let graph = lineage("c", &ast, &schema, &config).unwrap();
assert_eq!(graph.node.name, "c");