use super::IndexDefinition;
use crate::{ast::IndexKey, schema::dependencies::schema_expr_references_column};
pub fn index_definition(definition: Option<&str>) -> Result<IndexDefinition, serde_json::Error> {
definition.map_or_else(|| Ok(IndexDefinition::default()), serde_json::from_str)
}
pub fn references_column(
keys: &str,
definition: Option<&str>,
column: &str,
) -> Result<bool, serde_json::Error> {
let keys: Vec<IndexKey> = serde_json::from_str(keys)?;
Ok(keys
.iter()
.any(|key| schema_expr_references_column(&key.expression(), column))
|| index_definition(definition)?
.included_columns
.iter()
.any(|name| name == column)
|| index_definition(definition)?
.predicate
.as_deref()
.is_some_and(|expression| schema_expr_references_column(expression, column)))
}