Function pg_query::deparse

pub fn deparse(protobuf: &ParseResult) -> Result<String>

Converts a parsed tree back into a string.

Example

use pg_query::{Node, NodeEnum, NodeRef};

let result = pg_query::parse("INSERT INTO other (name) SELECT name FROM contacts");
let result = result.unwrap();
let insert = result.protobuf.nodes()[0].0;
let select = result.protobuf.nodes()[1].0;
assert!(matches!(insert, NodeRef::InsertStmt(_)));
assert!(matches!(select, NodeRef::SelectStmt(_)));

// The entire parse result can be deparsed:
assert_eq!(result.deparse().unwrap(), "INSERT INTO other (name) SELECT name FROM contacts");
// Or an individual node can be deparsed:
assert_eq!(insert.deparse().unwrap(), "INSERT INTO other (name) SELECT name FROM contacts");
assert_eq!(select.deparse().unwrap(), "SELECT name FROM contacts");

Note that this function will panic if called on a node not defined in deparseStmt