Function alter_index_statement

graphlite/src/ast/parser.rs:4943–4978

Parse ALTER INDEX statement

(tokens: &[Token])

/// Parse ALTER INDEX statement
fn alter_index_statement(tokens: &[Token]) -> IResult<&[Token], AlterIndexStatement> {
    let (tokens, _) = expect_token(Token::Alter)(tokens)?;
    let (tokens, _) = expect_identifier("INDEX")(tokens)?;

    // Parse index name
    let (tokens, name) = identifier(tokens)?;

    // Parse operation
    let (tokens, operation) = alt((
        map(expect_identifier("REBUILD"), |_| {
            AlterIndexOperation::Rebuild
        }),
        map(expect_identifier("OPTIMIZE"), |_| {
            AlterIndexOperation::Optimize
        }),
        map(
            preceded(
                tuple((expect_identifier("SET"), expect_identifier("OPTION"))),
                tuple((
                    identifier,
                    preceded(expect_token(Token::Equal), parse_value),
                )),
            ),
            |(key, value)| AlterIndexOperation::SetOption(key, value),
        ),
    ))(tokens)?;

    Ok((
        tokens,
        AlterIndexStatement {
            name,
            operation,
            location: Location::default(),
        },
    ))
}

/// Parse OPTIMIZE INDEX statement
fn optimize_index_statement(tokens: &[Token]) -> IResult<&[Token], OptimizeIndexStatement> {