Struct datafusion_common::file_options::StatementOptions

pub struct StatementOptions { /* private fields */ }

Represents arbitrary tuples of options passed as String tuples from SQL statements. As in the following statement: COPY … TO … (setting1 value1, setting2 value2, …)

Implementations

impl StatementOptions

pub fn new(options: Vec<OptionTuple>) -> Self

pub fn into_inner(self) -> Vec<OptionTuple>

pub fn take_bool_option(&mut self, find: &str) -> Result<Option<bool>>

Scans for option and if it exists removes it and attempts to parse as a boolean Returns none if it does not exist.

pub fn take_str_option(&mut self, find: &str) -> Option<String>

Scans for option and if it exists removes it and returns it Returns none if it does not exist

pub fn try_infer_file_type(&mut self, target: &str) -> Result<FileType>

Infers the file_type given a target and arbitrary options. If the options contain an explicit “format” option, that will be used. Otherwise, attempt to infer file_type from the extension of target. Finally, return an error if unable to determine the file_type If found, format is removed from the options list.

Trait Implementations

impl Clone for StatementOptions

fn clone(&self) -> StatementOptions

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StatementOptions

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl From<&HashMap<String, String, RandomState>> for StatementOptions

Useful for conversion from external tables which use Hashmap<String, String>

fn from(value: &HashMap<String, String>) -> Self

Converts to this type from the input type.

impl Hash for StatementOptions

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq<StatementOptions> for StatementOptions

fn eq(&self, other: &StatementOptions) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for StatementOptions

impl StructuralEq for StatementOptions

impl StructuralPartialEq for StatementOptions