Struct datafusion_expr::logical_plan::CreateExternalTable

pub struct CreateExternalTable {

    pub schema: DFSchemaRef,
    pub name: OwnedTableReference,
    pub location: String,
    pub file_type: String,
    pub has_header: bool,
    pub delimiter: char,
    pub table_partition_cols: Vec<String>,
    pub if_not_exists: bool,
    pub definition: Option<String>,
    pub order_exprs: Vec<Vec<Expr>>,
    pub file_compression_type: CompressionTypeVariant,
    pub unbounded: bool,
    pub options: HashMap<String, String>,
    pub constraints: Constraints,
    pub column_defaults: HashMap<String, Expr>,
}

Creates an external table.

Fields

schema: DFSchemaRef

The table schema

name: OwnedTableReference

The table name

location: String

The physical location

file_type: String

The file type of physical file

has_header: bool

Whether the CSV file contains a header

delimiter: char

Delimiter for CSV

table_partition_cols: Vec<String>

Partition Columns

if_not_exists: bool

Option to not error if table already exists

definition: Option<String>

SQL used to create the table, if available

order_exprs: Vec<Vec<Expr>>

Order expressions supplied by user

file_compression_type: CompressionTypeVariant

File compression type (GZIP, BZIP2, XZ, ZSTD)

unbounded: bool

Whether the table is an infinite streams

options: HashMap<String, String>

Table(provider) specific options

constraints: Constraints

The list of constraints in the schema, such as primary key, unique, etc.

column_defaults: HashMap<String, Expr>

Default values for columns

Trait Implementations

impl Clone for CreateExternalTable

fn clone(&self) -> CreateExternalTable

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Hash for CreateExternalTable

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 for CreateExternalTable

fn eq(&self, other: &CreateExternalTable) -> 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 CreateExternalTable

impl StructuralEq for CreateExternalTable

impl StructuralPartialEq for CreateExternalTable