Enum datafusion::sqlast::ASTNode

pub enum ASTNode {
    SQLIdentifier(String),
    SQLWildcard,
    SQLCompoundIdentifier(Vec<String>),
    SQLBinaryExpr {
        left: Box<ASTNode>,
        op: SQLOperator,
        right: Box<ASTNode>,
    },
    SQLCast {
        expr: Box<ASTNode>,
        data_type: SQLType,
    },
    SQLNested(Box<ASTNode>),
    SQLUnary {
        operator: SQLOperator,
        rex: Box<ASTNode>,
    },
    SQLLiteralLong(i64),
    SQLLiteralDouble(f64),
    SQLLiteralString(String),
    SQLFunction {
        id: String,
        args: Vec<ASTNode>,
    },
    SQLOrderBy {
        expr: Box<ASTNode>,
        asc: bool,
    },
    SQLSelect {
        projection: Vec<ASTNode>,
        relation: Option<Box<ASTNode>>,
        selection: Option<Box<ASTNode>>,
        order_by: Option<Vec<ASTNode>>,
        group_by: Option<Vec<ASTNode>>,
        having: Option<Box<ASTNode>>,
        limit: Option<Box<ASTNode>>,
    },
    SQLCreateTable {
        name: String,
        columns: Vec<SQLColumnDef>,
        file_type: FileType,
        header_row: bool,
        location: String,
    },
}

SQL Abstract Syntax Tree (AST)

Variants

SQLIdentifier(String)SQLWildcardSQLCompoundIdentifier(Vec<String>)SQLBinaryExpr

Fields of SQLBinaryExpr

left: Box<ASTNode>
op: SQLOperator
right: Box<ASTNode>

SQLCast

Fields of SQLCast

expr: Box<ASTNode>
data_type: SQLType

SQLNested(Box<ASTNode>)SQLUnary

Fields of SQLUnary

operator: SQLOperator
rex: Box<ASTNode>

SQLLiteralLong(i64)SQLLiteralDouble(f64)SQLLiteralString(String)SQLFunction

Fields of SQLFunction

id: String
args: Vec<ASTNode>

SQLOrderBy

Fields of SQLOrderBy

expr: Box<ASTNode>
asc: bool

SQLSelect

Fields of SQLSelect

projection: Vec<ASTNode>
relation: Option<Box<ASTNode>>
selection: Option<Box<ASTNode>>
order_by: Option<Vec<ASTNode>>
group_by: Option<Vec<ASTNode>>
having: Option<Box<ASTNode>>
limit: Option<Box<ASTNode>>

SQLCreateTable

Fields of SQLCreateTable

name: String	Table name
columns: Vec<SQLColumnDef>	Optional schema
file_type: FileType	File type (CSV or Parquet)
header_row: bool	For CSV files, indicate whether the file has a header row or not
location: String	Path to file or directory contianing files

Trait Implementations

impl Debug for ASTNode

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

Formats the value using the given formatter.

impl Clone for ASTNode

fn clone(&self) -> ASTNode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for ASTNode

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

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

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

This method tests for !=.