export declare enum DataType {
    Number = "number",
    String = "string",
    Date = "date",
    Boolean = "boolean"
}
export declare enum ExpressionType {
    Number = "number",
    String = "string",
    Date = "date",
    Boolean = "boolean",
    FunctionCall = "function_call",
    Attribute = "attribute",
    ComputedField = "computed_field"
}
export type DataValueType = number | string | boolean;
export type FunctionType = 'equal' | 'notEqual' | 'gequal' | 'lequal' | 'and' | 'or' | 'lesser' | 'greater' | 'sum2' | 'sub2' | 'mul2' | 'div2' | 'concat' | 'substring' | 'lower' | 'upper' | 'if_' | 'pmt' | 'fv' | 'impt' | 'ppmt' | 'sum' | 'div' | 'sub' | 'mul' | 'avg' | 'wavg' | 'min' | 'max' | 'count' | 'isEmpty' | 'isNotEmpty' | 'startsWith' | 'endsWith' | 'contains' | 'isNull' | 'isNotNull' | 'in' | 'notIn' | 'between' | 'abs';
export { AtxFunc as FunctionInfo } from '../expressionParser/astFormatting';
interface BaseExpression {
    _type?: DataType;
    type: ExpressionType;
}
export interface AttributeExpression extends BaseExpression {
    type: ExpressionType.Attribute;
    from: string;
    on: string;
}
export type LiteralExpressionType = ExpressionType.Number | ExpressionType.String | ExpressionType.Date | ExpressionType.Boolean;
export interface LiteralExpression extends BaseExpression {
    type: LiteralExpressionType;
    value: DataValueType;
}
export interface FunctionExpression extends BaseExpression {
    type: ExpressionType.FunctionCall;
    value: string;
    on: Array<Expression>;
    isAggregate: boolean;
    expressionString?: string;
}
export interface ComputedFieldExpression extends BaseExpression {
    type: ExpressionType.ComputedField;
    computedFieldId: string;
}
export type Expression = AttributeExpression | LiteralExpression | FunctionExpression | ComputedFieldExpression;