@qrvey/formula-lang
Version:
QFormula support for qrvey projects
53 lines • 1.43 kB
JavaScript
import { AST_PRIMITIVES } from '../constants';
import { isStringParam } from '../utils';
/**
* `CONCATENATE` Joins two or more strings into one string.
*/
export const CONCATENATE = {
identifier: 'CONCATENATE',
recursiveStartIn: 1,
parameters: [
{
identifier: 'STRING_1',
optional: false,
expectedPrimitive: AST_PRIMITIVES.STRING,
validator: [isStringParam],
},
{
identifier: 'STRING_2',
optional: false,
expectedPrimitive: AST_PRIMITIVES.STRING,
validator: [isStringParam],
},
{
identifier: 'STRING_N',
optional: true,
expectedPrimitive: AST_PRIMITIVES.STRING,
validator: [isStringParam],
},
],
transpiler: {
elasticsearch,
snowflake,
redshift,
postgresql,
},
primitiveResult: AST_PRIMITIVES.STRING,
};
function elasticsearch(...args) {
return `(${args.join(' + ')})`;
}
function sql(...args) {
return `CONCAT(${args.join(', ')})`;
}
function snowflake(...args) {
return sql(...args);
}
// Redshift also support CONCAT function but when the string to concatenate is a space only thrown an error
function redshift(...args) {
return `(${args.join(' || ')})`;
}
function postgresql(...args) {
return sql(...args);
}
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