createSetOperator() — drizzle-orm Function Reference

Architecture documentation for the createSetOperator() function in select.ts from the drizzle-orm codebase.

Function typescript DrizzleORM QueryBuilders

Entity Profile

DrizzleORM→ QueryBuilders→ createSetOperator() — drizzle-orm Function Reference

Dependency Diagram

graph TD
  796b574a_0130_41ca_fb07_385dd5a08271["createSetOperator()"]
  eddab78d_59a6_c51b_6a1e_6cd2989d2bc3["select.ts"]
  796b574a_0130_41ca_fb07_385dd5a08271 -->|defined in| eddab78d_59a6_c51b_6a1e_6cd2989d2bc3
  style 796b574a_0130_41ca_fb07_385dd5a08271 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

drizzle-orm/src/singlestore-core/query-builders/select.ts lines 1031–1049

function createSetOperator(type: SetOperator, isAll: boolean): SingleStoreCreateSetOperatorFn {
	return (leftSelect, rightSelect, ...restSelects) => {
		const setOperators = [rightSelect, ...restSelects].map((select) => ({
			type,
			isAll,
			rightSelect: select as AnySingleStoreSelect,
		}));

		for (const setOperator of setOperators) {
			if (!haveSameKeys((leftSelect as any).getSelectedFields(), setOperator.rightSelect.getSelectedFields())) {
				throw new Error(
					'Set operator error (union / intersect / except): selected fields are not the same or are in a different order',
				);
			}
		}

		return (leftSelect as AnySingleStoreSelect).addSetOperators(setOperators) as any;
	};
}