buildSetOperations() — drizzle-orm Function Reference

Architecture documentation for the buildSetOperations() function in dialect.ts from the drizzle-orm codebase.

Function typescript DrizzleORM SQLDialects calls 1 called by 1

Entity Profile

DrizzleORM→ SQLDialects→ buildSetOperations() — drizzle-orm Function Reference

Dependency Diagram

graph TD
  3da984c5_cedc_6ee4_6ea2_52428870cfec["buildSetOperations()"]
  9c5eee4c_4b78_a585_4038_d710de212097["MySqlDialect"]
  3da984c5_cedc_6ee4_6ea2_52428870cfec -->|defined in| 9c5eee4c_4b78_a585_4038_d710de212097
  8ae83588_d5c3_3834_94e9_82ba6770d1a1["buildSelectQuery()"]
  8ae83588_d5c3_3834_94e9_82ba6770d1a1 -->|calls| 3da984c5_cedc_6ee4_6ea2_52428870cfec
  86302f6e_1e27_c030_415e_a06b92a0e3f1["buildSetOperationQuery()"]
  3da984c5_cedc_6ee4_6ea2_52428870cfec -->|calls| 86302f6e_1e27_c030_415e_a06b92a0e3f1
  style 3da984c5_cedc_6ee4_6ea2_52428870cfec fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

drizzle-orm/src/mysql-core/dialect.ts lines 430–446

	buildSetOperations(leftSelect: SQL, setOperators: MySqlSelectConfig['setOperators']): SQL {
		const [setOperator, ...rest] = setOperators;

		if (!setOperator) {
			throw new Error('Cannot pass undefined values to any set operator');
		}

		if (rest.length === 0) {
			return this.buildSetOperationQuery({ leftSelect, setOperator });
		}

		// Some recursive magic here
		return this.buildSetOperations(
			this.buildSetOperationQuery({ leftSelect, setOperator }),
			rest,
		);
	}