Examples with MULTIPLY io.trino.spi.function.OperatorType.MULTIPLY used on opensource projects

Example 1 with MULTIPLY

use of io.trino.spi.function.OperatorType.MULTIPLY in project trino by trinodb.

the class DecimalOperators method decimalMultiplyOperator.

private static SqlScalarFunction decimalMultiplyOperator() {
    TypeSignature decimalLeftSignature = new TypeSignature("decimal", typeVariable("a_precision"), typeVariable("a_scale"));
    TypeSignature decimalRightSignature = new TypeSignature("decimal", typeVariable("b_precision"), typeVariable("b_scale"));
    TypeSignature decimalResultSignature = new TypeSignature("decimal", typeVariable("r_precision"), typeVariable("r_scale"));
    Signature signature = Signature.builder().operatorType(MULTIPLY).longVariableConstraints(longVariableExpression("r_precision", "min(38, a_precision + b_precision)"), longVariableExpression("r_scale", "a_scale + b_scale")).argumentTypes(decimalLeftSignature, decimalRightSignature).returnType(decimalResultSignature).build();
    return new PolymorphicScalarFunctionBuilder(DecimalOperators.class).signature(signature).deterministic(true).choice(choice -> choice.implementation(methodsGroup -> methodsGroup.methods("multiplyShortShortShort", "multiplyShortShortLong", "multiplyLongLongLong", "multiplyShortLongLong", "multiplyLongShortLong"))).build();
}