Examples with SqlMonotonicBinaryOperator org.apache.calcite.sql.fun.SqlMonotonicBinaryOperator used on opensource projects

Example 1 with SqlMonotonicBinaryOperator

use of org.apache.calcite.sql.fun.SqlMonotonicBinaryOperator in project hive by apache.

the class SqlFunctionConverter method getCalciteFn.

public static SqlOperator getCalciteFn(String hiveUdfName, ImmutableList<RelDataType> calciteArgTypes, RelDataType calciteRetType, boolean deterministic, boolean dynamicFunction) throws CalciteSemanticException {
    if (hiveUdfName != null && hiveUdfName.trim().equals("<=>")) {
        // this.So, bail out for now.
        throw new CalciteSemanticException("<=> is not yet supported for cbo.", UnsupportedFeature.Less_than_equal_greater_than);
    }
    SqlOperator calciteOp;
    CalciteUDFInfo uInf = getUDFInfo(hiveUdfName, calciteArgTypes, calciteRetType);
    switch(hiveUdfName) {
        // TODO: Perhaps we should do this for all functions, not just +,-
        case "-":
            calciteOp = new SqlMonotonicBinaryOperator("-", SqlKind.MINUS, 40, true, uInf.returnTypeInference, uInf.operandTypeInference, OperandTypes.MINUS_OPERATOR);
            break;
        case "+":
            calciteOp = new SqlMonotonicBinaryOperator("+", SqlKind.PLUS, 40, true, uInf.returnTypeInference, uInf.operandTypeInference, OperandTypes.PLUS_OPERATOR);
            break;
        default:
            calciteOp = hiveToCalcite.get(hiveUdfName);
            if (null == calciteOp) {
                calciteOp = new CalciteSqlFn(uInf.udfName, SqlKind.OTHER_FUNCTION, uInf.returnTypeInference, uInf.operandTypeInference, uInf.operandTypeChecker, SqlFunctionCategory.USER_DEFINED_FUNCTION, deterministic, dynamicFunction);
            }
            break;
    }
    return calciteOp;
}