Examples with SqlValidatorImpl org.apache.calcite.sql.validate.SqlValidatorImpl used on opensource projects

Example 1 with SqlValidatorImpl

use of org.apache.calcite.sql.validate.SqlValidatorImpl in project calcite by apache.

the class SqlCastFunction method inferReturnType.

// ~ Methods ----------------------------------------------------------------
public RelDataType inferReturnType(SqlOperatorBinding opBinding) {
    assert opBinding.getOperandCount() == 2;
    RelDataType ret = opBinding.getOperandType(1);
    RelDataType firstType = opBinding.getOperandType(0);
    ret = opBinding.getTypeFactory().createTypeWithNullability(ret, firstType.isNullable());
    if (opBinding instanceof SqlCallBinding) {
        SqlCallBinding callBinding = (SqlCallBinding) opBinding;
        SqlNode operand0 = callBinding.operand(0);
        // to them using the type they are casted to.
        if (((operand0 instanceof SqlLiteral) && (((SqlLiteral) operand0).getValue() == null)) || (operand0 instanceof SqlDynamicParam)) {
            final SqlValidatorImpl validator = (SqlValidatorImpl) callBinding.getValidator();
            validator.setValidatedNodeType(operand0, ret);
        }
    }
    return ret;
}

Example 2 with SqlValidatorImpl

use of org.apache.calcite.sql.validate.SqlValidatorImpl in project calcite by apache.

the class SqlOperatorBaseTest method testArgumentBounds.

/**
 * Test that calls all operators with all possible argument types, and for
 * each type, with a set of tricky values.
 */
@Test
public void testArgumentBounds() {
    if (!CalciteAssert.ENABLE_SLOW) {
        return;
    }
    final SqlValidatorImpl validator = (SqlValidatorImpl) tester.getValidator();
    final SqlValidatorScope scope = validator.getEmptyScope();
    final RelDataTypeFactory typeFactory = validator.getTypeFactory();
    final Builder builder = new Builder(typeFactory);
    builder.add0(SqlTypeName.BOOLEAN, true, false);
    builder.add0(SqlTypeName.TINYINT, 0, 1, -3, Byte.MAX_VALUE, Byte.MIN_VALUE);
    builder.add0(SqlTypeName.SMALLINT, 0, 1, -4, Short.MAX_VALUE, Short.MIN_VALUE);
    builder.add0(SqlTypeName.INTEGER, 0, 1, -2, Integer.MIN_VALUE, Integer.MAX_VALUE);
    builder.add0(SqlTypeName.BIGINT, 0, 1, -5, Integer.MAX_VALUE, Long.MAX_VALUE, Long.MIN_VALUE);
    builder.add1(SqlTypeName.VARCHAR, 11, "", " ", "hello world");
    builder.add1(SqlTypeName.CHAR, 5, "", "e", "hello");
    builder.add0(SqlTypeName.TIMESTAMP, 0L, DateTimeUtils.MILLIS_PER_DAY);
    for (SqlOperator op : SqlStdOperatorTable.instance().getOperatorList()) {
        switch(op.getKind()) {
            // can't handle the flag argument
            case TRIM:
            case EXISTS:
                continue;
        }
        switch(op.getSyntax()) {
            case SPECIAL:
                continue;
        }
        final SqlOperandTypeChecker typeChecker = op.getOperandTypeChecker();
        if (typeChecker == null) {
            continue;
        }
        final SqlOperandCountRange range = typeChecker.getOperandCountRange();
        for (int n = range.getMin(), max = range.getMax(); n <= max; n++) {
            final List<List<ValueType>> argValues = Collections.nCopies(n, builder.values);
            for (final List<ValueType> args : Linq4j.product(argValues)) {
                SqlNodeList nodeList = new SqlNodeList(SqlParserPos.ZERO);
                int nullCount = 0;
                for (ValueType arg : args) {
                    if (arg.value == null) {
                        ++nullCount;
                    }
                    nodeList.add(arg.node);
                }
                final SqlCall call = op.createCall(nodeList);
                final SqlCallBinding binding = new SqlCallBinding(validator, scope, call);
                if (!typeChecker.checkOperandTypes(binding, false)) {
                    continue;
                }
                final SqlPrettyWriter writer = new SqlPrettyWriter(CalciteSqlDialect.DEFAULT);
                op.unparse(writer, call, 0, 0);
                final String s = writer.toSqlString().toString();
                if (s.startsWith("OVERLAY(") || s.contains(" / 0") || s.matches("MOD\\(.*, 0\\)")) {
                    continue;
                }
                final Strong.Policy policy = Strong.policy(op.kind);
                try {
                    if (nullCount > 0 && policy == Strong.Policy.ANY) {
                        tester.checkNull(s);
                    } else {
                        final String query;
                        if (op instanceof SqlAggFunction) {
                            if (op.requiresOrder()) {
                                query = "SELECT " + s + " OVER () FROM (VALUES (1))";
                            } else {
                                query = "SELECT " + s + " FROM (VALUES (1))";
                            }
                        } else {
                            query = SqlTesterImpl.buildQuery(s);
                        }
                        tester.check(query, SqlTests.ANY_TYPE_CHECKER, SqlTests.ANY_PARAMETER_CHECKER, SqlTests.ANY_RESULT_CHECKER);
                    }
                } catch (Error e) {
                    System.out.println(s + ": " + e.getMessage());
                    throw e;
                } catch (Exception e) {
                    System.out.println("Failed: " + s + ": " + e.getMessage());
                }
            }
        }
    }
}

Example 3 with SqlValidatorImpl

use of org.apache.calcite.sql.validate.SqlValidatorImpl in project calcite by apache.

the class SqlCall method findValidOptions.

public void findValidOptions(SqlValidator validator, SqlValidatorScope scope, SqlParserPos pos, Collection<SqlMoniker> hintList) {
    for (SqlNode operand : getOperandList()) {
        if (operand instanceof SqlIdentifier) {
            SqlIdentifier id = (SqlIdentifier) operand;
            SqlParserPos idPos = id.getParserPosition();
            if (idPos.toString().equals(pos.toString())) {
                ((SqlValidatorImpl) validator).lookupNameCompletionHints(scope, id.names, pos, hintList);
                return;
            }
        }
    }
// no valid options
}

Example 4 with SqlValidatorImpl

use of org.apache.calcite.sql.validate.SqlValidatorImpl in project calcite by apache.

the class SqlJdbcFunctionCall method deriveType.

public RelDataType deriveType(SqlValidator validator, SqlValidatorScope scope, SqlCall call) {
    for (SqlNode operand : call.getOperandList()) {
        RelDataType nodeType = validator.deriveType(scope, operand);
        ((SqlValidatorImpl) validator).setValidatedNodeType(operand, nodeType);
    }
    return validateOperands(validator, scope, call);
}

Example 5 with SqlValidatorImpl

use of org.apache.calcite.sql.validate.SqlValidatorImpl in project calcite by apache.

the class SqlFilterOperator method deriveType.

public RelDataType deriveType(SqlValidator validator, SqlValidatorScope scope, SqlCall call) {
    // Validate type of the inner aggregate call
    validateOperands(validator, scope, call);
    // Assume the first operand is an aggregate call and derive its type.
    SqlNode agg = call.operand(0);
    if (!(agg instanceof SqlCall)) {
        throw new IllegalStateException("Argument to SqlOverOperator" + " should be SqlCall, got " + agg.getClass() + ": " + agg);
    }
    final SqlCall aggCall = (SqlCall) agg;
    // Pretend that group-count is 0. This tells the aggregate function that it
    // might be invoked with 0 rows in a group. Most aggregate functions will
    // return NULL in this case.
    SqlCallBinding opBinding = new SqlCallBinding(validator, scope, aggCall) {

        @Override
        public int getGroupCount() {
            return 0;
        }
    };
    RelDataType ret = aggCall.getOperator().inferReturnType(opBinding);
    // Copied from validateOperands
    ((SqlValidatorImpl) validator).setValidatedNodeType(call, ret);
    ((SqlValidatorImpl) validator).setValidatedNodeType(agg, ret);
    return ret;
}