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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#include "vec/exprs/vtuple_is_null_predicate.h"
#include <gen_cpp/Exprs_types.h>
#include <glog/logging.h>
#include <ostream>
#include <vector>
#include "runtime/descriptors.h"
namespace doris {
class RuntimeState;
namespace vectorized {
class Block;
class VExprContext;
} // namespace vectorized
} // namespace doris
namespace doris::vectorized {
VTupleIsNullPredicate::VTupleIsNullPredicate(const TExprNode& node)
: VExpr(node), _expr_name(function_name) {
DCHECK(node.tuple_is_null_pred.__isset.null_side);
_is_left_null_side = node.tuple_is_null_pred.null_side == TNullSide::LEFT;
_column_to_check = 0;
}
Status VTupleIsNullPredicate::prepare(RuntimeState* state, const RowDescriptor& desc,
VExprContext* context) {
RETURN_IF_ERROR_OR_PREPARED(VExpr::prepare(state, desc, context));
DCHECK_EQ(0, _children.size());
_column_to_check =
_is_left_null_side ? desc.num_materialized_slots() : desc.num_materialized_slots() + 1;
_prepare_finished = true;
return Status::OK();
}
Status VTupleIsNullPredicate::open(RuntimeState* state, VExprContext* context,
FunctionContext::FunctionStateScope scope) {
DCHECK(_prepare_finished);
RETURN_IF_ERROR(VExpr::open(state, context, scope));
_open_finished = true;
return Status::OK();
}
Status VTupleIsNullPredicate::execute(VExprContext* context, Block* block, int* result_column_id) {
DCHECK(_open_finished || _getting_const_col);
*result_column_id = _column_to_check;
return Status::OK();
}
const std::string& VTupleIsNullPredicate::expr_name() const {
return _expr_name;
}
std::string VTupleIsNullPredicate::debug_string() const {
std::stringstream out;
out << "TupleIsNullPredicate(_column_to_check=[";
out << _column_to_check;
out << "])";
return out.str();
}
} // namespace doris::vectorized