| // 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 "exprs/is-not-empty-predicate.h" |
| |
| #include <sstream> |
| |
| #include "gen-cpp/Exprs_types.h" |
| |
| #include "common/names.h" |
| |
| namespace impala { |
| |
| IsNotEmptyPredicate::IsNotEmptyPredicate(const TExprNode& node) |
| : Predicate(node) { |
| } |
| |
| BooleanVal IsNotEmptyPredicate::GetBooleanVal( |
| ScalarExprEvaluator* eval, const TupleRow* row) const { |
| CollectionVal coll = children_[0]->GetCollectionVal(eval, row); |
| if (coll.is_null) return BooleanVal::null(); |
| return BooleanVal(coll.num_tuples != 0); |
| } |
| |
| Status IsNotEmptyPredicate::Init(const RowDescriptor& row_desc, RuntimeState* state) { |
| RETURN_IF_ERROR(ScalarExpr::Init(row_desc, state)); |
| DCHECK_EQ(children_.size(), 1); |
| return Status::OK(); |
| } |
| |
| Status IsNotEmptyPredicate::GetCodegendComputeFn(LlvmCodeGen* codegen, |
| llvm::Function** fn) { |
| return GetCodegendComputeFnWrapper(codegen, fn); |
| } |
| |
| string IsNotEmptyPredicate::DebugString() const { |
| return ScalarExpr::DebugString("IsNotEmptyPredicate"); |
| } |
| |
| } |