| 61 | return false; |
| 62 | } |
| 63 | void apply( |
| 64 | const SelectivityVector& rows, |
| 65 | std::vector<VectorPtr>& args, |
| 66 | const TypePtr& /* outputType */, |
| 67 | exec::EvalCtx& context, |
| 68 | VectorPtr& result) const override { |
| 69 | BaseVector::ensureWritable( |
| 70 | rows, MAP(VARCHAR(), VARCHAR()), context.pool(), result); |
| 71 | exec::LocalDecodedVector input(context, *args[0], rows); |
| 72 | exec::VectorWriter<Map<Varchar, Varchar>> resultWriter; |
| 73 | resultWriter.init(*result->as<MapVector>()); |
| 74 | rows.applyToSelected([&](vector_size_t row) { |
| 75 | resultWriter.setOffset(row); |
| 76 | if (input->isNullAt(row)) { |
| 77 | resultWriter.commitNull(); |
| 78 | return; |
| 79 | } |
| 80 | auto& mapWriter = resultWriter.current(); |
| 81 | auto sv = input->valueAt<StringView>(row); |
| 82 | const std::string_view current = std::string_view(sv.data(), sv.size()); |
| 83 | size_t start = 0; |
| 84 | size_t end = 0; |
| 85 | // used in Policy == LAST_WIN |
| 86 | folly::F14FastMap<std::string_view, std::string_view> keyValues; |
| 87 | folly::F14FastSet<std::string_view> nulls; |
| 88 | folly::F14FastSet<std::string_view> keys; |
| 89 | auto processKeyValue = [&](std::string_view key, std::string_view value) { |
| 90 | if constexpr (Policy == EXCEPTION) { |
| 91 | BOLT_USER_CHECK( |
| 92 | keys.insert(key).second, |
| 93 | "Duplicate map key {} was found, please check the input data. If you want " |
| 94 | "to remove the duplicated keys, you can set spark.sql.mapKeyDedupPolicy to " |
| 95 | "LAST_WIN so that the key inserted at last takes precedence.", |
| 96 | key); |
| 97 | auto [keyWriter, valueWriter] = mapWriter.add_item(); |
| 98 | keyWriter.setNoCopy(StringView(key)); |
| 99 | valueWriter.setNoCopy(StringView(value)); |
| 100 | } else if constexpr (Policy == FIRST_WIN) { |
| 101 | if (keys.insert(key).second) { |
| 102 | auto [keyWriter, valueWriter] = mapWriter.add_item(); |
| 103 | keyWriter.setNoCopy(StringView(key)); |
| 104 | valueWriter.setNoCopy(StringView(value)); |
| 105 | } |
| 106 | } else if constexpr (Policy == LAST_WIN) { |
| 107 | nulls.erase(key); |
| 108 | keyValues.insert_or_assign(key, value); |
| 109 | } else { |
| 110 | BOLT_UNREACHABLE(); |
| 111 | } |
| 112 | }; |
| 113 | auto processKeyValueWithNull = [&](std::string_view entry) { |
| 114 | if constexpr (IsFlinkCompatible) { |
| 115 | if (entry.empty()) { |
| 116 | return; |
| 117 | } |
| 118 | } |
| 119 | if constexpr (Policy == EXCEPTION) { |
| 120 | BOLT_USER_CHECK( |
nothing calls this directly
no test coverage detected