[enhancement](plsql) Support select * from routines

be/src/exec/schema_scanner.cpp

@@ -37,6 +37,7 @@
 #include "exec/schema_scanner/schema_partitions_scanner.h"
 #include "exec/schema_scanner/schema_processlist_scanner.h"
 #include "exec/schema_scanner/schema_profiling_scanner.h"
+#include "exec/schema_scanner/schema_routine_scanner.h"
 #include "exec/schema_scanner/schema_rowsets_scanner.h"
 #include "exec/schema_scanner/schema_schema_privileges_scanner.h"
 #include "exec/schema_scanner/schema_schemata_scanner.h"
@@ -161,6 +162,8 @@ std::unique_ptr<SchemaScanner> SchemaScanner::create(TSchemaTableType::type type
         return SchemaWorkloadGroupsScanner::create_unique();
     case TSchemaTableType::SCH_PROCESSLIST:
         return SchemaProcessListScanner::create_unique();
+    case TSchemaTableType::SCH_PROCEDURES:
+        return SchemaRoutinesScanner::create_unique();
     default:
         return SchemaDummyScanner::create_unique();
         break;

be/src/exec/schema_scanner/schema_routine_scanner.cpp

@@ -0,0 +1,172 @@
+// 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 "exec/schema_scanner/schema_routine_scanner.h"
+
+#include "runtime/client_cache.h"
+#include "runtime/exec_env.h"
+#include "runtime/runtime_state.h"
+#include "util/thrift_rpc_helper.h"
+#include "vec/common/string_ref.h"
+#include "vec/core/block.h"
+#include "vec/data_types/data_type_factory.hpp"
+
+namespace doris {
+std::vector<SchemaScanner::ColumnDesc> SchemaRoutinesScanner::_s_tbls_columns = {
+        {"SPECIFIC_NAME", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"ROUTINE_CATALOG", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"ROUTINE_SCHEMA", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"ROUTINE_NAME", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"ROUTINE_TYPE", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"DTD_IDENTIFIER", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"ROUTINE_BODY", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"ROUTINE_DEFINITION", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"EXTERNAL_NAME", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"EXTERNAL_LANGUAGE", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"PARAMETER_STYLE", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"IS_DETERMINISTIC", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"SQL_DATA_ACCESS", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"SQL_PATH", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"SECURITY_TYPE", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"CREATED", TYPE_DATETIME, sizeof(int64_t), true},
+        {"LAST_ALTERED", TYPE_DATETIME, sizeof(int64_t), true},
+        {"SQL_MODE", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"ROUTINE_COMMENT", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"DEFINER", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"CHARACTER_SET_CLIENT", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"COLLATION_CONNECTION", TYPE_VARCHAR, sizeof(StringRef), true},
+        {"DATABASE_COLLATION", TYPE_VARCHAR, sizeof(StringRef), true},
+};
+
+SchemaRoutinesScanner::SchemaRoutinesScanner()
+        : SchemaScanner(_s_tbls_columns, TSchemaTableType::SCH_PROCEDURES) {}
+
+Status SchemaRoutinesScanner::start(RuntimeState* state) {
+    _block_rows_limit = state->batch_size();
+    _rpc_timeout = state->execution_timeout() * 1000;
+    return Status::OK();
+}
+
+Status SchemaRoutinesScanner::get_block_from_fe() {
+    TNetworkAddress master_addr = ExecEnv::GetInstance()->master_info()->network_address;
+    TSchemaTableRequestParams schema_table_request_params;
+    for (int i = 0; i < _s_tbls_columns.size(); i++) {
+        schema_table_request_params.__isset.columns_name = true;
+        schema_table_request_params.columns_name.emplace_back(_s_tbls_columns[i].name);
+    }
+    schema_table_request_params.__set_current_user_ident(*_param->common_param->current_user_ident);
+    TFetchSchemaTableDataRequest request;
+    request.__set_schema_table_name(TSchemaTableName::ROUTINES_INFO);
+    request.__set_schema_table_params(schema_table_request_params);
+    TFetchSchemaTableDataResult result;
+    RETURN_IF_ERROR(ThriftRpcHelper::rpc<FrontendServiceClient>(
+            master_addr.hostname, master_addr.port,
+            [&request, &result](FrontendServiceConnection& client) {
+                client->fetchSchemaTableData(result, request);
+            },
+            _rpc_timeout));
+    Status status(Status::create(result.status));
+    if (!status.ok()) {
+        LOG(WARNING) << "fetch routines from FE failed, errmsg=" << status;
+        return status;
+    }
+    std::vector<TRow> result_data = result.data_batch;
+    _routines_block = vectorized::Block::create_unique();
+    for (int i = 0; i < _s_tbls_columns.size(); ++i) {
+        TypeDescriptor descriptor(_s_tbls_columns[i].type);
+        auto data_type = vectorized::DataTypeFactory::instance().create_data_type(descriptor, true);
+        _routines_block->insert(vectorized::ColumnWithTypeAndName(
+                data_type->create_column(), data_type, _s_tbls_columns[i].name));
+    }
+    _routines_block->reserve(_block_rows_limit);
+    if (result_data.size() > 0) {
+        int col_size = result_data[0].column_value.size();
+        if (col_size != _s_tbls_columns.size()) {
+            return Status::InternalError<false>("routine table schema is not match for FE and BE");
+        }
+    }
+    auto insert_string_value = [&](int col_index, std::string str_val, vectorized::Block* block) {
+        vectorized::MutableColumnPtr mutable_col_ptr;
+        mutable_col_ptr = std::move(*block->get_by_position(col_index).column).assume_mutable();
+        auto* nullable_column =
+                reinterpret_cast<vectorized::ColumnNullable*>(mutable_col_ptr.get());
+        vectorized::IColumn* col_ptr = &nullable_column->get_nested_column();
+        reinterpret_cast<vectorized::ColumnString*>(col_ptr)->insert_data(str_val.data(),
+                                                                          str_val.size());
+        nullable_column->get_null_map_data().emplace_back(0);
+    };
+    auto insert_datetime_value = [&](int col_index, const std::vector<void*>& datas,
+                                     vectorized::Block* block) {
+        vectorized::MutableColumnPtr mutable_col_ptr;
+        mutable_col_ptr = std::move(*block->get_by_position(col_index).column).assume_mutable();
+        auto* nullable_column =
+                reinterpret_cast<vectorized::ColumnNullable*>(mutable_col_ptr.get());
+        vectorized::IColumn* col_ptr = &nullable_column->get_nested_column();
+        auto data = datas[0];
+        reinterpret_cast<vectorized::ColumnVector<vectorized::Int64>*>(col_ptr)->insert_data(
+                reinterpret_cast<char*>(data), 0);
+        nullable_column->get_null_map_data().emplace_back(0);
+    };
+
+    for (int i = 0; i < result_data.size(); i++) {
+        TRow row = result_data[i];
+
+        for (int j = 0; j < _s_tbls_columns.size(); j++) {
+            if (_s_tbls_columns[j].type == TYPE_DATETIME) {
+                std::vector<void*> datas(1);
+                VecDateTimeValue src[1];
+                src[0].from_date_str(row.column_value[j].stringVal.data(),
+                                     row.column_value[j].stringVal.size());
+                datas[0] = src;
+                insert_datetime_value(j, datas, _routines_block.get());
+            } else {
+                insert_string_value(j, row.column_value[j].stringVal, _routines_block.get());
+            }
+        }
+    }
+    return Status::OK();
+}
+
+Status SchemaRoutinesScanner::get_next_block(vectorized::Block* block, bool* eos) {
+    if (!_is_init) {
+        return Status::InternalError("Used before initialized.");
+    }
+
+    if (nullptr == block || nullptr == eos) {
+        return Status::InternalError("input pointer is nullptr.");
+    }
+
+    if (_routines_block == nullptr) {
+        RETURN_IF_ERROR(get_block_from_fe());
+        _total_rows = _routines_block->rows();
+    }
+
+    if (_row_idx == _total_rows) {
+        *eos = true;
+        return Status::OK();
+    }
+
+    int current_batch_rows = std::min(_block_rows_limit, _total_rows - _row_idx);
+    vectorized::MutableBlock mblock = vectorized::MutableBlock::build_mutable_block(block);
+    mblock.add_rows(_routines_block.get(), _row_idx, current_batch_rows);
+    _row_idx += current_batch_rows;
+
+    *eos = _row_idx == _total_rows;
+    return Status::OK();
+}
+
+} // namespace doris

be/src/exec/schema_scanner/schema_routine_scanner.h

@@ -0,0 +1,52 @@
+// 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.
+
+#pragma once
+
+#include <vector>
+
+#include "common/status.h"
+#include "exec/schema_scanner.h"
+
+namespace doris {
+class RuntimeState;
+namespace vectorized {
+class Block;
+} // namespace vectorized
+
+class SchemaRoutinesScanner : public SchemaScanner {
+    ENABLE_FACTORY_CREATOR(SchemaRoutinesScanner);
+
+public:
+    SchemaRoutinesScanner();
+    ~SchemaRoutinesScanner() override = default;
+
+    Status start(RuntimeState* state) override;
+    Status get_next_block(vectorized::Block* block, bool* eos) override;
+
+    static std::vector<SchemaScanner::ColumnDesc> _s_tbls_columns;
+
+private:
+    Status get_block_from_fe();
+
+    int _block_rows_limit = 4096;
+    int _row_idx = 0;
+    int _total_rows = 0;
+    std::unique_ptr<vectorized::Block> _routines_block = nullptr;
+    int _rpc_timeout = 3000;
+};
+}; // namespace doris

fe/fe-core/src/main/java/org/apache/doris/plsql/metastore/PlsqlManager.java

@@ -22,6 +22,7 @@
 import org.apache.doris.common.io.Writable;
 import org.apache.doris.persist.gson.GsonUtils;
 
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Maps;
 import com.google.gson.annotations.SerializedName;
 import org.apache.logging.log4j.LogManager;
@@ -34,7 +35,20 @@
 
 public class PlsqlManager implements Writable {
     private static final Logger LOG = LogManager.getLogger(PlsqlManager.class);
-
+    public static final ImmutableList<String> ROUTINE_INFO_TITLE_NAMES = new ImmutableList.Builder<String>()
+            .add("SPECIFIC_NAME").add("ROUTINE_CATALOG").add("ROUTINE_SCHEMA").add("ROUTINE_NAME")
+            .add("ROUTINE_TYPE")
+            .add("DTD_IDENTIFIER").add("ROUTINE_BODY")
+            .add("ROUTINE_DEFINITION").add("EXTERNAL_NAME")
+            .add("EXTERNAL_LANGUAGE").add("PARAMETER_STYLE")
+            .add("IS_DETERMINISTIC")
+            .add("SQL_DATA_ACCESS").add("SQL_PATH")
+            .add("SECURITY_TYPE").add("CREATED")
+            .add("LAST_ALTERED").add("SQL_MODE")
+            .add("ROUTINE_COMMENT")
+            .add("DEFINER").add("CHARACTER_SET_CLIENT")
+            .add("COLLATION_CONNECTION").add("DATABASE_COLLATION")
+            .build();
     @SerializedName(value = "nameToStoredProcedures")
     Map<PlsqlProcedureKey, PlsqlStoredProcedure> nameToStoredProcedures = Maps.newConcurrentMap();