177 lines
6.7 KiB
C++
177 lines
6.7 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#define USING_LOG_PREFIX SQL_REWRITE
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#include <fstream>
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#include <iterator>
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#include <gtest/gtest.h>
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#include "lib/utility/ob_test_util.h"
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#include "lib/allocator/page_arena.h"
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#include "lib/json/ob_json_print_utils.h" // for SJ
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#include "lib/oblog/ob_log.h"
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#include "sql/parser/ob_parser.h"
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#include "sql/resolver/ob_resolver.h"
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#include "sql/resolver/ob_schema_checker2.h"
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#include "sql/resolver/ddl/ob_create_table_stmt.h"
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#include "sql/rewrite/ob_subquery_unnested_rewrite.h"
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#include "sql/code_generator/ob_column_index_provider.h"
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#include "sql/engine/expr/ob_sql_expression.h"
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#include "sql/engine/ob_exec_context.h"
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#include "sql/engine/ob_physical_plan_ctx.h"
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#include "../test_sql_utils.h"
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using namespace oceanbase::common;
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using namespace oceanbase::sql;
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using namespace oceanbase::share;
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using namespace oceanbase::share::schema;
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namespace test
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{
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// calc ObRawExpr with an empty row
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#define CALC_RAW_EXPR(raw_expr, row, result) \
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({ \
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RowDesc row_desc; \
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ObSqlExpression sql_expr; \
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sql_expr.set_str_buf(&allocator); \
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ObExprGeneratorImpl expr_generator(row_desc); \
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expr_generator.generate(raw_expr, sql_expr); \
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ObExecContext exec_ctx; \
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if (OB_FAIL(exec_ctx.init_phy_op(MAX_OP_NUM))) { \
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LOG_WARN("fail to init exec_ctx", "MAX_OP_NUM", static_cast<int64_t>(MAX_OP_NUM), K(ret)); \
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} else if (OB_FAIL(exec_ctx.create_physical_plan_ctx())) { \
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LOG_WARN("fail to create_physical_plan_ctx", K(ret)); \
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} else { \
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ObExprCtx expr_ctx; \
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expr_ctx.phy_plan_ctx_ = exec_ctx.get_physical_plan_ctx(); \
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expr_ctx.calc_buf_ = &allocator; \
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if (OB_FAIL(sql_expr.calc(expr_ctx, row, result))) { \
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LOG_WARN("fail to calc expr", K(row), K(ret)); \
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} \
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} \
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ret; \
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})
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class TestAdjustExpr: public ::testing::Test, public TestSqlUtils
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{
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public:
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static const int64_t MAX_OP_NUM = 32;
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TestAdjustExpr();
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virtual ~TestAdjustExpr();
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virtual void SetUp();
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virtual void TearDown();
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private:
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// disallow copy
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DISALLOW_COPY_AND_ASSIGN(TestAdjustExpr);
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};
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TestAdjustExpr::TestAdjustExpr()
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{
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}
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TestAdjustExpr::~TestAdjustExpr()
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{
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}
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void TestAdjustExpr::SetUp()
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{
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}
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void TestAdjustExpr::TearDown()
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{
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}
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TEST_F(TestAdjustExpr, basic_test)
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{
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ObArenaAllocator allocator(ObModIds::TEST);
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schema::ObSchemaManager *schema_mgr = new schema::ObSchemaManager();
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ASSERT_TRUE(schema_mgr);
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OK(schema_mgr->init());
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// create schema
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const char *t1 = "CREATE TABLE t1(c1 INT PRIMARY KEY, c2 INT)";
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do_create_table(t1);
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// temp test
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const char *query_string = "select c1+1, c1+1 from t1";
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ObStmt *query_stmt = NULL;
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do_resolve(query_string, query_stmt);
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ObSelectStmt *query_select = static_cast<ObSelectStmt *>(query_stmt);
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ObOpRawExpr *first_expr = static_cast<ObOpRawExpr * >(query_select->get_select_item(0).expr_);
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ObOpRawExpr *second_expr = static_cast<ObOpRawExpr * >(query_select->get_select_item(1).expr_);
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ObRawExpr *test1 = first_expr;
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ObRawExpr *test2 = second_expr;
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LOG_INFO("=========================================");
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LOG_INFO("rawexpr", K(test1));
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LOG_INFO("rawexpr", K(test2));
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LOG_INFO("rawexpr", K(*test1));
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LOG_INFO("rawexpr", K(*test2));
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LOG_INFO("=========================================");
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EXPECT_TRUE(test1 != test2);
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// run tests
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int ret = OB_SUCCESS;
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ObStmt *stmt = NULL;
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const char *query = "select s.c1 from (select c1 from t1) s";
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do_resolve(allocator, schema_mgr, query, stmt);
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ObSelectStmt *select_stmt = static_cast<ObSelectStmt *>(stmt);
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uint64_t table_id = select_stmt->get_from_item(0).table_id_;
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ObStmt *child_query = select_stmt->get_table_item_by_id(table_id)->ref_query_;
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ObSelectStmt *child_stmt = static_cast<ObSelectStmt *>(child_query);
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ObSubqueryNestedRewrite rewriter;
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// adjust main stmt's select item
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for (int64_t i = 0; OB_SUCC(ret) && i < select_stmt->get_select_item_size(); ++i) {
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ObRawExpr *&expr = select_stmt->get_select_item(i).expr_;
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if (OB_SUCCESS != (ret = rewriter.adjust_query_expr(&allocator,
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expr,
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table_id,
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child_stmt))) {
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LOG_WARN("fail to adjust expr", K(ret));
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}
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}
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if (OB_SUCC(ret)) {
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// push down main stmt's select item
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child_stmt->clear_select_item();
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for (int64_t i = 0; i < select_stmt->get_select_item_size(); ++i) {
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child_stmt->add_select_item(select_stmt->get_select_item(i));
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}
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}
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LOG_INFO("child_stmt", K(*child_stmt));
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// for calc
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ObNewRow row;
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ObObj input;
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input.set_int(10);
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row.cells_ = &input;
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row.count_ = 1;
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ObObj result;
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CALC_RAW_EXPR(*child_stmt->get_select_item(0).expr_, row, result);
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// EXPECT_TRUE(OB_SUCC(ret));
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// EXPECT_TRUE(11 == result.get_int());
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// destroy
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if (NULL != schema_mgr) {
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delete schema_mgr;
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}
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}
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} // end test
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int main(int argc, char **argv)
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{
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oceanbase::common::ObLogger::get_logger().set_log_level("INFO");
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::testing::InitGoogleTest(&argc,argv);
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return RUN_ALL_TESTS();
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}
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