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oceanbase/src/sql/ob_insert_all_stmt_printer.cpp
obdev cff94d7d75 further fix for identifier is too long
2024-02-07 22:33:14 +00:00

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/**
* Copyright (c) 2021 OceanBase
* OceanBase CE is licensed under Mulan PubL v2.
* You can use this software according to the terms and conditions of the Mulan PubL v2.
* You may obtain a copy of Mulan PubL v2 at:
* http://license.coscl.org.cn/MulanPubL-2.0
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
* See the Mulan PubL v2 for more details.
*/
#define USING_LOG_PREFIX SQL
#include "sql/ob_insert_all_stmt_printer.h"
#include "sql/ob_sql_context.h"
#include "sql/ob_select_stmt_printer.h"
namespace oceanbase
{
using namespace common;
namespace sql
{
void ObInsertAllStmtPrinter::init(char *buf, int64_t buf_len, int64_t *pos, ObInsertAllStmt *stmt)
{
ObDMLStmtPrinter::init(buf, buf_len, pos, stmt);
}
int ObInsertAllStmtPrinter::do_print()
{
int ret = OB_SUCCESS;
if (OB_ISNULL(stmt_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("stmt should not be NULL", K(ret));
} else {
expr_printer_.init(buf_,
buf_len_,
pos_,
schema_guard_,
print_params_,
param_store_);
if (OB_FAIL(print())) {
LOG_WARN("fail to print stmt", K(ret));
}
}
return ret;
}
int ObInsertAllStmtPrinter::print()
{
int ret = OB_SUCCESS;
if (OB_ISNULL(stmt_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("stmt_ should not be NULL", K(ret));
} else if (OB_UNLIKELY(!stmt_->is_insert_all_stmt())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("Not a valid insert stmt", K(stmt_->get_stmt_type()),K(ret));
} else if (OB_FAIL(print_multi_insert_stmt())) {
LOG_WARN("fail to print multi insert stmt", K(ret), K(*stmt_));
} else { /*do nothing*/ }
return ret;
}
int ObInsertAllStmtPrinter::print_multi_insert_stmt()
{
int ret = OB_SUCCESS;
const ObInsertAllStmt *insert_stmt = static_cast<const ObInsertAllStmt*>(stmt_);
if (OB_ISNULL(stmt_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("stmt_ is NULL", K(ret));
} else if (OB_UNLIKELY(!stmt_->is_insert_all_stmt())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("Not a valid insert stmt", K(stmt_->get_stmt_type()), K(ret));
} else if (OB_FAIL(print_temp_table_as_cte())) {
LOG_WARN("failed to print cte", K(ret));
} else if (OB_FAIL(print_multi_insert(insert_stmt))) {
LOG_WARN("fail to print select", K(ret), K(*stmt_));
} else if (OB_FAIL(print_multi_value(insert_stmt))) {
LOG_WARN("fail to print into", K(ret), K(*stmt_));
} else if (insert_stmt->get_table_size() > 0) {
const TableItem *table_item = insert_stmt->get_table_item(insert_stmt->get_table_size() - 1);
const ObSelectStmt* sub_select_stmt = NULL;
if (OB_ISNULL(table_item) || OB_UNLIKELY(!table_item->is_generated_table()) ||
OB_ISNULL(sub_select_stmt = table_item->ref_query_)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("sub select stmt is null", K(ret), K(table_item), K(sub_select_stmt));
} else if (OB_FAIL(print_subquery(sub_select_stmt, PRINT_CTE | FORCE_COL_ALIAS))) {
LOG_WARN("failed to print subquery");
} else {
LOG_DEBUG("print multi insert stmt complete");
}
}
return ret;
}
int ObInsertAllStmtPrinter::print_multi_insert(const ObInsertAllStmt *insert_stmt)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(insert_stmt)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("insert_stmt is NULL", K(ret), K(insert_stmt));
} else {
DATA_PRINTF("insert ");
if (OB_FAIL(print_hint())) { // hint
LOG_WARN("fail to print hint", K(ret), K(*stmt_));
} else if (insert_stmt->get_is_multi_insert_first()) {
DATA_PRINTF("first");
} else {
DATA_PRINTF("all");
}
}
return ret;
}
int ObInsertAllStmtPrinter::print_multi_value(const ObInsertAllStmt *insert_stmt)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(insert_stmt)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("insert_stmt is NULL", K(ret), K(insert_stmt));
} else if (insert_stmt->get_is_multi_condition_insert()) {
if (OB_FAIL(print_multi_conditions_insert(insert_stmt))) {
LOG_WARN("failed to print multi conditions insert", K(ret));
}
} else if (OB_FAIL(print_basic_multi_insert(insert_stmt))) {
LOG_WARN("failed to print basic multi insert", K(ret));
} else {/*do nothing*/}
return ret;
}
int ObInsertAllStmtPrinter::print_basic_multi_insert(const ObInsertAllStmt *insert_stmt)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(insert_stmt) || OB_UNLIKELY(insert_stmt->get_is_multi_condition_insert())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected error", K(ret), K(insert_stmt));
} else {
const ObIArray<ObInsertAllTableInfo*> &table_infos = insert_stmt->get_insert_all_table_info();
for (int64_t i = 0;OB_SUCC(ret) && i < table_infos.count(); ++i) {
ObInsertAllTableInfo* table_info = table_infos.at(i);
if (OB_ISNULL(table_info)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get null table info", K(ret));
} else if (OB_FAIL(print_into_table_values(insert_stmt, *table_info))) {
LOG_WARN("failed to print into table values", K(ret));
}
}
}
return ret;
}
int ObInsertAllStmtPrinter::print_multi_conditions_insert(const ObInsertAllStmt *insert_stmt)
{
int ret = OB_SUCCESS;
if (OB_ISNULL(insert_stmt) || OB_UNLIKELY(!insert_stmt->get_is_multi_condition_insert())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected error", K(ret), K(insert_stmt));
} else {
int64_t pre_idx = -1;
const ObIArray<ObInsertAllTableInfo*> &table_infos = insert_stmt->get_insert_all_table_info();
for (int64_t i = 0;OB_SUCC(ret) && i < table_infos.count(); ++i) {
ObInsertAllTableInfo* table_info = table_infos.at(i);
if (OB_ISNULL(table_info)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get null table info", K(ret));
} else if (table_info->when_cond_idx_ == pre_idx) {
if (OB_FAIL(print_into_table_values(insert_stmt, *table_info))) {
LOG_WARN("failed to print into table values", K(ret));
}
} else if (table_info->when_cond_idx_ != -1) { //when expr
DATA_PRINTF(" when ");
for (int64_t j = 0; OB_SUCC(ret) && j < table_info->when_cond_exprs_.count(); ++j) {
if (OB_FAIL(expr_printer_.do_print(table_info->when_cond_exprs_.at(j),
T_NONE_SCOPE))) {
LOG_WARN("fail to print condition expr", K(ret));
} else {
DATA_PRINTF(" and ");
}
}
if (OB_SUCC(ret)) {
*pos_ -= 5; // strlen(" and ")
DATA_PRINTF(" then");
if (OB_FAIL(print_into_table_values(insert_stmt, *table_info))) {
LOG_WARN("failed to print into table values", K(ret));
} else {
pre_idx = table_info->when_cond_idx_;
}
}
} else { //else expr
DATA_PRINTF(" else ");
if (OB_FAIL(print_into_table_values(insert_stmt, *table_info))) {
LOG_WARN("failed to print into table values", K(ret));
} else {
pre_idx = table_info->when_cond_idx_;
}
}
}
}
return ret;
}
int ObInsertAllStmtPrinter::print_into_table_values(const ObInsertAllStmt *insert_stmt,
const ObInsertAllTableInfo& table_info)
{
int ret = OB_SUCCESS;
DATA_PRINTF(" into ");
const TableItem *table_item = NULL;
if (OB_ISNULL(insert_stmt) ||
OB_ISNULL(table_item = insert_stmt->get_table_item_by_id(table_info.table_id_))) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("Invalid table item", K(table_info), K(ret));
} else if (OB_FAIL(print_table(table_item, true))) {
LOG_WARN("failed to print table", K(*table_item), K(ret));
} else {
//print columns
DATA_PRINTF("(");
for (int64_t j = 0; OB_SUCC(ret) && j < table_info.values_desc_.count(); ++j) {
const ObColumnRefRawExpr* column = table_info.values_desc_.at(j);
if (OB_ISNULL(column)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("column is NULL", K(ret));
} else {
PRINT_IDENT_WITH_QUOT(column->get_column_name());
DATA_PRINTF(",");
}
}
if (OB_SUCC(ret)) {
--*pos_;
DATA_PRINTF(") ");
//print values
int64_t col_count = table_info.values_desc_.count();
int64_t row_count = table_info.values_vector_.count() / col_count;
DATA_PRINTF("values");
for (int64_t k = 0; OB_SUCC(ret) && k < row_count; ++k) {
DATA_PRINTF("(");
for (int64_t p = 0; OB_SUCC(ret) && p < col_count; ++p) {
if (OB_FAIL(expr_printer_.do_print(table_info.values_vector_.at(k * col_count + p),
T_INSERT_SCOPE,
true))) {
LOG_WARN("fail to print where expr", K(ret));
} else {
DATA_PRINTF(",");
}
}
if (OB_SUCC(ret)) {
--*pos_;
DATA_PRINTF("),");
}
}
if (OB_SUCC(ret)) {
--*pos_;
}
}
}
return ret;
}
} //end of namespace sql
} //end of namespace oceanbase
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