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oceanbase/unittest/sql/optimizer/ob_mock_stat_manager.h
gm 4a92b6d7df reformat source code 
according to code styles, 'AccessModifierOffset' should be -2.
2021-06-17 10:40:36 +08:00

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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.
*/
#ifndef _OB_MOCK_STAT_MANAGER_H
#define _OB_MOCK_STAT_MANAGER_H 1
#include "share/stat/ob_stat_manager.h"
#include "share/stat/ob_table_stat.h"
#include "share/stat/ob_column_stat_cache.h"
#include "sql/optimizer/ob_opt_default_stat.h"
#include "lib/timezone/ob_time_convert.h"
#include "sql/resolver/ob_schema_checker.h"
#include "share/schema/ob_column_schema.h"
namespace test {
class MockTableStatService : public oceanbase::common::ObTableStatDataService {
public:
static const int64_t DEFAULT_ROW_COUNT = 100;
static const int64_t DEFAULT_ROW_SIZE = 100;
static const int64_t DEFAULT_DATA_SIZE = DEFAULT_ROW_COUNT * DEFAULT_ROW_SIZE;
static const int64_t DEFAULT_MACROC_BLOCKS = DEFAULT_ROW_COUNT * DEFAULT_ROW_SIZE / DEFAULT_MACRO_BLOCK_SIZE;
static const int64_t DEFAULT_MICRO_BLOCKS = DEFAULT_DATA_SIZE / DEFAULT_MICRO_BLOCK_SIZE;
MockTableStatService()
{
reset_table_stat();
}
virtual ~MockTableStatService()
{}
int get_table_stat(const ObPartitionKey& key, ObTableStat& tstat)
{
UNUSED(key);
tstat.reset();
tstat = table_stat_;
return OB_SUCCESS;
}
void reset_table_stat()
{
table_stat_.set_row_count(DEFAULT_ROW_COUNT);
table_stat_.set_data_size(DEFAULT_DATA_SIZE);
table_stat_.set_macro_blocks_num(DEFAULT_MACROC_BLOCKS);
table_stat_.set_micro_blocks_num(DEFAULT_MICRO_BLOCKS);
table_stat_.set_average_row_size(DEFAULT_ROW_SIZE);
}
void set_table_stat(ObTableStat& table_stat)
{
table_stat_ = table_stat;
}
void set_table_row_count(int64_t row_count)
{
table_stat_.set_row_count(row_count);
}
private:
ObTableStat table_stat_;
};
class MockColumnStatService : public oceanbase::common::ObColumnStatDataService {
public:
MockColumnStatService()
{}
virtual ~MockColumnStatService()
{}
int get_column_stat(const ObColumnStat::Key& key, const bool force_new, ObColumnStatValueHandle& handle)
{
UNUSED(key);
UNUSED(force_new);
UNUSED(handle);
return OB_SUCCESS;
}
int get_column_stat(const ObColumnStat::Key& key, const bool force_new, ObColumnStat& cstat, ObIAllocator& alloc)
{
UNUSED(key);
UNUSED(force_new);
UNUSED(cstat);
UNUSED(alloc);
return OB_SUCCESS;
}
int get_batch_stat(const uint64_t table_id, const ObIArray<uint64_t>& partition_id,
const ObIArray<uint64_t>& column_ids, ObIArray<ObColumnStatValueHandle>& handles)
{
UNUSED(table_id);
UNUSED(partition_id);
UNUSED(column_ids);
UNUSED(handles);
return OB_SUCCESS;
}
int get_batch_stat(const oceanbase::share::schema::ObTableSchema& table_schema, const uint64_t partition_id,
ObIArray<ObColumnStat*>& stats, ObIAllocator& allocator)
{
UNUSED(table_schema);
UNUSED(partition_id);
UNUSED(stats);
UNUSED(allocator);
return OB_SUCCESS;
}
int update_column_stats(const ObIArray<ObColumnStat*>& column_stats)
{
UNUSED(column_stats);
return OB_SUCCESS;
}
int update_column_stat(const ObColumnStat& cstat)
{
UNUSED(cstat);
return OB_SUCCESS;
}
int erase_column_stat(const ObPartitionKey& pkey, const int64_t column_id)
{
UNUSEDx(pkey, column_id);
return OB_SUCCESS;
}
};
class MockStatManager : public oceanbase::common::ObStatManager {
static const uint64_t DEFAULT_TABLE1_ID = 1099511677777;
static const uint64_t DEFAULT_TABLE2_ID = 1099511677778;
static const int64_t TIME_MAX_VALUE = (3020399 * 1000000LL);
static const int64_t DATE_MAX_VALUE = 2932896;
static const int64_t DATE_MIN_VALUE = -354258;
public:
struct ColumnStatInfo {
ObObj min_;
ObObj max_;
int64_t distinct_num_;
int64_t null_num_;
void set_column_info(ObObj min, ObObj max, int64_t distinct_num, int64_t null_num)
{
min_ = min;
max_ = max;
distinct_num_ = distinct_num;
null_num_ = null_num;
}
};
MockStatManager() : schema_checker_(NULL)
{
ObObj min;
min.set_int(0);
ObObj max;
max.set_int(20);
int_info_.set_column_info(min, max, 10, 10);
ObObj str_min;
ObObj str_max;
str_min.set_varchar("aa");
str_min.set_collation_type(CS_TYPE_UTF8MB4_GENERAL_CI);
str_max.set_varchar("az");
str_max.set_collation_type(CS_TYPE_UTF8MB4_GENERAL_CI);
str_info_.set_column_info(str_min, str_max, 80, 10);
table1_row_count_ = 100;
table2_row_count_ = 100;
default_stat_ = false;
}
virtual ~MockStatManager()
{}
void set_schema_checker(oceanbase::sql::ObSchemaChecker* schema_checker)
{
schema_checker_ = schema_checker;
}
void set_default_stat(bool is_default)
{
default_stat_ = is_default;
}
int get_table_stat(const ObPartitionKey& pkey, ObTableStat& tstat)
{
int ret = OB_SUCCESS;
if (default_stat_) {
tstat.set_row_count(0);
} else if (DEFAULT_TABLE2_ID == pkey.get_table_id()) { // for opt_sel
tstat.set_row_count(table2_row_count_);
tstat.set_data_size(DEFAULT_ROW_SIZE * tstat.get_row_count());
} else {
tstat.set_row_count(table1_row_count_); // table1 or default
tstat.set_data_size(DEFAULT_ROW_SIZE * tstat.get_row_count());
}
return ret;
}
int get_column_stat(uint64_t table_id, uint64_t partition_id, uint64_t column_id, ObColumnStatValueHandle& handle)
{
int ret = oceanbase::common::OB_SUCCESS;
UNUSED(partition_id);
UNUSED(handle);
const oceanbase::share::schema::ObColumnSchemaV2* col_schema = NULL;
ObObj min;
ObObj max;
ObColumnStat* column_stat = (ObColumnStat*)allocator_.alloc(sizeof(ObColumnStat));
char* llc_bitmap = (char*)allocator_.alloc(oceanbase::common::ObColumnStat::NUM_LLC_BUCKET);
MEMSET(llc_bitmap, 0, oceanbase::common::ObColumnStat::NUM_LLC_BUCKET);
if (NULL == column_stat) {
ret = OB_ERR_UNEXPECTED;
COMMON_LOG(WARN, "failed to allocate column stat", K(ret));
} else if (OB_FAIL(column_stats_.push_back(column_stat))) {
ret = OB_ERR_UNEXPECTED;
COMMON_LOG(WARN, "failed to allocate column stat", K(ret));
} else {
column_stat = new (column_stat) ObColumnStat();
column_stat->set_table_id(table_id);
column_stat->set_partition_id(partition_id);
column_stat->set_column_id(column_id);
column_stat->set_num_distinct(int_info_.distinct_num_);
column_stat->set_num_null(int_info_.null_num_);
column_stat->set_llc_bitmap(llc_bitmap, oceanbase::common::ObColumnStat::NUM_LLC_BUCKET);
}
if (OB_SUCC(ret) && NULL != schema_checker_) {
if (OB_FAIL(schema_checker_->get_column_schema(table_id, column_id, col_schema, true))) {
COMMON_LOG(WARN, "Failed to get column schema", K(ret));
} else if (NULL == col_schema) {
ret = OB_ERR_UNEXPECTED;
COMMON_LOG(WARN, "Col schema is NULL", K(ret));
} else if (default_stat_) {
column_stat->set_num_distinct(0);
column_stat->set_num_null(0);
min.set_min_value();
max.set_max_value();
} else if (oceanbase::common::ObStringTC == col_schema->get_meta_type().get_type_class()) {
column_stat->set_num_distinct(str_info_.distinct_num_);
column_stat->set_num_null(str_info_.null_num_);
min = str_info_.min_; // todo(yeti): special use, need deep copy
max = str_info_.max_;
} else if (col_schema->get_meta_type().get_type() >= ObDateTimeType &&
col_schema->get_meta_type().get_type() <= ObYearType) {
switch (col_schema->get_meta_type().get_type()) {
case ObDateTimeType: {
min.set_datetime(DATETIME_MIN_VAL);
max.set_datetime(DATETIME_MAX_VAL);
break;
}
case ObTimestampType: {
min.set_timestamp(DATETIME_MIN_VAL);
max.set_timestamp(DATETIME_MAX_VAL);
break;
}
case ObDateType: {
min.set_date(DATE_MIN_VALUE);
ObObj xx;
xx.set_varchar("9999-12-31");
max.set_date(DATE_MAX_VALUE);
break;
}
case ObTimeType: {
min.set_time(ObTimeConverter::ZERO_TIME);
max.set_time(TIME_MAX_VALUE);
break;
}
case ObYearType: {
uint8_t ymin = 0;
ObTimeConverter::int_to_year(1970, ymin);
min.set_year(ymin);
uint8_t ymax = 0;
ObTimeConverter::int_to_year(2155, ymax);
max.set_year(ymax);
break;
}
default:
break;
}
} else {
min = int_info_.min_;
max = int_info_.max_;
}
}
column_stat->set_min_value(min);
column_stat->set_max_value(max);
handle.cache_value_ = column_stat;
return ret;
}
int get_batch_stat(const uint64_t table_id, const ObIArray<uint64_t>& partition_ids,
const ObIArray<uint64_t>& column_ids, ObIArray<ObColumnStatValueHandle>& handles) override
{
int ret = OB_SUCCESS;
ObColumnStatValueHandle handle;
column_stats_.reuse();
allocator_.reset();
for (int64_t i = 0; OB_SUCC(ret) && i < partition_ids.count(); ++i) {
for (int64_t j = 0; OB_SUCC(ret) && j < column_ids.count(); ++j) {
if (OB_FAIL(get_column_stat(table_id, partition_ids.at(i), column_ids.at(j), handle))) {
COMMON_LOG(WARN, "failed to get single column stat", K(ret));
} else if (OB_FAIL(handles.push_back(handle))) {
COMMON_LOG(WARN, "failed to push back column stat", K(ret));
}
}
}
return ret;
}
int get_batch_stat(const oceanbase::share::schema::ObTableSchema& table_schema, const uint64_t partition_id,
ObIArray<ObColumnStat*>& stats, ObIAllocator& allocator)
{
UNUSED(table_schema);
UNUSED(partition_id);
UNUSED(stats);
UNUSED(allocator);
return OB_SUCCESS;
}
void set_column_stat(int64_t distinct, ObObj min, ObObj max, int64_t null_num)
{
if (ObStringTC == min.get_type_class()) {
str_info_.set_column_info(min, max, distinct, null_num);
} else {
int_info_.set_column_info(min, max, distinct, null_num);
}
}
void set_table_stat(int64_t table1_row_count, int64_t table2_row_count)
{
table1_row_count_ = table1_row_count;
table2_row_count_ = table2_row_count;
}
private:
oceanbase::sql::ObSchemaChecker* schema_checker_;
ObArenaAllocator allocator_;
ObSEArray<ObColumnStat*, 8> column_stats_;
int64_t table1_row_count_;
int64_t table2_row_count_;
ColumnStatInfo int_info_;
ColumnStatInfo str_info_;
bool default_stat_;
};
} // end namespace test
#endif /* _OB_MOCK_STAT_MANAGER_H */
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