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fix some master bugs

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This commit is contained in:
wangt1xiuyi
2023-06-08 12:42:29 +00:00
committed by ob-robot
parent 36a2aa60b1
commit 9d3a53603a
16 changed files with 194 additions and 130 deletions
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75
src/share/stat/ob_dbms_stats_utils.cpp
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@ -776,5 +776,80 @@ int ObDbmsStatsUtils::get_subpart_infos(const ObTableSchema &table_schema,
return ret;
}
int ObDbmsStatsUtils::truncate_string_for_opt_stats(const ObObj *old_obj,
ObIAllocator &alloc,
ObObj *&new_obj)
{
int ret = OB_SUCCESS;
bool is_truncated = false;
if (OB_ISNULL(old_obj)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected null");
} else if (ObColumnStatParam::is_valid_opt_col_type(old_obj->get_type()) && old_obj->is_string_type()) {
ObString str;
if (OB_FAIL(old_obj->get_string(str))) {
LOG_WARN("failed to get string", K(ret), K(str));
} else {
ObObj *tmp_obj = NULL;
int64_t truncated_str_len = get_truncated_str_len(str, old_obj->get_collation_type());
if (truncated_str_len == str.length()) {
//do nothing
} else if (OB_UNLIKELY(truncated_str_len < 0)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected error", K(ret), K(old_obj), K(str), K(truncated_str_len));
} else if (OB_ISNULL(tmp_obj = static_cast<ObObj*>(alloc.alloc(sizeof(ObObj))))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("fail to alloc buf", K(ret));
} else {
tmp_obj->set_varchar(str.ptr(), static_cast<int32_t>(truncated_str_len));
tmp_obj->set_meta_type(old_obj->get_meta());
new_obj = tmp_obj;
is_truncated = true;
}
}
}
if (OB_SUCC(ret) && !is_truncated) {
new_obj = const_cast<ObObj *>(old_obj);
}
LOG_TRACE("Succeed to truncate string obj for opt stats", KPC(old_obj), KPC(new_obj), K(is_truncated));
return ret;
}
int ObDbmsStatsUtils::shadow_truncate_string_for_opt_stats(ObObj &obj)
{
int ret = OB_SUCCESS;
if (ObColumnStatParam::is_valid_opt_col_type(obj.get_type()) && obj.is_string_type()) {
ObString str;
if (OB_FAIL(obj.get_string(str))) {
LOG_WARN("failed to get string", K(ret), K(str), K(obj));
} else {
int64_t truncated_str_len = get_truncated_str_len(str, obj.get_collation_type());
if (OB_UNLIKELY(truncated_str_len < 0)) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("get unexpected error", K(ret), K(obj), K(str), K(truncated_str_len));
} else {
str.assign_ptr(str.ptr(), static_cast<int32_t>(truncated_str_len));
obj.set_common_value(str);
LOG_TRACE("Succeed to shadow truncate string obj for opt stats", K(obj));
}
}
}
return ret;
}
int64_t ObDbmsStatsUtils::get_truncated_str_len(const ObString &str, const ObCollationType cs_type)
{
int64_t truncated_str_len = 0;
int64_t mb_len = ObCharset::strlen_char(cs_type, str.ptr(), str.length());
if (mb_len <= OPT_STATS_MAX_VALUE_CHAR_LEN) {//keep origin str
truncated_str_len = str.length();
} else {//get max truncate str len
truncated_str_len = ObCharset::charpos(cs_type, str.ptr(), str.length(), OPT_STATS_MAX_VALUE_CHAR_LEN);
}
LOG_TRACE("Succeed to get truncated str len", K(str), K(cs_type), K(truncated_str_len));
return truncated_str_len;
}
}
}