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[FEAT MERGE] Support external table

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Co-authored-by: jingtaoye35 <1255153887@qq.com>
This commit is contained in:
wjhh2008
2023-04-29 15:11:49 +00:00
committed by ob-robot
parent ecb74a122c
commit 09ed904b58
164 changed files with 8074 additions and 667 deletions
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378
src/sql/engine/cmd/ob_load_data_parser.cpp
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@ -15,6 +15,9 @@
#include "sql/engine/cmd/ob_load_data_parser.h"
#include "sql/resolver/cmd/ob_load_data_stmt.h"
#include "lib/oblog/ob_log_module.h"
#include "lib/utility/ob_print_utils.h"
#include "lib/string/ob_hex_utils_base.h"
#include "deps/oblib/src/lib/list/ob_dlist.h"
using namespace oceanbase::sql;
using namespace oceanbase::common;
@ -23,30 +26,69 @@ namespace oceanbase
{
namespace sql
{
const char INVALID_TERM_CHAR = '\xff';
const char * FORMAT_TYPE_STR[] = {
"CSV",
};
static_assert(array_elements(FORMAT_TYPE_STR) == ObExternalFileFormat::MAX_FORMAT, "Not enough initializer for ObExternalFileFormat");
int ObCSVGeneralFormat::init_format(const ObDataInFileStruct &format,
int64_t file_column_nums,
ObCollationType file_cs_type)
{
int ret = OB_SUCCESS;
if (!ObCharset::is_valid_collation(file_cs_type)) {
ret = OB_ERR_UNKNOWN_CHARSET;
LOG_WARN("invalid charset", K(ret), K(file_cs_type));
} else {
cs_type_ = ObCharset::charset_type_by_coll(file_cs_type);
file_column_nums_ = file_column_nums;
field_enclosed_char_ = format.field_enclosed_char_;
field_escaped_char_ = format.field_escaped_char_;
field_term_str_ = format.field_term_str_;
line_term_str_ = format.line_term_str_;
line_start_str_ = format.line_start_str_;
if (line_term_str_.empty() && !field_term_str_.empty()) {
line_term_str_ = field_term_str_;
}
}
return ret;
}
int ObCSVGeneralParser::init(const ObDataInFileStruct &format,
int64_t file_column_nums,
ObCollationType file_cs_type)
{
int ret = OB_SUCCESS;
const char INVALID_TERM_CHAR = '\xff';
if (!ObCharset::is_valid_collation(file_cs_type)) {
ret = OB_ERR_UNKNOWN_CHARSET;
LOG_WARN("invalid charset", K(ret), K(file_cs_type));
} else {
format_.cs_type_ = ObCharset::charset_type_by_coll(file_cs_type);
format_.file_column_nums_ = file_column_nums;
format_.field_enclosed_char_ = format.field_enclosed_char_;
format_.field_escaped_char_ = format.field_escaped_char_;
format_.field_term_str_ = format.field_term_str_;
format_.line_term_str_ = format.line_term_str_;
format_.line_start_str_ = format.line_start_str_;
if (format_.line_term_str_.empty() && !format_.field_term_str_.empty()) {
format_.line_term_str_ = format_.field_term_str_;
}
if (OB_FAIL(format_.init_format(format, file_column_nums, file_cs_type))) {
LOG_WARN("fail to init format", K(ret));
} else if (OB_FAIL(init_opt_variables())) {
LOG_WARN("fail to init opt values", K(ret));
}
return ret;
}
int ObCSVGeneralParser::init(const ObCSVGeneralFormat &format)
{
int ret = OB_SUCCESS;
format_ = format;
if (OB_FAIL(init_opt_variables())) {
LOG_WARN("fail to init opt values", K(ret));
}
return ret;
}
int ObCSVGeneralParser::init_opt_variables()
{
int ret = OB_SUCCESS;
if (OB_SUCC(ret)) {
opt_param_.line_term_c_ = format_.line_term_str_.empty() ? INVALID_TERM_CHAR : format_.line_term_str_[0];
opt_param_.field_term_c_ = format_.field_term_str_.empty() ? INVALID_TERM_CHAR : format_.field_term_str_[0];
@ -65,10 +107,9 @@ int ObCSVGeneralParser::init(const ObDataInFileStruct &format,
}
if (OB_SUCC(ret) && OB_FAIL(fields_per_line_.prepare_allocate(file_column_nums))) {
LOG_WARN("fail to allocate memory", K(ret), K(file_column_nums));
if (OB_SUCC(ret) && OB_FAIL(fields_per_line_.prepare_allocate(format_.file_column_nums_))) {
LOG_WARN("fail to allocate memory", K(ret), K(format_.file_column_nums_));
}
return ret;
}
@ -81,7 +122,7 @@ int ObCSVGeneralParser::handle_irregular_line(int field_idx, int line_no,
OB_WARN_TOO_MANY_RECORDS : OB_WARN_TOO_FEW_RECORDS;
rec.line_no = line_no;
OX (errors.push_back(rec));
for (int i = field_idx; i < format_.file_column_nums_; ++i) {
for (int i = field_idx; OB_SUCC(ret) && i < format_.file_column_nums_; ++i) {
FieldValue &new_field = fields_per_line_.at(i);
new_field = FieldValue();
new_field.is_null_ = 1;
@ -89,5 +130,304 @@ int ObCSVGeneralParser::handle_irregular_line(int field_idx, int line_no,
return ret;
}
int64_t ObCSVGeneralFormat::to_json_kv_string(char *buf, const int64_t buf_len) const
{
int64_t pos = 0;
int64_t idx = 0;
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":\"%s\"", OPTION_NAMES[idx++], to_cstring(ObHexStringWrap(line_term_str_)));
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":\"%s\"", OPTION_NAMES[idx++], to_cstring(ObHexStringWrap(field_term_str_)));
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":%ld", OPTION_NAMES[idx++], field_escaped_char_);
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":%ld", OPTION_NAMES[idx++], field_enclosed_char_);
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":\"%s\"", OPTION_NAMES[idx++], ObCharset::charset_name(cs_type_));
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":%ld", OPTION_NAMES[idx++], skip_header_lines_);
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":%s", OPTION_NAMES[idx++], STR_BOOL(skip_blank_lines_));
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":%s", OPTION_NAMES[idx++], STR_BOOL(trim_space_));
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":", OPTION_NAMES[idx++]);
J_ARRAY_START();
for (int64_t i = 0; i < null_if_.count(); i++) {
if (i != 0) {
J_COMMA();
}
databuff_printf(buf, buf_len, pos, "\"%s\"", to_cstring(ObHexStringWrap(null_if_.at(i))));
}
J_ARRAY_END();
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":%s", OPTION_NAMES[idx++], STR_BOOL(empty_field_as_null_));
return pos;
}
int ObCSVGeneralFormat::load_from_json_data(json::Pair *&node, ObIAllocator &allocator)
{
int ret = OB_SUCCESS;
int64_t idx = 0;
if (OB_SUCC(ret) && OB_NOT_NULL(node) && 0 == node->name_.case_compare(OPTION_NAMES[idx++])
&& json::JT_STRING == node->value_->get_type()) {
ObObj obj;
OZ (ObHexUtilsBase::unhex(node->value_->get_string(), allocator, obj));
if (OB_SUCC(ret) && !obj.is_null()) {
line_term_str_ = obj.get_string();
}
node = node->get_next();
}
if (OB_NOT_NULL(node) && 0 == node->name_.case_compare(OPTION_NAMES[idx++])
&& json::JT_STRING == node->value_->get_type()) {
ObObj obj;
OZ (ObHexUtilsBase::unhex(node->value_->get_string(), allocator, obj));
if (OB_SUCC(ret) && !obj.is_null()) {
field_term_str_ = obj.get_string();
}
node = node->get_next();
}
if (OB_NOT_NULL(node) && 0 == node->name_.case_compare(OPTION_NAMES[idx++])
&& json::JT_NUMBER == node->value_->get_type()) {
field_escaped_char_ = node->value_->get_number();
node = node->get_next();
}
if (OB_NOT_NULL(node) && 0 == node->name_.case_compare(OPTION_NAMES[idx++])
&& json::JT_NUMBER == node->value_->get_type()) {
field_enclosed_char_ = node->value_->get_number();
node = node->get_next();
}
if (OB_NOT_NULL(node) && 0 == node->name_.case_compare(OPTION_NAMES[idx++])
&& json::JT_STRING == node->value_->get_type()) {
cs_type_ = ObCharset::charset_type(node->value_->get_string());
node = node->get_next();
}
if (OB_NOT_NULL(node) && 0 == node->name_.case_compare(OPTION_NAMES[idx++])
&& json::JT_NUMBER == node->value_->get_type()) {
skip_header_lines_ = node->value_->get_number();
node = node->get_next();
}
if (OB_NOT_NULL(node) && 0 == node->name_.case_compare(OPTION_NAMES[idx++])) {
if (json::JT_TRUE == node->value_->get_type()) {
skip_blank_lines_ = true;
} else {
skip_blank_lines_ = false;
}
node = node->get_next();
}
if (OB_NOT_NULL(node) && 0 == node->name_.case_compare(OPTION_NAMES[idx++])) {
if (json::JT_TRUE == node->value_->get_type()) {
trim_space_ = true;
} else {
trim_space_ = false;
}
node = node->get_next();
}
if (OB_SUCC(ret) && OB_NOT_NULL(node) && 0 == node->name_.case_compare(OPTION_NAMES[idx++])
&& json::JT_ARRAY == node->value_->get_type()) {
const json::Array &it_array = node->value_->get_array();
int64_t idx = 0;
if (it_array.get_size() > 0
&& OB_FAIL(null_if_.allocate_array(allocator, it_array.get_size()))) {
LOG_WARN("allocate array failed", K(ret));
}
for (auto it_tmp = it_array.get_first();
OB_SUCC(ret) && it_tmp != it_array.get_header() && it_tmp != NULL;
it_tmp = it_tmp->get_next()) {
if (OB_UNLIKELY(json::JT_STRING != it_tmp->get_type())) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("null_if_ child is not string", K(ret), "type", it_tmp->get_type());
} else {
ObObj obj;
OZ (ObHexUtilsBase::unhex(it_tmp->get_string(), allocator, obj));
if (OB_SUCC(ret) && !obj.is_null()) {
null_if_.at(idx++) = obj.get_string();
}
}
}
node = node->get_next();
}
if (OB_NOT_NULL(node) && 0 == node->name_.case_compare(OPTION_NAMES[idx++])) {
if (json::JT_TRUE == node->value_->get_type()) {
empty_field_as_null_ = true;
} else {
empty_field_as_null_ = false;
}
node = node->get_next();
}
return ret;
}
int64_t ObOriginFileFormat::to_json_kv_string(char *buf, const int64_t buf_len) const
{
int64_t pos = 0;
int64_t idx = 0;
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":\"%s\"", ORIGIN_FORMAT_STRING[idx++], to_cstring(ObHexStringWrap(origin_line_term_str_)));
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":\"%s\"", ORIGIN_FORMAT_STRING[idx++], to_cstring(ObHexStringWrap(origin_field_term_str_)));
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":\"%s\"", ORIGIN_FORMAT_STRING[idx++], to_cstring(ObHexStringWrap(origin_field_escaped_str_)));
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":\"%s\"", ORIGIN_FORMAT_STRING[idx++], to_cstring(ObHexStringWrap(origin_field_enclosed_str_)));
J_COMMA();
databuff_printf(buf, buf_len, pos, "\"%s\":\"%s\"", ORIGIN_FORMAT_STRING[idx++], to_cstring(ObHexStringWrap(origin_null_if_str_)));
return pos;
}
int ObOriginFileFormat::load_from_json_data(json::Pair *&node, ObIAllocator &allocator)
{
int ret = OB_SUCCESS;
int64_t idx = 0;
if (OB_SUCC(ret) && OB_NOT_NULL(node)
&& 0 == node->name_.case_compare(ORIGIN_FORMAT_STRING[idx++])
&& json::JT_STRING == node->value_->get_type()) {
ObObj obj;
OZ (ObHexUtilsBase::unhex(node->value_->get_string(), allocator, obj));
if (OB_SUCC(ret) && !obj.is_null()) {
origin_line_term_str_ = obj.get_string();
}
node = node->get_next();
}
if (OB_SUCC(ret) && OB_NOT_NULL(node)
&& 0 == node->name_.case_compare(ORIGIN_FORMAT_STRING[idx++])
&& json::JT_STRING == node->value_->get_type()) {
ObObj obj;
OZ (ObHexUtilsBase::unhex(node->value_->get_string(), allocator, obj));
if (OB_SUCC(ret) && !obj.is_null()) {
origin_field_term_str_ = obj.get_string();
}
node = node->get_next();
}
if (OB_SUCC(ret) && OB_NOT_NULL(node)
&& 0 == node->name_.case_compare(ORIGIN_FORMAT_STRING[idx++])
&& json::JT_STRING == node->value_->get_type()) {
ObObj obj;
OZ (ObHexUtilsBase::unhex(node->value_->get_string(), allocator, obj));
if (OB_SUCC(ret) && !obj.is_null()) {
origin_field_escaped_str_ = obj.get_string();
}
node = node->get_next();
}
if (OB_SUCC(ret) && OB_NOT_NULL(node)
&& 0 == node->name_.case_compare(ORIGIN_FORMAT_STRING[idx++])
&& json::JT_STRING == node->value_->get_type()) {
ObObj obj;
OZ (ObHexUtilsBase::unhex(node->value_->get_string(), allocator, obj));
if (OB_SUCC(ret) && !obj.is_null()) {
origin_field_enclosed_str_ = obj.get_string();
}
node = node->get_next();
}
if (OB_SUCC(ret) && OB_NOT_NULL(node)
&& 0 == node->name_.case_compare(ORIGIN_FORMAT_STRING[idx++])
&& json::JT_STRING == node->value_->get_type()) {
ObObj obj;
OZ (ObHexUtilsBase::unhex(node->value_->get_string(), allocator, obj));
if (OB_SUCC(ret) && !obj.is_null()) {
origin_null_if_str_ = obj.get_string();
}
node = node->get_next();
}
return ret;
}
int64_t ObExternalFileFormat::to_string(char *buf, const int64_t buf_len) const
{
int64_t pos = 0;
bool is_valid_format = format_type_ > INVALID_FORMAT && format_type_ < MAX_FORMAT;
J_OBJ_START();
databuff_print_kv(buf, buf_len, pos, "\"TYPE\"", is_valid_format ? FORMAT_TYPE_STR[format_type_] : "INVALID");
switch (format_type_) {
case CSV_FORMAT:
pos += csv_format_.to_json_kv_string(buf + pos, buf_len - pos);
pos += origin_file_format_str_.to_json_kv_string(buf + pos, buf_len - pos);
break;
default:
pos = 0;
}
J_OBJ_END();
return pos;
}
int ObExternalFileFormat::load_from_string(const ObString &str, ObIAllocator &allocator)
{
int ret = OB_SUCCESS;
json::Value *data = NULL;
json::Parser parser;
ObArenaAllocator temp_allocator;
if (OB_UNLIKELY(str.empty())) {
ret = OB_INVALID_ARGUMENT;
LOG_WARN("format string is empty", K(ret), K(str));
} else if (OB_FAIL(parser.init(&temp_allocator))) {
LOG_WARN("parser init failed", K(ret));
} else if (OB_FAIL(parser.parse(str.ptr(), str.length(), data))) {
LOG_WARN("parse json failed", K(ret), K(str));
} else if (NULL == data || json::JT_OBJECT != data->get_type()) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("error json value", K(ret), KPC(data));
} else {
auto format_type_node = data->get_object().get_first();
if (format_type_node->value_->get_type() != json::JT_STRING) {
ret = OB_ERR_UNEXPECTED;
LOG_WARN("unexpected json format", K(ret), K(str));
} else {
ObString format_type_str = format_type_node->value_->get_string();
for (int i = 0; i < array_elements(FORMAT_TYPE_STR); ++i) {
if (format_type_str.case_compare(FORMAT_TYPE_STR[i]) == 0) {
format_type_ = static_cast<FormatType>(i);
break;
}
}
format_type_node = format_type_node->get_next();
switch (format_type_) {
case CSV_FORMAT:
OZ (csv_format_.load_from_json_data(format_type_node, allocator));
OZ (origin_file_format_str_.load_from_json_data(format_type_node, allocator));
break;
default:
ret = OB_ERR_UNEXPECTED;
LOG_WARN("invalid format type", K(ret), K(format_type_str));
break;
}
}
}
return ret;
}
int ObExternalFileFormat::StringData::store_str(const ObString &str)
{
return ob_write_string(allocator_, str, str_);
}
OB_DEF_SERIALIZE(ObExternalFileFormat::StringData)
{
int ret = OB_SUCCESS;
LST_DO_CODE(OB_UNIS_ENCODE, str_);
return ret;
}
OB_DEF_DESERIALIZE(ObExternalFileFormat::StringData)
{
int ret = OB_SUCCESS;
ObString temp_str;
LST_DO_CODE(OB_UNIS_DECODE, temp_str);
if (OB_SUCC(ret)) {
ret = store_str(temp_str);
}
return ret;
}
OB_DEF_SERIALIZE_SIZE(ObExternalFileFormat::StringData)
{
int64_t len = 0;
LST_DO_CODE(OB_UNIS_ADD_LEN, str_);
return len;
}
}
}