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[FEAT MERGE] Lob SQL refactoring (Mem-LobLocator, expressions and dbms_lob adaptions)

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Co-authored-by: chaser-ch <chaser.ch@antgroup.com>
This commit is contained in:
obdev
2023-01-28 20:40:15 +08:00
committed by ob-robot
parent 4bb1033505
commit 3d4f554258
350 changed files with 19091 additions and 3918 deletions
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17
src/share/ob_virtual_table_iterator.cpp
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@ -23,6 +23,7 @@
#include "sql/session/ob_sql_session_info.h"
#include "sql/das/ob_das_location_router.h"
#include "sql/engine/basic/ob_pushdown_filter.h"
#include "sql/engine/expr/ob_expr_lob_utils.h"
using namespace oceanbase::common;
using namespace oceanbase::share;
@ -343,7 +344,9 @@ int ObVirtualTableIterator::convert_output_row(ObNewRow *&cur_row)
for (int64_t i = 0; OB_SUCC(ret) && i < output_column_ids_.count(); ++i) {
const uint64_t column_id = output_column_ids_.at(i);
const ObColumnSchemaV2 *col_schema = cols_schema_.at(i);
if (cur_row->get_cell(i).is_null() || (cur_row->get_cell(i).is_string_type() && 0 == cur_row->get_cell(i).get_data_length())) {
if (cur_row->get_cell(i).is_null()
|| (cur_row->get_cell(i).is_string_type() && 0 == cur_row->get_cell(i).get_data_length())
|| ob_is_empty_lob(cur_row->get_cell(i))) {
convert_row_.cells_[i].set_null();
} else if (OB_FAIL(ObObjCaster::to_type(col_schema->get_data_type(),
col_schema->get_collation_type(),
@ -407,6 +410,14 @@ int ObVirtualTableIterator::get_next_row(ObNewRow *&row)
K(col_schema->get_data_type()), K(output_column_ids_));
}
}
if (OB_SUCC(ret)
&& is_lob_storage(col_schema->get_data_type())
&& !cur_row->cells_[i].has_lob_header()) { // cannot be json type;
ObObj &obj_convert = cur_row->cells_[i];
if (OB_FAIL(ObTextStringResult::ob_convert_obj_temporay_lob(obj_convert, *allocator_))) {
LOG_WARN("fail to add lob header", KR(ret), "object", cur_row->cells_[i]);
}
}
if (OB_SUCC(ret) && ob_is_string_tc(col_schema->get_data_type())
&& (col_schema->get_data_length() < cur_row->cells_[i].get_string_len()
// do charset convert when obj meta is different from expr meta
@ -473,6 +484,10 @@ int ObVirtualTableIterator::get_next_row()
ObDatum &datum = expr->locate_datum_for_write(scan_param_->op_->get_eval_ctx());
if (OB_FAIL(datum.from_obj(row->cells_[i], expr->obj_datum_map_))) {
LOG_WARN("convert ObObj to ObDatum failed", K(ret));
} else if (is_lob_storage(row->cells_[i].get_type()) &&
OB_FAIL(ob_adjust_lob_datum(row->cells_[i], expr->obj_meta_,
expr->obj_datum_map_, *allocator_, datum))) {
LOG_WARN("adjust lob datum failed", K(ret), K(i), K(row->cells_[i].get_meta()), K(expr->obj_meta_));
}
}
}