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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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27
src/sql/engine/expr/ob_expr_empty_lob.cpp
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@ -16,6 +16,7 @@
#include "sql/session/ob_sql_session_info.h"
#include "objit/common/ob_item_type.h"
#include "lib/oblog/ob_log.h"
#include "sql/engine/expr/ob_expr_lob_utils.h"
namespace oceanbase
{
@ -48,9 +49,16 @@ int ObExprEmptyClob::eval_empty_clob(
ObDatum &expr_datum)
{
int ret = OB_SUCCESS;
UNUSED(expr);
UNUSED(ctx);
expr_datum.set_string(NULL, 0);
if (expr.obj_meta_.has_lob_header()) {
ObTextStringDatumResult str_result(expr.datum_meta_.type_, &expr, &ctx, &expr_datum);
if (OB_FAIL(str_result.init(0))) {
LOG_WARN("init lob result failed");
} else {
str_result.set_result();
}
} else {
expr_datum.set_string(NULL, 0);
}
return ret;
}
@ -89,9 +97,16 @@ int ObExprEmptyBlob::eval_empty_blob(
ObDatum &expr_datum)
{
int ret = OB_SUCCESS;
UNUSED(expr);
UNUSED(ctx);
expr_datum.set_string(NULL, 0);
if (expr.obj_meta_.has_lob_header()) {
ObTextStringDatumResult str_result(expr.datum_meta_.type_, &expr, &ctx, &expr_datum);
if (OB_FAIL(str_result.init(0))) {
LOG_WARN("init lob result failed");
} else {
str_result.set_result();
}
} else {
expr_datum.set_string(NULL, 0);
}
return ret;
}