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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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68
src/sql/engine/expr/ob_expr_util.cpp
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@ -16,6 +16,7 @@
#include "sql/session/ob_sql_session_info.h"
#include "sql/ob_sql_utils.h"
#include "common/ob_smart_call.h"
#include "sql/engine/expr/ob_expr_lob_utils.h"
#include "lib/charset/ob_charset.h"
using namespace oceanbase::common;
@ -452,29 +453,60 @@ int ObExprUtil::set_expr_ascii_result(const ObExpr &expr, ObEvalCtx &ctx, ObDatu
const common::ObCollationType src_coll_type)
{
int ret = OB_SUCCESS;
if (ascii.empty()) {
if (lib::is_oracle_mode()) {
expr_datum.set_null();
if (!ob_is_text_tc(expr.datum_meta_.type_)) {
if (ascii.empty()) {
if (lib::is_oracle_mode()) {
expr_datum.set_null();
} else {
expr_datum.set_string(ObString());
}
} else {
expr_datum.set_string(ObString());
ObArenaAllocator temp_allocator;
ObString out;
char *buf = NULL;
if (is_ascii && !ObCharset::is_cs_nonascii(expr.datum_meta_.cs_type_)) {
out = ascii;
} else if (OB_FAIL(ObCharset::charset_convert(temp_allocator, ascii, src_coll_type,
expr.datum_meta_.cs_type_, out))) {
LOG_WARN("charset convert failed", K(ret));
}
if (OB_FAIL(ret)) {
} else if (OB_ISNULL(buf = expr.get_str_res_mem(ctx, out.length(), datum_idx))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("allocate memory failed", K(ret), K(out.length()));
} else {
MEMCPY(buf, out.ptr(), out.length());
expr_datum.set_string(buf, out.length());
}
}
} else {
ObArenaAllocator temp_allocator;
} else { // text tc
ObArenaAllocator temp_allocator(ObModIds::OB_LOB_ACCESS_BUFFER, OB_MALLOC_NORMAL_BLOCK_SIZE, MTL_ID());
ObString out;
char *buf = NULL;
if (is_ascii && !ObCharset::is_cs_nonascii(expr.datum_meta_.cs_type_)) {
out = ascii;
} else if (OB_FAIL(ObCharset::charset_convert(temp_allocator, ascii, src_coll_type,
expr.datum_meta_.cs_type_, out))) {
LOG_WARN("charset convert failed", K(ret));
}
if (OB_FAIL(ret)) {
} else if (OB_ISNULL(buf = expr.get_str_res_mem(ctx, out.length(), datum_idx))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_WARN("allocate memory failed", K(ret), K(out.length()));
ObTextStringDatumResult res(expr.datum_meta_.type_, &expr, &ctx, &expr_datum);
if (ascii.empty()) {
if (lib::is_oracle_mode()) {
expr_datum.set_null();
} else if (OB_FAIL(res.init_with_batch_idx(0, datum_idx))) {
LOG_WARN("init text str result failed", K(ret));
} else {
res.set_result();
}
} else {
MEMCPY(buf, out.ptr(), out.length());
expr_datum.set_string(buf, out.length());
if (is_ascii && !ObCharset::is_cs_nonascii(expr.datum_meta_.cs_type_)) {
out = ascii;
} else if (OB_FAIL(ObCharset::charset_convert(temp_allocator, ascii, src_coll_type,
expr.datum_meta_.cs_type_, out))) {
LOG_WARN("charset convert failed", K(ret));
}
if (OB_FAIL(ret)) {
} else if (OB_FAIL(res.init_with_batch_idx(out.length(), datum_idx))) {
LOG_WARN("init text str result failed");
} else if (OB_FAIL(res.append(out.ptr(), out.length()))) {
LOG_WARN("append text str result failed", K(ret));
} else {
res.set_result();
}
}
}
return ret;