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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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54
src/sql/engine/expr/ob_expr_time_format.cpp
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@ -17,6 +17,7 @@
#include "sql/engine/expr/ob_datum_cast.h"
#include "sql/engine/ob_exec_context.h"
#include "sql/engine/expr/ob_expr_util.h"
#include "sql/engine/expr/ob_expr_lob_utils.h"
namespace oceanbase
{
@ -240,20 +241,45 @@ int ObExprTimeFormat::calc_time_format(const ObExpr &expr, ObEvalCtx &ctx, ObDat
} else if (OB_UNLIKELY(format->get_string().empty())) {
expr_datum.set_null();
} else if (FALSE_IT(buf_len = format->get_string().length() * OB_TEMPORAL_BUF_SIZE_RATIO)) {
} else if (OB_ISNULL(buf = expr.get_str_res_mem(ctx, buf_len))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("no more memory to alloc for buf", K(ret), K(buf_len));
} else if (OB_FAIL(time_to_str_format(time->get_time(),
format->get_string(),
buf,
buf_len,
pos,
res_null))) {
LOG_WARN("failed to convert ob time to str with format");
} else if (res_null) {
expr_datum.set_null();
} else {
expr_datum.set_string(buf, static_cast<int32_t>(pos));
} else if (!ob_is_text_tc(expr.datum_meta_.type_)) {
if (OB_ISNULL(buf = expr.get_str_res_mem(ctx, buf_len))) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("no more memory to alloc for buf", K(ret), K(buf_len));
} else if (OB_FAIL(time_to_str_format(time->get_time(),
format->get_string(),
buf,
buf_len,
pos,
res_null))) {
LOG_WARN("failed to convert ob time to str with format");
} else if (res_null) {
expr_datum.set_null();
} else {
expr_datum.set_string(buf, static_cast<int32_t>(pos));
}
} else { // text tc
ObTextStringDatumResult output_result(expr.datum_meta_.type_, &expr, &ctx, &expr_datum);
if (OB_FAIL(output_result.init(buf_len))) {
LOG_WARN("init lob result failed", K(ret), K(buf_len));
} else if (OB_FAIL(output_result.get_reserved_buffer(buf, buf_len))) {
LOG_WARN("get reserved buffer for blob failed", K(ret), K(buf_len));
} else if (OB_ISNULL(buf)) {
ret = OB_ALLOCATE_MEMORY_FAILED;
LOG_ERROR("no more memory to alloc for buf", K(ret), K(buf_len));
} else if (OB_FAIL(time_to_str_format(time->get_time(),
format->get_string(),
buf,
buf_len,
pos,
res_null))) {
LOG_WARN("failed to convert ob time to lob str with format");
} else if (res_null) {
expr_datum.set_null();
} else if (OB_FAIL(output_result.lseek(pos, 0))){
LOG_WARN("lseek text or string result failed", K(ret), K(pos));
} else {
output_result.set_result();
}
}
return ret;
}