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fix: to_cstring may use lot of time and memory

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obdev
2023-09-15 14:10:12 +00:00
committed by ob-robot
parent 47089d3931
commit 0dbddf0b27
2 changed files with 33 additions and 30 deletions
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3
src/sql/engine/expr/ob_expr.h
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@ -1117,11 +1117,10 @@ inline const char *get_vectorized_row_str(ObEvalCtx &eval_ctx,
int64_t str_len = 0;
CStringBufMgr &mgr = CStringBufMgr::get_thread_local_instance();
mgr.inc_level();
buffer = mgr.acquire();
const int64_t buf_len = mgr.acquire(buffer);
if (OB_ISNULL(buffer)) {
LIB_LOG_RET(ERROR, OB_ALLOCATE_MEMORY_FAILED, "buffer is NULL");
} else {
const int64_t buf_len = mgr.get_buffer_len();
databuff_printf(buffer, buf_len, str_len, "vectorized_rows(%ld)=", index);
str_len += to_string(ROWEXPR2STR(eval_ctx, exprs), buffer + str_len, buf_len - str_len - 1);
if (str_len >= 0 && str_len < buf_len) {