zhagnlu 86322e0468
fix: fix query count(*) concurrently (#35007)
#34778
#34849
fix two problems:
1. count(*) incorrect, if growing insert duplicated (pk, timestamp)
pairs that pk and timestamp all same, need to keep just one pair.
2. count(*) may core dump, if get_real_count interface get snapshot and
do mvcc at not consistency status, mainly happens under concurrency.

Signed-off-by: luzhang <luzhang@zilliz.com>
Co-authored-by: luzhang <luzhang@zilliz.com>
2024-07-29 19:53:50 +08:00
..
2022-12-29 15:29:31 +08:00
2022-04-04 21:09:32 +08:00