[FEAT MERGE] implement dynamic sampling

2023-04-27 12:15:28 +00:00
parent 56f85c9c76
commit f745b47cbc
86 changed files with 6754 additions and 2282 deletions
--- a/src/storage/access/ob_block_sample_iterator.h
+++ b/src/storage/access/ob_block_sample_iterator.h
@ -127,7 +127,7 @@ private:

 private:
  static const int64_t DEFAULT_SSTABLE_CNT = 9;
-  static const int64_t EXPECTED_MIN_MACRO_SAMPLE_BLOCK_COUNT = 5;
+  static const int64_t EXPECTED_MIN_MACRO_SAMPLE_BLOCK_COUNT = 2;
  static const int64_t EXPECTED_OPEN_RANGE_NUM = 8;
  const blocksstable::ObDatumRange *sample_range_;
  ObIAllocator *allocator_;