[CP] Limit the memory use of bloom filter to 2g

src/sql/engine/px/ob_px_bloom_filter.cpp

@@ -25,7 +25,7 @@ using namespace sql;
 using namespace obrpc;
 
 #define MIN_FILTER_SIZE 256
-#define MAX_BIT_COUNT 4611686018427387904 // 2^62
+#define MAX_BIT_COUNT 17179869184// 2^34 due to the memory single alloc limit
 #define BF_BLOCK_SIZE 256L
 #define BLOCK_MASK 255L         // = size of block - 1
 #define CACHE_LINE_SIZE 64      // 64 bytes

src/sql/optimizer/ob_log_join_filter.h

@@ -43,7 +43,16 @@ public:
   inline void set_filter_id(int64_t filter_id) { filter_id_ = filter_id; }
   inline int64_t get_filter_id() const { return filter_id_; }
   inline bool is_create_filter() { return is_create_; }
-  inline void set_filter_length(int64_t filter_len) { filter_len_ = filter_len; }
+  inline void set_filter_length(double filter_len)
+  {
+    if (filter_len <= 0) {
+      filter_len_ = 1;
+    } else if (filter_len > INT64_MAX) {
+      filter_len_ = INT64_MAX;
+    } else {
+      filter_len_ = filter_len;
+    }
+  }
   inline int64_t get_filter_length() const { return filter_len_; }
   inline void set_is_use_filter_shuffle(bool flag) { is_use_filter_shuffle_ = flag; }
   inline bool is_use_filter_shuffle() { return is_use_filter_shuffle_; }