Fix incorrect plan sharing causing crash

src/sql/plan_cache/ob_plan_cache.cpp

@@ -2312,6 +2312,7 @@ OB_INLINE int ObPlanCache::construct_plan_cache_key(ObSQLSessionInfo &session,
   pc_key.namespace_ = ns;
   pc_key.sys_vars_str_ = session.get_sys_var_in_pc_str();
   pc_key.config_str_ = session.get_config_in_pc_str();
+  pc_key.use_rich_vector_format_ = session.use_rich_format();
   pc_key.is_weak_read_ = is_weak;
   return ret;
 }

src/sql/plan_cache/ob_plan_cache_struct.h

@@ -56,7 +56,7 @@ struct ObPlanCacheKey : public ObILibCacheKey
         db_id_(common::OB_INVALID_ID),
         sessid_(0),
         mode_(PC_TEXT_MODE),
-        is_weak_read_(false) {}
+        flag_(0) {}
 
   inline void reset()
   {
@@ -67,7 +67,7 @@ struct ObPlanCacheKey : public ObILibCacheKey
     mode_ = PC_TEXT_MODE;
     sys_vars_str_.reset();
     config_str_.reset();
-    is_weak_read_ = false;
+    flag_ = 0;
     namespace_ = NS_INVALID;
   }
 
@@ -92,7 +92,7 @@ struct ObPlanCacheKey : public ObILibCacheKey
       sessid_ = pc_key.sessid_;
       mode_ = pc_key.mode_;
       namespace_ = pc_key.namespace_;
-      is_weak_read_ = pc_key.is_weak_read_;
+      flag_ = pc_key.flag_;
     }
     return ret;
   }
@@ -116,6 +116,7 @@ struct ObPlanCacheKey : public ObILibCacheKey
     hash_ret = common::murmurhash(&db_id_, sizeof(uint64_t), hash_ret);
     hash_ret = common::murmurhash(&sessid_, sizeof(uint32_t), hash_ret);
     hash_ret = common::murmurhash(&mode_, sizeof(PlanCacheMode), hash_ret);
+    hash_ret = common::murmurhash(&flag_, sizeof(flag_), hash_ret);
     hash_ret = sys_vars_str_.hash(hash_ret);
     hash_ret = config_str_.hash(hash_ret);
     hash_ret = common::murmurhash(&namespace_, sizeof(ObLibCacheNameSpace), hash_ret);
@@ -133,7 +134,7 @@ struct ObPlanCacheKey : public ObILibCacheKey
                    mode_ == pc_key.mode_ &&
                    sys_vars_str_ == pc_key.sys_vars_str_ &&
                    config_str_ == pc_key.config_str_ &&
-                   is_weak_read_ == pc_key.is_weak_read_ &&
+                   flag_ == pc_key.flag_ &&
                    namespace_ == pc_key.namespace_;
 
     return cmp_ret;
@@ -145,7 +146,7 @@ struct ObPlanCacheKey : public ObILibCacheKey
                K_(mode),
                K_(sys_vars_str),
                K_(config_str),
-               K_(is_weak_read),
+               K_(flag),
                K_(namespace));
   //通过name来进行查找，一般是shared sql/procedure
   //cursor用这种方式，对应的namespace是CRSR
@@ -158,7 +159,16 @@ struct ObPlanCacheKey : public ObILibCacheKey
   PlanCacheMode mode_;
   common::ObString sys_vars_str_;
   common::ObString config_str_;
-  bool is_weak_read_;
+  union
+  {
+    uint16_t flag_;
+    struct
+    {
+      uint16_t is_weak_read_ : 1;
+      uint16_t use_rich_vector_format_ : 1;
+      uint16_t reserved_ : 14; // reserved
+    };
+  };
 };
 
 //记录快速化参数后不需要扣参数的原始字符串及相关信息