Merge 10.1 into 10.2

3 files changed, 10 insertions, 5 deletions

diff --git a/storage/mroonga/ha_mroonga.cpp b/storage/mroonga/ha_mroonga.cpp
index 7737c2af6fc..bf0c1eab3e3 100644
--- a/storage/mroonga/ha_mroonga.cpp
+++ b/storage/mroonga/ha_mroonga.cpp
@@ -11810,7 +11810,8 @@ int ha_mroonga::storage_encode_key_timestamp2(Field *field, const uchar *key,
 #endif
 
 #ifdef MRN_HAVE_MYSQL_TYPE_DATETIME2
-int ha_mroonga::storage_encode_key_datetime2(Field *field, const uchar *key,
+int ha_mroonga::storage_encode_key_datetime2(Field *field, bool is_null,
+                                             const uchar *key,
                                              uchar *buf, uint *size)
 {
   MRN_DBUG_ENTER_METHOD();
@@ -11818,7 +11819,7 @@ int ha_mroonga::storage_encode_key_datetime2(Field *field, const uchar *key,
   bool truncated = false;
 
   Field_datetimef *datetime2_field = (Field_datetimef *)field;
-  longlong packed_time =
+  longlong packed_time = is_null ? 0 :
     my_datetime_packed_from_binary(key, datetime2_field->decimals());
   MYSQL_TIME mysql_time;
   TIME_from_longlong_datetime_packed(&mysql_time, packed_time);
@@ -11945,6 +11946,7 @@ int ha_mroonga::storage_encode_key(Field *field, const uchar *key,
   MRN_DBUG_ENTER_METHOD();
   int error;
   bool truncated = false;
+  bool is_null = false;
   const uchar *ptr = key;
 
   error = mrn_change_encoding(ctx, field->charset());
@@ -11952,6 +11954,7 @@ int ha_mroonga::storage_encode_key(Field *field, const uchar *key,
     DBUG_RETURN(error);
 
   if (field->null_bit) {
+    is_null = *ptr;
     ptr += 1;
   }
 
@@ -12049,7 +12052,7 @@ int ha_mroonga::storage_encode_key(Field *field, const uchar *key,
 #endif
 #ifdef MRN_HAVE_MYSQL_TYPE_DATETIME2
   case MYSQL_TYPE_DATETIME2:
-    error = storage_encode_key_datetime2(field, ptr, buf, size);
+    error = storage_encode_key_datetime2(field, is_null, ptr, buf, size);
     break;
 #endif
 #ifdef MRN_HAVE_MYSQL_TYPE_TIME2
diff --git a/storage/mroonga/ha_mroonga.hpp b/storage/mroonga/ha_mroonga.hpp
index b769583d434..71ec40ee63a 100644
--- a/storage/mroonga/ha_mroonga.hpp
+++ b/storage/mroonga/ha_mroonga.hpp
@@ -796,7 +796,7 @@ private:
                                     uchar *buf, uint *size);
 #endif
 #ifdef MRN_HAVE_MYSQL_TYPE_DATETIME2
-  int storage_encode_key_datetime2(Field *field, const uchar *key,
+  int storage_encode_key_datetime2(Field *field, bool is_null, const uchar *key,
                                    uchar *buf, uint *size);
 #endif
 #ifdef MRN_HAVE_MYSQL_TYPE_TIME2
diff --git a/storage/mroonga/lib/mrn_multiple_column_key_codec.cpp b/storage/mroonga/lib/mrn_multiple_column_key_codec.cpp
index 0038a7fe34f..fa3c49a4236 100644
--- a/storage/mroonga/lib/mrn_multiple_column_key_codec.cpp
+++ b/storage/mroonga/lib/mrn_multiple_column_key_codec.cpp
@@ -89,11 +89,13 @@ namespace mrn {
     for (int i = 0; i < n_key_parts && current_mysql_key < mysql_key_end; i++) {
       KEY_PART_INFO *key_part = &(key_info_->key_part[i]);
       Field *field = key_part->field;
+      bool is_null = false;
       DBUG_PRINT("info", ("mroonga: key_part->length=%u", key_part->length));
 
       if (field->null_bit) {
         DBUG_PRINT("info", ("mroonga: field has null bit"));
         *current_grn_key = 0;
+        is_null = *current_mysql_key;
         current_mysql_key += 1;
         current_grn_key += 1;
         (*grn_key_length)++;
@@ -164,7 +166,7 @@ namespace mrn {
         {
           Field_datetimef *datetimef_field =
             static_cast<Field_datetimef *>(field);
-          long long int mysql_datetime_packed =
+          long long int mysql_datetime_packed = is_null ? 0 :
             my_datetime_packed_from_binary(current_mysql_key,
                                            datetimef_field->decimals());
           MYSQL_TIME mysql_time;