Merge 10.2 into 10.3

1 files changed, 7 insertions, 1 deletions

diff --git a/sql/field.cc b/sql/field.cc
index 4c0f1b0560b..61bc2daef8d 100644
--- a/sql/field.cc
+++ b/sql/field.cc
@@ -8217,7 +8217,13 @@ int Field_blob::store(const char *from,size_t length,CHARSET_INFO *cs)
     return 0;
   }
 
-  if (table->blob_storage)    // GROUP_CONCAT with ORDER BY | DISTINCT
+  /*
+    For min/max fields of statistical data 'table' is set to NULL.
+    It could not be otherwise as this data is shared by many instances
+    of the same base table.
+  */
+
+  if (table && table->blob_storage)    // GROUP_CONCAT with ORDER BY | DISTINCT
   {
     DBUG_ASSERT(!f_is_hex_escape(flags));
     DBUG_ASSERT(field_charset == cs);