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-rw-r--r--sql/sql_select.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sql/sql_select.h b/sql/sql_select.h
index 002c5a2df5a..a5fa59a070a 100644
--- a/sql/sql_select.h
+++ b/sql/sql_select.h
@@ -1456,6 +1456,7 @@ public:
virtual ~store_key() {} /** Not actually needed */
virtual enum Type type() const=0;
virtual const char *name() const=0;
+ virtual bool store_key_is_const() { return false; }
/**
@brief sets ignore truncation warnings mode and calls the real copy method
@@ -1609,6 +1610,7 @@ public:
enum Type type() const { return CONST_ITEM_STORE_KEY; }
const char *name() const { return "const"; }
+ bool store_key_is_const() { return true; }
protected:
enum store_key_result copy_inner()