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Diffstat (limited to 'storage/innodb_plugin/row/row0upd.c')
-rw-r--r--storage/innodb_plugin/row/row0upd.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/storage/innodb_plugin/row/row0upd.c b/storage/innodb_plugin/row/row0upd.c
index 04c3139fcc7..444003ba3f0 100644
--- a/storage/innodb_plugin/row/row0upd.c
+++ b/storage/innodb_plugin/row/row0upd.c
@@ -466,8 +466,11 @@ row_upd_changes_field_size_or_external(
#endif /* !UNIV_HOTBACKUP */
/***********************************************************//**
-Replaces the new column values stored in the update vector to the record
-given. No field size changes are allowed. */
+Replaces the new column values stored in the update vector to the
+record given. No field size changes are allowed. This function is
+usually invoked on a clustered index. The only use case for a
+secondary index is row_ins_sec_index_entry_by_modify() or its
+counterpart in ibuf_insert_to_index_page(). */
UNIV_INTERN
void
row_upd_rec_in_place(