diff --git a/storage/innobase/row/row0sel.c b/storage/innobase/row/row0sel.c index 5030c6c9b50..b46b2eacd9d 100644 --- a/storage/innobase/row/row0sel.c +++ b/storage/innobase/row/row0sel.c @@ -4847,12 +4847,16 @@ row_search_autoinc_read_column( rec_offs_init(offsets_); - offsets = rec_get_offsets(rec, index, offsets, ULINT_UNDEFINED, &heap); + offsets = rec_get_offsets(rec, index, offsets, col_no + 1, &heap); + + if (rec_offs_nth_sql_null(offsets, col_no)) { + /* There is no non-NULL value in the auto-increment column. */ + value = 0; + goto func_exit; + } data = rec_get_nth_field(rec, offsets, col_no, &len); - ut_a(len != UNIV_SQL_NULL); - switch (mtype) { case DATA_INT: ut_a(len <= sizeof value); @@ -4873,14 +4877,15 @@ row_search_autoinc_read_column( ut_error; } - if (UNIV_LIKELY_NULL(heap)) { - mem_heap_free(heap); - } - if (!unsigned_type && (ib_int64_t) value < 0) { value = 0; } +func_exit: + if (UNIV_LIKELY_NULL(heap)) { + mem_heap_free(heap); + } + return(value); }