2017-01-02 16:46:25 0x7f3184e4a300  InnoDB: Assertion failure in thread 139850659701504 in file row0row.cc line 132

InnoDB: Failing assertion: dfield_is_null(dfield2) || dfield2->data

#6  0x00007f3184409995 in ut_dbg_assertion_failed (expr=0x7f3184926e28 "dfield_is_null(dfield2) || dfield2->data", file=0x7f3184926d98 "/data/src/10.2/storage/innobase/row/row0row.cc", line=132) at /data/src/10.2/storage/innobase/ut/ut0dbg.cc:67

#7  0x00007f3184357016 in row_build_index_entry_low (row=0x7f315adf8588, ext=0x0, index=0x7f315ad66108, heap=0x7f315ac29300, flag=0) at /data/src/10.2/storage/innobase/row/row0row.cc:132

#8  0x00007f3184386a70 in row_build_index_entry (row=0x7f315adf8588, ext=0x0, index=0x7f315ad66108, heap=0x7f315ac29300) at /data/src/10.2/storage/innobase/include/row0row.ic:130

#9  0x00007f318438b8e1 in row_upd_sec_index_entry (node=0x7f315ade1c70, thr=0x7f315ade3088) at /data/src/10.2/storage/innobase/row/row0upd.cc:2265

#10 0x00007f318438c6c4 in row_upd_sec_step (node=0x7f315ade1c70, thr=0x7f315ade3088) at /data/src/10.2/storage/innobase/row/row0upd.cc:2521

#11 0x00007f318438eccf in row_upd (node=0x7f315ade1c70, thr=0x7f315ade3088) at /data/src/10.2/storage/innobase/row/row0upd.cc:3307

#12 0x00007f318438f034 in row_upd_step (thr=0x7f315ade3088) at /data/src/10.2/storage/innobase/row/row0upd.cc:3424

#13 0x00007f318432f349 in row_update_for_mysql_using_upd_graph (mysql_rec=0x7f315ac28eb8 "\376\001", prebuilt=0x7f315ade1088) at /data/src/10.2/storage/innobase/row/row0mysql.cc:1982

#14 0x00007f318432fe87 in row_update_for_mysql (mysql_rec=0x7f315ac28eb8 "\376\001", prebuilt=0x7f315ade1088) at /data/src/10.2/storage/innobase/row/row0mysql.cc:2191

#15 0x00007f31841e418a in ha_innobase::update_row (this=0x7f315acb7888, old_row=0x7f315ac28eb8 "\376\001", new_row=0x7f315ac28e88 "\374\001") at /data/src/10.2/storage/innobase/handler/ha_innodb.cc:9859

#16 0x00007f3183fa7284 in handler::ha_update_row (this=0x7f315acb7888, old_data=0x7f315ac28eb8 "\376\001", new_data=0x7f315ac28e88 "\374\001") at /data/src/10.2/sql/handler.cc:5992

#17 0x00007f3183e19022 in mysql_update (thd=0x7f315ac16070, table_list=0x7f315ac64190, fields=..., values=..., conds=0x7f315ac64b10, order_num=0, order=0x0, limit=18446744073709551615, handle_duplicates=DUP_ERROR, ignore=false, found_return=0x7f3184e48450, updated_return=0x7f3184e48500) at /data/src/10.2/sql/sql_update.cc:817

#18 0x00007f3183d3354a in mysql_execute_command (thd=0x7f315ac16070) at /data/src/10.2/sql/sql_parse.cc:4219

#19 0x00007f3183d3f080 in mysql_parse (thd=0x7f315ac16070, rawbuf=0x7f315ac64088 "UPDATE t1 SET col_char = 'foo' WHERE pk = 1", length=43, parser_state=0x7f3184e48dd0, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:7839

#20 0x00007f3183d2cc46 in dispatch_command (command=COM_QUERY, thd=0x7f315ac16070, packet=0x7f315ac58071 "UPDATE t1 SET col_char = 'foo' WHERE pk = 1", packet_length=43, is_com_multi=false, is_next_command=false) at /data/src/10.2/sql/sql_parse.cc:1799

#21 0x00007f3183d2b620 in do_command (thd=0x7f315ac16070) at /data/src/10.2/sql/sql_parse.cc:1359

#22 0x00007f3183e733d2 in do_handle_one_connection (connect=0x7f3180871f70) at /data/src/10.2/sql/sql_connect.cc:1354

#23 0x00007f3183e7315f in handle_one_connection (arg=0x7f3180871f70) at /data/src/10.2/sql/sql_connect.cc:1260

#24 0x00007f31841b1d64 in pfs_spawn_thread (arg=0x7f316dfed770) at /data/src/10.2/storage/perfschema/pfs.cc:1862

#25 0x00007f318335f0a4 in start_thread (arg=0x7f3184e4a300) at pthread_create.c:309

#26 0x00007f318130c87d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

--source include/have_innodb.inc

CREATE TABLE t1 ( 

 pk INT,

 col_blob MEDIUMTEXT NOT NULL DEFAULT '',

 vcol_blob TINYBLOB AS (col_blob) VIRTUAL,

 col_char CHAR(22) NULL,

 PRIMARY KEY(pk),

 INDEX(col_char,vcol_blob(64))

 ) ENGINE=InnoDB;

INSERT IGNORE INTO t1 (pk) VALUES (1),(2);

UPDATE t1 SET col_char = 'foo' WHERE pk = 1;