MDEV-29199 Unique hash key is ignored upon INSERT ... SELECT into non-empty MyISAM table

disable bulk insert optimization if long uniques are used, because they
need to read the table (index_read) after every inserted now. And bulk
insert optimization might disable indexes.

bulk insert is already disabled in other cases when there are chances
that the table will be read duing the bulk insert.

3 files changed, 211 insertions, 97 deletions

diff --git a/mysql-test/main/long_unique_bugs.result b/mysql-test/main/long_unique_bugs.result
index f359913b5f4..0071beb7a24 100644
--- a/mysql-test/main/long_unique_bugs.result
+++ b/mysql-test/main/long_unique_bugs.result
@@ -1,3 +1,6 @@
+#
+# MDEV-18707 Server crash in my_hash_sort_bin, ASAN heap-use-after-free in Field::is_null, server hang, corrupted double-linked list
+#
 create table t1 (a int, b int, c int, d int, e int);
 insert into t1 () values
 (),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),
@@ -10,6 +13,9 @@ create temporary table tmp (a varchar(1024), b int, c int, d int, e linestring,
 load data infile 'load.data' into table tmp;
 delete from tmp;
 drop table t1;
+#
+# MDEV-18712 InnoDB indexes are inconsistent with what defined in .frm for table after rebuilding table with index on blob
+#
 create table t1 (b blob) engine=innodb;
 alter table t1 add unique (b);
 alter table t1 force;
@@ -20,12 +26,18 @@ t1	CREATE TABLE `t1` (
   UNIQUE KEY `b` (`b`) USING HASH
 ) ENGINE=InnoDB DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci
 drop table t1;
+#
+# MDEV-18713 Assertion `strcmp(share->unique_file_name,filename) || share->last_version' failed in test_if_reopen upon REPLACE into table with key on blob
+#
 create table t1 (pk int, b blob, primary key(pk), unique(b)) engine=myisam;
 insert into t1 values (1,'foo');
 replace into t1 (pk) values (1);
 alter table t1 force;
 replace into t1 (pk) values (1);
 drop table t1;
+#
+# MDEV-18722 Assertion `templ->mysql_null_bit_mask' failed in row_sel_store_mysql_rec upon modifying indexed column into blob
+#
 create table t1 (t time, unique(t)) engine=innodb;
 insert into t1 values (null),(null);
 alter ignore table t1 modify t text not null default '';
@@ -33,6 +45,9 @@ Warnings:
 Warning	1265	Data truncated for column 't' at row 1
 Warning	1265	Data truncated for column 't' at row 2
 drop table t1;
+#
+# MDEV-18720 Assertion `inited==NONE' failed in ha_index_init upon update on versioned table with key on blob
+#
 create table t1 ( pk int, f text, primary key (pk), unique(f)) with system versioning;
 insert into t1 values (1,'foo');
 update t1 set f = 'bar';
@@ -49,20 +64,32 @@ pk	f	row_end > DATE'2030-01-01'
 1	foo	0
 1	bar	0
 drop table t1;
+#
+# MDEV-18747 InnoDB: Failing assertion: table->get_ref_count() == 0 upon dropping temporary table with unique blob
+#
 create temporary table t1 (f blob, unique(f)) engine=innodb;
 insert into t1 values (1);
 replace into t1 values (1);
 drop table t1;
+#
+# MDEV-18748 REPLACE doesn't work with unique blobs on MyISAM table
+#
 create table t (b blob, unique(b)) engine=myisam;
 insert into t values ('foo');
 replace into t values ('foo');
 drop table t;
+#
+# MDEV-18790 Server crash in fields_in_hash_keyinfo after unsuccessful attempt to drop BLOB with long index
+#
 CREATE TABLE t1 (f INT, x BLOB, UNIQUE (x));
 INSERT INTO t1 VALUES (1,'foo');
 ALTER TABLE t1 DROP x, ALGORITHM=INPLACE;
 ERROR 0A000: ALGORITHM=INPLACE is not supported for this operation. Try ALGORITHM=COPY
 UPDATE t1 SET x = 'bar';
 DROP TABLE t1;
+#
+# MDEV-18799 Long unique does not work after failed alter table
+#
 create table t1(a blob unique , b blob);
 insert into t1 values(1,1),(2,1);
 alter table t1 add unique(b);
@@ -84,16 +111,26 @@ Index_comment
 insert into t1 values(1,1);
 ERROR 23000: Duplicate entry '1' for key 'a'
 DROP TABLE t1;
+#
+# MDEV-18792 ASAN unknown-crash in _mi_pack_key upon UPDATE after failed ALTER on a table with long BLOB key
+#
 CREATE TABLE t1 (a TEXT, b INT, UNIQUE(a)) ENGINE=MyISAM;
 ALTER TABLE t1 DROP x;
 ERROR 42000: Can't DROP COLUMN `x`; check that it exists
 UPDATE t1 SET b = 0 WHERE a = 'foo';
 DROP TABLE t1;
+#
+# MDEV-18793 Assertion `0' failed in row_sel_convert_mysql_key_to_innobase, ASAN unknown-crash in
+#    row_mysql_store_col_in_innobase_format, warning " InnoDB: Using a partial-field key prefix in search"
+#
 CREATE TABLE t1 (a TEXT, b INT, UNIQUE(a)) ENGINE=InnoDB;
 ALTER TABLE t1 DROP x;
 ERROR 42000: Can't DROP COLUMN `x`; check that it exists
 UPDATE t1 SET b = 0 WHERE a = 'foo';
 DROP TABLE t1;
+#
+# MDEV-18795 InnoDB: Failing assertion: field->prefix_len > 0 upon DML on table with BLOB index
+#
 CREATE TEMPORARY TABLE t1 (f BLOB, UNIQUE(f)) ENGINE=InnoDB ROW_FORMAT=COMPACT;
 ALTER TABLE t1 ADD KEY (f);
 ERROR HY000: Index column size too large. The maximum column size is 767 bytes
@@ -101,17 +138,29 @@ TRUNCATE TABLE t1;
 SELECT * FROM t1 WHERE f LIKE 'foo';
 f
 DROP TABLE t1;
+#
+# MDEV-18798 InnoDB: No matching column for `DB_ROW_HASH_1`and server crash in
+#   ha_innobase::commit_inplace_alter_table upon ALTER on table with UNIQUE key
+#
 CREATE TABLE t1 (a INT, UNIQUE ind USING HASH (a)) ENGINE=InnoDB;
 ALTER TABLE t1 CHANGE COLUMN IF EXISTS b a INT;
 Warnings:
 Note	1054	Unknown column 'b' in 't1'
 DROP TABLE t1;
+#
+# MDEV-18801 InnoDB: Failing assertion: field->col->mtype == type or ASAN heap-buffer-overflow
+#   in row_sel_convert_mysql_key_to_innobase upon SELECT on table with long index
+#
 CREATE TABLE t1 (f VARCHAR(4096), UNIQUE(f)) ENGINE=InnoDB;
 ALTER TABLE t1 DROP x;
 ERROR 42000: Can't DROP COLUMN `x`; check that it exists
 SELECT * FROM t1 WHERE f LIKE 'foo';
 f
 DROP TABLE t1;
+#
+# MDEV-18800 Server crash in instant_alter_column_possible or
+#   Assertion `!pk->has_virtual()' failed in instant_alter_column_possible upon adding key
+#
 CREATE TABLE t1 (pk INT, PRIMARY KEY USING HASH (pk)) ENGINE=InnoDB;
 show keys from t1;;
 Table	t1
@@ -129,6 +178,9 @@ Comment
 Index_comment	
 ALTER TABLE t1 ADD INDEX (pk);
 DROP TABLE t1;
+#
+# MDEV-18922 Alter on long unique varchar column makes result null
+#
 CREATE TABLE t1 (b int, a  varchar(4000));
 INSERT INTO t1 VALUES (1, 2),(2,3),(3,4);
 ALTER TABLE t1 ADD UNIQUE INDEX (a);
@@ -143,6 +195,10 @@ a
 3
 4
 drop table t1;
+#
+# MDEV-18809 Server crash in fields_in_hash_keyinfo or Assertion `key_info->key_part->field->flags
+# & (1<< 30)' failed in setup_keyinfo_hash
+#
 CREATE TABLE t1 (f VARCHAR(4096), UNIQUE(f)) ENGINE=InnoDB;
 ALTER TABLE t1 DROP KEY f, ADD INDEX idx1(f), ALGORITHM=INSTANT;
 ERROR 0A000: ALGORITHM=INSTANT is not supported. Reason: ADD INDEX. Try ALGORITHM=NOCOPY
@@ -158,6 +214,9 @@ insert into t1 values(1,1);
 ERROR 23000: Duplicate entry '1-1' for key 'a'
 alter table t1 add column c int;
 drop table t1;
+#
+# MDEV-18889 Long unique on virtual fields crashes server
+#
 create table t1(a blob , b blob as (a) unique);
 insert into t1 values(1, default);
 insert into t1 values(1, default);
@@ -171,6 +230,9 @@ insert into t1(a,b) values(2,2);
 insert into t1(a,b) values(2,3);
 insert into t1(a,b) values(3,2);
 drop table t1;
+#
+# MDEV-18888 Server crashes in Item_field::register_field_in_read_map upon MODIFY COLUMN
+#
 CREATE TABLE t1 ( 
 a CHAR(128),
 b CHAR(128) AS (a),
@@ -186,6 +248,9 @@ c varchar(5000),
 UNIQUE(c,b(64))
 ) ENGINE=InnoDB;
 drop table t1;
+#
+# MDEV-18967 Load data in system version with long unique does not work
+#
 CREATE TABLE t1 (data VARCHAR(4), unique(data) using hash) with system versioning;
 INSERT INTO t1 VALUES ('A');
 SELECT * INTO OUTFILE 'load.data' from t1;
@@ -195,6 +260,9 @@ select * from t1;
 data
 A
 DROP TABLE t1;
+#
+# MDEV-18901 Wrong results after ADD UNIQUE INDEX(blob_column)
+#
 CREATE TABLE t1 (data VARCHAR(7961)) ENGINE=InnoDB;
 INSERT INTO t1 VALUES ('f'), ('o'), ('o');
 SELECT * INTO OUTFILE 'load.data' from t1;
@@ -213,12 +281,16 @@ SELECT * FROM t1;
 data
 f
 o
+# This should be equivalent to the REPLACE above
 LOAD DATA INFILE 'load.data' REPLACE INTO TABLE t1;
 SELECT * FROM t1;
 data
 f
 o
 DROP TABLE t1;
+#
+# MDEV-18953 Hash index on partial char field not working
+#
 create table t1 (
 c char(10) character set utf8mb4,
 unique key a using hash (c(1))
@@ -235,10 +307,16 @@ ERROR 23000: Duplicate entry 'Ð' for key 'a'
 insert into t1 values ('ббб');
 ERROR 23000: Duplicate entry 'Ð' for key 'a'
 drop table t1;
+#
+# MDEV-18904 Assertion `m_part_spec.start_part >= m_part_spec.end_part' failed in ha_partition::index_read_idx_map
+#
 CREATE TABLE t1 (a INT, UNIQUE USING HASH (a)) PARTITION BY HASH (a) PARTITIONS 2;
 INSERT INTO t1 VALUES (2);
 REPLACE INTO t1 VALUES (2);
 DROP TABLE t1;
+#
+# MDEV-18820 Assertion `lock_table_has(trx, index->table, LOCK_IX)' failed in lock_rec_insert_check_and_lock upon INSERT into table with blob key'
+#
 set innodb_lock_wait_timeout= 10;
 CREATE TABLE t1 (
 id int primary key,
@@ -265,11 +343,20 @@ ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
 disconnect con1;
 connection default;
 DROP TABLE t1, t2;
+#
+# MDEV-18791 Wrong error upon creating Aria table with long index on BLOB
+#
 CREATE TABLE t1 (a TEXT, UNIQUE(a)) ENGINE=Aria;
 ERROR 42000: Specified key was too long; max key length is 1000 bytes
+#
+# MDEV-20001 Potential dangerous regression: INSERT INTO >=100 rows fail for myisam table with HASH indexes
+#
 create table t1(a int, unique(a) using hash);
 #BULK insert > 100 rows (MI_MIN_ROWS_TO_DISABLE_INDEXES)
 drop table t1;
+#
+# MDEV-21804 Assertion `marked_for_read()' failed upon INSERT into table with long unique blob under binlog_row_image=NOBLOB
+#
 SET binlog_row_image= NOBLOB;
 CREATE TABLE t1 (pk INT PRIMARY KEY, a text ,UNIQUE(a) using hash);
 INSERT INTO t1 VALUES (1,'foo');
@@ -277,6 +364,9 @@ create table t2(id int primary key, a blob, b varchar(20) as (LEFT(a,2)));
 INSERT INTO t2 VALUES (1, 'foo', default);
 DROP TABLE t1, t2;
 SET binlog_row_image= FULL;
+#
+# MDEV-22719 Long unique keys are not created when individual key_part->length < max_key_length but SUM(key_parts->length) > max_key_length
+#
 CREATE TABLE t1 (a int, b VARCHAR(1000), UNIQUE (a,b)) ENGINE=MyISAM;
 show index from t1;
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment	Index_comment
@@ -314,6 +404,9 @@ ERROR 23000: Duplicate entry '1' for key 'v2'
 update t1,t2 set v1 = v2 , v5 = 0;
 ERROR 23000: Duplicate entry '-128' for key 'v1'
 drop table t1, t2;
+#
+# MDEV-23264 Unique blobs allow duplicate values upon UPDATE
+#
 CREATE TABLE t1 (f TEXT UNIQUE);
 INSERT INTO t1 VALUES (NULL),(NULL);
 UPDATE t1 SET f = '';
@@ -343,5 +436,17 @@ partition n0 values less than (10),
 partition n1 values less than (50));
 drop table t1;
 #
+# MDEV-29199 Unique hash key is ignored upon INSERT ... SELECT into non-empty MyISAM table
+#
+create table t1 (a int, b text, unique(b)) engine=MyISAM;
+insert into t1 values (0,'aa');
+insert into t1 (a,b) select 1,'xxx' from seq_1_to_5;
+ERROR 23000: Duplicate entry 'xxx' for key 'b'
+select * from t1;
+a	b
+0	aa
+1	xxx
+drop table t1;
+#
 # End of 10.4 tests
 #
diff --git a/mysql-test/main/long_unique_bugs.test b/mysql-test/main/long_unique_bugs.test
index 9bef617ca90..f594038c375 100644
--- a/mysql-test/main/long_unique_bugs.test
+++ b/mysql-test/main/long_unique_bugs.test
@@ -1,9 +1,10 @@
 --source include/have_innodb.inc
 --source include/have_partition.inc
+--source include/have_sequence.inc
 
-#
-# MDEV-18707 Server crash in my_hash_sort_bin, ASAN heap-use-after-free in Field::is_null, server hang, corrupted double-linked list
-#
+--echo #
+--echo # MDEV-18707 Server crash in my_hash_sort_bin, ASAN heap-use-after-free in Field::is_null, server hang, corrupted double-linked list
+--echo #
 create table t1 (a int, b int, c int, d int, e int);
 insert into t1 () values
 (),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),(),
@@ -19,18 +20,18 @@ drop table t1;
 --let $datadir= `SELECT @@datadir`
 --remove_file $datadir/test/load.data
 
-#
-# MDEV-18712 InnoDB indexes are inconsistent with what defined in .frm for table after rebuilding table with index on blob
-#
+--echo #
+--echo # MDEV-18712 InnoDB indexes are inconsistent with what defined in .frm for table after rebuilding table with index on blob
+--echo #
 create table t1 (b blob) engine=innodb;
 alter table t1 add unique (b);
 alter table t1 force;
 show create table t1;
 drop table t1;
 
-#
-# MDEV-18713 Assertion `strcmp(share->unique_file_name,filename) || share->last_version' failed in test_if_reopen upon REPLACE into table with key on blob
-#
+--echo #
+--echo # MDEV-18713 Assertion `strcmp(share->unique_file_name,filename) || share->last_version' failed in test_if_reopen upon REPLACE into table with key on blob
+--echo #
 create table t1 (pk int, b blob, primary key(pk), unique(b)) engine=myisam;
 insert into t1 values (1,'foo');
 replace into t1 (pk) values (1);
@@ -38,17 +39,17 @@ alter table t1 force;
 replace into t1 (pk) values (1);
 drop table t1;
 
-#
-# MDEV-18722 Assertion `templ->mysql_null_bit_mask' failed in row_sel_store_mysql_rec upon modifying indexed column into blob
-#
+--echo #
+--echo # MDEV-18722 Assertion `templ->mysql_null_bit_mask' failed in row_sel_store_mysql_rec upon modifying indexed column into blob
+--echo #
 create table t1 (t time, unique(t)) engine=innodb;
 insert into t1 values (null),(null);
 alter ignore table t1 modify t text not null default '';
 drop table t1;
 
-#
-# MDEV-18720 Assertion `inited==NONE' failed in ha_index_init upon update on versioned table with key on blob
-#
+--echo #
+--echo # MDEV-18720 Assertion `inited==NONE' failed in ha_index_init upon update on versioned table with key on blob
+--echo #
 create table t1 ( pk int, f text, primary key (pk), unique(f)) with system versioning;
 insert into t1 values (1,'foo');
 update t1 set f = 'bar';
@@ -58,25 +59,25 @@ select * from t1;
 select pk, f, row_end > DATE'2030-01-01' from t1 for system_time all;
 drop table t1;
 
-#
-# MDEV-18747 InnoDB: Failing assertion: table->get_ref_count() == 0 upon dropping temporary table with unique blob
-#
+--echo #
+--echo # MDEV-18747 InnoDB: Failing assertion: table->get_ref_count() == 0 upon dropping temporary table with unique blob
+--echo #
 create temporary table t1 (f blob, unique(f)) engine=innodb;
 insert into t1 values (1);
 replace into t1 values (1);
 drop table t1;
 
-#
-# MDEV-18748 REPLACE doesn't work with unique blobs on MyISAM table
-#
+--echo #
+--echo # MDEV-18748 REPLACE doesn't work with unique blobs on MyISAM table
+--echo #
 create table t (b blob, unique(b)) engine=myisam;
 insert into t values ('foo');
 replace into t values ('foo');
 drop table t;
 
-#
-# MDEV-18790 Server crash in fields_in_hash_keyinfo after unsuccessful attempt to drop BLOB with long index
-#
+--echo #
+--echo # MDEV-18790 Server crash in fields_in_hash_keyinfo after unsuccessful attempt to drop BLOB with long index
+--echo #
 CREATE TABLE t1 (f INT, x BLOB, UNIQUE (x));
 INSERT INTO t1 VALUES (1,'foo');
 --error ER_ALTER_OPERATION_NOT_SUPPORTED
@@ -84,9 +85,9 @@ ALTER TABLE t1 DROP x, ALGORITHM=INPLACE;
 UPDATE t1 SET x = 'bar';
 DROP TABLE t1;
 
-#
-# MDEV-18799 Long unique does not work after failed alter table
-#
+--echo #
+--echo # MDEV-18799 Long unique does not work after failed alter table
+--echo #
 create table t1(a blob unique , b blob);
 insert into t1 values(1,1),(2,1);
 --error ER_DUP_ENTRY
@@ -96,28 +97,28 @@ alter table t1 add unique(b);
 insert into t1 values(1,1);
 DROP TABLE t1;
 
-#
-# MDEV-18792 ASAN unknown-crash in _mi_pack_key upon UPDATE after failed ALTER on a table with long BLOB key
-#
+--echo #
+--echo # MDEV-18792 ASAN unknown-crash in _mi_pack_key upon UPDATE after failed ALTER on a table with long BLOB key
+--echo #
 CREATE TABLE t1 (a TEXT, b INT, UNIQUE(a)) ENGINE=MyISAM;
 --error ER_CANT_DROP_FIELD_OR_KEY
 ALTER TABLE t1 DROP x;
 UPDATE t1 SET b = 0 WHERE a = 'foo';
 DROP TABLE t1;
 
-#
-# MDEV-18793 Assertion `0' failed in row_sel_convert_mysql_key_to_innobase, ASAN unknown-crash in
-#    row_mysql_store_col_in_innobase_format, warning " InnoDB: Using a partial-field key prefix in search"
-#
+--echo #
+--echo # MDEV-18793 Assertion `0' failed in row_sel_convert_mysql_key_to_innobase, ASAN unknown-crash in
+--echo #    row_mysql_store_col_in_innobase_format, warning " InnoDB: Using a partial-field key prefix in search"
+--echo #
 CREATE TABLE t1 (a TEXT, b INT, UNIQUE(a)) ENGINE=InnoDB;
 --error ER_CANT_DROP_FIELD_OR_KEY
 ALTER TABLE t1 DROP x;
 UPDATE t1 SET b = 0 WHERE a = 'foo';
 DROP TABLE t1;
 
-#
-# MDEV-18795 InnoDB: Failing assertion: field->prefix_len > 0 upon DML on table with BLOB index
-#
+--echo #
+--echo # MDEV-18795 InnoDB: Failing assertion: field->prefix_len > 0 upon DML on table with BLOB index
+--echo #
 CREATE TEMPORARY TABLE t1 (f BLOB, UNIQUE(f)) ENGINE=InnoDB ROW_FORMAT=COMPACT;
 --error ER_INDEX_COLUMN_TOO_LONG
 ALTER TABLE t1 ADD KEY (f);
@@ -125,36 +126,36 @@ TRUNCATE TABLE t1;
 SELECT * FROM t1 WHERE f LIKE 'foo';
 DROP TABLE t1;
 
-#
-# MDEV-18798 InnoDB: No matching column for `DB_ROW_HASH_1`and server crash in
-#   ha_innobase::commit_inplace_alter_table upon ALTER on table with UNIQUE key
-#
+--echo #
+--echo # MDEV-18798 InnoDB: No matching column for `DB_ROW_HASH_1`and server crash in
+--echo #   ha_innobase::commit_inplace_alter_table upon ALTER on table with UNIQUE key
+--echo #
 CREATE TABLE t1 (a INT, UNIQUE ind USING HASH (a)) ENGINE=InnoDB;
 ALTER TABLE t1 CHANGE COLUMN IF EXISTS b a INT;
 DROP TABLE t1;
 
-#
-# MDEV-18801 InnoDB: Failing assertion: field->col->mtype == type or ASAN heap-buffer-overflow
-#   in row_sel_convert_mysql_key_to_innobase upon SELECT on table with long index
-#
+--echo #
+--echo # MDEV-18801 InnoDB: Failing assertion: field->col->mtype == type or ASAN heap-buffer-overflow
+--echo #   in row_sel_convert_mysql_key_to_innobase upon SELECT on table with long index
+--echo #
 CREATE TABLE t1 (f VARCHAR(4096), UNIQUE(f)) ENGINE=InnoDB;
 --error ER_CANT_DROP_FIELD_OR_KEY
 ALTER TABLE t1 DROP x;
 SELECT * FROM t1 WHERE f LIKE 'foo';
 DROP TABLE t1;
 
-#
-# MDEV-18800 Server crash in instant_alter_column_possible or
-#   Assertion `!pk->has_virtual()' failed in instant_alter_column_possible upon adding key
-#
+--echo #
+--echo # MDEV-18800 Server crash in instant_alter_column_possible or
+--echo #   Assertion `!pk->has_virtual()' failed in instant_alter_column_possible upon adding key
+--echo #
 CREATE TABLE t1 (pk INT, PRIMARY KEY USING HASH (pk)) ENGINE=InnoDB;
 --query_vertical show keys from t1;
 ALTER TABLE t1 ADD INDEX (pk);
 DROP TABLE t1;
 
-#
-# MDEV-18922 Alter on long unique varchar column makes result null
-#
+--echo #
+--echo # MDEV-18922 Alter on long unique varchar column makes result null
+--echo #
 CREATE TABLE t1 (b int, a  varchar(4000));
 INSERT INTO t1 VALUES (1, 2),(2,3),(3,4);
 ALTER TABLE t1 ADD UNIQUE INDEX (a);
@@ -162,10 +163,10 @@ SELECT * FROM t1;
 SELECT a FROM t1;
 drop table t1;
 
-#
-# MDEV-18809 Server crash in fields_in_hash_keyinfo or Assertion `key_info->key_part->field->flags
-# & (1<< 30)' failed in setup_keyinfo_hash
-#
+--echo #
+--echo # MDEV-18809 Server crash in fields_in_hash_keyinfo or Assertion `key_info->key_part->field->flags
+--echo # & (1<< 30)' failed in setup_keyinfo_hash
+--echo #
 CREATE TABLE t1 (f VARCHAR(4096), UNIQUE(f)) ENGINE=InnoDB;
 --error ER_ALTER_OPERATION_NOT_SUPPORTED_REASON
 ALTER TABLE t1 DROP KEY f, ADD INDEX idx1(f), ALGORITHM=INSTANT;
@@ -180,9 +181,9 @@ insert into t1 values(1,1);
 alter table t1 add column c int;
 drop table t1;
 
-#
-# MDEV-18889 Long unique on virtual fields crashes server
-#
+--echo #
+--echo # MDEV-18889 Long unique on virtual fields crashes server
+--echo #
 create table t1(a blob , b blob as (a) unique);
 insert into t1 values(1, default);
 --error ER_DUP_ENTRY
@@ -198,9 +199,9 @@ insert into t1(a,b) values(2,3);
 insert into t1(a,b) values(3,2);
 drop table t1;
 
-#
-# MDEV-18888 Server crashes in Item_field::register_field_in_read_map upon MODIFY COLUMN
-#
+--echo #
+--echo # MDEV-18888 Server crashes in Item_field::register_field_in_read_map upon MODIFY COLUMN
+--echo #
 CREATE TABLE t1 ( 
   a CHAR(128),
   b CHAR(128) AS (a),
@@ -217,9 +218,9 @@ CREATE TABLE t1 (
 ) ENGINE=InnoDB;
 drop table t1;
 
-#
-# MDEV-18967 Load data in system version with long unique does not work
-#
+--echo #
+--echo # MDEV-18967 Load data in system version with long unique does not work
+--echo #
 CREATE TABLE t1 (data VARCHAR(4), unique(data) using hash) with system versioning;
 INSERT INTO t1 VALUES ('A');
 SELECT * INTO OUTFILE 'load.data' from t1;
@@ -230,9 +231,9 @@ DROP TABLE t1;
 --let $datadir= `select @@datadir`
 --remove_file $datadir/test/load.data
 
-#
-# MDEV-18901 Wrong results after ADD UNIQUE INDEX(blob_column)
-#
+--echo #
+--echo # MDEV-18901 Wrong results after ADD UNIQUE INDEX(blob_column)
+--echo #
 CREATE TABLE t1 (data VARCHAR(7961)) ENGINE=InnoDB;
 
 INSERT INTO t1 VALUES ('f'), ('o'), ('o');
@@ -244,16 +245,16 @@ ALTER TABLE t1 ADD SYSTEM VERSIONING ;
 SELECT * FROM t1;
 REPLACE INTO t1 VALUES ('f'), ('o'), ('o');
 SELECT * FROM t1;
-# This should be equivalent to the REPLACE above
+--echo # This should be equivalent to the REPLACE above
 LOAD DATA INFILE 'load.data' REPLACE INTO TABLE t1;
 SELECT * FROM t1;
 DROP TABLE t1;
 --let $datadir= `select @@datadir`
 --remove_file $datadir/test/load.data
 
-#
-# MDEV-18953 Hash index on partial char field not working
-#
+--echo #
+--echo # MDEV-18953 Hash index on partial char field not working
+--echo #
 create table t1 (
  c char(10) character set utf8mb4,
  unique key a using hash (c(1))
@@ -266,17 +267,17 @@ insert into t1 values ('бб');
 insert into t1 values ('ббб');
 drop table t1;
 
-#
-# MDEV-18904 Assertion `m_part_spec.start_part >= m_part_spec.end_part' failed in ha_partition::index_read_idx_map
-#
+--echo #
+--echo # MDEV-18904 Assertion `m_part_spec.start_part >= m_part_spec.end_part' failed in ha_partition::index_read_idx_map
+--echo #
 CREATE TABLE t1 (a INT, UNIQUE USING HASH (a)) PARTITION BY HASH (a) PARTITIONS 2;
 INSERT INTO t1 VALUES (2);
 REPLACE INTO t1 VALUES (2);
 DROP TABLE t1;
 
-#
-# MDEV-18820 Assertion `lock_table_has(trx, index->table, LOCK_IX)' failed in lock_rec_insert_check_and_lock upon INSERT into table with blob key'
-#
+--echo #
+--echo # MDEV-18820 Assertion `lock_table_has(trx, index->table, LOCK_IX)' failed in lock_rec_insert_check_and_lock upon INSERT into table with blob key'
+--echo #
 
 set innodb_lock_wait_timeout= 10;
 
@@ -316,15 +317,15 @@ INSERT IGNORE INTO t1 VALUES (4, 1)/*4*/;
 --connection default
 DROP TABLE t1, t2;
 
-#
-# MDEV-18791 Wrong error upon creating Aria table with long index on BLOB
-#
+--echo #
+--echo # MDEV-18791 Wrong error upon creating Aria table with long index on BLOB
+--echo #
 --error ER_TOO_LONG_KEY
 CREATE TABLE t1 (a TEXT, UNIQUE(a)) ENGINE=Aria;
 
-#
-# MDEV-20001 Potential dangerous regression: INSERT INTO >=100 rows fail for myisam table with HASH indexes
-#
+--echo #
+--echo # MDEV-20001 Potential dangerous regression: INSERT INTO >=100 rows fail for myisam table with HASH indexes
+--echo #
 create table t1(a int, unique(a) using hash);
 --let $count=150
 --let insert_stmt= insert into t1 values(200)
@@ -339,9 +340,9 @@ while ($count)
 --enable_query_log
 drop table t1;
 
-#
-# MDEV-21804 Assertion `marked_for_read()' failed upon INSERT into table with long unique blob under binlog_row_image=NOBLOB
-#
+--echo #
+--echo # MDEV-21804 Assertion `marked_for_read()' failed upon INSERT into table with long unique blob under binlog_row_image=NOBLOB
+--echo #
 
 --source include/have_binlog_format_row.inc
 SET binlog_row_image= NOBLOB;
@@ -351,20 +352,17 @@ INSERT INTO t1 VALUES (1,'foo');
 create table t2(id int primary key, a blob, b varchar(20) as (LEFT(a,2)));
 INSERT INTO t2 VALUES (1, 'foo', default);
 
-# Cleanup
 DROP TABLE t1, t2;
 SET binlog_row_image= FULL;
 
-#
-# MDEV-22719 Long unique keys are not created when individual key_part->length < max_key_length but SUM(key_parts->length) > max_key_length
-#
+--echo #
+--echo # MDEV-22719 Long unique keys are not created when individual key_part->length < max_key_length but SUM(key_parts->length) > max_key_length
+--echo #
 
 CREATE TABLE t1 (a int, b VARCHAR(1000), UNIQUE (a,b)) ENGINE=MyISAM;
 show index from t1;
 CREATE TABLE t2 (a varchar(900), b VARCHAR(900), UNIQUE (a,b)) ENGINE=MyISAM;
 show index from t2;
-
-# Cleanup
 DROP TABLE t1,t2;
 
 --echo #
@@ -396,9 +394,9 @@ update t1 set v2 = 1, v3 = -128;
 update t1,t2 set v1 = v2 , v5 = 0;
 drop table t1, t2;
 
-#
-# MDEV-23264 Unique blobs allow duplicate values upon UPDATE
-#
+--echo #
+--echo # MDEV-23264 Unique blobs allow duplicate values upon UPDATE
+--echo #
 
 CREATE TABLE t1 (f TEXT UNIQUE);
 INSERT INTO t1 VALUES (NULL),(NULL);
@@ -435,5 +433,15 @@ alter table t1 reorganize partition p1 into (
 drop table t1;
 
 --echo #
+--echo # MDEV-29199 Unique hash key is ignored upon INSERT ... SELECT into non-empty MyISAM table
+--echo #
+create table t1 (a int, b text, unique(b)) engine=MyISAM;
+insert into t1 values (0,'aa');
+--error ER_DUP_ENTRY
+insert into t1 (a,b) select 1,'xxx' from seq_1_to_5;
+select * from t1;
+drop table t1;
+
+--echo #
 --echo # End of 10.4 tests
 --echo #
diff --git a/sql/sql_insert.cc b/sql/sql_insert.cc
index d56ccdff2a7..f31c9eab428 100644
--- a/sql/sql_insert.cc
+++ b/sql/sql_insert.cc
@@ -3846,7 +3846,8 @@ select_insert::prepare(List<Item> &values, SELECT_LEX_UNIT *u)
     lex->current_select->join->select_options|= OPTION_BUFFER_RESULT;
   }
   else if (!(lex->current_select->options & OPTION_BUFFER_RESULT) &&
-           thd->locked_tables_mode <= LTM_LOCK_TABLES)
+           thd->locked_tables_mode <= LTM_LOCK_TABLES &&
+           !table->s->long_unique_table)
   {
     /*
       We must not yet prepare the result table if it is the same as one of the