MariaDB [joints]>  SHOW CREATE TABLE 774_study;

| Table     | Create Table                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    

| 774_study | CREATE TABLE `774_study` (

  `received` datetime(6) NOT NULL,

  `siuid` varchar(64) NOT NULL,

  `patientID` int(10) unsigned NOT NULL,

  `refphys` varchar(100) NOT NULL,

  `institution` varchar(64) NOT NULL,

  `sdate` date NOT NULL,

  `stime` time NOT NULL,

  `sdesc` varchar(64) NOT NULL,

  `modality` varchar(8) NOT NULL,

  `bodypart` varchar(32) NOT NULL,

  `acnum` varchar(32) NOT NULL,

  `backedup` datetime(6) NOT NULL,

  `modified` datetime(6) NOT NULL,

  `accessed` datetime(6) NOT NULL,

  `numimages` smallint(5) unsigned NOT NULL,

  `numsnapshots` smallint(5) unsigned NOT NULL,

  `numattachments` smallint(5) unsigned DEFAULT NULL,

  `tsuid` varchar(28) NOT NULL,

  `orderedSOPs` mediumtext DEFAULT NULL,

  `cached` tinyint(1) NOT NULL DEFAULT 0,

  PRIMARY KEY (`received`),

  UNIQUE KEY `idx_774_study_siuid` (`siuid`),

  KEY `idx_774_study_patientID` (`patientID`),

  KEY `idx_774_study_sdate` (`sdate`),

  CONSTRAINT `fk_774_study_patientID` FOREIGN KEY (`patientID`) REFERENCES `774_patient` (`patientID`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8 |

| Table       | Create Table                                                                                                                                                                                                                                                                                                                                                                                                 

| 774_patient | CREATE TABLE `774_patient` (

  `patientID` int(10) unsigned NOT NULL AUTO_INCREMENT,

  `patientStatus` tinyint(3) unsigned NOT NULL,

  `pid` varchar(64) NOT NULL,

  `pname` varchar(100) NOT NULL,

  `dob` date NOT NULL,

  `sex` enum('M','F','O') NOT NULL DEFAULT 'O',

  PRIMARY KEY (`patientID`),

  UNIQUE KEY `idx_774_patient_pid` (`pid`)

) ENGINE=InnoDB AUTO_INCREMENT=317145 DEFAULT CHARSET=utf8 |

MariaDB [joints]> explain select 774_study.patientID AS patientID, 774_patient.patientStatus AS patientStatus, 774_patient.pid AS pid, 774_patient.pname AS pname, 774_patient.dob AS dob, 774_patient.sex AS sex, 774_study.received AS received, 774_study.sdate AS sdate, 774_study.stime AS stime, 774_study.modality AS modality, 774_study.refphys AS refphys, 774_study.numimages AS numimages, 774_study.numsnapshots AS numsnapshots, 774_study.numattachments AS numattachments, 774_study.sdesc AS sdesc, 774_study.backedup AS backedup, 774_study.modified AS modified, 774_study.siuid AS siuid, 774_study.institution AS institution, 774_study.bodypart AS bodypart, 774_study.tsuid AS tsuid, 774_study.acnum AS acnum from 774_study left join 774_patient on 774_study.patientID = 774_patient.patientID where exists (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') and 774_patient.pname in (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') order by received desc limit 0,50;

+------+--------------+-------------+--------+-------------------------+-------------------------+---------+------------------------------+-------+---------------------------------+

| id   | select_type  | table       | type   | possible_keys           | key                     | key_len | ref                          | rows  | Extra                           |

+------+--------------+-------------+--------+-------------------------+-------------------------+---------+------------------------------+-------+---------------------------------+

|    1 | PRIMARY      | 774_patient | ALL    | PRIMARY                 | NULL                    | NULL    | NULL                         | 28902 | Using temporary; Using filesort |

|    1 | PRIMARY      | <subquery3> | eq_ref | distinct_key            | distinct_key            | 304     | func                         | 1     |                                 |

|    1 | PRIMARY      | 774_study   | ref    | idx_774_study_patientID | idx_774_study_patientID | 4       | joints.774_patient.patientID | 1     |                                 |

|    3 | MATERIALIZED | 774_patient | ALL    | NULL                    | NULL                    | NULL    | NULL                         | 28902 | Using where                     |

|    2 | SUBQUERY     | 774_patient | ALL    | NULL                    | NULL                    | NULL    | NULL                         | 28902 | Using where                     |

+------+--------------+-------------+--------+-------------------------+-------------------------+---------+------------------------------+-------+---------------------------------+

5 rows in set (0.001 sec)

MariaDB [joints]>

MariaDB [joints]> select 774_study.patientID AS patientID, 774_patient.patientStatus AS patientStatus, 774_patient.pid AS pid, 774_patient.pname AS pname, 774_patient.dob AS dob, 774_patient.sex AS sex, 774_study.received AS received, 774_study.sdate AS sdate, 774_study.stime AS stime, 774_study.modality AS modality, 774_study.refphys AS refphys, 774_study.numimages AS numimages, 774_study.numsnapshots AS numsnapshots, 774_study.numattachments AS numattachments, 774_study.sdesc AS sdesc, 774_study.backedup AS backedup, 774_study.modified AS modified, 774_study.siuid AS siuid, 774_study.institution AS institution, 774_study.bodypart AS bodypart, 774_study.tsuid AS tsuid, 774_study.acnum AS acnum from 774_study left join 774_patient on 774_study.patientID = 774_patient.patientID where exists (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') and 774_patient.pname in (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') order by received desc limit 0,50;

Empty set (0.010 sec)

MariaDB [joints]> SHOW GLOBAL VARIABLES LIKE 'core_file';

+---------------+-------+

| Variable_name | Value |

+---------------+-------+

| core_file     | ON    |

+---------------+-------+

$ ulimit -c

0

$ sudo cat /proc/$(pidof mysqld)/limits | grep "core file"

cat: /proc//limits: No such file or directory

$ sysctl kernel.core_pattern="%e-%t.core"

sysctl: setting key "kernel.core_pattern": Read-only file system

$

left join 774_patient on 774_study.patientID = 774_patient.patientID where exists (select pname from 774_patient where pname like 'doe%^john%^%^%^%') and 774_patient.pname in (select pname from 774_patient where pname like 'doe%^john%^%^%^%') order by ...

join 774_patient on 774_study.patientID = 774_patient.patientID AND 74_patient.pname like 'doe%^john%^%^%^%'   order by ....

CREATE TABLE `774_patient` (

  `patientID` int(10) unsigned NOT NULL AUTO_INCREMENT,

  `pname` varchar(100) NOT NULL,

  PRIMARY KEY (`patientID`)

) ENGINE=InnoDB AUTO_INCREMENT=317145 DEFAULT CHARSET=utf8 ;

CREATE TABLE `774_study` (

  `received` datetime(6) NOT NULL,

  `patientID` int(10) unsigned NOT NULL,

  PRIMARY KEY (`received`),

  KEY `idx_774_study_patientID` (`patientID`),

  CONSTRAINT `fk_774_study_patientID` FOREIGN KEY (`patientID`) REFERENCES `774_patient` (`patientID`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;;

insert into 774_patient select seq,uuid() from seq_1_to_28902;

insert into 774_study select date_add(MAKEDATE(2002 + patientID / 3650 , (patientID/10) mod 365 + 1), interval (patientID mod 10) hour), patientID from 774_patient;

insert into 774_study select date_add(MAKEDATE(2015 + patientID / 3650 , (patientID/10) mod 365 + 1), interval (patientID mod 10) hour), patientID from 774_patient;

select * from 774_study left join 774_patient on 774_study.patientID = 774_patient.patientID where exists (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') and 774_patient.pname in (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') order by received desc limit 0,50;

 yum install MariaDB-server-debuginfo

p *from

up               # (up frame to https://github.com/MariaDB/server/blob/mariadb-10.5.5/sql/sql_select.cc#L18824)

info locals

p i

p m_from_field[i - 1]

gdb) p *from

$2 = {<Value_source> = {<No data fields>}, 

  _vptr.Field = 0xc1, ptr = 0x0, 

  invisible = VISIBLE, null_ptr = 0x0, 

  table = 0x0, orig_table = 0x0, 

  table_name = 0x0, field_name = {str = 0x0, 

    length = 0}, comment = {str = 0x0, 

    length = 0}, option_list = 0x0, 

  option_struct = 0x0, key_start = {

    static BITS_PER_ELEMENT = 64, 

    static ARRAY_ELEMENTS = 1, 

    static ALL_BITS_SET = 18446744073709551615, 

    buffer = {0}}, part_of_key = {

    static BITS_PER_ELEMENT = 64, 

    static ARRAY_ELEMENTS = 1, 

    static ALL_BITS_SET = 18446744073709551615, 

    buffer = {0}}, part_of_key_not_clustered = {

    static BITS_PER_ELEMENT = 64, 

    static ARRAY_ELEMENTS = 1, 

    static ALL_BITS_SET = 18446744073709551615, 

    buffer = {0}}, part_of_sortkey = {

    static BITS_PER_ELEMENT = 64, 

    static ARRAY_ELEMENTS = 1, 

    static ALL_BITS_SET = 18446744073709551615, 

    buffer = {0}}, unireg_check = Field::NONE, 

--Type <RET> for more, q to quit, c to continue without paging--

  field_length = 0, flags = 0, field_index = 0, 

  null_bit = 0 '\000', 

  is_created_from_null_item = false, 

  cond_selectivity = 0, next_equal_field = 0x0, 

  read_stats = 0x0, collected_stats = 0x0, 

  vcol_info = 0x0, check_constraint = 0x0, 

  default_value = 0x0}

gdb) up

#5  0x00005653610529b7 in Create_tmp_table::finalize(THD*, TABLE*, TMP_TABLE_PARAM*, bool, bool) ()

    at /usr/src/debug/MariaDB-10.5.5/src_0/sql/sql_select.cc:18824

18824         copy->set(field, m_from_field[i], m_save_sum_fields);

(gdb) info locals

null_ptr = 0x0

TIME_INVALID_DATES = {

  m_mode = date_co nv_mode_t::INVALID_DATES}

TIME_FUZZY_DATES = {

  m_mode = date_conv_mode_t::FUZZY_DATES}

std::__ioinit = {

  static _S_refcount = <optimized out>, 

  static _S_synced_with_stdio = <optimized out>}

TIME_TIME_ONLY = {

  m_mode = date_conv_mode_t::TIME_ONLY}

TIME_NO_ZERO_IN_DATE = <optimized out>

TIME_FRAC_NONE = <optimized out>

TIME_FRAC_TRUNCATE = <optimized out>

TIME_FRAC_ROUND = <optimized out>

sp_data_access_name = <optimized out>

TIME_NO_ZEROS = <optimized out>

TIME_INTERVAL_hhmmssff = <optimized out>

TIME_INTERVAL_DAY = <optimized out>

TIME_MODE_FOR_XXX_TO_DATE = <optimized out>

TIME_NO_ZERO_DATE = <optimized out>

TIME_CONV_NONE = <optimized out>

distinct_key = {

  str = 0x5653618367cf "distinct_key", 

  length = 12}

--Type <RET> for more, q to quit, c to continue without paging--

join_type_str = 0x5653621411e0 <join_type_str>

group_key = {str = 0x5653618367dc "group_key", 

  length = 9}

gdb) p i

No symbol "i" in current context.

(gdb) p m_from_field[i-1]

No symbol "m_from_field" in current context.

(gdb)

p *to

up

p *field

p *copy

p *(copy - 1)

gdb) up

#4  0x00005653611f9713 in Copy_field::set (

    this=0x7f17f40453d8, to=0x7f17f40461f0, 

    from=0x7f17f403fdc0, save=<optimized out>)

    at /usr/src/debug/MariaDB-10.5.5/src_0/sql/field_conv.cc:669

669       from_length=from->pack_length_in_rec();

(gdb) p *to

$1 = {<Value_source> = {<No data fields>}, 

  _vptr.Field = 0x5653620457e8 <vtable for Field_short+16>, ptr = 0x7f17f4040110 "", 

  invisible = VISIBLE, null_ptr = 0x0, 

  table = 0x7f17f403e300, 

  orig_table = 0x7f17f80a5678, 

  table_name = 0x7f17f403e410, field_name = {

    str = 0x7f17f4051b08 "numsnapshots", 

    length = 12}, comment = {

    str = 0x56536197b81d "", length = 0}, 

  option_list = 0x0, option_struct = 0x0, 

  key_start = {static BITS_PER_ELEMENT = 64, 

    static ARRAY_ELEMENTS = 1, 

    static ALL_BITS_SET = 18446744073709551615, 

    buffer = {0}}, part_of_key = {

    static BITS_PER_ELEMENT = 64, 

    static ARRAY_ELEMENTS = 1, 

    static ALL_BITS_SET = 18446744073709551615, 

    buffer = {0}}, part_of_key_not_clustered = {

    static BITS_PER_ELEMENT = 64, 

    static ARRAY_ELEMENTS = 1, 

    static ALL_BITS_SET = 18446744073709551615, 

    buffer = {0}}, part_of_sortkey = {

    static BITS_PER_ELEMENT = 64, 

--Type <RET> for more, q to quit, c to continue without paging--

    static ARRAY_ELEMENTS = 1, 

    static ALL_BITS_SET = 18446744073709551615, 

    buffer = {0}}, unireg_check = Field::NONE, 

  field_length = 5, flags = 4129, 

  field_index = 12, null_bit = 0 '\000', 

  is_created_from_null_item = false, 

  cond_selectivity = 1, next_equal_field = 0x0, 

  read_stats = 0x7f17f80bcdd0, 

  collected_stats = 0x0, vcol_info = 0x0, 

  check_constraint = 0x0, default_value = 0x0}

(gdb) up

#5  0x00005653610529b7 in Create_tmp_table::finalize(THD*, TABLE*, TMP_TABLE_PARAM*, bool, bool) ()

    at /usr/src/debug/MariaDB-10.5.5/src_0/sql/sql_select.cc:18824

18824         copy->set(field, m_from_field[i], m_save_sum_fields);

(gdb) p *field

No symbol "field" in current context.

(gdb) p *copy

No symbol "copy" in current context.

(gdb) p *(copy - 1)

No symbol "copy" in current context.

(gdb) info locals

null_ptr = 0x0

TIME_INVALID_DATES = {

  m_mode = date_conv_mode_t::INVALID_DATES}

TIME_FUZZY_DATES = {

  m_mode = date_conv_mode_t::FUZZY_DATES}

std::__ioinit = {static _S_refcount = 336, 

  static _S_synced_with_stdio = true}

TIME_TIME_ONLY = {

  m_mode = date_conv_mode_t::TIME_ONLY}

TIME_NO_ZERO_IN_DATE = <optimized out>

TIME_FRAC_NONE = <optimized out>

TIME_FRAC_TRUNCATE = <optimized out>

TIME_FRAC_ROUND = <optimized out>

sp_data_access_name = <optimized out>

TIME_NO_ZEROS = <optimized out>

TIME_INTERVAL_hhmmssff = <optimized out>

TIME_INTERVAL_DAY = <optimized out>

TIME_MODE_FOR_XXX_TO_DATE = <optimized out>

TIME_NO_ZERO_DATE = <optimized out>

TIME_CONV_NONE = <optimized out>

distinct_key = {

  str = 0x5653618367cf "distinct_key", 

  length = 12}

join_type_str = 0x5653621411e0 <join_type_str>

--Type <RET> for more, q to quit, c to continue without paging--

group_key = {str = 0x5653618367dc "group_key", 

  length = 9}

(gdb) 

18824         copy->set(field, m_from_field[i], m_save_sum_fields);

gdb) up

#4  0x00005653611f9713 in Copy_field::set (

    this=0x7f17f40453d8, to=0x7f17f40461f0, 

    from=0x7f17f403fdc0, save=<optimized out>)

    at /usr/src/debug/MariaDB-10.5.5/src_0/sql/field_conv.cc:669

669       from_length=from->pack_length_in_rec();

    this=0x7f17f40453d8, to=0x7f17f40461f0, 

    from=0x7f17f403fdc0, save=<optimized out>)

(gdb) up

#5  0x00005653610529b7 in Create_tmp_table::finalize(THD*, TABLE*, TMP_TABLE_PARAM*, bool, bool) ()

    at /usr/src/debug/MariaDB-10.5.5/src_0/sql/sql_select.cc:18824

18824         copy->set(field, m_from_field[i], m_save_sum_fields);

$ podman exec -i m1055 mysql test < /tmp/MDEV-24827.sql 

~/repos/build-mariadb-server-10.5 

$ podman exec -ti m1055 mysql  test

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Welcome to the MariaDB monitor.  Commands end with ; or \g.

Your MariaDB connection id is 16

Server version: 10.5.5-MariaDB-1:10.5.5+maria~focal mariadb.org binary distribution

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [test]> select pname from 774_patient limit 4 offset 32;

+--------------------------------------+

| pname                                |

+--------------------------------------+

| 114593ed-6cda-11eb-8a98-ba41f8bcbdf2 |

| 1145940e-6cda-11eb-8a98-ba41f8bcbdf2 |

| 1145942e-6cda-11eb-8a98-ba41f8bcbdf2 |

| 1145944f-6cda-11eb-8a98-ba41f8bcbdf2 |

+--------------------------------------+

4 rows in set (0.001 sec)

MariaDB [test]> set @n = '11458%';

Query OK, 0 rows affected (0.000 sec)

MariaDB [test]> explain  select 774_study.patientID AS patientID, 774_patient.patientStatus AS patientStatus, 774_patient.pid AS pid, 774_patient.pname AS pname, 774_patient.dob AS dob, 774_patient.sex AS sex, 774_study.received AS received, 774_study.sdate AS sdate, 774_study.stime AS stime, 774_study.modality AS modality, 774_study.refphys AS refphys, 774_study.numimages AS numimages, 774_study.numsnapshots AS numsnapshots, 774_study.numattachments AS numattachments, 774_study.sdesc AS sdesc, 774_study.backedup AS backedup, 774_study.modified AS modified, 774_study.siuid AS siuid, 774_study.institution AS institution, 774_study.bodypart AS bodypart, 774_study.tsuid AS tsuid, 774_study.acnum AS acnum  from 774_study left join 774_patient on 774_study.patientID = 774_patient.patientID where exists (select pname from 774_patient where pname like @n) and 774_patient.pname in (select pname from 774_patient where pname like @n) order by received desc limit 0,50;

+------+----------------------+-------------+--------+-------------------------+-------------------------+---------+----------------------------+-------+---------------------------------+

| id   | select_type          | table       | type   | possible_keys           | key                     | key_len | ref                        | rows  | Extra                           |

+------+----------------------+-------------+--------+-------------------------+-------------------------+---------+----------------------------+-------+---------------------------------+

|    1 | PRIMARY              | 774_patient | ALL    | PRIMARY                 | NULL                    | NULL    | NULL                       | 28906 | Using temporary; Using filesort |

|    1 | PRIMARY              | <subquery3> | eq_ref | distinct_key            | distinct_key            | 304     | func                       | 1     |                                 |

|    1 | PRIMARY              | 774_study   | ref    | idx_774_study_patientID | idx_774_study_patientID | 4       | test.774_patient.patientID | 1     |                                 |

|    3 | MATERIALIZED         | 774_patient | ALL    | NULL                    | NULL                    | NULL    | NULL                       | 28906 | Using where                     |

|    2 | UNCACHEABLE SUBQUERY | 774_patient | ALL    | NULL                    | NULL                    | NULL    | NULL                       | 28906 | Using where                     |

+------+----------------------+-------------+--------+-------------------------+-------------------------+---------+----------------------------+-------+---------------------------------+

5 rows in set (0.001 sec)

MariaDB [test]> set @n = '11458%john%^w%^%^%^%';

Query OK, 0 rows affected (0.000 sec)

MariaDB [test]> explain  select 774_study.patientID AS patientID, 774_patient.patientStatus AS patientStatus, 774_patient.pid AS pid, 774_patient.pname AS pname, 774_patient.dob AS dob, 774_patient.sex AS sex, 774_study.received AS received, 774_study.sdate AS sdate, 774_study.stime AS stime, 774_study.modality AS modality, 774_study.refphys AS refphys, 774_study.numimages AS numimages, 774_study.numsnapshots AS numsnapshots, 774_study.numattachments AS numattachments, 774_study.sdesc AS sdesc, 774_study.backedup AS backedup, 774_study.modified AS modified, 774_study.siuid AS siuid, 774_study.institution AS institution, 774_study.bodypart AS bodypart, 774_study.tsuid AS tsuid, 774_study.acnum AS acnum  from 774_study left join 774_patient on 774_study.patientID = 774_patient.patientID where exists (select pname from 774_patient where pname like @n) and 774_patient.pname in (select pname from 774_patient where pname like @n) order by received desc limit 0,50;

+------+----------------------+-------------+--------+-------------------------+-------------------------+---------+----------------------------+-------+---------------------------------+

| id   | select_type          | table       | type   | possible_keys           | key                     | key_len | ref                        | rows  | Extra                           |

+------+----------------------+-------------+--------+-------------------------+-------------------------+---------+----------------------------+-------+---------------------------------+

|    1 | PRIMARY              | 774_patient | ALL    | PRIMARY                 | NULL                    | NULL    | NULL                       | 28906 | Using temporary; Using filesort |

|    1 | PRIMARY              | <subquery3> | eq_ref | distinct_key            | distinct_key            | 304     | func                       | 1     |                                 |

|    1 | PRIMARY              | 774_study   | ref    | idx_774_study_patientID | idx_774_study_patientID | 4       | test.774_patient.patientID | 1     |                                 |

|    3 | MATERIALIZED         | 774_patient | ALL    | NULL                    | NULL                    | NULL    | NULL                       | 28906 | Using where                     |

|    2 | UNCACHEABLE SUBQUERY | 774_patient | ALL    | NULL                    | NULL                    | NULL    | NULL                       | 28906 | Using where                     |

+------+----------------------+-------------+--------+-------------------------+-------------------------+---------+----------------------------+-------+---------------------------------+

5 rows in set (0.002 sec)

(exec query)

#include <mysql.h>

#include <stddef.h>

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

int main(int argc, char **argv)

{  

  MYSQL *con = mysql_init(NULL);

  MYSQL_STMT *stmt = mysql_stmt_init(con);

  if (mysql_real_connect(con, "127.0.0.1", "root", "", "test", 0, NULL, 0) == NULL)

  {

    fprintf(stderr,"Can't connect: %s\n",mysql_error(con));

    exit(1);

  }

  mysql_query(con,

    "CREATE OR REPLACE TABLE `774_patient` ("

    "`patientID` int(10) unsigned NOT NULL AUTO_INCREMENT, "

    "`pid` varchar(64) NOT NULL, "

    "`pname` varchar(100) NOT NULL, "

    "PRIMARY KEY (`patientID`) "

  ") ENGINE=InnoDB AUTO_INCREMENT=317145 DEFAULT CHARSET=utf8");

  mysql_query(con,

    "CREATE OR REPLACE TABLE `774_study` ("

    "`received` datetime(6) NOT NULL, "

    "`patientID` int(10) unsigned NOT NULL, "

    "PRIMARY KEY (`received`), "

    "KEY `idx_774_study_patientID` (`patientID`) "

  ") ENGINE=InnoDB DEFAULT CHARSET=utf8");

  mysql_query(con,

    "insert into 774_patient(patientID,pname,pid) select seq, uuid(), uuid() from seq_1_to_10000");

  mysql_query(con,

    "insert into 774_study(received,patientID) select date_add('2020-01-01', INTERVAL seq SECOND), seq from seq_1_to_20000");

  const char* query=

    "select 774_study.patientID AS patientID "

    "from 774_study left join 774_patient "

    "on 774_study.patientID = 774_patient.patientID "

    "where exists (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') "

    "and 774_patient.pname in (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') "

    "order by received desc limit 50";

  if (mysql_stmt_prepare(stmt,query,strlen(query)))

  {

    fprintf(stderr,"Couldn't prepare: %s\n", mysql_error(con));

    mysql_close(con);

    exit(1);

  }

  unsigned long cursor = CURSOR_TYPE_READ_ONLY;

  mysql_stmt_attr_set(stmt, STMT_ATTR_CURSOR_TYPE, &cursor);

  if (mysql_stmt_execute(stmt))

    fprintf(stderr,"Got error: %s\n", mysql_stmt_error(stmt));

  else

    fprintf(stderr,"Didn't get an error\n");

  mysql_stmt_close(stmt);

  mysql_close(con);

  exit(0);

}

(my_print_stacktrace)[0x55847c5e3ece]

(handle_fatal_signal)[0x55847c06eec5]

sigaction.c:0(__restore_rt)[0x7f3caafa1b20]

(Create_tmp_table::finalize(THD*, TABLE*, TMP_TABLE_PARAM*, bool, bool))[0x55847bec1958]

(create_tmp_table(THD*, TMP_TABLE_PARAM*, List<Item>&, st_order*, bool, bool, unsigned long long, unsigned long long, st_mysql_const_lex_string const*, bool, bool))[0x55847bec260d]

(select_unit::create_result_table(THD*, List<Item>*, bool, unsigned long long, st_mysql_const_lex_string const*, bool, bool, bool, unsigned int))[0x55847bf2378b]

(Select_materialize::send_result_set_metadata(List<Item>&, unsigned int))[0x55847be3a3c3]

(JOIN::exec_inner())[0x55847bedceca]

(JOIN::exec())[0x55847beddc17]

(mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x5584

7bedbf02]

(handle_select(THD*, LEX*, select_result*, unsigned long))[0x55847bedc7eb]

(LEX::mark_first_table_as_inserting())[0x55847be7aeed]

(mysql_execute_command(THD*))[0x55847be82fbe]

(mysql_open_cursor(THD*, select_result*, Server_side_cursor**))[0x55847be3a6bc]

(Prepared_statement::execute(String*, bool))[0x55847be97a1e]

(Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*))[0x55847be97de2]

(Prepared_statement::execute_bulk_loop(String*, bool, unsigned char*, unsigned char*))[0x55847be98b35]

(mysqld_stmt_execute(THD*, char*, unsigned int))[0x55847be98bd5]

(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x55847be7f512]

(do_command(THD*))[0x55847be8124f]

(do_handle_one_connection(CONNECT*, bool))[0x55847bf70bf1]

(handle_one_connection)[0x55847bf70f7d]

(MyCTX_nopad::finish(unsigned char*, unsigned int*))[0x55847c28dd5a]

pthread_create.c:0(start_thread)[0x7f3caaf9714a]

:0(__GI___clone)[0x7f3ca8e04f23]

==2554105==ERROR: AddressSanitizer: heap-use-after-free on address 0x6190000b5620 at pc 0x558c6dd18407 bp 0x7fb7dc566640 sp 0x7fb7dc566630

READ of size 8 at 0x6190000b5620 thread T13

    #0 0x558c6dd18406 in Field::maybe_null() const /data/src/10.5/sql/field.h:1386

    #1 0x558c6dcb9853 in Item_field::create_tmp_field_from_item_field(st_mem_root*, TABLE*, Item_ref*, Tmp_field_param const*) /data/src/10.5/sql/sql_select.cc:18023

    #2 0x558c6dcb9bd5 in Item_field::create_tmp_field_ex(st_mem_root*, TABLE*, Tmp_field_src*, Tmp_field_param const*) /data/src/10.5/sql/sql_select.cc:18041

    #3 0x558c6dcbade1 in create_tmp_field(TABLE*, Item*, Item***, Field**, Field**, bool, bool, bool, bool) /data/src/10.5/sql/sql_select.cc:18196

    #4 0x558c6dcbf498 in Create_tmp_table::add_fields(THD*, TABLE*, TMP_TABLE_PARAM*, List<Item>&) /data/src/10.5/sql/sql_select.cc:18684

    #5 0x558c6dcc7d5f in create_tmp_table(THD*, TMP_TABLE_PARAM*, List<Item>&, st_order*, bool, bool, unsigned long long, unsigned long long, st_mysql_const_lex_string const*, bool, bool) /data/src/10.5/sql/sql_select.cc:19321

    #6 0x558c6de69959 in select_unit::create_result_table(THD*, List<Item>*, bool, unsigned long long, st_mysql_const_lex_string const*, bool, bool, bool, unsigned int) /data/src/10.5/sql/sql_union.cc:329

    #7 0x558c6da91334 in Select_materialize::send_result_set_metadata(List<Item>&, unsigned int) /data/src/10.5/sql/sql_cursor.cc:444

    #8 0x558c6dca4e63 in return_zero_rows /data/src/10.5/sql/sql_select.cc:14496

    #9 0x558c6dc5b2fb in JOIN::exec_inner() /data/src/10.5/sql/sql_select.cc:4392

    #10 0x558c6dc59509 in JOIN::exec() /data/src/10.5/sql/sql_select.cc:4249

    #11 0x558c6dc5d958 in mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /data/src/10.5/sql/sql_select.cc:4725

    #12 0x558c6dc2f11b in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.5/sql/sql_select.cc:419

    #13 0x558c6db98687 in execute_sqlcom_select /data/src/10.5/sql/sql_parse.cc:6307

    #14 0x558c6db87979 in mysql_execute_command(THD*) /data/src/10.5/sql/sql_parse.cc:4003

    #15 0x558c6da8eccb in mysql_open_cursor(THD*, select_result*, Server_side_cursor**) /data/src/10.5/sql/sql_cursor.cc:150

    #16 0x558c6dbf7a8e in Prepared_statement::execute(String*, bool) /data/src/10.5/sql/sql_prepare.cc:5008

    #17 0x558c6dbf30c6 in Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*) /data/src/10.5/sql/sql_prepare.cc:4488

    #18 0x558c6dbec37d in mysql_stmt_execute_common /data/src/10.5/sql/sql_prepare.cc:3460

    #19 0x558c6dbeb555 in mysqld_stmt_execute(THD*, char*, unsigned int) /data/src/10.5/sql/sql_prepare.cc:3239

    #20 0x558c6db7949e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.5/sql/sql_parse.cc:1813

    #21 0x558c6db7653d in do_command(THD*) /data/src/10.5/sql/sql_parse.cc:1370

    #22 0x558c6dfb9cf8 in do_handle_one_connection(CONNECT*, bool) /data/src/10.5/sql/sql_connect.cc:1410

    #23 0x558c6dfb965c in handle_one_connection /data/src/10.5/sql/sql_connect.cc:1312

    #24 0x558c6eccfa52 in pfs_spawn_thread /data/src/10.5/storage/perfschema/pfs.cc:2201

    #25 0x7fb80081a608 in start_thread /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477

    #26 0x7fb8003ee292 in __clone (/lib/x86_64-linux-gnu/libc.so.6+0x122292)

0x6190000b5620 is located 416 bytes inside of 1124-byte region [0x6190000b5480,0x6190000b58e4)

freed by thread T13 here:

    #0 0x7fb800d6a7cf in __interceptor_free (/lib/x86_64-linux-gnu/libasan.so.5+0x10d7cf)

    #1 0x558c6f97a343 in free_memory /data/src/10.5/mysys/safemalloc.c:280

    #2 0x558c6f9798ff in sf_free /data/src/10.5/mysys/safemalloc.c:198

    #3 0x558c6f9471ee in my_free /data/src/10.5/mysys/my_malloc.c:211

    #4 0x558c6f92321d in free_root /data/src/10.5/mysys/my_alloc.c:416

    #5 0x558c6dcce45e in free_tmp_table(THD*, TABLE*) /data/src/10.5/sql/sql_select.cc:20083

    #6 0x558c6dca0df9 in JOIN::cleanup(bool) /data/src/10.5/sql/sql_select.cc:13945

    #7 0x558c6dca008a in JOIN::join_free() /data/src/10.5/sql/sql_select.cc:13832

    #8 0x558c6dca4b28 in return_zero_rows /data/src/10.5/sql/sql_select.cc:14457

    #9 0x558c6dc5b2fb in JOIN::exec_inner() /data/src/10.5/sql/sql_select.cc:4392

    #10 0x558c6dc59509 in JOIN::exec() /data/src/10.5/sql/sql_select.cc:4249

    #11 0x558c6dc5d958 in mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /data/src/10.5/sql/sql_select.cc:4725

    #12 0x558c6dc2f11b in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.5/sql/sql_select.cc:419

    #13 0x558c6db98687 in execute_sqlcom_select /data/src/10.5/sql/sql_parse.cc:6307

    #14 0x558c6db87979 in mysql_execute_command(THD*) /data/src/10.5/sql/sql_parse.cc:4003

    #15 0x558c6da8eccb in mysql_open_cursor(THD*, select_result*, Server_side_cursor**) /data/src/10.5/sql/sql_cursor.cc:150

    #16 0x558c6dbf7a8e in Prepared_statement::execute(String*, bool) /data/src/10.5/sql/sql_prepare.cc:5008

    #17 0x558c6dbf30c6 in Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*) /data/src/10.5/sql/sql_prepare.cc:4488

    #18 0x558c6dbec37d in mysql_stmt_execute_common /data/src/10.5/sql/sql_prepare.cc:3460

    #19 0x558c6dbeb555 in mysqld_stmt_execute(THD*, char*, unsigned int) /data/src/10.5/sql/sql_prepare.cc:3239

    #20 0x558c6db7949e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.5/sql/sql_parse.cc:1813

    #21 0x558c6db7653d in do_command(THD*) /data/src/10.5/sql/sql_parse.cc:1370

    #22 0x558c6dfb9cf8 in do_handle_one_connection(CONNECT*, bool) /data/src/10.5/sql/sql_connect.cc:1410

    #23 0x558c6dfb965c in handle_one_connection /data/src/10.5/sql/sql_connect.cc:1312

    #24 0x558c6eccfa52 in pfs_spawn_thread /data/src/10.5/storage/perfschema/pfs.cc:2201

    #25 0x7fb80081a608 in start_thread /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477

previously allocated by thread T13 here:

    #0 0x7fb800d6abc8 in malloc (/lib/x86_64-linux-gnu/libasan.so.5+0x10dbc8)

    #1 0x558c6f9792b3 in sf_malloc /data/src/10.5/mysys/safemalloc.c:121

    #2 0x558c6f9463c8 in my_malloc /data/src/10.5/mysys/my_malloc.c:90

    #3 0x558c6f92217c in alloc_root /data/src/10.5/mysys/my_alloc.c:244

    #4 0x558c6f92387e in memdup_root /data/src/10.5/mysys/my_alloc.c:479

    #5 0x558c6e2fa41f in Field::make_new_field(st_mem_root*, TABLE*, bool) /data/src/10.5/sql/field.cc:2477

    #6 0x558c6e2fa8d6 in Field::create_tmp_field(st_mem_root*, TABLE*, bool) /data/src/10.5/sql/field.cc:2535

    #7 0x558c6dcb98b6 in Item_field::create_tmp_field_from_item_field(st_mem_root*, TABLE*, Item_ref*, Tmp_field_param const*) /data/src/10.5/sql/sql_select.cc:18024

    #8 0x558c6dcb9bd5 in Item_field::create_tmp_field_ex(st_mem_root*, TABLE*, Tmp_field_src*, Tmp_field_param const*) /data/src/10.5/sql/sql_select.cc:18041

    #9 0x558c6dcbade1 in create_tmp_field(TABLE*, Item*, Item***, Field**, Field**, bool, bool, bool, bool) /data/src/10.5/sql/sql_select.cc:18196

    #10 0x558c6dcbf498 in Create_tmp_table::add_fields(THD*, TABLE*, TMP_TABLE_PARAM*, List<Item>&) /data/src/10.5/sql/sql_select.cc:18684

    #11 0x558c6dcc7d5f in create_tmp_table(THD*, TMP_TABLE_PARAM*, List<Item>&, st_order*, bool, bool, unsigned long long, unsigned long long, st_mysql_const_lex_string const*, bool, bool) /data/src/10.5/sql/sql_select.cc:19321

    #12 0x558c6dc53e35 in JOIN::create_postjoin_aggr_table(st_join_table*, List<Item>*, st_order*, bool, bool, bool) /data/src/10.5/sql/sql_select.cc:3755

    #13 0x558c6dc4f91c in JOIN::make_aggr_tables_info() /data/src/10.5/sql/sql_select.cc:3355

    #14 0x558c6dc4b4e0 in JOIN::optimize_stage2() /data/src/10.5/sql/sql_select.cc:2999

    #15 0x558c6dc43d25 in JOIN::optimize_inner() /data/src/10.5/sql/sql_select.cc:2284

    #16 0x558c6dc3cef1 in JOIN::optimize() /data/src/10.5/sql/sql_select.cc:1630

    #17 0x558c6dc5d763 in mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /data/src/10.5/sql/sql_select.cc:4711

    #18 0x558c6dc2f11b in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.5/sql/sql_select.cc:419

    #19 0x558c6db98687 in execute_sqlcom_select /data/src/10.5/sql/sql_parse.cc:6307

    #20 0x558c6db87979 in mysql_execute_command(THD*) /data/src/10.5/sql/sql_parse.cc:4003

    #21 0x558c6da8eccb in mysql_open_cursor(THD*, select_result*, Server_side_cursor**) /data/src/10.5/sql/sql_cursor.cc:150

    #22 0x558c6dbf7a8e in Prepared_statement::execute(String*, bool) /data/src/10.5/sql/sql_prepare.cc:5008

    #23 0x558c6dbf30c6 in Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*) /data/src/10.5/sql/sql_prepare.cc:4488

    #24 0x558c6dbec37d in mysql_stmt_execute_common /data/src/10.5/sql/sql_prepare.cc:3460

    #25 0x558c6dbeb555 in mysqld_stmt_execute(THD*, char*, unsigned int) /data/src/10.5/sql/sql_prepare.cc:3239

    #26 0x558c6db7949e in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.5/sql/sql_parse.cc:1813

    #27 0x558c6db7653d in do_command(THD*) /data/src/10.5/sql/sql_parse.cc:1370

    #28 0x558c6dfb9cf8 in do_handle_one_connection(CONNECT*, bool) /data/src/10.5/sql/sql_connect.cc:1410

    #29 0x558c6dfb965c in handle_one_connection /data/src/10.5/sql/sql_connect.cc:1312

Thread T13 created by T0 here:

    #0 0x7fb800c97805 in pthread_create (/lib/x86_64-linux-gnu/libasan.so.5+0x3a805)

    #1 0x558c6ecca9f6 in my_thread_create /data/src/10.5/storage/perfschema/my_thread.h:38

    #2 0x558c6eccfe45 in pfs_spawn_thread_v1 /data/src/10.5/storage/perfschema/pfs.cc:2252

    #3 0x558c6d86a492 in inline_mysql_thread_create /data/src/10.5/include/mysql/psi/mysql_thread.h:1323

    #4 0x558c6d8805f0 in create_thread_to_handle_connection(CONNECT*) /data/src/10.5/sql/mysqld.cc:6012

    #5 0x558c6d880c6f in create_new_thread(CONNECT*) /data/src/10.5/sql/mysqld.cc:6071

    #6 0x558c6d880fcc in handle_accepted_socket(st_mysql_socket, st_mysql_socket) /data/src/10.5/sql/mysqld.cc:6136

    #7 0x558c6d881beb in handle_connections_sockets() /data/src/10.5/sql/mysqld.cc:6263

    #8 0x558c6d87fdfd in mysqld_main(int, char**) /data/src/10.5/sql/mysqld.cc:5658

    #9 0x558c6d868f5c in main /data/src/10.5/sql/main.cc:25

    #10 0x7fb8002f30b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)

SUMMARY: AddressSanitizer: heap-use-after-free /data/src/10.5/sql/field.h:1386 in Field::maybe_null() const

Shadow bytes around the buggy address:

  0x0c328000ea70: fd fd fd fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c328000ea80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c328000ea90: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c328000eaa0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c328000eab0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

=>0x0c328000eac0: fd fd fd fd[fd]fd fd fd fd fd fd fd fd fd fd fd

  0x0c328000ead0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c328000eae0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c328000eaf0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c328000eb00: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c328000eb10: fd fd fd fd fd fd fd fd fd fd fd fd fd fa fa fa

Shadow byte legend (one shadow byte represents 8 application bytes):

  Addressable:           00

  Partially addressable: 01 02 03 04 05 06 07 

  Heap left redzone:       fa

  Freed heap region:       fd

  Stack left redzone:      f1

  Stack mid redzone:       f2

  Stack right redzone:     f3

  Stack after return:      f5

  Stack use after scope:   f8

  Global redzone:          f9

  Global init order:       f6

  Poisoned by user:        f7

  Container overflow:      fc

  Array cookie:            ac

  Intra object redzone:    bb

  ASan internal:           fe

  Left alloca redzone:     ca

  Right alloca redzone:    cb

  Shadow gap:              cc

==2554105==ABORTING

210406  2:23:52 [ERROR] mysqld got signal 6 ;

This could be because you hit a bug. It is also possible that this binary

or one of the libraries it was linked against is corrupt, improperly built,

or misconfigured. This error can also be caused by malfunctioning hardware.

To report this bug, see https://mariadb.com/kb/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help

diagnose the problem, but since we have already crashed, 

something is definitely wrong and this may fail.

Server version: 10.5.10-MariaDB-debug

key_buffer_size=134217728

read_buffer_size=131072

max_used_connections=1

max_threads=153

thread_count=1

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 467974 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x62b00009a288

Attempting backtrace. You can use the following information to find out

where mysqld died. If you see no messages after this, something went

terribly wrong...

stack_bottom = 0x7fb7dc569d50 thread_stack 0x100000

??:0(__interceptor_tcgetattr)[0x7fb800cc9d30]

/data/bld/10.5-asan-nightly/bin/mysqld(my_print_stacktrace+0xec)[0x558c6f956a10]

/data/bld/10.5-asan-nightly/bin/mysqld(handle_fatal_signal+0xa1a)[0x558c6e382f03]

sigaction.c:0(__restore_rt)[0x7fb8008263c0]

??:0(gsignal)[0x7fb80031218b]

??:0(abort)[0x7fb8002f1859]

??:0(__sanitizer_set_report_fd)[0x7fb800d886a2]

??:0(__sanitizer_get_module_and_offset_for_pc)[0x7fb800d9324c]

??:0(__sanitizer_ptr_cmp)[0x7fb800d748ec]

??:0(__asan_on_error)[0x7fb800d74363]

??:0(__asan_report_load8)[0x7fb800d751ab]

sql/field.h:1386(Field::maybe_null() const)[0x558c6dd18407]

sql/sql_select.cc:18023(Item_field::create_tmp_field_from_item_field(st_mem_root*, TABLE*, Item_ref*, Tmp_field_param const*))[0x558c6dcb9854]

sql/sql_select.cc:18041(Item_field::create_tmp_field_ex(st_mem_root*, TABLE*, Tmp_field_src*, Tmp_field_param const*))[0x558c6dcb9bd6]

sql/sql_select.cc:18196(create_tmp_field(TABLE*, Item*, Item***, Field**, Field**, bool, bool, bool, bool))[0x558c6dcbade2]

sql/sql_select.cc:18684(Create_tmp_table::add_fields(THD*, TABLE*, TMP_TABLE_PARAM*, List<Item>&))[0x558c6dcbf499]

sql/sql_select.cc:19320(create_tmp_table(THD*, TMP_TABLE_PARAM*, List<Item>&, st_order*, bool, bool, unsigned long long, unsigned long long, st_mysql_const_lex_string const*, bool, bool))[0x558c6dcc7d60]

sql/sql_union.cc:329(select_unit::create_result_table(THD*, List<Item>*, bool, unsigned long long, st_mysql_const_lex_string const*, bool, bool, bool, unsigned int))[0x558c6de6995a]

sql/sql_cursor.cc:444(Select_materialize::send_result_set_metadata(List<Item>&, unsigned int))[0x558c6da91335]

sql/sql_select.cc:14496(return_zero_rows(JOIN*, select_result*, List<TABLE_LIST>&, List<Item>&, bool, unsigned long long, char const*, Item*, List<Item>&))[0x558c6dca4e64]

sql/sql_select.cc:4392(JOIN::exec_inner())[0x558c6dc5b2fc]

sql/sql_select.cc:4250(JOIN::exec())[0x558c6dc5950a]

sql/sql_select.cc:4727(mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x558c6dc5d959]

sql/sql_select.cc:419(handle_select(THD*, LEX*, select_result*, unsigned long))[0x558c6dc2f11c]

sql/sql_parse.cc:6307(execute_sqlcom_select(THD*, TABLE_LIST*))[0x558c6db98688]

sql/sql_parse.cc:4003(mysql_execute_command(THD*))[0x558c6db8797a]

sql/sql_cursor.cc:150(mysql_open_cursor(THD*, select_result*, Server_side_cursor**))[0x558c6da8eccc]

sql/sql_prepare.cc:5008(Prepared_statement::execute(String*, bool))[0x558c6dbf7a8f]

sql/sql_prepare.cc:4488(Prepared_statement::execute_loop(String*, bool, unsigned char*, unsigned char*))[0x558c6dbf30c7]

sql/sql_prepare.cc:3460(mysql_stmt_execute_common(THD*, unsigned long, unsigned char*, unsigned char*, unsigned long, bool, bool))[0x558c6dbec37e]

sql/sql_prepare.cc:3239(mysqld_stmt_execute(THD*, char*, unsigned int))[0x558c6dbeb556]

sql/sql_parse.cc:1815(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x558c6db7949f]

sql/sql_parse.cc:1370(do_command(THD*))[0x558c6db7653e]

sql/sql_connect.cc:1410(do_handle_one_connection(CONNECT*, bool))[0x558c6dfb9cf9]

sql/sql_connect.cc:1314(handle_one_connection)[0x558c6dfb965d]

perfschema/pfs.cc:2203(pfs_spawn_thread)[0x558c6eccfa53]

nptl/pthread_create.c:478(start_thread)[0x7fb80081a609]

??:0(clone)[0x7fb8003ee293]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x62b0000b0e50): select 774_study.patientID AS patientID from 774_study left join 774_patient on 774_study.patientID = 774_patient.patientID where exists (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') and 774_patient.pname in (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') order by received desc limit 50

Connection ID (thread ID): 5

Status: NOT_KILLED

Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=on,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on,split_materialized=on,condition_pushdown_for_subquery=on,rowid_filter=on,condition_pushdown_from_having=on,not_null_range_scan=off

The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains

information that should help you find out what is causing the crash.

Writing a core file...

Working directory at /mnt-hd8t/bld/10.5-asan-nightly/data

Resource Limits:

Limit                     Soft Limit           Hard Limit           Units     

Max cpu time              unlimited            unlimited            seconds   

Max file size             unlimited            unlimited            bytes     

Max data size             unlimited            unlimited            bytes     

Max stack size            8388608              unlimited            bytes     

Max core file size        unlimited            unlimited            bytes     

Max resident set          unlimited            unlimited            bytes     

Max processes             385874               385874               processes 

Max open files            32198                32198                files     

Max locked memory         67108864             67108864             bytes     

Max address space         unlimited            unlimited            bytes     

Max file locks            unlimited            unlimited            locks     

Max pending signals       385874               385874               signals   

Max msgqueue size         819200               819200               bytes     

Max nice priority         0                    0                    

Max realtime priority     0                    0                    

Max realtime timeout      unlimited            unlimited            us        

Core pattern: |/usr/share/apport/apport %p %s %c %d %P %E

--source include/have_innodb.inc

--source include/have_sequence.inc

CREATE OR REPLACE TABLE `774_patient` (

  `patientID` int(10) unsigned NOT NULL AUTO_INCREMENT,

  `pid` varchar(64) NOT NULL,

  `pname` varchar(100) NOT NULL,

  PRIMARY KEY (`patientID`)

) ENGINE=InnoDB CHARSET=utf8;

CREATE OR REPLACE TABLE `774_study` (

  `received` datetime(6) NOT NULL,

  `patientID` int(10) unsigned NOT NULL,

  PRIMARY KEY (`received`),

  KEY `idx_774_study_patientID` (`patientID`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

insert into 774_patient(patientID,pname,pid) select seq, uuid(), uuid() from seq_1_to_10000;

insert into 774_study(received,patientID) select date_add('2020-01-01', INTERVAL seq SECOND), seq from seq_1_to_20000;

--delimiter $

create or replace procedure pr()

begin

  DECLARE done INT DEFAULT FALSE;

  DECLARE a int;

  DECLARE cur1 CURSOR FOR select 774_study.patientID AS patientID from 774_study left join 774_patient on 774_study.patientID = 774_patient.patientID where exists (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') and 774_patient.pname in (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') order by received desc limit 50;

  DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;

  OPEN cur1;

  read_loop: LOOP

    FETCH cur1 INTO a;

    IF done THEN

      LEAVE read_loop;

    END IF;

  END LOOP;

  CLOSE cur1;

END $

--delimiter ;

call pr();

==2554381==ERROR: AddressSanitizer: heap-use-after-free on address 0x619003204ce0 at pc 0x55d6bb8760fa bp 0x7fb8aee01d10 sp 0x7fb8aee01d00

READ of size 8 at 0x619003204ce0 thread T27

    #0 0x55d6bb8760f9 in create_tmp_field_from_field(THD*, Field*, char const*, TABLE*, Item_field*) /data/src/10.2/sql/sql_select.cc:16274

    #1 0x55d6bb877ccb in create_tmp_field(THD*, TABLE*, Item*, Item::Type, Item***, Field**, Field**, bool, bool, bool, bool) /data/src/10.2/sql/sql_select.cc:16529

    #2 0x55d6bb87b13e in create_tmp_table(THD*, TMP_TABLE_PARAM*, List<Item>&, st_order*, bool, bool, unsigned long long, unsigned long long, char const*, bool, bool) /data/src/10.2/sql/sql_select.cc:16977

    #3 0x55d6bb9d3449 in select_union::create_result_table(THD*, List<Item>*, bool, unsigned long long, char const*, bool, bool, bool) /data/src/10.2/sql/sql_union.cc:180

    #4 0x55d6bb6d49e1 in Select_materialize::send_result_set_metadata(List<Item>&, unsigned int) /data/src/10.2/sql/sql_cursor.cc:436

    #5 0x55d6bb863bb0 in return_zero_rows /data/src/10.2/sql/sql_select.cc:12918

    #6 0x55d6bb821c79 in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3573

    #7 0x55d6bb82014d in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3437

    #8 0x55d6bb8239d0 in mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /data/src/10.2/sql/sql_select.cc:3840

    #9 0x55d6bb8003f7 in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.2/sql/sql_select.cc:361

    #10 0x55d6bb7770d8 in execute_sqlcom_select /data/src/10.2/sql/sql_parse.cc:6274

    #11 0x55d6bb764477 in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:3585

    #12 0x55d6bb6d2427 in mysql_open_cursor(THD*, select_result*, Server_side_cursor**) /data/src/10.2/sql/sql_cursor.cc:141

    #13 0x55d6bb5c8b61 in sp_cursor::open(THD*) /data/src/10.2/sql/sp_rcontext.cc:464

    #14 0x55d6bb5b655d in sp_instr_copen::exec_core(THD*, unsigned int*) /data/src/10.2/sql/sp_head.cc:3929

    #15 0x55d6bb5b0f5c in sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*) /data/src/10.2/sql/sp_head.cc:3095

    #16 0x55d6bb5b62e6 in sp_instr_copen::execute(THD*, unsigned int*) /data/src/10.2/sql/sp_head.cc:3914

    #17 0x55d6bb5a6003 in sp_head::execute(THD*, bool) /data/src/10.2/sql/sp_head.cc:1326

    #18 0x55d6bb5aa7ce in sp_head::execute_procedure(THD*, List<Item>*) /data/src/10.2/sql/sp_head.cc:2202

    #19 0x55d6bb7600f1 in do_execute_sp /data/src/10.2/sql/sql_parse.cc:2981

    #20 0x55d6bb7723b5 in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:5625

    #21 0x55d6bb780669 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.2/sql/sql_parse.cc:7794

    #22 0x55d6bb75974b in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.2/sql/sql_parse.cc:1827

    #23 0x55d6bb75650a in do_command(THD*) /data/src/10.2/sql/sql_parse.cc:1381

    #24 0x55d6bbade8c5 in do_handle_one_connection(CONNECT*) /data/src/10.2/sql/sql_connect.cc:1336

    #25 0x55d6bbade188 in handle_one_connection /data/src/10.2/sql/sql_connect.cc:1241

    #26 0x55d6bce7fd6d in pfs_spawn_thread /data/src/10.2/storage/perfschema/pfs.cc:1869

    #27 0x7fb8c59a3608 in start_thread /build/glibc-eX1tMB/glibc-2.31/nptl/pthread_create.c:477

    #28 0x7fb8c557f292 in __clone (/lib/x86_64-linux-gnu/libc.so.6+0x122292)

0x619003204ce0 is located 352 bytes inside of 1100-byte region [0x619003204b80,0x619003204fcc)

freed by thread T27 here:

    #0 0x7fb8c5f6e7cf in __interceptor_free (/lib/x86_64-linux-gnu/libasan.so.5+0x10d7cf)

    #1 0x55d6bcf9d9e6 in free_memory /data/src/10.2/mysys/safemalloc.c:279

    #2 0x55d6bcf9cf32 in sf_free /data/src/10.2/mysys/safemalloc.c:197

    #3 0x55d6bcf6929e in my_free /data/src/10.2/mysys/my_malloc.c:218

    #4 0x55d6bcf47102 in free_root /data/src/10.2/mysys/my_alloc.c:401

    #5 0x55d6bb886e96 in free_tmp_table(THD*, TABLE*) /data/src/10.2/sql/sql_select.cc:18191

    #6 0x55d6bb86005a in JOIN::cleanup(bool) /data/src/10.2/sql/sql_select.cc:12383

    #7 0x55d6bb85f3a4 in JOIN::join_free() /data/src/10.2/sql/sql_select.cc:12273

    #8 0x55d6bb863875 in return_zero_rows /data/src/10.2/sql/sql_select.cc:12879

    #9 0x55d6bb821c79 in JOIN::exec_inner() /data/src/10.2/sql/sql_select.cc:3573

    #10 0x55d6bb82014d in JOIN::exec() /data/src/10.2/sql/sql_select.cc:3437

    #11 0x55d6bb8239d0 in mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /data/src/10.2/sql/sql_select.cc:3840

    #12 0x55d6bb8003f7 in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.2/sql/sql_select.cc:361

    #13 0x55d6bb7770d8 in execute_sqlcom_select /data/src/10.2/sql/sql_parse.cc:6274

    #14 0x55d6bb764477 in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:3585

    #15 0x55d6bb6d2427 in mysql_open_cursor(THD*, select_result*, Server_side_cursor**) /data/src/10.2/sql/sql_cursor.cc:141

    #16 0x55d6bb5c8b61 in sp_cursor::open(THD*) /data/src/10.2/sql/sp_rcontext.cc:464

    #17 0x55d6bb5b655d in sp_instr_copen::exec_core(THD*, unsigned int*) /data/src/10.2/sql/sp_head.cc:3929

    #18 0x55d6bb5b0f5c in sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*) /data/src/10.2/sql/sp_head.cc:3095

    #19 0x55d6bb5b62e6 in sp_instr_copen::execute(THD*, unsigned int*) /data/src/10.2/sql/sp_head.cc:3914

    #20 0x55d6bb5a6003 in sp_head::execute(THD*, bool) /data/src/10.2/sql/sp_head.cc:1326

    #21 0x55d6bb5aa7ce in sp_head::execute_procedure(THD*, List<Item>*) /data/src/10.2/sql/sp_head.cc:2202

    #22 0x55d6bb7600f1 in do_execute_sp /data/src/10.2/sql/sql_parse.cc:2981

    #23 0x55d6bb7723b5 in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:5625

    #24 0x55d6bb780669 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.2/sql/sql_parse.cc:7794

    #25 0x55d6bb75974b in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.2/sql/sql_parse.cc:1827

    #26 0x55d6bb75650a in do_command(THD*) /data/src/10.2/sql/sql_parse.cc:1381

    #27 0x55d6bbade8c5 in do_handle_one_connection(CONNECT*) /data/src/10.2/sql/sql_connect.cc:1336

    #28 0x55d6bbade188 in handle_one_connection /data/src/10.2/sql/sql_connect.cc:1241

    #29 0x55d6bce7fd6d in pfs_spawn_thread /data/src/10.2/storage/perfschema/pfs.cc:1869

previously allocated by thread T27 here:

    #0 0x7fb8c5f6ebc8 in malloc (/lib/x86_64-linux-gnu/libasan.so.5+0x10dbc8)

    #1 0x55d6bcf9c8a4 in sf_malloc /data/src/10.2/mysys/safemalloc.c:118

    #2 0x55d6bcf6882d in my_malloc /data/src/10.2/mysys/my_malloc.c:101

    #3 0x55d6bcf45e9f in alloc_root /data/src/10.2/mysys/my_alloc.c:243

    #4 0x55d6bcf478d5 in memdup_root /data/src/10.2/mysys/my_alloc.c:464

    #5 0x55d6bbd1adbf in Field::make_new_field(st_mem_root*, TABLE*, bool) /data/src/10.2/sql/field.cc:2387

    #6 0x55d6bb87619b in create_tmp_field_from_field(THD*, Field*, char const*, TABLE*, Item_field*) /data/src/10.2/sql/sql_select.cc:16273

    #7 0x55d6bb877ccb in create_tmp_field(THD*, TABLE*, Item*, Item::Type, Item***, Field**, Field**, bool, bool, bool, bool) /data/src/10.2/sql/sql_select.cc:16529

    #8 0x55d6bb87b13e in create_tmp_table(THD*, TMP_TABLE_PARAM*, List<Item>&, st_order*, bool, bool, unsigned long long, unsigned long long, char const*, bool, bool) /data/src/10.2/sql/sql_select.cc:16977

    #9 0x55d6bb81ba46 in JOIN::create_postjoin_aggr_table(st_join_table*, List<Item>*, st_order*, bool, bool, bool) /data/src/10.2/sql/sql_select.cc:2974

    #10 0x55d6bb817935 in JOIN::make_aggr_tables_info() /data/src/10.2/sql/sql_select.cc:2579

    #11 0x55d6bb81389d in JOIN::optimize_inner() /data/src/10.2/sql/sql_select.cc:2250

    #12 0x55d6bb8080dd in JOIN::optimize() /data/src/10.2/sql/sql_select.cc:1118

    #13 0x55d6bb8237e4 in mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*) /data/src/10.2/sql/sql_select.cc:3826

    #14 0x55d6bb8003f7 in handle_select(THD*, LEX*, select_result*, unsigned long) /data/src/10.2/sql/sql_select.cc:361

    #15 0x55d6bb7770d8 in execute_sqlcom_select /data/src/10.2/sql/sql_parse.cc:6274

    #16 0x55d6bb764477 in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:3585

    #17 0x55d6bb6d2427 in mysql_open_cursor(THD*, select_result*, Server_side_cursor**) /data/src/10.2/sql/sql_cursor.cc:141

    #18 0x55d6bb5c8b61 in sp_cursor::open(THD*) /data/src/10.2/sql/sp_rcontext.cc:464

    #19 0x55d6bb5b655d in sp_instr_copen::exec_core(THD*, unsigned int*) /data/src/10.2/sql/sp_head.cc:3929

    #20 0x55d6bb5b0f5c in sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*) /data/src/10.2/sql/sp_head.cc:3095

    #21 0x55d6bb5b62e6 in sp_instr_copen::execute(THD*, unsigned int*) /data/src/10.2/sql/sp_head.cc:3914

    #22 0x55d6bb5a6003 in sp_head::execute(THD*, bool) /data/src/10.2/sql/sp_head.cc:1326

    #23 0x55d6bb5aa7ce in sp_head::execute_procedure(THD*, List<Item>*) /data/src/10.2/sql/sp_head.cc:2202

    #24 0x55d6bb7600f1 in do_execute_sp /data/src/10.2/sql/sql_parse.cc:2981

    #25 0x55d6bb7723b5 in mysql_execute_command(THD*) /data/src/10.2/sql/sql_parse.cc:5625

    #26 0x55d6bb780669 in mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool) /data/src/10.2/sql/sql_parse.cc:7794

    #27 0x55d6bb75974b in dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool) /data/src/10.2/sql/sql_parse.cc:1827

    #28 0x55d6bb75650a in do_command(THD*) /data/src/10.2/sql/sql_parse.cc:1381

    #29 0x55d6bbade8c5 in do_handle_one_connection(CONNECT*) /data/src/10.2/sql/sql_connect.cc:1336

Thread T27 created by T0 here:

    #0 0x7fb8c5e9b805 in pthread_create (/lib/x86_64-linux-gnu/libasan.so.5+0x3a805)

    #1 0x55d6bce8015e in spawn_thread_v1 /data/src/10.2/storage/perfschema/pfs.cc:1919

    #2 0x55d6bb4fb203 in inline_mysql_thread_create /data/src/10.2/include/mysql/psi/mysql_thread.h:1246

    #3 0x55d6bb5130ce in create_thread_to_handle_connection(CONNECT*) /data/src/10.2/sql/mysqld.cc:6573

    #4 0x55d6bb513869 in create_new_thread /data/src/10.2/sql/mysqld.cc:6643

    #5 0x55d6bb5149fb in handle_connections_sockets() /data/src/10.2/sql/mysqld.cc:6901

    #6 0x55d6bb51241f in mysqld_main(int, char**) /data/src/10.2/sql/mysqld.cc:6192

    #7 0x55d6bb4f9abc in main /data/src/10.2/sql/main.cc:25

    #8 0x7fb8c54840b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)

SUMMARY: AddressSanitizer: heap-use-after-free /data/src/10.2/sql/sql_select.cc:16274 in create_tmp_field_from_field(THD*, Field*, char const*, TABLE*, Item_field*)

Shadow bytes around the buggy address:

  0x0c3280638940: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fa

  0x0c3280638950: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c3280638960: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa

  0x0c3280638970: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c3280638980: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

=>0x0c3280638990: fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd fd fd

  0x0c32806389a0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c32806389b0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c32806389c0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c32806389d0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

  0x0c32806389e0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd

Shadow byte legend (one shadow byte represents 8 application bytes):

  Addressable:           00

  Partially addressable: 01 02 03 04 05 06 07 

  Heap left redzone:       fa

  Freed heap region:       fd

  Stack left redzone:      f1

  Stack mid redzone:       f2

  Stack right redzone:     f3

  Stack after return:      f5

  Stack use after scope:   f8

  Global redzone:          f9

  Global init order:       f6

  Poisoned by user:        f7

  Container overflow:      fc

  Array cookie:            ac

  Intra object redzone:    bb

  ASan internal:           fe

  Left alloca redzone:     ca

  Right alloca redzone:    cb

  Shadow gap:              cc

==2554381==ABORTING

210406  2:27:50 [ERROR] mysqld got signal 6 ;

This could be because you hit a bug. It is also possible that this binary

or one of the libraries it was linked against is corrupt, improperly built,

or misconfigured. This error can also be caused by malfunctioning hardware.

To report this bug, see https://mariadb.com/kb/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help

diagnose the problem, but since we have already crashed, 

something is definitely wrong and this may fail.

Server version: 10.2.38-MariaDB-debug-log

key_buffer_size=1048576

read_buffer_size=131072

max_used_connections=1

max_threads=153

thread_count=6

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 63104 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

Thread pointer: 0x62a0000ba270

Attempting backtrace. You can use the following information to find out

where mysqld died. If you see no messages after this, something went

terribly wrong...

stack_bottom = 0x7fb8aee06d90 thread_stack 0x5b000

/lib/x86_64-linux-gnu/libasan.so.5(+0x6cd30)[0x7fb8c5ecdd30]

/mnt-hd8t/bld/10.2-asan-nightly/bin/mysqld(my_print_stacktrace+0xe4)[0x55d6bcf7a25b]

mysys/stacktrace.c:172(my_print_stacktrace)[0x55d6bbd9c025]

sigaction.c:0(__restore_rt)[0x7fb8c59af3c0]

/lib/x86_64-linux-gnu/libc.so.6(gsignal+0xcb)[0x7fb8c54a318b]

/lib/x86_64-linux-gnu/libc.so.6(abort+0x12b)[0x7fb8c5482859]

/lib/x86_64-linux-gnu/libasan.so.5(+0x12b6a2)[0x7fb8c5f8c6a2]

/lib/x86_64-linux-gnu/libasan.so.5(+0x13624c)[0x7fb8c5f9724c]

/lib/x86_64-linux-gnu/libasan.so.5(+0x1178ec)[0x7fb8c5f788ec]

/lib/x86_64-linux-gnu/libasan.so.5(+0x117363)[0x7fb8c5f78363]

/lib/x86_64-linux-gnu/libasan.so.5(__asan_report_load8+0x3b)[0x7fb8c5f791ab]

sql/sql_select.cc:16274(create_tmp_field_from_field(THD*, Field*, char const*, TABLE*, Item_field*))[0x55d6bb8760fa]

sql/sql_select.cc:16529(create_tmp_field(THD*, TABLE*, Item*, Item::Type, Item***, Field**, Field**, bool, bool, bool, bool))[0x55d6bb877ccc]

sql/sql_select.cc:16977(create_tmp_table(THD*, TMP_TABLE_PARAM*, List<Item>&, st_order*, bool, bool, unsigned long long, unsigned long long, char const*, bool, bool))[0x55d6bb87b13f]

sql/sql_union.cc:180(select_union::create_result_table(THD*, List<Item>*, bool, unsigned long long, char const*, bool, bool, bool))[0x55d6bb9d344a]

sql/sql_cursor.cc:436(Select_materialize::send_result_set_metadata(List<Item>&, unsigned int))[0x55d6bb6d49e2]

sql/sql_select.cc:12918(return_zero_rows(JOIN*, select_result*, List<TABLE_LIST>&, List<Item>&, bool, unsigned long long, char const*, Item*, List<Item>&))[0x55d6bb863bb1]

sql/sql_select.cc:3573(JOIN::exec_inner())[0x55d6bb821c7a]

sql/sql_select.cc:3438(JOIN::exec())[0x55d6bb82014e]

sql/sql_select.cc:3842(mysql_select(THD*, TABLE_LIST*, unsigned int, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x55d6bb8239d1]

sql/sql_select.cc:361(handle_select(THD*, LEX*, select_result*, unsigned long))[0x55d6bb8003f8]

sql/sql_parse.cc:6274(execute_sqlcom_select(THD*, TABLE_LIST*))[0x55d6bb7770d9]

sql/sql_parse.cc:3585(mysql_execute_command(THD*))[0x55d6bb764478]

sql/sql_cursor.cc:141(mysql_open_cursor(THD*, select_result*, Server_side_cursor**))[0x55d6bb6d2428]

sql/sp_rcontext.cc:464(sp_cursor::open(THD*))[0x55d6bb5c8b62]

sql/sp_head.cc:3929(sp_instr_copen::exec_core(THD*, unsigned int*))[0x55d6bb5b655e]

sql/sp_head.cc:3095(sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*))[0x55d6bb5b0f5d]

sql/sp_head.cc:3914(sp_instr_copen::execute(THD*, unsigned int*))[0x55d6bb5b62e7]

sql/sp_head.cc:1326(sp_head::execute(THD*, bool))[0x55d6bb5a6004]

sql/sp_head.cc:2202(sp_head::execute_procedure(THD*, List<Item>*))[0x55d6bb5aa7cf]

sql/sql_parse.cc:2981(do_execute_sp(THD*, sp_head*))[0x55d6bb7600f2]

sql/sql_parse.cc:5625(mysql_execute_command(THD*))[0x55d6bb7723b6]

sql/sql_parse.cc:7794(mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool))[0x55d6bb78066a]

sql/sql_parse.cc:1830(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x55d6bb75974c]

sql/sql_parse.cc:1381(do_command(THD*))[0x55d6bb75650b]

sql/sql_connect.cc:1336(do_handle_one_connection(CONNECT*))[0x55d6bbade8c6]

sql/sql_connect.cc:1242(handle_one_connection)[0x55d6bbade189]

perfschema/pfs.cc:1871(pfs_spawn_thread)[0x55d6bce7fd6e]

nptl/pthread_create.c:478(start_thread)[0x7fb8c59a3609]

/lib/x86_64-linux-gnu/libc.so.6(clone+0x43)[0x7fb8c557f293]

Trying to get some variables.

Some pointers may be invalid and cause the dump to abort.

Query (0x62b000000290): call pr()

Connection ID (thread ID): 9

Status: NOT_KILLED

Optimizer switch: index_merge=on,index_merge_union=on,index_merge_sort_union=on,index_merge_intersection=on,index_merge_sort_intersection=off,engine_condition_pushdown=off,index_condition_pushdown=on,derived_merge=on,derived_with_keys=on,firstmatch=on,loosescan=on,materialization=on,in_to_exists=on,semijoin=on,partial_match_rowid_merge=on,partial_match_table_scan=on,subquery_cache=on,mrr=off,mrr_cost_based=off,mrr_sort_keys=off,outer_join_with_cache=on,semijoin_with_cache=on,join_cache_incremental=on,join_cache_hashed=on,join_cache_bka=on,optimize_join_buffer_size=off,table_elimination=on,extended_keys=on,exists_to_in=on,orderby_uses_equalities=on,condition_pushdown_for_derived=on

The manual page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/ contains

information that should help you find out what is causing the crash.

Writing a core file...

Working directory at /dev/shm/var_auto_lJQZ/mysqld.1/data

Resource Limits:

Limit                     Soft Limit           Hard Limit           Units     

Max cpu time              unlimited            unlimited            seconds   

Max file size             unlimited            unlimited            bytes     

Max data size             unlimited            unlimited            bytes     

Max stack size            8388608              unlimited            bytes     

Max core file size        unlimited            unlimited            bytes     

Max resident set          unlimited            unlimited            bytes     

Max processes             385874               385874               processes 

Max open files            1024                 1024                 files     

Max locked memory         67108864             67108864             bytes     

Max address space         unlimited            unlimited            bytes     

Max file locks            unlimited            unlimited            locks     

Max pending signals       385874               385874               signals   

Max msgqueue size         819200               819200               bytes     

Max nice priority         0                    0                    

Max realtime priority     0                    0                    

Max realtime timeout      unlimited            unlimited            us        

Core pattern: |/usr/share/apport/apport %p %s %c %d %P %E

stack_bottom = 0x7f0020325bd8 thread_stack 0x49000

??:0(my_print_stacktrace)[0x559fec17dece]

??:0(handle_fatal_signal)[0x559febc08ec5]

sigaction.c:0(__restore_rt)[0x7f002a667b20]

??:0(Create_tmp_table::finalize(THD*, TABLE*, TMP_TABLE_PARAM*, bool, bool))[0x559feba5b958]

??:0(create_tmp_table(THD*, TMP_TABLE_PARAM*, List<Item>&, st_order*, bool, bool, unsigned long long, unsigned long long, st_mysql_const_lex_string const*, bool, bool))[0x559feba5c60d]

??:0(select_unit::create_result_table(THD*, List<Item>*, bool, unsigned long long, st_mysql_const_lex_string const*, bool, bool, bool, unsigned int))[0x559febabd78b]

??:0(Select_materialize::send_result_set_metadata(List<Item>&, unsigned int))[0x559feb9d43c3]

??:0(JOIN::exec_inner())[0x559feba76eca]

??:0(JOIN::exec())[0x559feba77c17]

??:0(mysql_select(THD*, TABLE_LIST*, List<Item>&, Item*, unsigned int, st_order*, st_order*, Item*, st_order*, unsigned long long, select_result*, st_select_lex_unit*, st_select_lex*))[0x559feba75f02]

??:0(handle_select(THD*, LEX*, select_result*, unsigned long))[0x559feba767eb]

??:0(LEX::mark_first_table_as_inserting())[0x559feba14eed]

??:0(mysql_execute_command(THD*))[0x559feba1cfbe]

??:0(mysql_open_cursor(THD*, select_result*, Server_side_cursor**))[0x559feb9d46bc]

??:0(sp_cursor::open(THD*))[0x559feb98ac5e]

??:0(sp_instr_copen::exec_core(THD*, unsigned int*))[0x559feb97ce67]

??:0(sp_lex_keeper::reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*))[0x559feb984009]

??:0(sp_lex_keeper::cursor_reset_lex_and_exec_core(THD*, unsigned int*, bool, sp_instr*))[0x559feb98438f]

??:0(sp_head::execute(THD*, bool))[0x559feb97fd6f]

??:0(sp_head::execute_procedure(THD*, List<Item>*))[0x559feb98113a]

??:0(LEX::mark_first_table_as_inserting())[0x559feba14cf1]

??:0(Sql_cmd_call::execute(THD*))[0x559feba176dc]

??:0(mysql_execute_command(THD*))[0x559feba1cfed]

??:0(mysql_parse(THD*, char*, unsigned int, Parser_state*, bool, bool))[0x559feba0fc62]

??:0(dispatch_command(enum_server_command, THD*, char*, unsigned int, bool, bool))[0x559feba1a0fe]

??:0(do_command(THD*))[0x559feba1b24f]

??:0(do_handle_one_connection(CONNECT*, bool))[0x559febb0abf1]

??:0(handle_one_connection)[0x559febb0af7d]

??:0(MyCTX_nopad::finish(unsigned char*, unsigned int*))[0x559febe27d5a]

pthread_create.c:0(start_thread)[0x7f002a65d14a]

:0(__GI___clone)[0x7f00284caf23]

perl ./mtr --mem --cursor-protocol <testcase name>

--source include/have_innodb.inc

--source include/have_sequence.inc

CREATE OR REPLACE TABLE `774_patient` (

  `patientID` int(10) unsigned NOT NULL AUTO_INCREMENT,

  `pid` varchar(64) NOT NULL,

  `pname` varchar(100) NOT NULL,

  PRIMARY KEY (`patientID`)

) ENGINE=InnoDB CHARSET=utf8;

CREATE OR REPLACE TABLE `774_study` (

  `received` datetime(6) NOT NULL,

  `patientID` int(10) unsigned NOT NULL,

  PRIMARY KEY (`received`),

  KEY `idx_774_study_patientID` (`patientID`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8;

insert into 774_patient(patientID,pname,pid) select seq, uuid(), uuid() from seq_1_to_10000;

insert into 774_study(received,patientID) select date_add('2020-01-01', INTERVAL seq SECOND), seq from seq_1_to_20000;

select 774_study.patientID AS patientID from 774_study left join 774_patient on 774_study.patientID = 774_patient.patientID where exists (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') and 774_patient.pname in (select pname from 774_patient where pname like 'doe%john%^w%^%^%^%') order by received desc limit 50;