Here's a query that crashes:
analyze format=json
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with recursive src(counter) as
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(select 1
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union
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select counter+1 from src where counter<10
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) select * from src
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Program received signal SIGSEGV, Segmentation fault.
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[Switching to Thread 0x7ffff43b7300 (LWP 1045)]
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0x0000555555d43a10 in Item_field::print (this=0x7fff98012b98, str=0x7ffff43b4430, query_type=QT_EXPLAIN) at /home/psergey/dev-git/10.2/sql/item.cc:6899
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(gdb) p this
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$2 = (Item_field * const) 0x7fff98012b98
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(gdb) p field
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$4 = (Field *) 0x7fff9801eaa8
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(gdb) p field->table
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$6 = (TABLE *) 0x8f8f8f8f8f8f8f8f
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(gdb) p this->fixed
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$8 = true
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(gdb) wher
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#0 0x0000555555d43a10 in Item_field::print (this=0x7fff98012b98, str=0x7ffff43b4430, query_type=QT_EXPLAIN) at /home/psergey/dev-git/10.2/sql/item.cc:6899
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#1 0x0000555555d8951c in Item_func::print_op (this=0x7fff98012d28, str=0x7ffff43b4430, query_type=QT_EXPLAIN) at /home/psergey/dev-git/10.2/sql/item_func.cc:477
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#2 0x0000555555d6aa57 in Item_bool_rowready_func2::print (this=0x7fff98012d28, str=0x7ffff43b4430, query_type=QT_EXPLAIN) at /home/psergey/dev-git/10.2/sql/item_cmpfunc.h:481
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#3 0x0000555555c4070b in write_item (writer=0x7ffff43b4b80, item=0x7fff98012d28) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:1346
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#4 0x0000555555c409ce in Explain_table_access::tag_to_json (this=0x7fff98021488, writer=0x7ffff43b4b80, tag=ET_USING_WHERE) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:1404
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#5 0x0000555555c41569 in Explain_table_access::print_explain_json (this=0x7fff98021488, query=0x7fff980151c0, writer=0x7ffff43b4b80, is_analyze=true) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:1651
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#6 0x0000555555c3f52c in Explain_basic_join::print_explain_json_interns (this=0x7fff98016c80, query=0x7fff980151c0, writer=0x7ffff43b4b80, is_analyze=true) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:1000
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#7 0x0000555555c3f0c0 in Explain_select::print_explain_json (this=0x7fff98016c80, query=0x7fff980151c0, writer=0x7ffff43b4b80, is_analyze=true) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:905
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#8 0x0000555555c3e24a in Explain_union::print_explain_json (this=0x7fff980234b0, query=0x7fff980151c0, writer=0x7ffff43b4b80, is_analyze=true) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:585
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#9 0x0000555555c41841 in Explain_table_access::print_explain_json (this=0x7fff98022fa0, query=0x7fff980151c0, writer=0x7ffff43b4b80, is_analyze=true) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:1691
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#10 0x0000555555c3f52c in Explain_basic_join::print_explain_json_interns (this=0x7fff98022ea0, query=0x7fff980151c0, writer=0x7ffff43b4b80, is_analyze=true) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:1000
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#11 0x0000555555c3f0c0 in Explain_select::print_explain_json (this=0x7fff98022ea0, query=0x7fff980151c0, writer=0x7ffff43b4b80, is_analyze=true) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:905
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#12 0x0000555555c3ccca in Explain_query::print_explain_json (this=0x7fff980151c0, output=0x7fff98023688, is_analyze=true) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:224
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#13 0x0000555555c3ca0d in Explain_query::send_explain (this=0x7fff980151c0, thd=0x7fff98000b00) at /home/psergey/dev-git/10.2/sql/sql_explain.cc:167
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#14 0x0000555555ad87ba in execute_sqlcom_select (thd=0x7fff98000b00, all_tables=0x7fff980130c0) at /home/psergey/dev-git/10.2/sql/sql_parse.cc:6345
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#15 0x0000555555ace2ac in mysql_execute_command (thd=0x7fff98000b00) at /home/psergey/dev-git/10.2/sql/sql_parse.cc:3364
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#16 0x0000555555adbe46 in mysql_parse (thd=0x7fff98000b00, rawbuf=0x7fff98010d58 "analyze format=json with recursive src(counter) as (select 1 union select counter+1 from src where counter<10) select * from src", length=128, parser_state=0x7ffff43b5ca0, is_com_multi=false, is_next_command=false) at /home/psergey/dev-git/10.2/sql/sql_parse.cc:7759
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#17 0x0000555555ac9fa8 in dispatch_command (command=COM_QUERY, thd=0x7fff98000b00, packet=0x7fff98008611 "", packet_length=128, is_com_multi=false, is_next_command=false) at /home/psergey/dev-git/10.2/sql/sql_parse.cc:1793
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#18 0x0000555555ac89c4 in do_command (thd=0x7fff98000b00) at /home/psergey/dev-git/10.2/sql/sql_parse.cc:1353
|
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