File: temp_table_symlink.test

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source include/not_windows.inc;

#
# MDEV-23569 temporary tables can overwrite existing files
#

let datadir=`select @@datadir`;
create table d1 (a int);
create temporary table t1 (a int);
perl;
chdir "$ENV{MYSQL_TMP_DIR}/mysqld.1/";
for (<#sql*.MYI>) {
  /^(#sql-temptable-[0-9a-f]+)(-[0-9a-f]+-)([0-9a-f]+)\.MYI$/ or die $_;
  symlink "$ENV{datadir}/test/d1.MYI", sprintf "$1$2%x.MYI", hex($3)+1;
  symlink "$ENV{datadir}/test/d1.MYI", sprintf "$1$2%x.MAI", hex($3)+2;
  symlink "$ENV{datadir}/test/d1.MYI", sprintf "$1$2%x.MAI", hex($3)+3;
  symlink "$ENV{datadir}/test/d1.MYI", sprintf "$1$2%x.MAI", hex($3)+4;
  symlink "$ENV{datadir}/test/d1.MYI", "$1-0.MAI";
}
EOF

error 1,1030;
create temporary table t2 (a int);
error 1,1030;
create temporary table t3 (a int) engine=Aria;
--disable_view_protocol
error 1,1030;
select * from information_schema.columns where table_schema='test';
--enable_view_protocol

flush tables;
select * from d1;
drop temporary table t1;
remove_files_wildcard $MYSQL_TMP_DIR/mysqld.1 *sql*;
drop table d1;