Update direct_path_load.mdx

[yuki-tei]

Hi,
Greetings. Hope you are doing well and healthy.

What Changed?

This same issue is found initially in EPAS15 but still exists in EPAS18.
Since its impact is huge, note shall be described in this page. Also, this change should be reflected into all affected versions:
15~18

[enterprisedb@edbsup04 ~]$ psql -p 5446
psql (18.3.0)
Type "help" for help.

edb=# SELECT version()
edb-# ;
                                                                     version
-------------------------------------------------------------------------------------------------------------------------------------------------
 PostgreSQL 18.3 (EnterpriseDB Advanced Server 18.3.0) on x86_64-pc-linux-gnu, compiled by gcc (GCC) 11.5.0 20240719 (Red Hat 11.5.0-11), 64-bit
(1 row)

edb=# CREATE TABLE test(col1 int);
CREATE TABLE
edb=#
\q
[enterprisedb@edbsup04 ~]$ for i in $(seq 1 10)
do
  echo $i
done >> test.txt
[enterprisedb@edbsup04 ~]$ cat test.txt
1
2
3
4
5
6
7
8
9
10

[enterprisedb@edbsup04 ~]$ cat test.ctl
LOAD DATA
  INFILE 'test.txt'
  BADFILE 'test.bad'
APPEND
INTO TABLE test
  FIELDS TERMINATED BY ','
    OPTIONALLY ENCLOSED BY '"'
  TRAILING NULLCOLS
(
  col1
)
[enterprisedb@edbsup04 ~]$ edbldr -p 5446 USERID=enterprisedb/edb CONTROL=test.ctl DIRECT=TRUE
EDB*Loader: Copyright (c) 2007-2025, EnterpriseDB Corporation.

WARNING:  bulk load will not be WAL-logged
HINT:  Continuous archive will not include the loaded data. You must take a new base backup after the load is finished
Successfully processed (10) records
[enterprisedb@edbsup04 ~]$ psql
psql (18.3.0)
Type "help" for help.

edb=#
\q
[enterprisedb@edbsup04 ~]$ psql -p 5446
psql (18.3.0)
Type "help" for help.

edb=# SELECT * FROM test;
ERROR:  invalid page in block 0 of relation "base/14362/16384"

Hope you can take a look.

Kind Regards,
Yuki Tei

[gvasquezvargas]

Here too, let's see if we can add the subject of this action:

Suggested change

	Currently, a direct path load toward TDE database shall not be performed, because it will cause permanent and unrecoverable damage to the relation files in data-block level.
	Don't use a direct path to load data into the TDE database. This will cause permanent and unrecoverable damage to the relation files at the data-block level.

[yuki-tei]

Hi,
Since I am not sure if I'm authorized to commit directly, let me leave a comment instead.
Yes, I agree to your change. Please go ahead to commit your change, as long as your team think it's ok.

Kind Regards,
Yuki Tei