BUG #16165: Query Works fine but spam so many LOG: unrecognized win32 error code: 38 - Mailing list pgsql-bugs

The following bug has been logged on the website:

Bug reference:      16165
Logged by:          Sasuke Vita
Email address:      kadib001@gmail.com
PostgreSQL version: 12.1
Operating system:   Windows Server 2016
Description:

i just realize when see postgre log, seeing so many spam log, it was query
for insertbulk from my app.

i try to manual produce the error using PGAdmin 4.16, then execute sql:

CREATE TABLE "#LOG_TEMP"
     (
     "TerminalId" integer NOT NULL,
     "PIN" character varying(20) COLLATE pg_catalog."default" NOT NULL,
     "AttDate" date NOT NULL,
     "AttHourMinute" time without time zone NOT NULL,
     "AttTime" time without time zone NOT NULL,
     "InOutMode" integer NOT NULL,
     "VerifyMode" smallint NOT NULL,
     "WorkCode" integer
     );
    INSERT INTO
"#LOG_TEMP"("TerminalId","PIN","AttDate","AttHourMinute","AttTime","InOutMode","VerifyMode","WorkCode")
    VALUES(436,'203030029','2020-01-01','12:34:00','12:34:56',1,0,NULL),
    (436,'203030029','2020-01-01','13:34:00','13:34:56',1,0,NULL);
    
    WITH "cte" AS ( SELECT ROW_NUMBER() OVER(PARTITION BY "TerminalId", "PIN",
"AttDate", "AttHourMinute" ORDER BY "AttDate" DESC, "AttTime" DESC) AS
"RN",
    "TerminalId", "PIN", "AttDate", "AttHourMinute", "AttTime", "InOutMode",
"VerifyMode", "WorkCode" FROM "#LOG_TEMP" )
    INSERT INTO "IClock"."LOG_TEMP"("TerminalId",
"PIN","AttDate","AttHourMinute","AttTime","InOutMode","VerifyMode","WorkCode","CreateBy","CreateDate")
    SELECT t."TerminalId", t."PIN", t."AttDate", t."AttHourMinute",
t."AttTime", t."InOutMode", t."VerifyMode", t."WorkCode", '#TEMPORARY',
'2020-01-01 00:00:00'
    FROM (SELECT * FROM "cte" WHERE "RN" = 1) t
    WHERE NOT EXISTS (SELECT 1 FROM "IClock"."LOG_TEMP" WHERE
t."TerminalId"="TerminalId" AND t."PIN"="PIN" AND t."AttDate"="AttDate" AND
t."AttHourMinute"="AttHourMinute");
    
    DROP TABLE "#LOG_TEMP";

then got log message unrecognized win32 error code: 38

2019-12-14 09:12:49.377 +07 [12128] LOG:  unrecognized win32 error code:
38
2019-12-14 09:12:49.377 +07 [12128] STATEMENT:  CREATE TABLE "#LOG_TEMP"
     (
     "TerminalId" integer NOT NULL,
     "PIN" character varying(20) COLLATE pg_catalog."default" NOT NULL,
     "AttDate" date NOT NULL,
     "AttHourMinute" time without time zone NOT NULL,
     "AttTime" time without time zone NOT NULL,
     "InOutMode" integer NOT NULL,
     "VerifyMode" smallint NOT NULL,
     "WorkCode" integer
     );
    INSERT INTO
"#LOG_TEMP"("TerminalId","PIN","AttDate","AttHourMinute","AttTime","InOutMode","VerifyMode","WorkCode")
    VALUES(436,'203030029','2020-01-01','12:34:00','12:34:56',1,0,NULL),
    (436,'203030029','2020-01-01','13:34:00','13:34:56',1,0,NULL);
    
    WITH "cte" AS ( SELECT ROW_NUMBER() OVER(PARTITION BY "TerminalId", "PIN",
"AttDate", "AttHourMinute" ORDER BY "AttDate" DESC, "AttTime" DESC) AS
"RN",
    "TerminalId", "PIN", "AttDate", "AttHourMinute", "AttTime", "InOutMode",
"VerifyMode", "WorkCode" FROM "#LOG_TEMP" )
    INSERT INTO "IClock"."LOG_TEMP"("TerminalId",
"PIN","AttDate","AttHourMinute","AttTime","InOutMode","VerifyMode","WorkCode","CreateBy","CreateDate")
    SELECT t."TerminalId", t."PIN", t."AttDate", t."AttHourMinute",
t."AttTime", t."InOutMode", t."VerifyMode", t."WorkCode", '#TEMPORARY',
'2020-01-01 00:00:00'
    FROM (SELECT * FROM "cte" WHERE "RN" = 1) t
    WHERE NOT EXISTS (SELECT 1 FROM "IClock"."LOG_TEMP" WHERE
t."TerminalId"="TerminalId" AND t."PIN"="PIN" AND t."AttDate"="AttDate" AND
t."AttHourMinute"="AttHourMinute");
    
    
    DROP TABLE "#LOG_TEMP";

the query works fine, but why spam logs, LOG:  unrecognized win32 error
code: 38?