Cost and execution plan

Hi

We are facing an issue where the cost shows up "cost=10000000000.00" so
trying to find where that is set.

Could anyone point me to the code where the cost "cost=10000000000.00" is
set?

It doesn't show up when searching through find.

find . -type f -print | xargs grep 10000000000 | grep -v "/test/" | grep -v
"/btree_gist/"
./postgresql-9.6.12/contrib/pgcrypto/sql/blowfish.sql:decode('1000000000000001',
'hex'),
./postgresql-9.6.12/contrib/pgcrypto/expected/blowfish.out:decode('1000000000000001',
'hex'),
./postgresql-9.6.12/doc/src/sgml/html/functions-admin.html:
00000001000000000000000D | 4039624
./postgresql-9.6.12/doc/src/sgml/html/wal-internals.html:>000000010000000000000000</TT
./postgresql-9.6.12/doc/src/sgml/func.sgml: 00000001000000000000000D |
4039624
./postgresql-9.6.12/doc/src/sgml/wal.sgml:
<filename>000000010000000000000000</filename>. The numbers do not wrap,
./postgresql-9.6.12/src/bin/pg_archivecleanup/pg_archivecleanup.c: *
000000010000000000000010.partial and
./postgresql-9.6.12/src/bin/pg_archivecleanup/pg_archivecleanup.c: *
000000010000000000000010.00000020.backup are after
./postgresql-9.6.12/src/bin/pg_archivecleanup/pg_archivecleanup.c: *
000000010000000000000010.
./postgresql-9.6.12/src/bin/pg_archivecleanup/pg_archivecleanup.c:
" pg_archivecleanup /mnt/server/archiverdir
000000010000000000000010.00000020.backup\n");
./postgresql-9.6.12/src/backend/utils/adt/numeric.c: * For input like
10000000000, we must treat stripped digits as real. So
./postgresql-9.6.12/src/backend/utils/adt/numeric.c: * For input like
10000000000, we must treat stripped digits as real. So
./postgresql-9.6.12/src/backend/utils/adt/cash.c: m4 = (val /
INT64CONST(100000000000)) % 1000; /* billions */
./postgresql-9.6.12/src/backend/utils/adt/cash.c: m5 = (val /
INT64CONST(100000000000000)) % 1000; /* trillions */
./postgresql-9.6.12/src/backend/utils/adt/cash.c: m6 = (val /
INT64CONST(100000000000000000)) % 1000; /* quadrillions */
./postgresql-9.6.12/src/backend/utils/adt/date.c:
10000000000.0
./postgresql-9.6.12/src/include/utils/date.h:#define TIME_PREC_INV
10000000000.0

Thanks