master + large-object-data-at-exec-fix.patch:

LOG:  statement: BEGIN
LOG:  fastpath function call: "lo_creat" (OID 957)
LOG:  fastpath function call: "lo_open" (OID 952)
LOG:  fastpath function call: "lo_lseek" (OID 956)
LOG:  fastpath function call: "lowrite" (OID 955)
LOG:  fastpath function call: "lo_close" (OID 953)
LOG:  statement: COMMIT
LOG:  execute _PLAN0xfb58f0/_PLAN0xfb58f0: INSERT INTO lo_test_tab VALUES (101, $1)
DETAIL:  parameters: $1 = '16617'
LOG:  statement: DEALLOCATE "_PLAN0xfb58f0"

REL-09_03_0400:

LOG:  statement: BEGIN
LOG:  execute <unnamed>: SELECT pg_catalog.lo_creat($1)
DETAIL:  parameters: $1 = '393216'
LOG:  execute <unnamed>: SELECT pg_catalog.lo_open($1, $2)
DETAIL:  parameters: $1 = '16688', $2 = '131072'
LOG:  execute <unnamed>: SELECT pg_catalog.lo_lseek($1, $2, $3)
DETAIL:  parameters: $1 = '0', $2 = '0', $3 = '0'
LOG:  execute <unnamed>: SELECT pg_catalog.lowrite($1, $2)
DETAIL:  parameters: $1 = '0', $2 = '\x0102030405060708'
LOG:  execute <unnamed>: SELECT pg_catalog.lo_close($1)
DETAIL:  parameters: $1 = '0'
LOG:  statement: COMMIT
LOG:  execute _PLAN0x1bf71f0: INSERT INTO lo_test_tab VALUES (101, $1)
DETAIL:  parameters: $1 = '16688'
LOG:  statement: DEALLOCATE "_PLAN0x1bf71f0"