\unset ECHO
1|colon flag value|1
2|compare flag value|16
3|noextensions value|0
4|allextensions value|1023
5|default flags GUC|1023
6|colon extension enabled by default|b
0
7|colon extension disabled|
17
8|colon extension re-enabled in subtransaction|b
9|combined flags in subtransaction|17
10|flags reverted after rollback to savepoint|
11|flags reverted after outer rollback|1023