| enumerator | :: | CONNECTION_OK | = | 0 | |
| enumerator | :: | CONNECTION_BAD | = | 1 | |
| enumerator | :: | CONNECTION_MADE | = | 2 | |
| enumerator | :: | CONNECTION_AWAITING_RESPONSE | = | 3 | |
| enumerator | :: | CONNECTION_AUTH_OK | = | 4 | |
| enumerator | :: | CONNECTION_SETENV | = | 5 | |
| enumerator | :: | CONNECTION_SSL_STARTUP | = | 6 | |
| enumerator | :: | CONNECTION_NEEDED | = | 7 | |
| enumerator | :: | CONNECTION_CHECK_WRITABLE | = | 8 | |
| enumerator | :: | CONNECTION_CONSUME | = | 9 | |
| enumerator | :: | CONNECTION_GSS_STARTUP | = | 10 | |
| enumerator | :: | CONNECTION_CHECK_TARGET | = | 11 | |
| enumerator | :: | CONNECTION_CHECK_STANDBY | = | 12 |
| enumerator | :: | PGRES_EMPTY_QUERY | = | 0 | |
| enumerator | :: | PGRES_COMMAND_OK | = | 1 | |
| enumerator | :: | PGRES_TUPLES_OK | = | 2 | |
| enumerator | :: | PGRES_COPY_OUT | = | 3 | |
| enumerator | :: | PGRES_COPY_IN | = | 4 | |
| enumerator | :: | PGRES_BAD_RESPONSE | = | 5 | |
| enumerator | :: | PGRES_NONFATAL_ERROR | = | 6 | |
| enumerator | :: | PGRES_FATAL_ERROR | = | 7 | |
| enumerator | :: | PGRES_COPY_BOTH | = | 8 | |
| enumerator | :: | PGRES_SINGLE_TUPLE | = | 9 | |
| enumerator | :: | PGRES_PIPELINE_SYNC | = | 10 | |
| enumerator | :: | PGRES_PIPELINE_ABORTED | = | 11 |
| enumerator | :: | PQPING_OK | = | 0 | |
| enumerator | :: | PQPING_REJECT | = | 1 | |
| enumerator | :: | PQPING_NO_RESPONSE | = | 2 | |
| enumerator | :: | PQPING_NO_ATTEMPT | = | 3 |
| enumerator | :: | PQ_PIPELINE_OFF | = | 0 | |
| enumerator | :: | PQ_PIPELINE_ON | = | 1 | |
| enumerator | :: | PQ_PIPELINE_ABORTED | = | 2 |
| enumerator | :: | PQTRANS_IDLE | = | 0 | |
| enumerator | :: | PQTRANS_ACTIVE | = | 1 | |
| enumerator | :: | PQTRANS_INTRANS | = | 2 | |
| enumerator | :: | PQTRANS_INERROR | = | 3 | |
| enumerator | :: | PQTRANS_UNKNOWN | = | 4 |
| enumerator | :: | PGRES_POLLING_FAILED | = | 0 | |
| enumerator | :: | PGRES_POLLING_READING | = | 1 | |
| enumerator | :: | PGRES_POLLING_WRITING | = | 2 | |
| enumerator | :: | PGRES_POLLING_OK | = | 3 | |
| enumerator | :: | PGRES_POLLING_ACTIVE | = | 4 |
| enumerator | :: | PQERRORS_TERSE | = | 0 | |
| enumerator | :: | PQERRORS_DEFAULT | = | 1 | |
| enumerator | :: | PQERRORS_VERBOSE | = | 2 | |
| enumerator | :: | PQERRORS_SQLSTATE | = | 3 |
| enumerator | :: | PQSHOW_CONTEXT_NEVER | = | 0 | |
| enumerator | :: | PQSHOW_CONTEXT_ERRORS | = | 1 | |
| enumerator | :: | PQSHOW_CONTEXT_ALWAYS | = | 2 |