diff options
| author | Bruce Momjian <bruce@momjian.us> | 2020-11-12 14:33:28 -0500 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2020-11-12 14:33:28 -0500 |
| commit | fe904ac20bd042edf05cc450541cdcd811d4137d (patch) | |
| tree | 7309fd1e9c2ed44343d3c81e6d09348a867fcc9b | |
| parent | 068de9dd40340517e7e5954b3eeb17cdcc834180 (diff) | |
doc: wire protocol data type for history file content is bytea
Document that though the history file content is marked as bytea, it is
the same a text, and neither is btyea-escaped or encoding converted.
Reported-by: Brar Piening
Discussion: https://postgr.es/m/6a1b9cd9-17e3-df67-be55-86102af6bdf5@gmx.de
Backpatch-through: 13 - 9.5 (not master)
| -rw-r--r-- | doc/src/sgml/protocol.sgml | 5 | ||||
| -rw-r--r-- | src/backend/replication/walsender.c | 4 |
2 files changed, 8 insertions, 1 deletions
diff --git a/doc/src/sgml/protocol.sgml b/doc/src/sgml/protocol.sgml index 3177abcd918..67a00493606 100644 --- a/doc/src/sgml/protocol.sgml +++ b/doc/src/sgml/protocol.sgml @@ -1623,7 +1623,10 @@ The commands accepted in walsender mode are: <para> Requests the server to send over the timeline history file for timeline <replaceable class="parameter">tli</replaceable>. Server replies with a - result set of a single row, containing two fields: + result set of a single row, containing two fields. While the + fields are labeled as <type>text</type> and <type>bytea</type>, + they effectively return raw bytes, with no escaping or encoding + conversion: </para> <para> diff --git a/src/backend/replication/walsender.c b/src/backend/replication/walsender.c index 907fdad7752..0e3b8d3694f 100644 --- a/src/backend/replication/walsender.c +++ b/src/backend/replication/walsender.c @@ -463,6 +463,10 @@ SendTimeLineHistory(TimeLineHistoryCmd *cmd) pq_sendstring(&buf, "content"); /* col name */ pq_sendint(&buf, 0, 4); /* table oid */ pq_sendint(&buf, 0, 2); /* attnum */ + /* + * While this is labeled as BYTEAOID, it is the same output format + * as TEXTOID above. + */ pq_sendint(&buf, BYTEAOID, 4); /* type oid */ pq_sendint(&buf, -1, 2); /* typlen */ pq_sendint(&buf, 0, 4); /* typmod */ |