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| 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 | fea2b70dd4deccb2c803d94493a164097b0af662 (patch) | |
| tree | 4567fcb34aa1bf58492935e3069e58b2f3053917 | |
| parent | 4b212b7c87754095d4f89b03a3aaec6e32d09342 (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 9f3f108b86d..b3d1232f993 100644 --- a/doc/src/sgml/protocol.sgml +++ b/doc/src/sgml/protocol.sgml @@ -1425,7 +1425,10 @@ 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 d65dd98a579..110726bd5f5 100644 --- a/src/backend/replication/walsender.c +++ b/src/backend/replication/walsender.c @@ -460,6 +460,10 @@ 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 */ |