From 69e5cdc47fa1fbd97c8b8c7abe6fb0b9a9822acb Mon Sep 17 00:00:00 2001 From: Amit Kapila Date: Wed, 25 Jun 2025 10:25:15 +0530 Subject: [PATCH] Doc: Improve documentation of stream abort. Protocol v4 introduces parallel streaming, which allows Stream Abort messages to include additional abort information such as LSN and timestamp. However, the current documentation only states, "This field is available since protocol version 4," which may misleadingly suggest that the fields are always present when using protocol v4. This patch clarifies that the abort LSN and timestamp are included only when parallel streaming is enabled, even under protocol v4. Author: Anthonin Bonnefoy Reviewed-by: Amit Kapila Backpatch-through: 16, where it was introduced Discussion: https://postgr.es/m/CAO6_XqoKteQR1AnaR8iPcegbBE+HkAc2-g12rxN04yOt4-2ORg@mail.gmail.com --- doc/src/sgml/protocol.sgml | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/doc/src/sgml/protocol.sgml b/doc/src/sgml/protocol.sgml index 137ffc8d0b7..82fe3f93761 100644 --- a/doc/src/sgml/protocol.sgml +++ b/doc/src/sgml/protocol.sgml @@ -7292,8 +7292,8 @@ psql "dbname=postgres replication=database" -c "IDENTIFY_SYSTEM;" Int64 (XLogRecPtr) - The LSN of the abort. This field is available since protocol version - 4. + The LSN of the abort operation, present only when streaming is set to parallel. + This field is available since protocol version 4. @@ -7302,9 +7302,9 @@ psql "dbname=postgres replication=database" -c "IDENTIFY_SYSTEM;" Int64 (TimestampTz) - Abort timestamp of the transaction. The value is in number - of microseconds since PostgreSQL epoch (2000-01-01). This field is - available since protocol version 4. + Abort timestamp of the transaction, present only when streaming is set to + parallel. The value is in number of microseconds since PostgreSQL epoch (2000-01-01). + This field is available since protocol version 4.