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Improve error messages for some callers of XLogReadRecord()

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A couple of code paths related to logical decoding (WAL sender, slot
advancing, etc.) use XLogReadRecord(), feeding on error messages
generated by walreader.c on a failure.  All those messages have no
context, making it harder to spot from where an error could come even if
these should not happen.  All the other callers of XLogReadRecord() do
that already.

Reviewed-by: Kyotaro Horiguchi
Discussion: https://postgr.es/m/YYnTH6OyOwQcAdkw@paquier.xyz
This commit is contained in:
Michael Paquier
2021-11-10 12:00:33 +09:00
parent 4168a47454
commit c9c401a5e1
4 changed files with 7 additions and 5 deletions
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3
src/backend/replication/walsender.c
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@@ -2979,7 +2979,8 @@ XLogSendLogical(void)
/* xlog record was invalid */
if (errm != NULL)
elog(ERROR, "%s", errm);
elog(ERROR, "could not find record while sending logically-decoded data: %s",
errm);
if (record != NULL)
{