From a9ec25c45e5fc9cc99a3a205c5490172fa16e097 Mon Sep 17 00:00:00 2001 From: Robert Haas Date: Thu, 24 Jul 2025 13:30:43 -0400 Subject: [PATCH v1] Avoid throwing away the error message in syncrep_yyerror. Commit 473a575e05979b4dbb28b3f2544f4ec8f184ce65 purported to make this function stash the error message in *syncrep_parse_result_p, but it didn't actually. As a result, an attempt to set synchronous_standby_names to any value that does not parse resulted in a generic "parser failed." message rather than anything more specific. This fixes that. --- src/backend/replication/syncrep_scanner.l | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/src/backend/replication/syncrep_scanner.l b/src/backend/replication/syncrep_scanner.l index 7dec1f869c7..02004d621e7 100644 --- a/src/backend/replication/syncrep_scanner.l +++ b/src/backend/replication/syncrep_scanner.l @@ -157,17 +157,16 @@ syncrep_yyerror(SyncRepConfigData **syncrep_parse_result_p, char **syncrep_parse { struct yyguts_t *yyg = (struct yyguts_t *) yyscanner; /* needed for yytext * macro */ - char *syncrep_parse_error_msg = *syncrep_parse_error_msg_p; /* report only the first error in a parse operation */ - if (syncrep_parse_error_msg) + if (*syncrep_parse_error_msg_p) return; if (yytext[0]) - syncrep_parse_error_msg = psprintf("%s at or near \"%s\"", - message, yytext); + *syncrep_parse_error_msg_p = psprintf("%s at or near \"%s\"", + message, yytext); else - syncrep_parse_error_msg = psprintf("%s at end of input", - message); + *syncrep_parse_error_msg_p = psprintf("%s at end of input", + message); } void -- 2.39.5 (Apple Git-154)