diff --git a/src/backend/utils/error/elog.c b/src/backend/utils/error/elog.c
index 893f8a5b563..7112fb00069 100644
--- a/src/backend/utils/error/elog.c
+++ b/src/backend/utils/error/elog.c
@@ -1738,7 +1738,21 @@ CopyErrorData(void)
 	newedata = (ErrorData *) palloc(sizeof(ErrorData));
 	memcpy(newedata, edata, sizeof(ErrorData));
 
-	/* Make copies of separately-allocated fields */
+	/*
+	 * Make copies of separately-allocated strings.  Note that we copy even
+	 * theoretically-constant strings such as filename.  This is because those
+	 * could point into JIT-created code segments that might get unloaded at
+	 * transaction cleanup.  In some cases we need the copied ErrorData to
+	 * survive transaction boundaries, so we'd better copy those strings too.
+	 */
+	if (newedata->filename)
+		newedata->filename = pstrdup(newedata->filename);
+	if (newedata->funcname)
+		newedata->funcname = pstrdup(newedata->funcname);
+	if (newedata->domain)
+		newedata->domain = pstrdup(newedata->domain);
+	if (newedata->context_domain)
+		newedata->context_domain = pstrdup(newedata->context_domain);
 	if (newedata->message)
 		newedata->message = pstrdup(newedata->message);
 	if (newedata->detail)
@@ -1751,6 +1765,8 @@ CopyErrorData(void)
 		newedata->context = pstrdup(newedata->context);
 	if (newedata->backtrace)
 		newedata->backtrace = pstrdup(newedata->backtrace);
+	if (newedata->message_id)
+		newedata->message_id = pstrdup(newedata->message_id);
 	if (newedata->schema_name)
 		newedata->schema_name = pstrdup(newedata->schema_name);
 	if (newedata->table_name)