Changeset: b004c89b829c for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/b004c89b829c
Modified Files:
sql/backends/monet5/sql_result.c
Branch: Mar2025
Log Message:
Update comment.
diffs (24 lines):
diff --git a/sql/backends/monet5/sql_result.c b/sql/backends/monet5/sql_result.c
--- a/sql/backends/monet5/sql_result.c
+++ b/sql/backends/monet5/sql_result.c
@@ -1666,7 +1666,11 @@ mvc_export_head(backend *b, stream *s, i
return -4;
/* row count, min(count, reply_size) */
- /* the columnar protocol ignores the reply size by fetching the entire
resultset at once, so don't set it */
+ /* the columnar protocol ignores the reply size by fetching the
+ * entire resultset at once, so don't set it; also, the MAPI
+ * protocol doesn't allow for retrieving rows using the Xexport*
+ * commands for Q_PREPARE results (due to an oversight), so we send
+ * it all in the first response */
if (mvc_send_int(s, (b->client && b->client->protocol !=
PROTOCOL_COLUMNAR && m->reply_size >= 0 && (BUN) m->reply_size < count &&
t->query_type != Q_PREPARE) ? m->reply_size : (int) count) != 1)
return -4;
@@ -1820,6 +1824,7 @@ mvc_export_result(backend *b, stream *s,
return mvc_export_table_columnar(s, t, m->scanner.rs);
}
+ /* for Q_PREPARE results, send everything */
count = t->query_type == Q_PREPARE ? t->nr_rows : (BUN) m->reply_size;
if (m->reply_size != -2 && (count <= 0 || count >= t->nr_rows)) {
count = t->nr_rows;
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