kangpinghuang commented on a change in pull request #2979: Incomplete support
Array type (#2871)
URL: https://github.com/apache/incubator-doris/pull/2979#discussion_r386995575
##########
File path: be/src/util/mysql_row_buffer.h
##########
@@ -57,13 +57,44 @@ class MysqlRowBuffer {
int length() const {
return _pos - _buf;
}
+
+ /**
+ * Why?
+ * Because the Nested-Type's data need pushed multiple times, but mysql
protocal don't support nested type and each
+ * push will decide a column data.
+ *
+ * How?
+ * Dynamic mode allow we can push data in a column multiple times, and
allow recursive push.
+ * NOTE:Need to ensure the open() and close() appear in pairs
+ *
+ * the code:
+ * mrb.push_smallint(120);
+ * mrb.push_int(-30000);
+ * mrb.push_bigint(900000);
+ *
+ * In normal mode, the buffer contains three column:
+ * 1-'5'-3-'120'-6-'-30000'
Review comment:
Any documents for this example?
I do not quite understand.
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org
For additional commands, e-mail: commits-h...@doris.apache.org
