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MDEV-14551 Can't find record in table on multi-table update with ORDER BY

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preserve positions if the multi-update join is using tmp table:

* store positions in the tmp table if needed
  JOIN::add_fields_for_current_rowid()

* take positions from the tmp table, not from file->position():
  multi_update::prepare2()
This commit is contained in:
Sergei Golubchik
2018-04-04 15:34:40 +02:00
parent e17e798599
commit 28dbdf3d79
12 changed files with 218 additions and 12 deletions
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2
sql/sql_insert.cc
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@ -3786,7 +3786,7 @@ select_insert::prepare(List<Item> &values, SELECT_LEX_UNIT *u)
0 OK
*/
int select_insert::prepare2(void)
int select_insert::prepare2(JOIN *)
{
DBUG_ENTER("select_insert::prepare2");
if (thd->lex->current_select->options & OPTION_BUFFER_RESULT &&