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Make LEX::print support single-table DELETE.

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This commit is contained in:
Sergei Petrunia 2020-11-30 15:19:25 +03:00
parent e34e53b554
commit 111963477b
1 changed files with 39 additions and 2 deletions
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41
sql/sql_lex.cc
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@ -3567,8 +3567,10 @@ void LEX::print(String *str, enum_query_type query_type)
str->append(STRING_WITH_LEN("UPDATE "));
if (ignore)
str->append(STRING_WITH_LEN("IGNORE "));
// table name
str->append(query_tables->alias);
// table name. If the query was using a view, we need
// the underlying table name, not the view name
TABLE_LIST *base_tbl= query_tables->table->pos_in_table_list;
base_tbl->print(thd, table_map(0), str, query_type);
str->append(STRING_WITH_LEN(" SET "));
// print item assignments
List_iterator<Item> it(sel->item_list);
@ -3608,6 +3610,41 @@ void LEX::print(String *str, enum_query_type query_type)
sel->select_limit->print(str, query_type);
}
}
else if (sql_command == SQLCOM_DELETE)
{
SELECT_LEX *sel= first_select_lex();
str->append(STRING_WITH_LEN("DELETE "));
if (ignore)
str->append(STRING_WITH_LEN("IGNORE "));
str->append(STRING_WITH_LEN("FROM "));
// table name. If the query was using a view, we need
// the underlying table name, not the view name
TABLE_LIST *base_tbl= query_tables->table->pos_in_table_list;
base_tbl->print(thd, table_map(0), str, query_type);
if (sel->where)
{
str->append(STRING_WITH_LEN(" WHERE "));
sel->where->print(str, query_type);
}
if (sel->order_list.elements)
{
str->append(STRING_WITH_LEN(" ORDER BY "));
for (ORDER *ord= sel->order_list.first; ord; ord= ord->next)
{
if (ord != sel->order_list.first)
str->append(STRING_WITH_LEN(", "));
(*ord->item)->print(str, query_type);
}
}
if (sel->select_limit)
{
str->append(STRING_WITH_LEN(" LIMIT "));
sel->select_limit->print(str, query_type);
}
}
else
DBUG_ASSERT(0); // Not implemented yet
}