diff options
Diffstat (limited to 'sql/sql_lex.h')
| -rw-r--r-- | sql/sql_lex.h | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/sql/sql_lex.h b/sql/sql_lex.h index 960e36f63b4..466b23b3f94 100644 --- a/sql/sql_lex.h +++ b/sql/sql_lex.h @@ -1,5 +1,5 @@ /* Copyright (c) 2000, 2019, Oracle and/or its affiliates. - Copyright (c) 2010, 2019, MariaDB Corporation. + Copyright (c) 2010, 2021, MariaDB Corporation This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -938,6 +938,10 @@ public: void init_query(); st_select_lex* outer_select(); + const st_select_lex* first_select() const + { + return reinterpret_cast<const st_select_lex*>(slave); + } st_select_lex* first_select() { return reinterpret_cast<st_select_lex*>(slave); @@ -1473,6 +1477,8 @@ public: bool save_leaf_tables(THD *thd); bool save_prep_leaf_tables(THD *thd); + void set_unique_exclude(); + bool is_merged_child_of(st_select_lex *ancestor); /* @@ -3081,7 +3087,8 @@ public: struct LEX: public Query_tables_list { SELECT_LEX_UNIT unit; /* most upper unit */ - inline SELECT_LEX *first_select_lex() {return unit.first_select();} + SELECT_LEX *first_select_lex() { return unit.first_select(); } + const SELECT_LEX *first_select_lex() const { return unit.first_select(); } private: SELECT_LEX builtin_select; @@ -4345,6 +4352,25 @@ public: return false; } + bool create_like() const + { + DBUG_ASSERT(!create_info.like() || + !first_select_lex()->item_list.elements); + return create_info.like(); + } + + bool create_select() const + { + DBUG_ASSERT(!create_info.like() || + !first_select_lex()->item_list.elements); + return first_select_lex()->item_list.elements; + } + + bool create_simple() const + { + return !create_like() && !create_select(); + } + SELECT_LEX *exclude_last_select(); SELECT_LEX *exclude_not_first_select(SELECT_LEX *exclude); void check_automatic_up(enum sub_select_type type); |