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MDEV-21689 Add Sql_cmd for GRANT/REVOKE statements

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Rewriting GRANT/REVOKE grammar to use more bison stack and use Sql_cmd_ style

1. Removing a few members from LEX:
   - uint grant, grant_to_col, which_columns
   - List<LEX_COLUMN> columns
   - bool all_privileges
2. Adding classes Grand_object_name, Lex_grant_object_name
3. Adding classes Grand_privilege, Lex_grand_privilege
4. Adding struct Lex_column_list_privilege_st, class Lex_column_list_privilege
5. Rewriting the GRANT/REVOKE grammar to use new classes and pass them through
   bison stack (rather than directly access LEX members)
6. Adding classes Sql_cmd_grant* and Sql_cmd_revoke*,
   changing GRANT/REVOKE to use LEX::m_sql_cmd.
7. Adding the "sp_handler" grammar rule and removing some duplicate grammar
   for GRANT/REVOKE for different kinds of SP objects.
8. Adding a new rule comma_separated_ident_list, reusing it in:
   - with_column_list
   - colum_list_privilege
This commit is contained in:
Alexander Barkov 2020-02-05 12:43:17 +04:00
commit 77c6382312
13 changed files with 813 additions and 317 deletions
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4
sql/sql_cte.h
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@ -111,7 +111,7 @@ public:
inherited from the query that specified the table. Otherwise the list is
always empty.
*/
List <LEX_CSTRING> column_list;
List <Lex_ident_sys> column_list;
/* The query that specifies the table introduced by this with element */
st_select_lex_unit *spec;
/*
@ -163,7 +163,7 @@ public:
SQL_I_List<TABLE_LIST> derived_with_rec_ref;
With_element(LEX_CSTRING *name,
List <LEX_CSTRING> list,
List <Lex_ident_sys> list,
st_select_lex_unit *unit)
: next(NULL), base_dep_map(0), derived_dep_map(0),
sq_dep_map(0), work_dep_map(0), mutually_recursive(0),