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Merge 10.5 into 10.6

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This commit is contained in:
Marko Mäkelä
2021-05-26 11:22:40 +03:00
parent 71e1ddda22 365cd08345
commit 860e754349
65 changed files with 1544 additions and 344 deletions
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56
sql/sql_class.cc
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@ -2804,6 +2804,62 @@ void THD::close_active_vio()
#endif
/*
@brief MySQL parser used for recursive invocations
@param old_lex The LEX structure in the state when this parser
is called recursively
@param lex The LEX structure used to parse a new SQL fragment
@param str The SQL fragment to parse
@param str_len The length of the SQL fragment to parse
@param stmt_prepare_mode true <=> when parsing a prepare statement
@details
This function is to be used when parsing of an SQL fragment is
needed within one of the grammar rules.
@notes
Currently the function is used only when the specification of a CTE
is parsed for the not first and not recursive references of the CTE.
@retval false On a successful parsing of the fragment
@retval true Otherwise
*/
bool THD::sql_parser(LEX *old_lex, LEX *lex,
char *str, uint str_len, bool stmt_prepare_mode)
{
extern int MYSQLparse(THD * thd);
extern int ORAparse(THD * thd);
bool parse_status= false;
Parser_state parser_state;
Parser_state *old_parser_state= m_parser_state;
if (parser_state.init(this, str, str_len))
return true;
m_parser_state= &parser_state;
parser_state.m_lip.stmt_prepare_mode= stmt_prepare_mode;
parser_state.m_lip.multi_statements= false;
parser_state.m_lip.m_digest= NULL;
lex->param_list= old_lex->param_list;
lex->sphead= old_lex->sphead;
lex->spname= old_lex->spname;
lex->spcont= old_lex->spcont;
lex->sp_chistics= old_lex->sp_chistics;
lex->trg_chistics= old_lex->trg_chistics;
parse_status= (variables.sql_mode & MODE_ORACLE) ?
ORAparse(this) : MYSQLparse(this) != 0;
m_parser_state= old_parser_state;
return parse_status;
}
struct Item_change_record: public ilink
{
Item **place;