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System Versioning pre0.12

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Merge remote-tracking branch 'origin/archive/2017-10-17' into 10.3
This commit is contained in:
Aleksey Midenkov
2017-11-07 00:37:49 +03:00
parent 835cbbcc7b ce66d5b2a5
commit d8d7251019
354 changed files with 20615 additions and 1638 deletions
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66
sql/sql_class.h
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@ -702,6 +702,12 @@ typedef struct system_variables
uint idle_write_transaction_timeout;
uint column_compression_threshold;
uint column_compression_zlib_level;
st_vers_current_time vers_current_time;
my_bool vers_force;
ulong vers_hide;
my_bool vers_innodb_algorithm_simple;
ulong vers_alter_history;
} SV;
/**
@ -938,6 +944,11 @@ public:
enum_state state;
protected:
friend class sp_head;
bool is_stored_procedure;
public:
/* We build without RTTI, so dynamic_cast can't be used. */
enum Type
{
@ -945,7 +956,8 @@ public:
};
Query_arena(MEM_ROOT *mem_root_arg, enum enum_state state_arg) :
free_list(0), mem_root(mem_root_arg), state(state_arg)
free_list(0), mem_root(mem_root_arg), state(state_arg),
is_stored_procedure(state_arg == STMT_INITIALIZED_FOR_SP ? true : false)
{ INIT_ARENA_DBUG_INFO; }
/*
This constructor is used only when Query_arena is created as
@ -965,6 +977,8 @@ public:
{ return state == STMT_PREPARED || state == STMT_EXECUTED; }
inline bool is_conventional() const
{ return state == STMT_CONVENTIONAL_EXECUTION; }
inline bool is_sp_execute() const
{ return is_stored_procedure; }
inline void* alloc(size_t size) { return alloc_root(mem_root,size); }
inline void* calloc(size_t size)
@ -1009,6 +1023,22 @@ public:
};
class Query_arena_stmt
{
THD *thd;
Query_arena backup;
Query_arena *arena;
public:
Query_arena_stmt(THD *_thd);
~Query_arena_stmt();
bool arena_replaced()
{
return arena != NULL;
}
};
class Server_side_cursor;
/**
@ -3287,6 +3317,7 @@ public:
inline my_time_t query_start() { query_start_used=1; return start_time; }
inline ulong query_start_sec_part()
{ query_start_sec_part_used=1; return start_time_sec_part; }
MYSQL_TIME query_start_TIME();
inline void set_current_time()
{
my_hrtime_t hrtime= my_hrtime();
@ -4083,7 +4114,12 @@ public:
Lex_input_stream *lip= &m_parser_state->m_lip;
if (!yytext)
{
if (!(yytext= lip->get_tok_start()))
if (lip->lookahead_token >= 0)
yytext= lip->get_tok_start_prev();
else
yytext= lip->get_tok_start();
if (!yytext)
yytext= "";
}
/* Push an error into the error stack */
@ -5712,6 +5748,12 @@ class multi_update :public select_result_interceptor
/* Need this to protect against multiple prepare() calls */
bool prepared;
// For System Versioning (may need to insert new fields to a table).
ha_rows updated_sys_ver;
bool has_vers_fields;
public:
multi_update(THD *thd_arg, TABLE_LIST *ut, List<TABLE_LIST> *leaves_list,
List<Item> *fields, List<Item> *values,
@ -6229,6 +6271,24 @@ inline bool lex_string_eq(const LEX_CSTRING *a,
return strcasecmp(a->str, b->str) != 0;
}
#endif /* MYSQL_SERVER */
class ScopedStatementReplication
{
public:
ScopedStatementReplication(THD *thd) : thd(thd)
{
if (thd)
saved_binlog_format= thd->set_current_stmt_binlog_format_stmt();
}
~ScopedStatementReplication()
{
if (thd)
thd->restore_stmt_binlog_format(saved_binlog_format);
}
private:
enum_binlog_format saved_binlog_format;
THD *thd;
};
#endif /* MYSQL_SERVER */
#endif /* SQL_CLASS_INCLUDED */