Parser: syntax extension FOR SYSTEM_TIME ALL

mysql-test/suite/versioning/r/select.result

@@ -59,6 +59,7 @@ select x as FROMTO_x, y from t1 for system_time from timestamp '0-0-0 0:0:0' to
 select x as BETWAND_x, y from t1 for system_time between timestamp '0-0-0 0:0:0' and timestamp @t1;
 select x as FROMTO_ext_x, y from t1 for system_time from timestamp '0-0-0 0:0:0' to timestamp @t1;
 select x as BETWAND_ext_x, y from t1 for system_time between timestamp '0-0-0 0:0:0' and timestamp @t1;
+select x as ALL_x, y from t1 for system_time all;
 if engine = 'innodb' then
 select x as ASOF2_x, y from t1 for system_time as of transaction @x0;
 select x as FROMTO2_x, y from t1 for system_time from transaction 0 to transaction @x1;
@@ -169,6 +170,18 @@ BETWAND_ext_x	y
 8	108
 9	109
 3	33
+ALL_x	y
+0	100
+1	101
+2	102
+3	103
+4	104
+5	105
+6	106
+7	107
+8	108
+9	109
+3	33
 call test_01('bigint unsigned', 'innodb', 'vtq_commit_ts(sys_start)');
 x	y
 0	100
@@ -236,6 +249,18 @@ BETWAND_ext_x	y
 8	108
 9	109
 3	33
+ALL_x	y
+0	100
+1	101
+2	102
+3	103
+4	104
+5	105
+6	106
+7	107
+8	108
+9	109
+3	33
 ASOF2_x	y
 0	100
 1	101

mysql-test/suite/versioning/t/select.test

@@ -48,6 +48,7 @@ begin
   select x as BETWAND_x, y from t1 for system_time between timestamp '0-0-0 0:0:0' and timestamp @t1;
   select x as FROMTO_ext_x, y from t1 for system_time from timestamp '0-0-0 0:0:0' to timestamp @t1;
   select x as BETWAND_ext_x, y from t1 for system_time between timestamp '0-0-0 0:0:0' and timestamp @t1;
+  select x as ALL_x, y from t1 for system_time all;
 
   if engine = 'innodb' then
       select x as ASOF2_x, y from t1 for system_time as of transaction @x0;
@@ -77,18 +78,18 @@ begin
   prepare stmt from @str; execute stmt; drop prepare stmt;
   set @str= concat('create or replace table t2', @str0);
   prepare stmt from @str; execute stmt; drop prepare stmt;
-  
+
   insert into t1 values (1, 1), (1, 2), (1, 3), (4, 4), (5, 5);
   insert into t2 values (1, 2), (2, 1), (3, 1);
   set @t0= now(6);
-  
+
   select t1.x as IJ1_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 inner join t2 on t1.x = t2.x;
   select t1.x as LJ1_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 left join t2 on t1.x = t2.x;
   select t1.x as RJ1_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 right join t2 on t1.x = t2.x;
-  
+
   delete from t1;
   delete from t2;
-  
+
   select t1.x as IJ2_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 inner join t2 on t1.x = t2.x
   for system_time as of timestamp @t0;  
   select t1.x as LJ2_x1, t1.y as y1, t2.x as x2, t2.y as y2 from t1 left join t2 on t1.x = t2.x

sql/sql_yacc.yy

@@ -8712,6 +8712,16 @@ opt_for_system_time_clause:
               MYSQL_YYABORT;
             Lex->current_select->vers_conditions.init(FOR_SYSTEM_TIME_AS_OF, UNIT_TIMESTAMP, item);
           }
+        | FOR_SYSTEM_TIME_SYM ALL
+          {
+            static MYSQL_TIME min= { TIMESTAMP_MIN_YEAR, 1, 1, 0, 0, 0, 0, false, MYSQL_TIMESTAMP_DATETIME };
+            static MYSQL_TIME max= { TIMESTAMP_MAX_YEAR, 12, 31, 23, 59, 59, 0, false, MYSQL_TIMESTAMP_DATETIME };
+            Item *t0= new (thd->mem_root) Item_datetime_literal(thd, &min);
+            Item *t1= new (thd->mem_root) Item_datetime_literal(thd, &max);
+            if (!t0 || !t1)
+              MYSQL_YYABORT;
+            Lex->current_select->vers_conditions.init(FOR_SYSTEM_TIME_BETWEEN, UNIT_TIMESTAMP, t0, t1);
+          }
         | FOR_SYSTEM_TIME_SYM
           FROM
           trans_or_timestamp