add test case

tests/script/general/parser/tbname_escape.sim

+system sh/stop_dnodes.sh
+
+
+system sh/deploy.sh -n dnode1 -i 1
+system sh/cfg.sh -n dnode1 -c walLevel -v 1
+system sh/exec.sh -n dnode1 -s start
+
+sleep 100
+sql connect
+print ======================== dnode1 start
+
+sql create database dbesc;
+
+sql use dbesc;
+
+sql_error create stable `dbesc`.stba (ts timestamp, f1 int) tags(t1 int);
+
+sql create stable `!.!.!` (ts timestamp, f1 int) tags(t1 int);
+sql create stable 'st1' (ts timestamp, f1 int) tags(t1 int)  ;
+sql create table `.,@` (ts timestamp, f1 int);
+
+sql_error create table ',?,?,?' using dbesc.`!.!.!` tags(1);
+sql_error create table `ab`` using dbesc.`!.!.!` tags(2);
+
+sql create table `,?,?,?` using dbesc.`!.!.!` tags(1);
+sql create table `~!@#\$%^&*()_+|\][{}a,./<>?0` using dbesc.`!.!.!` tags(2);
+sql_error create table 'tb1' using `dbesc`.`!.!.!` tags(2);
+
+sql create table 'tb2' using `!.!.!` tags(2);
+sql create table 'tb3' using 'dbesc'.`!.!.!` tags(3);
+sql create table 'tb4' using "dbesc".`!.!.!` tags(3);
+
+sql insert into 'tb5' using 'st1' tags (3) values ('2021-09-22 10:10:11', 1);
+sql insert into dbesc.'tb6' using dbesc.'st1' tags (3) values ('2021-09-22 10:10:12', 2);
+
+sql insert into `.....` using `!.!.!` tags (3) values ('2021-09-22 10:10:13', 3);
+sql insert into dbesc.`.....,` using dbesc.`!.!.!` tags (4) values ('2021-09-22 10:10:13', 4);
+sql insert into "dbesc".`.....,,` using 'dbesc'.`!.!.!` tags (5) values ('2021-09-22 10:10:14', 5);
+
+sql_error insert into `dbesc`.`.....,,,` using 'dbesc'.`!.!.!` tags (6) values ('2021-09-22 10:10:15', 6);
+sql_error insert into dbesc.`.....,,,` using `dbesc`.`!.!.!` tags (7) values ('2021-09-22 10:10:16', 7);
+
+sql insert into dbesc.`.....,,,1` using "dbesc".`!.!.!` tags (8) values ('2021-09-22 10:10:17', 8);
+
+sql select * from `.....`;
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-09-22 10:10:13.000@ then
+  return -1
+endi
+
+sql select `.....`.* from `.....`;
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-09-22 10:10:13.000@ then
+  return -1
+endi
+
+sql select `.....`.*, `.....,`.* from `.....`,`.....,` where `.....`.ts=`.....,`.ts;
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-09-22 10:10:13.000@ then
+  return -1
+endi
+
+sql select a.*, b.* from `.....` a,`.....,` b where a.ts=b.ts;
+if $rows != 1 then
+  return -1
+endi
+if $data00 != @21-09-22 10:10:13.000@ then
+  return -1
+endi
+
+sql select * from `!.!.!` where tbname = `.....`;
+
+sql SHOW CREATE TABLE `.....`;
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT