parser: quote identifier with backquote when getting SQL digest

executor/executor_test.go

@@ -5238,7 +5238,7 @@ func (s *testSuite) TestSummaryFailedUpdate(c *C) {
 	c.Assert(err, NotNil)
 	c.Assert(err.Error(), Matches, "Out Of Memory Quota!.*")
 	tk.MustExec("set @@tidb_mem_quota_query=1000000000")
-	tk.MustQuery("select stmt_type from information_schema.statements_summary where digest_text = 'update t set t . a = t . a - ? where t . a in ( select a from t where a < ? )'").Check(testkit.Rows("Update"))
+	tk.MustQuery("select stmt_type from information_schema.statements_summary where digest_text = 'update `t` set `t` . `a` = `t` . `a` - ? where `t` . `a` in ( select `a` from `t` where `a` < ? )'").Check(testkit.Rows("Update"))
 }
 
 func (s *testSuite) TestOOMPanicAction(c *C) {
@@ -6731,7 +6731,7 @@ func (s *testSerialSuite) TestPrevStmtDesensitization(c *C) {
 	tk.MustExec("create table t (a int, unique key (a))")
 	tk.MustExec("begin")
 	tk.MustExec("insert into t values (1),(2)")
-	c.Assert(tk.Se.GetSessionVars().PrevStmt.String(), Equals, "insert into t values ( ? ) , ( ? )")
+	c.Assert(tk.Se.GetSessionVars().PrevStmt.String(), Equals, "insert into `t` values ( ? ) , ( ? )")
 	c.Assert(tk.ExecToErr("insert into t values (1)").Error(), Equals, `[kv:1062]Duplicate entry '?' for key 'a'`)
 }
 

executor/prepared_test.go

@@ -121,7 +121,7 @@ func (s *testSerialSuite) TestPrepareStmtAfterIsolationReadChange(c *C) {
 	c.Assert(rows[len(rows)-1][2], Equals, "cop[tiflash]")
 
 	c.Assert(len(tk.Se.GetSessionVars().PreparedStmts), Equals, 1)
-	c.Assert(tk.Se.GetSessionVars().PreparedStmts[1].(*plannercore.CachedPrepareStmt).NormalizedSQL, Equals, "select * from t")
+	c.Assert(tk.Se.GetSessionVars().PreparedStmts[1].(*plannercore.CachedPrepareStmt).NormalizedSQL, Equals, "select * from `t`")
 	c.Assert(tk.Se.GetSessionVars().PreparedStmts[1].(*plannercore.CachedPrepareStmt).NormalizedPlan, Equals, "")
 }
 

go.mod

@@ -46,7 +46,7 @@ require (
 	github.com/pingcap/goleveldb v0.0.0-20191226122134-f82aafb29989
 	github.com/pingcap/kvproto v0.0.0-20210204054616-1c1ed89bb167
 	github.com/pingcap/log v0.0.0-20201112100606-8f1e84a3abc8
-	github.com/pingcap/parser v0.0.0-20210203141130-32ef3e0e2e13
+	github.com/pingcap/parser v0.0.0-20210224050355-ce3c7711a45f
 	github.com/pingcap/sysutil v0.0.0-20201130064824-f0c8aa6a6966
 	github.com/pingcap/tidb-tools v4.0.9-0.20201127090955-2707c97b3853+incompatible
 	github.com/pingcap/tipb v0.0.0-20210204051656-2870a0852037

go.sum

@@ -412,8 +412,8 @@ github.com/pingcap/log v0.0.0-20200117041106-d28c14d3b1cd/go.mod h1:4rbK1p9ILyIf
 github.com/pingcap/log v0.0.0-20200511115504-543df19646ad/go.mod h1:4rbK1p9ILyIfb6hU7OG2CiWSqMXnp3JMbiaVJ6mvoY8=
 github.com/pingcap/log v0.0.0-20201112100606-8f1e84a3abc8 h1:M+DNpOu/I3uDmwee6vcnoPd6GgSMqND4gxvDQ/W584U=
 github.com/pingcap/log v0.0.0-20201112100606-8f1e84a3abc8/go.mod h1:4rbK1p9ILyIfb6hU7OG2CiWSqMXnp3JMbiaVJ6mvoY8=
-github.com/pingcap/parser v0.0.0-20210203141130-32ef3e0e2e13 h1:hIbRR2siRrJniSRrMU+XgZl3reOWiPZk0P+7PwKXuEQ=
-github.com/pingcap/parser v0.0.0-20210203141130-32ef3e0e2e13/go.mod h1:GbEr2PgY72/4XqPZzmzstlOU/+il/wrjeTNFs6ihsSE=
+github.com/pingcap/parser v0.0.0-20210224050355-ce3c7711a45f h1:pifEcAWoLMCwNcaUuXWyDOjmh1MZKnkffC+WTTmAr6A=
+github.com/pingcap/parser v0.0.0-20210224050355-ce3c7711a45f/go.mod h1:GbEr2PgY72/4XqPZzmzstlOU/+il/wrjeTNFs6ihsSE=
 github.com/pingcap/sysutil v0.0.0-20200206130906-2bfa6dc40bcd/go.mod h1:EB/852NMQ+aRKioCpToQ94Wl7fktV+FNnxf3CX/TTXI=
 github.com/pingcap/sysutil v0.0.0-20201130064824-f0c8aa6a6966 h1:JI0wOAb8aQML0vAVLHcxTEEC0VIwrk6gtw3WjbHvJLA=
 github.com/pingcap/sysutil v0.0.0-20201130064824-f0c8aa6a6966/go.mod h1:EB/852NMQ+aRKioCpToQ94Wl7fktV+FNnxf3CX/TTXI=

planner/core/prepare_test.go

@@ -851,15 +851,15 @@ func (s *testPlanSerialSuite) TestIssue18066(c *C) {
 	tk.MustExec("create table t(a int)")
 	tk.MustExec("prepare stmt from 'select * from t'")
 	tk.MustQuery("execute stmt").Check(testkit.Rows())
-	tk.MustQuery("select EXEC_COUNT,plan_cache_hits, plan_in_cache from information_schema.statements_summary where digest_text='select * from t'").Check(
+	tk.MustQuery("select EXEC_COUNT,plan_cache_hits, plan_in_cache from information_schema.statements_summary where digest_text='select * from `t`'").Check(
 		testkit.Rows("1 0 0"))
 	tk.MustQuery("execute stmt").Check(testkit.Rows())
-	tk.MustQuery("select EXEC_COUNT,plan_cache_hits, plan_in_cache from information_schema.statements_summary where digest_text='select * from t'").Check(
+	tk.MustQuery("select EXEC_COUNT,plan_cache_hits, plan_in_cache from information_schema.statements_summary where digest_text='select * from `t`'").Check(
 		testkit.Rows("2 1 1"))
 	tk.MustExec("prepare stmt from 'select * from t'")
 	tk.MustQuery("execute stmt").Check(testkit.Rows())
 	tk.MustQuery("select @@last_plan_from_cache").Check(testkit.Rows("0"))
-	tk.MustQuery("select EXEC_COUNT,plan_cache_hits, plan_in_cache from information_schema.statements_summary where digest_text='select * from t'").Check(
+	tk.MustQuery("select EXEC_COUNT,plan_cache_hits, plan_in_cache from information_schema.statements_summary where digest_text='select * from `t`'").Check(
 		testkit.Rows("3 1 0"))
 }
 

session/bootstrap_test.go

@@ -521,15 +521,15 @@ func (s *testBootstrapSuite) TestUpdateBindInfo(c *C) {
 			originText:   "select * from t where a > ?",
 			bindText:     "select /*+ use_index(t, idxb) */ * from t where a > 1",
 			db:           "test",
-			originWithDB: "select * from test . t where a > ?",
+			originWithDB: "select * from `test` . `t` where `a` > ?",
 			bindWithDB:   "SELECT /*+ use_index(t idxb)*/ * FROM test.t WHERE a > 1",
 			deleteText:   "select * from test.t where a > 1",
 		},
 		{
 			originText:   "select count ( ? ), max ( a ) from t group by b",
 			bindText:     "select /*+ use_index(t, idx) */ count(1), max(a) from t group by b",
 			db:           "test",
-			originWithDB: "select count ( ? ) , max ( a ) from test . t group by b",
+			originWithDB: "select count ( ? ) , max ( `a` ) from `test` . `t` group by `b`",
 			bindWithDB:   "SELECT /*+ use_index(t idx)*/ count(1),max(a) FROM test.t GROUP BY b",
 			deleteText:   "select count(1), max(a) from test.t group by b",
 		},
@@ -590,7 +590,7 @@ func (s *testBootstrapSuite) TestUpdateDuplicateBindInfo(c *C) {
 	c.Assert(r.Next(ctx, req), IsNil)
 	c.Assert(req.NumRows(), Equals, 1)
 	row := req.GetRow(0)
-	c.Assert(row.GetString(0), Equals, "select * from test . t")
+	c.Assert(row.GetString(0), Equals, "select * from `test` . `t`")
 	c.Assert(row.GetString(1), Equals, "SELECT /*+ use_index(t idx_b)*/ * FROM test.t")
 	c.Assert(row.GetString(2), Equals, "")
 	c.Assert(row.GetString(3), Equals, "using")

sessionctx/variable/session_test.go

@@ -193,7 +193,7 @@ func (*testSessionSuite) TestSlowLogFormat(c *C) {
 # DB: test
 # Index_names: [t1:a,t2:b]
 # Is_internal: true
-# Digest: f94c76d7fa8f60e438118752bfbfb71fe9e1934888ac415ddd8625b121af124c
+# Digest: 01d00e6e93b28184beae487ac05841145d2a2f6a7b16de32a763bed27967e83d
 # Stats: t1:pseudo
 # Num_cop_tasks: 10
 # Cop_proc_avg: 1 Cop_proc_p90: 2 Cop_proc_max: 3 Cop_proc_addr: 10.6.131.78

util/expensivequery/expensivequerey_test.go

@@ -75,5 +75,5 @@ func (s *testSuite) TestLogFormat(c *C) {
 
 	info.RedactSQL = true
 	logFields = genLogFields(costTime, info)
-	c.Assert(logFields[6].String, Equals, "select * from table where a > ?")
+	c.Assert(logFields[6].String, Equals, "select * from table where `a` > ?")
 }