diff --git a/vendor/github.com/pingcap/parser/ast/expressions.go b/vendor/github.com/pingcap/parser/ast/expressions.go
index 74bbcf64bd4af41cab7c5e9242f4a63a77c9f35d..b1ea841051cbd9a817e2a4051c8d790879874668 100755
--- a/vendor/github.com/pingcap/parser/ast/expressions.go
+++ b/vendor/github.com/pingcap/parser/ast/expressions.go
@@ -588,7 +588,15 @@ type ExistsSubqueryExpr struct {
 
 // Restore implements Node interface.
 func (n *ExistsSubqueryExpr) Restore(ctx *RestoreCtx) error {
-	return errors.New("Not implemented")
+	if n.Not {
+		ctx.WriteKeyWord("NOT EXISTS ")
+	} else {
+		ctx.WriteKeyWord("EXISTS ")
+	}
+	if err := n.Sel.Restore(ctx); err != nil {
+		return errors.Annotate(err, "An error occurred while restore ExistsSubqueryExpr.Sel")
+	}
+	return nil
 }
 
 // Format the ExprNode into a Writer.
diff --git a/vendor/github.com/pingcap/parser/circle.yml b/vendor/github.com/pingcap/parser/circle.yml
index 9128713cf773c699eef7bf82cb053dd67e6f2e9c..7ead9517aa9caf017f774f9a8be9fa3128b0ae58 100644
--- a/vendor/github.com/pingcap/parser/circle.yml
+++ b/vendor/github.com/pingcap/parser/circle.yml
@@ -26,5 +26,5 @@ jobs:
             git clone git@github.com:pingcap/tidb.git
             cd tidb
             rm go.sum
-            GO111MODULE=on go mod edit -replace github.com/pingcap/parser=github.com/${CIRCLE_PR_USERNAME:-$CIRCLE_PROJECT_USERNAME}/${CIRCLE_PR_REPONAME:-$CIRCLE_PROJECT_REPONAME}@$CIRCLE_BRANCH
+            GO111MODULE=on go mod edit -replace github.com/pingcap/parser=github.com/${CIRCLE_PR_USERNAME:-$CIRCLE_PROJECT_USERNAME}/${CIRCLE_PR_REPONAME:-$CIRCLE_PROJECT_REPONAME}@$CIRCLE_SHA1
             make test
diff --git a/vendor/github.com/pingcap/parser/mysql/errcode.go b/vendor/github.com/pingcap/parser/mysql/errcode.go
index 176c1ee667076704d32abd5c3a0bf21cfbe38c08..1535e351a2722effb8ef4b780595c807b053ce36 100644
--- a/vendor/github.com/pingcap/parser/mysql/errcode.go
+++ b/vendor/github.com/pingcap/parser/mysql/errcode.go
@@ -901,7 +901,7 @@ const (
 	ErrWindowFrameEndIllegal                                        = 3585
 	ErrWindowFrameIllegal                                           = 3586
 	ErrWindowRangeFrameOrderType                                    = 3587
-	ErrWindowRangeFrameTEMPORALType                                 = 3588
+	ErrWindowRangeFrameTemporalType                                 = 3588
 	ErrWindowRangeFrameNumericType                                  = 3589
 	ErrWindowRangeBoundNotConstant                                  = 3590
 	ErrWindowDuplicateName                                          = 3591
diff --git a/vendor/github.com/pingcap/parser/mysql/errname.go b/vendor/github.com/pingcap/parser/mysql/errname.go
index 3ce95c0c09f785ef72e10edaf55cf7207f1367c2..c772bafd9b0e70c036db20fbd7d303bfe2ee6e04 100644
--- a/vendor/github.com/pingcap/parser/mysql/errname.go
+++ b/vendor/github.com/pingcap/parser/mysql/errname.go
@@ -250,7 +250,7 @@ var MySQLErrName = map[uint16]string{
 	ErrWrongTypeForVar:                          "Incorrect argument type to variable '%-.64s'",
 	ErrVarCantBeRead:                            "Variable '%-.64s' can only be set, not read",
 	ErrCantUseOptionHere:                        "Incorrect usage/placement of '%s'",
-	ErrNotSupportedYet:                          "This version of MySQL doesn't yet support '%s'",
+	ErrNotSupportedYet:                          "This version of TiDB doesn't yet support '%s'",
 	ErrMasterFatalErrorReadingBinlog:            "Got fatal error %d from master when reading data from binary log: '%-.320s'",
 	ErrSlaveIgnoredTable:                        "Slave SQL thread ignored the query because of replicate-*-table rules",
 	ErrIncorrectGlobalLocalVar:                  "Variable '%-.192s' is a %s variable",
@@ -898,7 +898,7 @@ var MySQLErrName = map[uint16]string{
 	ErrWindowFrameEndIllegal:                                 "Window '%s': frame end cannot be UNBOUNDED PRECEDING.",
 	ErrWindowFrameIllegal:                                    "Window '%s': frame start or end is negative, NULL or of non-integral type",
 	ErrWindowRangeFrameOrderType:                             "Window '%s' with RANGE N PRECEDING/FOLLOWING frame requires exactly one ORDER BY expression, of numeric or temporal type",
-	ErrWindowRangeFrameTEMPORALType:                          "Window '%s' with RANGE frame has ORDER BY expression of datetime type. Only INTERVAL bound value allowed.",
+	ErrWindowRangeFrameTemporalType:                          "Window '%s' with RANGE frame has ORDER BY expression of datetime type. Only INTERVAL bound value allowed.",
 	ErrWindowRangeFrameNumericType:                           "Window '%s' with RANGE frame has ORDER BY expression of numeric type, INTERVAL bound value not allowed.",
 	ErrWindowRangeBoundNotConstant:                           "Window '%s' has a non-constant frame bound.",
 	ErrWindowDuplicateName:                                   "Window '%s' is defined twice.",
diff --git a/vendor/github.com/pingcap/parser/parser.go b/vendor/github.com/pingcap/parser/parser.go
index dc1ec4d97262422f9e061af975653a447b7d2de2..7db9d0b2bff26580996dd356f6a7482ec57c6ffe 100644
--- a/vendor/github.com/pingcap/parser/parser.go
+++ b/vendor/github.com/pingcap/parser/parser.go
@@ -10131,7 +10131,7 @@ yynewstate:
 		}
 	case 888:
 		{
-			parser.yyVAL.item = ast.FrameBound{Type: ast.Preceding, Expr: ast.NewValueExpr(yyS[yypt-2].expr), Unit: ast.NewValueExpr(yyS[yypt-1].ident)}
+			parser.yyVAL.item = ast.FrameBound{Type: ast.Preceding, Expr: yyS[yypt-2].expr, Unit: ast.NewValueExpr(yyS[yypt-1].ident)}
 		}
 	case 889:
 		{
@@ -10159,7 +10159,7 @@ yynewstate:
 		}
 	case 895:
 		{
-			parser.yyVAL.item = ast.FrameBound{Type: ast.Following, Expr: ast.NewValueExpr(yyS[yypt-2].expr), Unit: ast.NewValueExpr(yyS[yypt-1].ident)}
+			parser.yyVAL.item = ast.FrameBound{Type: ast.Following, Expr: yyS[yypt-2].expr, Unit: ast.NewValueExpr(yyS[yypt-1].ident)}
 		}
 	case 896:
 		{
diff --git a/vendor/github.com/pingcap/parser/parser.y b/vendor/github.com/pingcap/parser/parser.y
index 93939422f46cd1738384b503e961924fcd8adda2..be5babd1abc8b56de8a93df100ed4cc26ca631a9 100644
--- a/vendor/github.com/pingcap/parser/parser.y
+++ b/vendor/github.com/pingcap/parser/parser.y
@@ -4724,7 +4724,7 @@ WindowFrameStart:
 	}
 |	"INTERVAL" Expression TimeUnit "PRECEDING"
 	{
-		$$ = ast.FrameBound{Type: ast.Preceding, Expr: ast.NewValueExpr($2), Unit: ast.NewValueExpr($3),}
+		$$ = ast.FrameBound{Type: ast.Preceding, Expr: $2, Unit: ast.NewValueExpr($3),}
 	}
 |	"CURRENT" "ROW"
 	{
@@ -4756,7 +4756,7 @@ WindowFrameBound:
 	}
 |	"INTERVAL" Expression TimeUnit "FOLLOWING"
 	{
-		$$ = ast.FrameBound{Type: ast.Following, Expr: ast.NewValueExpr($2), Unit: ast.NewValueExpr($3),}
+		$$ = ast.FrameBound{Type: ast.Following, Expr: $2, Unit: ast.NewValueExpr($3),}
 	}
 
 OptWindowingClause:
diff --git a/vendor/vendor.json b/vendor/vendor.json
index b158a588a7743447b7be9c20e2b6f2364301dc3d..96c80a483f963f3ddd31c3e16a78b5679b2ff352 100644
--- a/vendor/vendor.json
+++ b/vendor/vendor.json
@@ -111,106 +111,106 @@
 			"revisionTime": "2018-10-24T15:10:47Z"
 		},
 		{
-			"checksumSHA1": "cOEqkxoki8WzzrAKFDP1GvSufH4=",
+			"checksumSHA1": "NgMgQFss1kjQUJOhcK/zXD8q8x8=",
 			"path": "github.com/pingcap/parser",
-			"revision": "0321c0fc2a7b5bf3d019ac753e70b808961d4194",
-			"revisionTime": "2019-01-16T08:50:57Z"
+			"revision": "c02a7ccd3d6bbed56fdd3a6be6f141cb2a32bbc4",
+			"revisionTime": "2019-01-17T10:47:31Z"
 		},
 		{
-			"checksumSHA1": "jTB3MZ/p6/PeJDX5P0tw7C97J2I=",
+			"checksumSHA1": "byPUPTMBKNbYNrDqojD61S3642s=",
 			"path": "github.com/pingcap/parser/ast",
-			"revision": "0321c0fc2a7b5bf3d019ac753e70b808961d4194",
-			"revisionTime": "2019-01-16T08:50:57Z"
+			"revision": "c02a7ccd3d6bbed56fdd3a6be6f141cb2a32bbc4",
+			"revisionTime": "2019-01-17T10:47:31Z"
 		},
 		{
 			"checksumSHA1": "skWGV4FNvD3vr+5olepaPPnylUw=",
 			"path": "github.com/pingcap/parser/auth",
-			"revision": "0321c0fc2a7b5bf3d019ac753e70b808961d4194",
-			"revisionTime": "2019-01-16T08:50:57Z"
+			"revision": "c02a7ccd3d6bbed56fdd3a6be6f141cb2a32bbc4",
+			"revisionTime": "2019-01-17T10:47:31Z"
 		},
 		{
 			"checksumSHA1": "t4UHo966WzU9Z0IJkyGHRp0loOk=",
 			"path": "github.com/pingcap/parser/charset",
-			"revision": "0321c0fc2a7b5bf3d019ac753e70b808961d4194",
-			"revisionTime": "2019-01-16T08:50:57Z"
+			"revision": "c02a7ccd3d6bbed56fdd3a6be6f141cb2a32bbc4",
+			"revisionTime": "2019-01-17T10:47:31Z"
 		},
 		{
 			"checksumSHA1": "ohLJW2u9NJEzYIJL/AjOqcuKfMY=",
 			"path": "github.com/pingcap/parser/format",
-			"revision": "0321c0fc2a7b5bf3d019ac753e70b808961d4194",
-			"revisionTime": "2019-01-16T08:50:57Z"
+			"revision": "c02a7ccd3d6bbed56fdd3a6be6f141cb2a32bbc4",
+			"revisionTime": "2019-01-17T10:47:31Z"
 		},
 		{
 			"checksumSHA1": "ZADwr2/PcEd9VI3XF9OvN4HkJ+8=",
 			"path": "github.com/pingcap/parser/model",
-			"revision": "0321c0fc2a7b5bf3d019ac753e70b808961d4194",
-			"revisionTime": "2019-01-16T08:50:57Z"
+			"revision": "c02a7ccd3d6bbed56fdd3a6be6f141cb2a32bbc4",
+			"revisionTime": "2019-01-17T10:47:31Z"
 		},
 		{
-			"checksumSHA1": "poSWMsB1ZV4Pi33qMq7Wb1mLmZ0=",
+			"checksumSHA1": "0YvCqsNHKFZEA7vfi3Fq+eYkjW4=",
 			"path": "github.com/pingcap/parser/mysql",
-			"revision": "0321c0fc2a7b5bf3d019ac753e70b808961d4194",
-			"revisionTime": "2019-01-16T08:50:57Z"
+			"revision": "c02a7ccd3d6bbed56fdd3a6be6f141cb2a32bbc4",
+			"revisionTime": "2019-01-17T10:47:31Z"
 		},
 		{
 			"checksumSHA1": "olapD16WCMBU9vrA5PtlERGFfXw=",
 			"path": "github.com/pingcap/parser/opcode",
-			"revision": "0321c0fc2a7b5bf3d019ac753e70b808961d4194",
-			"revisionTime": "2019-01-16T08:50:57Z"
+			"revision": "c02a7ccd3d6bbed56fdd3a6be6f141cb2a32bbc4",
+			"revisionTime": "2019-01-17T10:47:31Z"
 		},
 		{
 			"checksumSHA1": "TF2rMYy9ewgZpFsJb+jaGXXqZqc=",
 			"path": "github.com/pingcap/parser/terror",
-			"revision": "0321c0fc2a7b5bf3d019ac753e70b808961d4194",
-			"revisionTime": "2019-01-16T08:50:57Z"
+			"revision": "c02a7ccd3d6bbed56fdd3a6be6f141cb2a32bbc4",
+			"revisionTime": "2019-01-17T10:47:31Z"
 		},
 		{
 			"checksumSHA1": "sCYsaxxXBau10NOc5tuYQEtmAu0=",
 			"path": "github.com/pingcap/parser/types",
-			"revision": "0321c0fc2a7b5bf3d019ac753e70b808961d4194",
-			"revisionTime": "2019-01-16T08:50:57Z"
+			"revision": "c02a7ccd3d6bbed56fdd3a6be6f141cb2a32bbc4",
+			"revisionTime": "2019-01-17T10:47:31Z"
 		},
 		{
 			"checksumSHA1": "uOrWw9c47zwN6COxonFJ0t2IMcM=",
 			"path": "github.com/pingcap/tidb/sessionctx/stmtctx",
-			"revision": "47ea05d01781be5f1e751a68d4b5576f0fc0783d",
-			"revisionTime": "2019-01-16T10:02:55Z"
+			"revision": "5f8265a8f9bebc6d61c18d1e7c0aabb493ef2c41",
+			"revisionTime": "2019-01-17T12:13:24Z"
 		},
 		{
 			"checksumSHA1": "SxNV0h7Hb44wjJFvFmQ8daMSHyI=",
 			"path": "github.com/pingcap/tidb/types",
-			"revision": "47ea05d01781be5f1e751a68d4b5576f0fc0783d",
-			"revisionTime": "2019-01-16T10:02:55Z"
+			"revision": "5f8265a8f9bebc6d61c18d1e7c0aabb493ef2c41",
+			"revisionTime": "2019-01-17T12:13:24Z"
 		},
 		{
 			"checksumSHA1": "7PiTQPW4ftgZIg8KBGCHZjdc0hE=",
 			"path": "github.com/pingcap/tidb/types/json",
-			"revision": "47ea05d01781be5f1e751a68d4b5576f0fc0783d",
-			"revisionTime": "2019-01-16T10:02:55Z"
+			"revision": "5f8265a8f9bebc6d61c18d1e7c0aabb493ef2c41",
+			"revisionTime": "2019-01-17T12:13:24Z"
 		},
 		{
 			"checksumSHA1": "yKeU1hJFc7X3afXESYV0Wz5ZPXQ=",
 			"path": "github.com/pingcap/tidb/types/parser_driver",
-			"revision": "47ea05d01781be5f1e751a68d4b5576f0fc0783d",
-			"revisionTime": "2019-01-16T10:02:55Z"
+			"revision": "5f8265a8f9bebc6d61c18d1e7c0aabb493ef2c41",
+			"revisionTime": "2019-01-17T12:13:24Z"
 		},
 		{
 			"checksumSHA1": "OOig47D9TSVOUAYkNj2yJok1Hmo=",
 			"path": "github.com/pingcap/tidb/util/execdetails",
-			"revision": "47ea05d01781be5f1e751a68d4b5576f0fc0783d",
-			"revisionTime": "2019-01-16T10:02:55Z"
+			"revision": "5f8265a8f9bebc6d61c18d1e7c0aabb493ef2c41",
+			"revisionTime": "2019-01-17T12:13:24Z"
 		},
 		{
 			"checksumSHA1": "nUC7zVoAMNR2a+z2iGqHoN2AkFE=",
 			"path": "github.com/pingcap/tidb/util/hack",
-			"revision": "47ea05d01781be5f1e751a68d4b5576f0fc0783d",
-			"revisionTime": "2019-01-16T10:02:55Z"
+			"revision": "5f8265a8f9bebc6d61c18d1e7c0aabb493ef2c41",
+			"revisionTime": "2019-01-17T12:13:24Z"
 		},
 		{
 			"checksumSHA1": "xSyepiuqsoaaeDch7cXeumvVHKM=",
 			"path": "github.com/pingcap/tidb/util/memory",
-			"revision": "47ea05d01781be5f1e751a68d4b5576f0fc0783d",
-			"revisionTime": "2019-01-16T10:02:55Z"
+			"revision": "5f8265a8f9bebc6d61c18d1e7c0aabb493ef2c41",
+			"revisionTime": "2019-01-17T12:13:24Z"
 		},
 		{
 			"checksumSHA1": "SmYeIK/fIYXNu8IKxD6HOVQVTuU=",
@@ -407,62 +407,62 @@
 		{
 			"checksumSHA1": "aKn1oKcY74N8TRLm3Ayt7Q4bbI4=",
 			"path": "vitess.io/vitess/go/bytes2",
-			"revision": "360d5cdb70a8fe85321a6ddde39a632883b7b4e3",
-			"revisionTime": "2019-01-16T07:27:56Z"
+			"revision": "19480ef5cc643591c67ff766755a4634a32be763",
+			"revisionTime": "2019-01-17T03:25:54Z"
 		},
 		{
 			"checksumSHA1": "JVCEN4UGRmg3TofIBdzZMZ3G0Ww=",
 			"path": "vitess.io/vitess/go/hack",
-			"revision": "360d5cdb70a8fe85321a6ddde39a632883b7b4e3",
-			"revisionTime": "2019-01-16T07:27:56Z"
+			"revision": "19480ef5cc643591c67ff766755a4634a32be763",
+			"revisionTime": "2019-01-17T03:25:54Z"
 		},
 		{
 			"checksumSHA1": "F5pcGq+2W1FHEjgktTdKOE6W8mk=",
 			"path": "vitess.io/vitess/go/sqltypes",
-			"revision": "360d5cdb70a8fe85321a6ddde39a632883b7b4e3",
-			"revisionTime": "2019-01-16T07:27:56Z"
+			"revision": "19480ef5cc643591c67ff766755a4634a32be763",
+			"revisionTime": "2019-01-17T03:25:54Z"
 		},
 		{
 			"checksumSHA1": "vAIRxI6MHsq3x1hLQwIyw5AvqtI=",
 			"path": "vitess.io/vitess/go/vt/log",
-			"revision": "360d5cdb70a8fe85321a6ddde39a632883b7b4e3",
-			"revisionTime": "2019-01-16T07:27:56Z"
+			"revision": "19480ef5cc643591c67ff766755a4634a32be763",
+			"revisionTime": "2019-01-17T03:25:54Z"
 		},
 		{
 			"checksumSHA1": "HHIcl3lpWkzLARkkNv94fVaObjo=",
 			"path": "vitess.io/vitess/go/vt/proto/query",
-			"revision": "360d5cdb70a8fe85321a6ddde39a632883b7b4e3",
-			"revisionTime": "2019-01-16T07:27:56Z"
+			"revision": "19480ef5cc643591c67ff766755a4634a32be763",
+			"revisionTime": "2019-01-17T03:25:54Z"
 		},
 		{
 			"checksumSHA1": "YLWTmL+rvz0htn0niRMrIUI6rKc=",
 			"path": "vitess.io/vitess/go/vt/proto/topodata",
-			"revision": "360d5cdb70a8fe85321a6ddde39a632883b7b4e3",
-			"revisionTime": "2019-01-16T07:27:56Z"
+			"revision": "19480ef5cc643591c67ff766755a4634a32be763",
+			"revisionTime": "2019-01-17T03:25:54Z"
 		},
 		{
 			"checksumSHA1": "tNNlcSFFnlOauS2hXnrz/zA/wfk=",
 			"path": "vitess.io/vitess/go/vt/proto/vtgate",
-			"revision": "360d5cdb70a8fe85321a6ddde39a632883b7b4e3",
-			"revisionTime": "2019-01-16T07:27:56Z"
+			"revision": "19480ef5cc643591c67ff766755a4634a32be763",
+			"revisionTime": "2019-01-17T03:25:54Z"
 		},
 		{
 			"checksumSHA1": "qz32abYdmm9NfKTc++K0l1EvXXM=",
 			"path": "vitess.io/vitess/go/vt/proto/vtrpc",
-			"revision": "360d5cdb70a8fe85321a6ddde39a632883b7b4e3",
-			"revisionTime": "2019-01-16T07:27:56Z"
+			"revision": "19480ef5cc643591c67ff766755a4634a32be763",
+			"revisionTime": "2019-01-17T03:25:54Z"
 		},
 		{
 			"checksumSHA1": "3yiiEdMrUONYMNI84Bs/KONvW94=",
 			"path": "vitess.io/vitess/go/vt/sqlparser",
-			"revision": "360d5cdb70a8fe85321a6ddde39a632883b7b4e3",
-			"revisionTime": "2019-01-16T07:27:56Z"
+			"revision": "19480ef5cc643591c67ff766755a4634a32be763",
+			"revisionTime": "2019-01-17T03:25:54Z"
 		},
 		{
 			"checksumSHA1": "Jx+gOh/kiBDSZxEIWHyYn9brjdo=",
 			"path": "vitess.io/vitess/go/vt/vterrors",
-			"revision": "360d5cdb70a8fe85321a6ddde39a632883b7b4e3",
-			"revisionTime": "2019-01-16T07:27:56Z"
+			"revision": "19480ef5cc643591c67ff766755a4634a32be763",
+			"revisionTime": "2019-01-17T03:25:54Z"
 		}
 	],
 	"rootPath": "github.com/XiaoMi/soar"