From a84bf5bf3548f32ae4dbc6ae51ab1f88971cf341 Mon Sep 17 00:00:00 2001
From: Haibin Xie <lambdax.tyler@gmail.com>
Date: Wed, 25 Oct 2017 16:51:26 +0800
Subject: [PATCH] executor: use max uint64 as analyze's start timestamp (#4892)

---
 executor/builder.go | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/executor/builder.go b/executor/builder.go
index a35cf158bdda0..710b52ba35a2b 100644
--- a/executor/builder.go
+++ b/executor/builder.go
@@ -904,10 +904,7 @@ func (b *executorBuilder) buildCache(v *plan.Cache) Executor {
 }
 
 func (b *executorBuilder) buildTableScanForAnalyze(tblInfo *model.TableInfo, pk *model.ColumnInfo, cols []*model.ColumnInfo) Executor {
-	startTS := b.getStartTS()
-	if b.err != nil {
-		return nil
-	}
+	startTS := uint64(math.MaxUint64)
 	table, _ := b.is.TableByID(tblInfo.ID)
 	keepOrder := false
 	if pk != nil {
@@ -959,10 +956,7 @@ func (b *executorBuilder) buildTableScanForAnalyze(tblInfo *model.TableInfo, pk
 }
 
 func (b *executorBuilder) buildIndexScanForAnalyze(tblInfo *model.TableInfo, idxInfo *model.IndexInfo) Executor {
-	startTS := b.getStartTS()
-	if b.err != nil {
-		return nil
-	}
+	startTS := uint64(math.MaxUint64)
 	table, _ := b.is.TableByID(tblInfo.ID)
 	cols := make([]*model.ColumnInfo, len(idxInfo.Columns))
 	for i, col := range idxInfo.Columns {
@@ -1021,10 +1015,6 @@ func (b *executorBuilder) buildIndexScanForAnalyze(tblInfo *model.TableInfo, idx
 }
 
 func (b *executorBuilder) buildAnalyzeIndexPushdown(task plan.AnalyzeIndexTask) *AnalyzeIndexExec {
-	startTS := b.getStartTS()
-	if b.err != nil {
-		return nil
-	}
 	e := &AnalyzeIndexExec{
 		ctx:         b.ctx,
 		tblInfo:     task.TableInfo,
@@ -1033,7 +1023,7 @@ func (b *executorBuilder) buildAnalyzeIndexPushdown(task plan.AnalyzeIndexTask)
 		priority:    b.priority,
 		analyzePB: &tipb.AnalyzeReq{
 			Tp:             tipb.AnalyzeType_TypeIndex,
-			StartTs:        startTS,
+			StartTs:        math.MaxUint64,
 			Flags:          statementContextToFlags(b.ctx.GetSessionVars().StmtCtx),
 			TimeZoneOffset: timeZoneOffset(b.ctx),
 		},
@@ -1062,7 +1052,7 @@ func (b *executorBuilder) buildAnalyzeColumnsPushdown(task plan.AnalyzeColumnsTa
 		keepOrder:   keepOrder,
 		analyzePB: &tipb.AnalyzeReq{
 			Tp:             tipb.AnalyzeType_TypeColumn,
-			StartTs:        b.getStartTS(),
+			StartTs:        math.MaxUint64,
 			Flags:          statementContextToFlags(b.ctx.GetSessionVars().StmtCtx),
 			TimeZoneOffset: timeZoneOffset(b.ctx),
 		},