*: add "show open tables" support (pingcap#291)

lyonzhi · Apr 17, 2019 · 1c191a2 · 1c191a2
1 parent de4274a
commit 1c191a2
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Showing 4 changed files with 5,921 additions and 5,891 deletions.
diff --git a/ast/dml.go b/ast/dml.go
@@ -1768,6 +1768,7 @@ const (
 	ShowBindings
 	ShowPumpStatus
 	ShowDrainerStatus
+	ShowOpenTables
 )
 
 // ShowStmt is a statement to provide information about databases, tables, columns and so on.
@@ -1912,6 +1913,9 @@ func (n *ShowStmt) Restore(ctx *RestoreCtx) error {
 			restoreOptFull()
 			ctx.WriteKeyWord("TABLES")
 			restoreShowDatabaseNameOpt()
+		case ShowOpenTables:
+			ctx.WriteKeyWord("OPEN TABLES")
+			restoreShowDatabaseNameOpt()
 		case ShowTableStatus:
 			ctx.WriteKeyWord("TABLE STATUS")
 			restoreShowDatabaseNameOpt()

diff --git a/misc.go b/misc.go
@@ -469,6 +469,7 @@ var tokenMap = map[string]int{
 	"STATS_META":               statsMeta,
 	"STATS_PERSISTENT":         statsPersistent,
 	"STATUS":                   status,
+	"OPEN":                     open,
 	"STD":                      stddevPop,
 	"STDDEV":                   stddevPop,
 	"STDDEV_POP":               stddevPop,