Merge pull request #355 from github/unsigned-int

localtests and fix for unsigned medium int problem

Author: Shlomi Noach

RELEASE_VERSION

@@ -1 +1 @@
-1.0.34
+1.0.35

go/logic/inspect.go

@@ -529,6 +529,11 @@ func (this *Inspector) applyColumnTypes(databaseName, tableName string, columnsL
 				columnsList.SetUnsigned(columnName)
 			}
 		}
+		if strings.Contains(columnType, "mediumint") {
+			for _, columnsList := range columnsLists {
+				columnsList.GetColumn(columnName).Type = sql.MediumIntColumnType
+			}
+		}
 		if strings.Contains(columnType, "timestamp") {
 			for _, columnsList := range columnsLists {
 				columnsList.GetColumn(columnName).Type = sql.TimestampColumnType
@@ -541,7 +546,7 @@ func (this *Inspector) applyColumnTypes(databaseName, tableName string, columnsL
 		}
 		if strings.HasPrefix(columnType, "enum") {
 			for _, columnsList := range columnsLists {
-				columnsList.GetColumn(columnName).Type = sql.EnumColumnValue
+				columnsList.GetColumn(columnName).Type = sql.EnumColumnType
 			}
 		}
 		if charset := m.GetString("CHARACTER_SET_NAME"); charset != "" {

go/sql/builder.go

@@ -258,7 +258,7 @@ func BuildUniqueKeyRangeEndPreparedQuery(databaseName, tableName string, uniqueK
 	uniqueKeyColumnDescending := make([]string, len(uniqueKeyColumnNames), len(uniqueKeyColumnNames))
 	for i, column := range uniqueKeyColumns.Columns() {
 		uniqueKeyColumnNames[i] = EscapeName(uniqueKeyColumnNames[i])
-		if column.Type == EnumColumnValue {
+		if column.Type == EnumColumnType {
 			uniqueKeyColumnAscending[i] = fmt.Sprintf("concat(%s) asc", uniqueKeyColumnNames[i])
 			uniqueKeyColumnDescending[i] = fmt.Sprintf("concat(%s) desc", uniqueKeyColumnNames[i])
 		} else {
@@ -309,7 +309,7 @@ func buildUniqueKeyMinMaxValuesPreparedQuery(databaseName, tableName string, uni
 	uniqueKeyColumnOrder := make([]string, len(uniqueKeyColumnNames), len(uniqueKeyColumnNames))
 	for i, column := range uniqueKeyColumns.Columns() {
 		uniqueKeyColumnNames[i] = EscapeName(uniqueKeyColumnNames[i])
-		if column.Type == EnumColumnValue {
+		if column.Type == EnumColumnType {
 			uniqueKeyColumnOrder[i] = fmt.Sprintf("concat(%s) %s", uniqueKeyColumnNames[i], order)
 		} else {
 			uniqueKeyColumnOrder[i] = fmt.Sprintf("%s %s", uniqueKeyColumnNames[i], order)

go/sql/types.go

@@ -18,9 +18,12 @@ const (
 	UnknownColumnType   ColumnType = iota
 	TimestampColumnType            = iota
 	DateTimeColumnType             = iota
-	EnumColumnValue                = iota
+	EnumColumnType                 = iota
+	MediumIntColumnType            = iota
 )
 
+const maxMediumintUnsigned int32 = 16777215
+
 type TimezoneConvertion struct {
 	ToTimezone string
 }
@@ -50,6 +53,14 @@ func (this *Column) convertArg(arg interface{}) interface{} {
 			return uint16(i)
 		}
 		if i, ok := arg.(int32); ok {
+			if this.Type == MediumIntColumnType {
+				// problem with mediumint is that it's a 3-byte type. There is no compatible golang type to match that.
+				// So to convert from negative to positive we'd need to convert the value manually
+				if i >= 0 {
+					return i
+				}
+				return uint32(maxMediumintUnsigned + i + 1)
+			}
 			return uint32(i)
 		}
 		if i, ok := arg.(int64); ok {

localtests/unsigned-modify/create.sql

@@ -0,0 +1,28 @@
+drop table if exists gh_ost_test;
+create table gh_ost_test (
+  id bigint(20) NOT NULL AUTO_INCREMENT,
+  column1 int(11) NOT NULL,
+  column2 smallint(5) unsigned NOT NULL,
+  column3 mediumint(8) unsigned NOT NULL,
+  column4 tinyint(3) unsigned NOT NULL,
+  column5 int(11) NOT NULL,
+  column6 int(11) NOT NULL,
+  PRIMARY KEY (id),
+  KEY c12_ix (column1, column2)
+) auto_increment=1;
+
+drop event if exists gh_ost_test;
+delimiter ;;
+create event gh_ost_test
+  on schedule every 1 second
+  starts current_timestamp
+  ends current_timestamp + interval 60 second
+  on completion not preserve
+  enable
+  do
+begin
+  -- mediumint maxvalue: 16777215 (unsigned), 8388607 (signed)
+  insert into gh_ost_test values (NULL, 13382498, 536,  8388607, 3, 1483892217, 1483892218);
+  insert into gh_ost_test values (NULL, 13382498, 536,  8388607, 250, 1483892217, 1483892218);
+  insert into gh_ost_test values (NULL, 13382498, 536, 10000000, 3, 1483892217, 1483892218);
+end ;;