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ddl, executor: limit the length of the index name when executing "create table" #13016

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merged 2 commits into from
Nov 9, 2019
Merged

ddl, executor: limit the length of the index name when executing "create table" #13016

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b0aed0d
ddl, executor: limit the length of index name
zimulala Oct 28, 2019
c457029
Merge branch 'master' into fix-idx-name
sre-bot Nov 9, 2019
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4 changes: 4 additions & 0 deletions ddl/index.go
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Original file line number Diff line number Diff line change
Expand Up @@ -174,6 +174,10 @@ func getIndexColumnLength(col *model.ColumnInfo, colLen int) (int, error) {
}

func buildIndexInfo(tblInfo *model.TableInfo, indexName model.CIStr, idxColNames []*ast.IndexColName, state model.SchemaState) (*model.IndexInfo, error) {
if err := checkTooLongIndex(indexName); err != nil {
return nil, errors.Trace(err)
}

idxColumns, err := buildIndexColumns(tblInfo.Columns, idxColNames)
if err != nil {
return nil, errors.Trace(err)
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5 changes: 5 additions & 0 deletions executor/ddl_test.go
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Expand Up @@ -556,6 +556,11 @@ func (s *testSuite6) TestTooLargeIdentifierLength(c *C) {
tk.MustExec(fmt.Sprintf("drop index %s on t", indexName1))
_, err = tk.Exec(fmt.Sprintf("create index %s on t(c)", indexName2))
c.Assert(err.Error(), Equals, fmt.Sprintf("[ddl:1059]Identifier name '%s' is too long", indexName2))

// for create table with index.
tk.MustExec("drop table t;")
_, err = tk.Exec(fmt.Sprintf("create table t(c int, index %s(c));", indexName2))
c.Assert(err.Error(), Equals, fmt.Sprintf("[ddl:1059]Identifier name '%s' is too long", indexName2))
}

func (s *testSuite8) TestShardRowIDBits(c *C) {
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