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ddl: fix the error message of too long key #15127

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merged 2 commits into from
Mar 4, 2020
Merged

ddl: fix the error message of too long key #15127

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3465743
ddl: fix the error message of too long key
zimulala Mar 4, 2020
b829518
Merge branch 'master' into too-long-key
sre-bot Mar 4, 2020
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24 changes: 11 additions & 13 deletions ddl/ddl.go
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Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,6 @@ import (
"github.com/pingcap/parser/mysql"
"github.com/pingcap/parser/terror"
pumpcli "github.com/pingcap/tidb-tools/tidb-binlog/pump_client"
"github.com/pingcap/tidb/config"
"github.com/pingcap/tidb/ddl/util"
"github.com/pingcap/tidb/infoschema"
"github.com/pingcap/tidb/kv"
Expand Down Expand Up @@ -99,18 +98,17 @@ var (
errBlobKeyWithoutLength = terror.ClassDDL.New(mysql.ErrBlobKeyWithoutLength, mysql.MySQLErrName[mysql.ErrBlobKeyWithoutLength])
errKeyPart0 = terror.ClassDDL.New(mysql.ErrKeyPart0, mysql.MySQLErrName[mysql.ErrKeyPart0])
errIncorrectPrefixKey = terror.ClassDDL.New(mysql.ErrWrongSubKey, mysql.MySQLErrName[mysql.ErrWrongSubKey])
errTooLongKey = terror.ClassDDL.New(mysql.ErrTooLongKey,
fmt.Sprintf(mysql.MySQLErrName[mysql.ErrTooLongKey], config.GetGlobalConfig().MaxIndexLength))
errKeyColumnDoesNotExits = terror.ClassDDL.New(mysql.ErrKeyColumnDoesNotExits, mysql.MySQLErrName[mysql.ErrKeyColumnDoesNotExits])
errUnknownTypeLength = terror.ClassDDL.New(mysql.ErrUnknownTypeLength, mysql.MySQLErrName[mysql.ErrUnknownTypeLength])
errUnknownFractionLength = terror.ClassDDL.New(mysql.ErrUnknownFractionLength, mysql.MySQLErrName[mysql.ErrUnknownFractionLength])
errInvalidDDLJobVersion = terror.ClassDDL.New(mysql.ErrInvalidDDLJobVersion, mysql.MySQLErrName[mysql.ErrInvalidDDLJobVersion])
errInvalidUseOfNull = terror.ClassDDL.New(mysql.ErrInvalidUseOfNull, mysql.MySQLErrName[mysql.ErrInvalidUseOfNull])
errTooManyFields = terror.ClassDDL.New(mysql.ErrTooManyFields, mysql.MySQLErrName[mysql.ErrTooManyFields])
errInvalidSplitRegionRanges = terror.ClassDDL.New(mysql.ErrInvalidSplitRegionRanges, mysql.MySQLErrName[mysql.ErrInvalidSplitRegionRanges])
errReorgPanic = terror.ClassDDL.New(mysql.ErrReorgPanic, mysql.MySQLErrName[mysql.ErrReorgPanic])
errFkColumnCannotDrop = terror.ClassDDL.New(mysql.ErrFkColumnCannotDrop, mysql.MySQLErrName[mysql.ErrFkColumnCannotDrop])
errFKIncompatibleColumns = terror.ClassDDL.New(mysql.ErrFKIncompatibleColumns, mysql.MySQLErrName[mysql.ErrFKIncompatibleColumns])
errTooLongKey = terror.ClassDDL.New(mysql.ErrTooLongKey, mysql.MySQLErrName[mysql.ErrTooLongKey])
errKeyColumnDoesNotExits = terror.ClassDDL.New(mysql.ErrKeyColumnDoesNotExits, mysql.MySQLErrName[mysql.ErrKeyColumnDoesNotExits])
errUnknownTypeLength = terror.ClassDDL.New(mysql.ErrUnknownTypeLength, mysql.MySQLErrName[mysql.ErrUnknownTypeLength])
errUnknownFractionLength = terror.ClassDDL.New(mysql.ErrUnknownFractionLength, mysql.MySQLErrName[mysql.ErrUnknownFractionLength])
errInvalidDDLJobVersion = terror.ClassDDL.New(mysql.ErrInvalidDDLJobVersion, mysql.MySQLErrName[mysql.ErrInvalidDDLJobVersion])
errInvalidUseOfNull = terror.ClassDDL.New(mysql.ErrInvalidUseOfNull, mysql.MySQLErrName[mysql.ErrInvalidUseOfNull])
errTooManyFields = terror.ClassDDL.New(mysql.ErrTooManyFields, mysql.MySQLErrName[mysql.ErrTooManyFields])
errInvalidSplitRegionRanges = terror.ClassDDL.New(mysql.ErrInvalidSplitRegionRanges, mysql.MySQLErrName[mysql.ErrInvalidSplitRegionRanges])
errReorgPanic = terror.ClassDDL.New(mysql.ErrReorgPanic, mysql.MySQLErrName[mysql.ErrReorgPanic])
errFkColumnCannotDrop = terror.ClassDDL.New(mysql.ErrFkColumnCannotDrop, mysql.MySQLErrName[mysql.ErrFkColumnCannotDrop])
errFKIncompatibleColumns = terror.ClassDDL.New(mysql.ErrFKIncompatibleColumns, mysql.MySQLErrName[mysql.ErrFKIncompatibleColumns])

errOnlyOnRangeListPartition = terror.ClassDDL.New(mysql.ErrOnlyOnRangeListPartition, mysql.MySQLErrName[mysql.ErrOnlyOnRangeListPartition])
// errWrongKeyColumn is for table column cannot be indexed.
Expand Down
6 changes: 3 additions & 3 deletions ddl/index.go
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Expand Up @@ -79,7 +79,7 @@ func buildIndexColumns(columns []*model.ColumnInfo, indexPartSpecifications []*a

// The sum of all lengths must be shorter than the max length for prefix.
if sumLength > config.GetGlobalConfig().MaxIndexLength {
return nil, errors.Trace(errTooLongKey)
return nil, errTooLongKey.GenWithStackByArgs(config.GetGlobalConfig().MaxIndexLength)
}

idxParts = append(idxParts, &model.IndexColumn{
Expand Down Expand Up @@ -124,7 +124,7 @@ func checkIndexPrefixLength(columns []*model.ColumnInfo, idxColumns []*model.Ind
sumLength += indexColumnLength
// The sum of all lengths must be shorter than the max length for prefix.
if sumLength > config.GetGlobalConfig().MaxIndexLength {
return errors.Trace(errTooLongKey)
return errTooLongKey.GenWithStackByArgs(config.GetGlobalConfig().MaxIndexLength)
}
}
return nil
Expand Down Expand Up @@ -169,7 +169,7 @@ func checkIndexColumn(col *model.ColumnInfo, ic *ast.IndexPartSpecification) err

// Specified length must be shorter than the max length for prefix.
if ic.Length > config.GetGlobalConfig().MaxIndexLength {
return errors.Trace(errTooLongKey)
return errTooLongKey.GenWithStackByArgs(config.GetGlobalConfig().MaxIndexLength)
}
return nil
}
Expand Down
3 changes: 2 additions & 1 deletion ddl/serial_test.go
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Expand Up @@ -95,7 +95,8 @@ func (s *testSerialSuite) TestChangeMaxIndexLength(c *C) {

tk.MustExec("create table t (c1 varchar(3073), index(c1)) charset = ascii;")
tk.MustExec(fmt.Sprintf("create table t1 (c1 varchar(%d), index(c1)) charset = ascii;", config.DefMaxOfMaxIndexLength))
tk.MustGetErrCode(fmt.Sprintf("create table t2 (c1 varchar(%d), index(c1)) charset = ascii;", config.DefMaxOfMaxIndexLength+1), mysql.ErrTooLongKey)
_, err := tk.Exec(fmt.Sprintf("create table t2 (c1 varchar(%d), index(c1)) charset = ascii;", config.DefMaxOfMaxIndexLength+1))
c.Assert(err.Error(), Equals, "[ddl:1071]Specified key was too long; max key length is 12288 bytes")
tk.MustExec("drop table t, t1")
}

Expand Down