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ticdc: Support Vector data type | tidb=master pd=master tikv=master (#…
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,64 @@ | ||
| // Copyright 2024 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package mysql | ||
|
|
||
| import ( | ||
| "bytes" | ||
|
|
||
| "github.com/pingcap/log" | ||
| "github.com/pingcap/tidb/pkg/parser" | ||
| "github.com/pingcap/tidb/pkg/parser/ast" | ||
| "github.com/pingcap/tidb/pkg/parser/format" | ||
| "github.com/pingcap/tidb/pkg/parser/mysql" | ||
| "go.uber.org/zap" | ||
| ) | ||
|
|
||
| type visiter struct{} | ||
|
|
||
| func (f *visiter) Enter(n ast.Node) (node ast.Node, skipChildren bool) { | ||
| switch v := n.(type) { | ||
| case *ast.ColumnDef: | ||
| if v.Tp != nil { | ||
| switch v.Tp.GetType() { | ||
| case mysql.TypeTiDBVectorFloat32: | ||
| v.Tp.SetType(mysql.TypeLongBlob) | ||
| v.Tp.SetCharset("") | ||
| v.Tp.SetCollate("") | ||
| v.Tp.SetFlen(-1) | ||
| v.Options = []*ast.ColumnOption{} // clear COMMENT | ||
| } | ||
| } | ||
| } | ||
| return n, false | ||
| } | ||
|
|
||
| func (f *visiter) Leave(n ast.Node) (node ast.Node, ok bool) { | ||
| return n, true | ||
| } | ||
|
|
||
| func formatQuery(sql string) string { | ||
| p := parser.New() | ||
| stmt, err := p.ParseOneStmt(sql, "", "") | ||
| if err != nil { | ||
| log.Error("format query parse one stmt failed", zap.Error(err)) | ||
| } | ||
| stmt.Accept(&visiter{}) | ||
|
|
||
| buf := new(bytes.Buffer) | ||
| restoreCtx := format.NewRestoreCtx(format.DefaultRestoreFlags, buf) | ||
| if err = stmt.Restore(restoreCtx); err != nil { | ||
| log.Error("format query restore failed", zap.Error(err)) | ||
| } | ||
| return buf.String() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,47 @@ | ||
| // Copyright 2024 PingCAP, Inc. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| package mysql | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "testing" | ||
|
|
||
| "github.com/pingcap/tidb/pkg/parser" | ||
| "github.com/pingcap/tidb/pkg/parser/format" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
||
| func TestFormatQuery(t *testing.T) { | ||
| sql := "CREATE TABLE `test` (`id` INT PRIMARY KEY,`data` VECTOR(5))" | ||
| expectSQL := "CREATE TABLE `test` (`id` INT PRIMARY KEY,`data` LONGTEXT)" | ||
| p := parser.New() | ||
| stmt, err := p.ParseOneStmt(sql, "", "") | ||
| require.NoError(t, err) | ||
| stmt.Accept(&visiter{}) | ||
|
|
||
| buf := new(bytes.Buffer) | ||
| restoreCtx := format.NewRestoreCtx(format.DefaultRestoreFlags, buf) | ||
| err = stmt.Restore(restoreCtx) | ||
| require.NoError(t, err) | ||
| require.Equal(t, buf.String(), expectSQL) | ||
| } | ||
|
|
||
| func BenchmarkFormatQuery(b *testing.B) { | ||
| sql := "CREATE TABLE `test` (`id` INT PRIMARY KEY,`data` LONGTEXT)" | ||
| b.ReportAllocs() | ||
| b.ResetTimer() | ||
| for i := 0; i < b.N; i++ { | ||
| formatQuery(sql) | ||
| } | ||
| } |
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