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expr_to_pb_test.go
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// Copyright 2017 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 expression
import (
"encoding/json"
"fmt"
"strings"
"github.com/gogo/protobuf/proto"
. "github.com/pingcap/check"
"github.com/pingcap/errors"
"github.com/pingcap/failpoint"
"github.com/pingcap/parser/ast"
"github.com/pingcap/parser/charset"
"github.com/pingcap/parser/mysql"
"github.com/pingcap/tidb/kv"
"github.com/pingcap/tidb/sessionctx/stmtctx"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/collate"
"github.com/pingcap/tidb/util/mock"
"github.com/pingcap/tipb/go-tipb"
)
func init() {
fpname := "github.com/pingcap/tidb/expression/PanicIfPbCodeUnspecified"
err := failpoint.Enable(fpname, "return(true)")
if err != nil {
panic(errors.Errorf("enable global failpoint `%s` failed: %v", fpname, err))
}
}
type dataGen4Expr2PbTest struct {
}
func (dg *dataGen4Expr2PbTest) genColumn(tp byte, id int64) *Column {
return &Column{
RetType: types.NewFieldType(tp),
ID: id,
Index: int(id),
}
}
func (s *testEvaluatorSuite) TestConstant2Pb(c *C) {
c.Skip("constant pb has changed")
var constExprs []Expression
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
// can be transformed
constValue := new(Constant)
constValue.Value = types.NewDatum(nil)
c.Assert(constValue.Value.Kind(), Equals, types.KindNull)
constExprs = append(constExprs, constValue)
constValue = new(Constant)
constValue.Value = types.NewDatum(int64(100))
c.Assert(constValue.Value.Kind(), Equals, types.KindInt64)
constExprs = append(constExprs, constValue)
constValue = new(Constant)
constValue.Value = types.NewDatum(uint64(100))
c.Assert(constValue.Value.Kind(), Equals, types.KindUint64)
constExprs = append(constExprs, constValue)
constValue = new(Constant)
constValue.Value = types.NewDatum("100")
c.Assert(constValue.Value.Kind(), Equals, types.KindString)
constExprs = append(constExprs, constValue)
constValue = new(Constant)
constValue.Value = types.NewDatum([]byte{'1', '2', '4', 'c'})
c.Assert(constValue.Value.Kind(), Equals, types.KindBytes)
constExprs = append(constExprs, constValue)
constValue = new(Constant)
constValue.Value = types.NewDatum(types.NewDecFromInt(110))
c.Assert(constValue.Value.Kind(), Equals, types.KindMysqlDecimal)
constExprs = append(constExprs, constValue)
constValue = new(Constant)
constValue.Value = types.NewDatum(types.Duration{})
c.Assert(constValue.Value.Kind(), Equals, types.KindMysqlDuration)
constExprs = append(constExprs, constValue)
// can not be transformed
constValue = new(Constant)
constValue.Value = types.NewDatum(float32(100))
c.Assert(constValue.Value.Kind(), Equals, types.KindFloat32)
constExprs = append(constExprs, constValue)
constValue = new(Constant)
constValue.Value = types.NewDatum(float64(100))
c.Assert(constValue.Value.Kind(), Equals, types.KindFloat64)
constExprs = append(constExprs, constValue)
constValue = new(Constant)
constValue.Value = types.NewDatum(types.Enum{Name: "A", Value: 19})
c.Assert(constValue.Value.Kind(), Equals, types.KindMysqlEnum)
constExprs = append(constExprs, constValue)
pushed, remained := PushDownExprs(sc, constExprs, client, kv.UnSpecified)
c.Assert(len(pushed), Equals, len(constExprs)-3)
c.Assert(len(remained), Equals, 3)
pbExprs, err := ExpressionsToPBList(sc, constExprs, client)
c.Assert(err, IsNil)
jsons := []string{
"{\"tp\":0,\"sig\":0}",
"{\"tp\":1,\"val\":\"gAAAAAAAAGQ=\",\"sig\":0}",
"{\"tp\":2,\"val\":\"AAAAAAAAAGQ=\",\"sig\":0}",
"{\"tp\":5,\"val\":\"MTAw\",\"sig\":0}",
"{\"tp\":6,\"val\":\"MTI0Yw==\",\"sig\":0}",
"{\"tp\":102,\"val\":\"AwCAbg==\",\"sig\":0}",
"{\"tp\":103,\"val\":\"gAAAAAAAAAA=\",\"sig\":0}",
}
for i, pbExpr := range pbExprs {
if i+3 < len(pbExprs) {
js, err := json.Marshal(pbExpr)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, jsons[i])
} else {
c.Assert(pbExpr, IsNil)
}
}
}
func (s *testEvaluatorSuite) TestColumn2Pb(c *C) {
var colExprs []Expression
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
colExprs = append(colExprs, dg.genColumn(mysql.TypeBit, 1))
colExprs = append(colExprs, dg.genColumn(mysql.TypeSet, 2))
colExprs = append(colExprs, dg.genColumn(mysql.TypeEnum, 3))
colExprs = append(colExprs, dg.genColumn(mysql.TypeGeometry, 4))
colExprs = append(colExprs, dg.genColumn(mysql.TypeUnspecified, 5))
pushed, remained := PushDownExprs(sc, colExprs, client, kv.UnSpecified)
c.Assert(len(pushed), Equals, 0)
c.Assert(len(remained), Equals, len(colExprs))
for _, col := range colExprs { // cannot be pushed down
_, err := ExpressionsToPBList(sc, []Expression{col}, client)
c.Assert(err, NotNil)
}
colExprs = colExprs[:0]
colExprs = append(colExprs, dg.genColumn(mysql.TypeTiny, 1))
colExprs = append(colExprs, dg.genColumn(mysql.TypeShort, 2))
colExprs = append(colExprs, dg.genColumn(mysql.TypeLong, 3))
colExprs = append(colExprs, dg.genColumn(mysql.TypeFloat, 4))
colExprs = append(colExprs, dg.genColumn(mysql.TypeDouble, 5))
colExprs = append(colExprs, dg.genColumn(mysql.TypeNull, 6))
colExprs = append(colExprs, dg.genColumn(mysql.TypeTimestamp, 7))
colExprs = append(colExprs, dg.genColumn(mysql.TypeLonglong, 8))
colExprs = append(colExprs, dg.genColumn(mysql.TypeInt24, 9))
colExprs = append(colExprs, dg.genColumn(mysql.TypeDate, 10))
colExprs = append(colExprs, dg.genColumn(mysql.TypeDuration, 11))
colExprs = append(colExprs, dg.genColumn(mysql.TypeDatetime, 12))
colExprs = append(colExprs, dg.genColumn(mysql.TypeYear, 13))
colExprs = append(colExprs, dg.genColumn(mysql.TypeVarchar, 15))
colExprs = append(colExprs, dg.genColumn(mysql.TypeJSON, 16))
colExprs = append(colExprs, dg.genColumn(mysql.TypeNewDecimal, 17))
colExprs = append(colExprs, dg.genColumn(mysql.TypeTinyBlob, 18))
colExprs = append(colExprs, dg.genColumn(mysql.TypeMediumBlob, 19))
colExprs = append(colExprs, dg.genColumn(mysql.TypeLongBlob, 20))
colExprs = append(colExprs, dg.genColumn(mysql.TypeBlob, 21))
colExprs = append(colExprs, dg.genColumn(mysql.TypeVarString, 22))
colExprs = append(colExprs, dg.genColumn(mysql.TypeString, 23))
pushed, remained = PushDownExprs(sc, colExprs, client, kv.UnSpecified)
c.Assert(len(pushed), Equals, len(colExprs))
c.Assert(len(remained), Equals, 0)
pbExprs, err := ExpressionsToPBList(sc, colExprs, client)
c.Assert(err, IsNil)
jsons := []string{
"{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":1,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":2,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAM=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAQ=\",\"sig\":0,\"field_type\":{\"tp\":4,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAU=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAY=\",\"sig\":0,\"field_type\":{\"tp\":6,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAc=\",\"sig\":0,\"field_type\":{\"tp\":7,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAg=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAk=\",\"sig\":0,\"field_type\":{\"tp\":9,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAo=\",\"sig\":0,\"field_type\":{\"tp\":10,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAs=\",\"sig\":0,\"field_type\":{\"tp\":11,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAw=\",\"sig\":0,\"field_type\":{\"tp\":12,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAA0=\",\"sig\":0,\"field_type\":{\"tp\":13,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAA8=\",\"sig\":0,\"field_type\":{\"tp\":15,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":46,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAABA=\",\"sig\":0,\"field_type\":{\"tp\":245,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAABE=\",\"sig\":0,\"field_type\":{\"tp\":246,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAABI=\",\"sig\":0,\"field_type\":{\"tp\":249,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAABM=\",\"sig\":0,\"field_type\":{\"tp\":250,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAABQ=\",\"sig\":0,\"field_type\":{\"tp\":251,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAABU=\",\"sig\":0,\"field_type\":{\"tp\":252,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAABY=\",\"sig\":0,\"field_type\":{\"tp\":253,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":46,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAABc=\",\"sig\":0,\"field_type\":{\"tp\":254,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":46,\"charset\":\"\"}}",
}
for i, pbExpr := range pbExprs {
c.Assert(pbExprs, NotNil)
js, err := json.Marshal(pbExpr)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, jsons[i], Commentf("%v\n", i))
}
for _, expr := range colExprs {
expr.(*Column).ID = 0
expr.(*Column).Index = 0
}
pushed, remained = PushDownExprs(sc, colExprs, client, kv.UnSpecified)
c.Assert(len(pushed), Equals, len(colExprs))
c.Assert(len(remained), Equals, 0)
}
func (s *testEvaluatorSuite) TestCompareFunc2Pb(c *C) {
var compareExprs = make([]Expression, 0)
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
funcNames := []string{ast.LT, ast.LE, ast.GT, ast.GE, ast.EQ, ast.NE, ast.NullEQ}
for _, funcName := range funcNames {
fc, err := NewFunction(mock.NewContext(), funcName, types.NewFieldType(mysql.TypeUnspecified), dg.genColumn(mysql.TypeLonglong, 1), dg.genColumn(mysql.TypeLonglong, 2))
c.Assert(err, IsNil)
compareExprs = append(compareExprs, fc)
}
pushed, remained := PushDownExprs(sc, compareExprs, client, kv.UnSpecified)
c.Assert(len(pushed), Equals, len(compareExprs))
c.Assert(len(remained), Equals, 0)
pbExprs, err := ExpressionsToPBList(sc, compareExprs, client)
c.Assert(err, IsNil)
c.Assert(len(pbExprs), Equals, len(compareExprs))
jsons := []string{
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":100,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":110,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":120,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":130,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":140,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":150,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":8,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":160,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
}
for i, pbExpr := range pbExprs {
c.Assert(pbExprs, NotNil)
js, err := json.Marshal(pbExpr)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, jsons[i])
}
}
func (s *testEvaluatorSuite) TestLikeFunc2Pb(c *C) {
var likeFuncs []Expression
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
retTp := types.NewFieldType(mysql.TypeString)
retTp.Charset = charset.CharsetUTF8
retTp.Collate = charset.CollationUTF8
args := []Expression{
&Constant{RetType: retTp, Value: types.NewDatum("string")},
&Constant{RetType: retTp, Value: types.NewDatum("pattern")},
&Constant{RetType: retTp, Value: types.NewDatum(`%abc%`)},
&Constant{RetType: retTp, Value: types.NewDatum("\\")},
}
ctx := mock.NewContext()
retTp = types.NewFieldType(mysql.TypeUnspecified)
fc, err := NewFunction(ctx, ast.Like, retTp, args[0], args[1], args[3])
c.Assert(err, IsNil)
likeFuncs = append(likeFuncs, fc)
fc, err = NewFunction(ctx, ast.Like, retTp, args[0], args[2], args[3])
c.Assert(err, IsNil)
likeFuncs = append(likeFuncs, fc)
pbExprs, err := ExpressionsToPBList(sc, likeFuncs, client)
c.Assert(err, IsNil)
results := []string{
`{"tp":10000,"children":[{"tp":5,"val":"c3RyaW5n","sig":0,"field_type":{"tp":254,"flag":1,"flen":-1,"decimal":-1,"collate":83,"charset":"utf8"}},{"tp":5,"val":"cGF0dGVybg==","sig":0,"field_type":{"tp":254,"flag":1,"flen":-1,"decimal":-1,"collate":83,"charset":"utf8"}},{"tp":10000,"val":"CAA=","children":[{"tp":5,"val":"XA==","sig":0,"field_type":{"tp":254,"flag":1,"flen":-1,"decimal":-1,"collate":83,"charset":"utf8"}}],"sig":30,"field_type":{"tp":8,"flag":128,"flen":-1,"decimal":0,"collate":63,"charset":"binary"}}],"sig":4310,"field_type":{"tp":8,"flag":128,"flen":1,"decimal":0,"collate":63,"charset":"binary"}}`,
`{"tp":10000,"children":[{"tp":5,"val":"c3RyaW5n","sig":0,"field_type":{"tp":254,"flag":1,"flen":-1,"decimal":-1,"collate":83,"charset":"utf8"}},{"tp":5,"val":"JWFiYyU=","sig":0,"field_type":{"tp":254,"flag":1,"flen":-1,"decimal":-1,"collate":83,"charset":"utf8"}},{"tp":10000,"val":"CAA=","children":[{"tp":5,"val":"XA==","sig":0,"field_type":{"tp":254,"flag":1,"flen":-1,"decimal":-1,"collate":83,"charset":"utf8"}}],"sig":30,"field_type":{"tp":8,"flag":128,"flen":-1,"decimal":0,"collate":63,"charset":"binary"}}],"sig":4310,"field_type":{"tp":8,"flag":128,"flen":1,"decimal":0,"collate":63,"charset":"binary"}}`,
}
for i, pbExpr := range pbExprs {
js, err := json.Marshal(pbExpr)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, results[i])
}
}
func (s *testEvaluatorSuite) TestArithmeticalFunc2Pb(c *C) {
var arithmeticalFuncs = make([]Expression, 0)
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
funcNames := []string{ast.Plus, ast.Minus, ast.Mul, ast.Div}
for _, funcName := range funcNames {
fc, err := NewFunction(
mock.NewContext(),
funcName,
types.NewFieldType(mysql.TypeUnspecified),
dg.genColumn(mysql.TypeDouble, 1),
dg.genColumn(mysql.TypeDouble, 2))
c.Assert(err, IsNil)
arithmeticalFuncs = append(arithmeticalFuncs, fc)
}
jsons := make(map[string]string)
jsons[ast.Plus] = "{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":200,\"field_type\":{\"tp\":5,\"flag\":128,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"binary\"}}"
jsons[ast.Minus] = "{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":204,\"field_type\":{\"tp\":5,\"flag\":128,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"binary\"}}"
jsons[ast.Mul] = "{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":208,\"field_type\":{\"tp\":5,\"flag\":128,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"binary\"}}"
jsons[ast.Div] = "{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":211,\"field_type\":{\"tp\":5,\"flag\":128,\"flen\":23,\"decimal\":-1,\"collate\":63,\"charset\":\"binary\"}}"
pbExprs, err := ExpressionsToPBList(sc, arithmeticalFuncs, client)
c.Assert(err, IsNil)
for i, pbExpr := range pbExprs {
c.Assert(pbExpr, NotNil)
js, err := json.Marshal(pbExpr)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, jsons[funcNames[i]], Commentf("%v\n", funcNames[i]))
}
funcNames = []string{ast.Mod, ast.IntDiv} // cannot be pushed down
for _, funcName := range funcNames {
fc, err := NewFunction(
mock.NewContext(),
funcName,
types.NewFieldType(mysql.TypeUnspecified),
dg.genColumn(mysql.TypeDouble, 1),
dg.genColumn(mysql.TypeDouble, 2))
c.Assert(err, IsNil)
_, err = ExpressionsToPBList(sc, []Expression{fc}, client)
c.Assert(err, NotNil)
}
}
func (s *testEvaluatorSuite) TestDateFunc2Pb(c *C) {
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
fc, err := NewFunction(
mock.NewContext(),
ast.DateFormat,
types.NewFieldType(mysql.TypeUnspecified),
dg.genColumn(mysql.TypeDatetime, 1),
dg.genColumn(mysql.TypeString, 2))
c.Assert(err, IsNil)
funcs := []Expression{fc}
pbExprs, err := ExpressionsToPBList(sc, funcs, client)
c.Assert(err, IsNil)
c.Assert(pbExprs[0], NotNil)
js, err := json.Marshal(pbExprs[0])
c.Assert(err, IsNil)
c.Assert(string(js), Equals, "{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":12,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":254,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":46,\"charset\":\"\"}}],\"sig\":6001,\"field_type\":{\"tp\":253,\"flag\":0,\"flen\":0,\"decimal\":-1,\"collate\":46,\"charset\":\"utf8mb4\"}}")
}
func (s *testEvaluatorSuite) TestLogicalFunc2Pb(c *C) {
var logicalFuncs = make([]Expression, 0)
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
funcNames := []string{ast.LogicAnd, ast.LogicOr, ast.LogicXor, ast.UnaryNot}
for i, funcName := range funcNames {
args := []Expression{dg.genColumn(mysql.TypeTiny, 1)}
if i+1 < len(funcNames) {
args = append(args, dg.genColumn(mysql.TypeTiny, 2))
}
fc, err := NewFunction(
mock.NewContext(),
funcName,
types.NewFieldType(mysql.TypeUnspecified),
args...,
)
c.Assert(err, IsNil)
logicalFuncs = append(logicalFuncs, fc)
}
pbExprs, err := ExpressionsToPBList(sc, logicalFuncs, client)
c.Assert(err, IsNil)
jsons := []string{
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":1,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":1,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3101,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":1,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":1,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3102,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":1,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":1,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3103,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":1,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3104,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
}
for i, pbExpr := range pbExprs {
js, err := json.Marshal(pbExpr)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, jsons[i])
}
}
func (s *testEvaluatorSuite) TestBitwiseFunc2Pb(c *C) {
var bitwiseFuncs = make([]Expression, 0)
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
funcNames := []string{ast.And, ast.Or, ast.Xor, ast.LeftShift, ast.RightShift, ast.BitNeg}
for i, funcName := range funcNames {
args := []Expression{dg.genColumn(mysql.TypeLong, 1)}
if i+1 < len(funcNames) {
args = append(args, dg.genColumn(mysql.TypeLong, 2))
}
fc, err := NewFunction(
mock.NewContext(),
funcName,
types.NewFieldType(mysql.TypeUnspecified),
args...,
)
c.Assert(err, IsNil)
bitwiseFuncs = append(bitwiseFuncs, fc)
}
pbExprs, err := ExpressionsToPBList(sc, bitwiseFuncs, client)
c.Assert(err, IsNil)
jsons := []string{
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3118,\"field_type\":{\"tp\":8,\"flag\":160,\"flen\":20,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3119,\"field_type\":{\"tp\":8,\"flag\":160,\"flen\":20,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3120,\"field_type\":{\"tp\":8,\"flag\":160,\"flen\":20,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3129,\"field_type\":{\"tp\":8,\"flag\":160,\"flen\":20,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3130,\"field_type\":{\"tp\":8,\"flag\":160,\"flen\":20,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3121,\"field_type\":{\"tp\":8,\"flag\":160,\"flen\":20,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
}
for i, pbExpr := range pbExprs {
js, err := json.Marshal(pbExpr)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, jsons[i])
}
}
func (s *testEvaluatorSerialSuites) TestPanicIfPbCodeUnspecified(c *C) {
dg := new(dataGen4Expr2PbTest)
args := []Expression{dg.genColumn(mysql.TypeLong, 1), dg.genColumn(mysql.TypeLong, 2)}
fc, err := NewFunction(
mock.NewContext(),
ast.And,
types.NewFieldType(mysql.TypeUnspecified),
args...,
)
c.Assert(err, IsNil)
fn := fc.(*ScalarFunction)
fn.Function.setPbCode(tipb.ScalarFuncSig_Unspecified)
c.Assert(fn.Function.PbCode(), Equals, tipb.ScalarFuncSig_Unspecified)
pc := PbConverter{client: new(mock.Client), sc: new(stmtctx.StatementContext)}
c.Assert(func() { pc.ExprToPB(fn) }, PanicMatches, "unspecified PbCode: .*")
}
func (s *testEvaluatorSerialSuites) TestPushDownSwitcher(c *C) {
var funcs = make([]Expression, 0)
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
cases := []struct {
name string
sig tipb.ScalarFuncSig
enable bool
}{
// Note that so far ScalarFuncSigs here are not be pushed down when the failpoint PushDownTestSwitcher
// is disable, which is the prerequisite to pass this test.
// Need to be replaced with other non pushed down ScalarFuncSigs if they are pushed down one day.
{ast.Sin, tipb.ScalarFuncSig_Sin, true},
{ast.Cos, tipb.ScalarFuncSig_Cos, false},
{ast.Tan, tipb.ScalarFuncSig_Tan, true},
}
var enabled []string
for _, funcName := range cases {
args := []Expression{dg.genColumn(mysql.TypeLong, 1)}
fc, err := NewFunction(
mock.NewContext(),
funcName.name,
types.NewFieldType(mysql.TypeUnspecified),
args...,
)
c.Assert(err, IsNil)
funcs = append(funcs, fc)
if funcName.enable {
enabled = append(enabled, funcName.name)
}
}
c.Assert(failpoint.Enable("github.com/pingcap/tidb/expression/PushDownTestSwitcher", `return("all")`), IsNil)
defer func() { c.Assert(failpoint.Disable("github.com/pingcap/tidb/expression/PushDownTestSwitcher"), IsNil) }()
pbExprs, err := ExpressionsToPBList(sc, funcs, client)
c.Assert(err, IsNil)
c.Assert(len(pbExprs), Equals, len(cases))
for i, pbExpr := range pbExprs {
c.Assert(pbExpr.Sig, Equals, cases[i].sig, Commentf("function: %s, sig: %v", cases[i].name, cases[i].sig))
}
// All disabled
c.Assert(failpoint.Enable("github.com/pingcap/tidb/expression/PushDownTestSwitcher", `return("")`), IsNil)
pc := PbConverter{client: client, sc: sc}
for i := range funcs {
pbExpr := pc.ExprToPB(funcs[i])
c.Assert(pbExpr, IsNil, Commentf("function: %s, sig: %v", cases[i].name, cases[i].sig))
}
// Partial enabled
fpexpr := fmt.Sprintf(`return("%s")`, strings.Join(enabled, ","))
c.Assert(failpoint.Enable("github.com/pingcap/tidb/expression/PushDownTestSwitcher", fpexpr), IsNil)
for i := range funcs {
pbExpr := pc.ExprToPB(funcs[i])
if !cases[i].enable {
c.Assert(pbExpr, IsNil, Commentf("function: %s, sig: %v", cases[i].name, cases[i].sig))
continue
}
c.Assert(pbExpr.Sig, Equals, cases[i].sig, Commentf("function: %s, sig: %v", cases[i].name, cases[i].sig))
}
}
func (s *testEvaluatorSuite) TestControlFunc2Pb(c *C) {
var controlFuncs = make([]Expression, 0)
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
funcNames := []string{
ast.Case,
ast.If,
ast.Ifnull,
}
for i, funcName := range funcNames {
args := []Expression{dg.genColumn(mysql.TypeLong, 1)}
args = append(args, dg.genColumn(mysql.TypeLong, 2))
if i < 2 {
args = append(args, dg.genColumn(mysql.TypeLong, 3))
}
fc, err := NewFunction(
mock.NewContext(),
funcName,
types.NewFieldType(mysql.TypeUnspecified),
args...,
)
c.Assert(err, IsNil)
controlFuncs = append(controlFuncs, fc)
}
pbExprs, err := ExpressionsToPBList(sc, controlFuncs, client)
c.Assert(err, IsNil)
jsons := []string{
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAM=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":4208,\"field_type\":{\"tp\":3,\"flag\":128,\"flen\":-1,\"decimal\":0,\"collate\":63,\"charset\":\"\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAM=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":4107,\"field_type\":{\"tp\":3,\"flag\":128,\"flen\":-1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":4101,\"field_type\":{\"tp\":3,\"flag\":128,\"flen\":-1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
"null",
}
for i, pbExpr := range pbExprs {
js, err := json.Marshal(pbExpr)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, jsons[i])
}
}
func (s *testEvaluatorSuite) TestOtherFunc2Pb(c *C) {
var otherFuncs = make([]Expression, 0)
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
funcNames := []string{ast.Coalesce, ast.IsNull}
for _, funcName := range funcNames {
fc, err := NewFunction(
mock.NewContext(),
funcName,
types.NewFieldType(mysql.TypeUnspecified),
dg.genColumn(mysql.TypeLong, 1),
)
c.Assert(err, IsNil)
otherFuncs = append(otherFuncs, fc)
}
pbExprs, err := ExpressionsToPBList(sc, otherFuncs, client)
c.Assert(err, IsNil)
jsons := map[string]string{
ast.Coalesce: "{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":4201,\"field_type\":{\"tp\":3,\"flag\":128,\"flen\":0,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}",
ast.IsNull: "{\"tp\":10000,\"children\":[{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":3,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}}],\"sig\":3116,\"field_type\":{\"tp\":8,\"flag\":128,\"flen\":1,\"decimal\":0,\"collate\":63,\"charset\":\"binary\"}}",
}
for i, pbExpr := range pbExprs {
js, err := json.Marshal(pbExpr)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, jsons[funcNames[i]])
}
}
func (s *testEvaluatorSuite) TestExprPushDownToFlash(c *C) {
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
exprs := make([]Expression, 0)
jsonColumn := dg.genColumn(mysql.TypeJSON, 1)
intColumn := dg.genColumn(mysql.TypeLonglong, 2)
function, err := NewFunction(mock.NewContext(), ast.JSONLength, types.NewFieldType(mysql.TypeLonglong), jsonColumn)
c.Assert(err, IsNil)
exprs = append(exprs, function)
function, err = NewFunction(mock.NewContext(), ast.If, types.NewFieldType(mysql.TypeLonglong), intColumn, intColumn, intColumn)
c.Assert(err, IsNil)
exprs = append(exprs, function)
function, err = NewFunction(mock.NewContext(), ast.BitNeg, types.NewFieldType(mysql.TypeLonglong), intColumn)
c.Assert(err, IsNil)
exprs = append(exprs, function)
function, err = NewFunction(mock.NewContext(), ast.Xor, types.NewFieldType(mysql.TypeLonglong), intColumn, intColumn)
c.Assert(err, IsNil)
exprs = append(exprs, function)
canPush := CanExprsPushDown(sc, exprs, client, kv.TiFlash)
c.Assert(canPush, Equals, true)
function, err = NewFunction(mock.NewContext(), ast.JSONDepth, types.NewFieldType(mysql.TypeLonglong), jsonColumn)
c.Assert(err, IsNil)
exprs = append(exprs, function)
pushed, remained := PushDownExprs(sc, exprs, client, kv.TiFlash)
c.Assert(len(pushed), Equals, len(exprs)-1)
c.Assert(len(remained), Equals, 1)
}
func (s *testEvaluatorSuite) TestExprOnlyPushDownToFlash(c *C) {
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
function, err := NewFunction(mock.NewContext(), ast.TimestampDiff, types.NewFieldType(mysql.TypeLonglong),
dg.genColumn(mysql.TypeString, 1), dg.genColumn(mysql.TypeDatetime, 2), dg.genColumn(mysql.TypeDatetime, 3))
c.Assert(err, IsNil)
var exprs = make([]Expression, 0)
exprs = append(exprs, function)
pushed, remained := PushDownExprs(sc, exprs, client, kv.UnSpecified)
c.Assert(len(pushed), Equals, 1)
c.Assert(len(remained), Equals, 0)
canPush := CanExprsPushDown(sc, exprs, client, kv.TiFlash)
c.Assert(canPush, Equals, true)
canPush = CanExprsPushDown(sc, exprs, client, kv.TiKV)
c.Assert(canPush, Equals, false)
pushed, remained = PushDownExprs(sc, exprs, client, kv.TiFlash)
c.Assert(len(pushed), Equals, 1)
c.Assert(len(remained), Equals, 0)
pushed, remained = PushDownExprs(sc, exprs, client, kv.TiKV)
c.Assert(len(pushed), Equals, 0)
c.Assert(len(remained), Equals, 1)
}
func (s *testEvaluatorSuite) TestExprOnlyPushDownToTiKV(c *C) {
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
function, err := NewFunction(mock.NewContext(), "dayofyear", types.NewFieldType(mysql.TypeLonglong), dg.genColumn(mysql.TypeDatetime, 1))
c.Assert(err, IsNil)
var exprs = make([]Expression, 0)
exprs = append(exprs, function)
pushed, remained := PushDownExprs(sc, exprs, client, kv.UnSpecified)
c.Assert(len(pushed), Equals, 1)
c.Assert(len(remained), Equals, 0)
canPush := CanExprsPushDown(sc, exprs, client, kv.TiFlash)
c.Assert(canPush, Equals, false)
canPush = CanExprsPushDown(sc, exprs, client, kv.TiKV)
c.Assert(canPush, Equals, true)
pushed, remained = PushDownExprs(sc, exprs, client, kv.TiFlash)
c.Assert(len(pushed), Equals, 0)
c.Assert(len(remained), Equals, 1)
pushed, remained = PushDownExprs(sc, exprs, client, kv.TiKV)
c.Assert(len(pushed), Equals, 1)
c.Assert(len(remained), Equals, 0)
}
func (s *testEvaluatorSuite) TestGroupByItem2Pb(c *C) {
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
item := dg.genColumn(mysql.TypeDouble, 0)
pbByItem := GroupByItemToPB(sc, client, item)
js, err := json.Marshal(pbByItem)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, "{\"expr\":{\"tp\":201,\"val\":\"gAAAAAAAAAA=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},\"desc\":false}")
item = dg.genColumn(mysql.TypeDouble, 1)
pbByItem = GroupByItemToPB(sc, client, item)
js, err = json.Marshal(pbByItem)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, "{\"expr\":{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},\"desc\":false}")
}
func (s *testEvaluatorSuite) TestSortByItem2Pb(c *C) {
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
item := dg.genColumn(mysql.TypeDouble, 0)
pbByItem := SortByItemToPB(sc, client, item, false)
js, err := json.Marshal(pbByItem)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, "{\"expr\":{\"tp\":201,\"val\":\"gAAAAAAAAAA=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},\"desc\":false}")
item = dg.genColumn(mysql.TypeDouble, 1)
pbByItem = SortByItemToPB(sc, client, item, false)
js, err = json.Marshal(pbByItem)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, "{\"expr\":{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},\"desc\":false}")
item = dg.genColumn(mysql.TypeDouble, 1)
pbByItem = SortByItemToPB(sc, client, item, true)
js, err = json.Marshal(pbByItem)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, "{\"expr\":{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":63,\"charset\":\"\"}},\"desc\":true}")
}
func (s *testEvaluatorSerialSuites) TestMetadata(c *C) {
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
c.Assert(failpoint.Enable("github.com/pingcap/tidb/expression/PushDownTestSwitcher", `return("all")`), IsNil)
defer func() { c.Assert(failpoint.Disable("github.com/pingcap/tidb/expression/PushDownTestSwitcher"), IsNil) }()
pc := PbConverter{client: client, sc: sc}
metadata := new(tipb.InUnionMetadata)
var err error
// InUnion flag is false in `BuildCastFunction` when `ScalarFuncSig_CastStringAsInt`
cast := BuildCastFunction(mock.NewContext(), dg.genColumn(mysql.TypeString, 1), types.NewFieldType(mysql.TypeLonglong))
c.Assert(cast.(*ScalarFunction).Function.metadata(), DeepEquals, &tipb.InUnionMetadata{InUnion: false})
expr := pc.ExprToPB(cast)
c.Assert(expr.Sig, Equals, tipb.ScalarFuncSig_CastStringAsInt)
c.Assert(len(expr.Val), Greater, 0)
err = proto.Unmarshal(expr.Val, metadata)
c.Assert(err, IsNil)
c.Assert(metadata.InUnion, Equals, false)
// InUnion flag is nil in `BuildCastFunction4Union` when `ScalarFuncSig_CastIntAsString`
castInUnion := BuildCastFunction4Union(mock.NewContext(), dg.genColumn(mysql.TypeLonglong, 1), types.NewFieldType(mysql.TypeString))
c.Assert(castInUnion.(*ScalarFunction).Function.metadata(), IsNil)
expr = pc.ExprToPB(castInUnion)
c.Assert(expr.Sig, Equals, tipb.ScalarFuncSig_CastIntAsString)
c.Assert(len(expr.Val), Equals, 0)
// InUnion flag is true in `BuildCastFunction4Union` when `ScalarFuncSig_CastStringAsInt`
castInUnion = BuildCastFunction4Union(mock.NewContext(), dg.genColumn(mysql.TypeString, 1), types.NewFieldType(mysql.TypeLonglong))
c.Assert(castInUnion.(*ScalarFunction).Function.metadata(), DeepEquals, &tipb.InUnionMetadata{InUnion: true})
expr = pc.ExprToPB(castInUnion)
c.Assert(expr.Sig, Equals, tipb.ScalarFuncSig_CastStringAsInt)
c.Assert(len(expr.Val), Greater, 0)
err = proto.Unmarshal(expr.Val, metadata)
c.Assert(err, IsNil)
c.Assert(metadata.InUnion, Equals, true)
}
func columnCollation(c *Column, coll string) *Column {
c.RetType.Collate = coll
return c
}
func (s *testEvaluatorSerialSuites) TestNewCollationsEnabled(c *C) {
collate.SetNewCollationEnabledForTest(true)
defer collate.SetNewCollationEnabledForTest(false)
var colExprs []Expression
sc := new(stmtctx.StatementContext)
client := new(mock.Client)
dg := new(dataGen4Expr2PbTest)
colExprs = colExprs[:0]
colExprs = append(colExprs, dg.genColumn(mysql.TypeVarchar, 1))
colExprs = append(colExprs, columnCollation(dg.genColumn(mysql.TypeVarchar, 2), "some_invalid_collation"))
colExprs = append(colExprs, columnCollation(dg.genColumn(mysql.TypeVarString, 3), "utf8mb4_general_ci"))
colExprs = append(colExprs, columnCollation(dg.genColumn(mysql.TypeString, 4), "utf8mb4_0900_ai_ci"))
colExprs = append(colExprs, columnCollation(dg.genColumn(mysql.TypeVarchar, 5), "utf8_bin"))
colExprs = append(colExprs, columnCollation(dg.genColumn(mysql.TypeVarchar, 6), "utf8_unicode_ci"))
pushed, _ := PushDownExprs(sc, colExprs, client, kv.UnSpecified)
c.Assert(len(pushed), Equals, len(colExprs))
pbExprs, err := ExpressionsToPBList(sc, colExprs, client)
c.Assert(err, IsNil)
jsons := []string{
"{\"tp\":201,\"val\":\"gAAAAAAAAAE=\",\"sig\":0,\"field_type\":{\"tp\":15,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":-46,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAI=\",\"sig\":0,\"field_type\":{\"tp\":15,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":-46,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAM=\",\"sig\":0,\"field_type\":{\"tp\":253,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":-45,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAQ=\",\"sig\":0,\"field_type\":{\"tp\":254,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":-255,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAU=\",\"sig\":0,\"field_type\":{\"tp\":15,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":-83,\"charset\":\"\"}}",
"{\"tp\":201,\"val\":\"gAAAAAAAAAY=\",\"sig\":0,\"field_type\":{\"tp\":15,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":-192,\"charset\":\"\"}}",
}
for i, pbExpr := range pbExprs {
c.Assert(pbExprs, NotNil)
js, err := json.Marshal(pbExpr)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, jsons[i], Commentf("%v\n", i))
}
item := columnCollation(dg.genColumn(mysql.TypeDouble, 0), "utf8mb4_0900_ai_ci")
pbByItem := GroupByItemToPB(sc, client, item)
js, err := json.Marshal(pbByItem)
c.Assert(err, IsNil)
c.Assert(string(js), Equals, "{\"expr\":{\"tp\":201,\"val\":\"gAAAAAAAAAA=\",\"sig\":0,\"field_type\":{\"tp\":5,\"flag\":0,\"flen\":-1,\"decimal\":-1,\"collate\":-255,\"charset\":\"\"}},\"desc\":false}")
}
func (s *testEvalSerialSuite) TestPushCollationDown(c *C) {
collate.SetNewCollationEnabledForTest(true)
defer collate.SetNewCollationEnabledForTest(false)
dg := new(dataGen4Expr2PbTest)
fc, err := NewFunction(mock.NewContext(), ast.EQ, types.NewFieldType(mysql.TypeUnspecified), dg.genColumn(mysql.TypeVarchar, 0), dg.genColumn(mysql.TypeVarchar, 1))
c.Assert(err, IsNil)
client := new(mock.Client)
sc := new(stmtctx.StatementContext)
tps := []*types.FieldType{types.NewFieldType(mysql.TypeVarchar), types.NewFieldType(mysql.TypeVarchar)}
for _, coll := range []string{charset.CollationBin, charset.CollationLatin1, charset.CollationUTF8, charset.CollationUTF8MB4} {
fc.SetCharsetAndCollation("binary", coll) // only collation matters
pbExpr, err := ExpressionsToPBList(sc, []Expression{fc}, client)
c.Assert(err, IsNil)
expr, err := PBToExpr(pbExpr[0], tps, sc)
c.Assert(err, IsNil)
_, eColl := expr.CharsetAndCollation(nil)
c.Assert(eColl, Equals, coll)
}
}