280 lines
9.4 KiB
Go
280 lines
9.4 KiB
Go
// 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 (
|
|
"math"
|
|
"time"
|
|
|
|
. "github.com/pingcap/check"
|
|
"github.com/pingcap/parser/ast"
|
|
"github.com/pingcap/parser/mysql"
|
|
"github.com/pingcap/tidb/sessionctx/stmtctx"
|
|
"github.com/pingcap/tidb/types"
|
|
"github.com/pingcap/tidb/types/json"
|
|
"github.com/pingcap/tidb/util/chunk"
|
|
"github.com/pingcap/tidb/util/hack"
|
|
"github.com/pingcap/tidb/util/testleak"
|
|
)
|
|
|
|
func (s *testEvaluatorSuite) TestBitCount(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
stmtCtx := s.ctx.GetSessionVars().StmtCtx
|
|
origin := stmtCtx.IgnoreTruncate
|
|
stmtCtx.IgnoreTruncate = true
|
|
defer func() {
|
|
stmtCtx.IgnoreTruncate = origin
|
|
}()
|
|
fc := funcs[ast.BitCount]
|
|
var bitCountCases = []struct {
|
|
origin interface{}
|
|
count interface{}
|
|
}{
|
|
{int64(8), int64(1)},
|
|
{int64(29), int64(4)},
|
|
{int64(0), int64(0)},
|
|
{int64(-1), int64(64)},
|
|
{int64(-11), int64(62)},
|
|
{int64(-1000), int64(56)},
|
|
{float64(1.1), int64(1)},
|
|
{float64(3.1), int64(2)},
|
|
{float64(-1.1), int64(64)},
|
|
{float64(-3.1), int64(63)},
|
|
{uint64(math.MaxUint64), int64(64)},
|
|
{string("xxx"), int64(0)},
|
|
{nil, nil},
|
|
}
|
|
for _, test := range bitCountCases {
|
|
in := types.NewDatum(test.origin)
|
|
f, err := fc.getFunction(s.ctx, s.datumsToConstants([]types.Datum{in}))
|
|
c.Assert(err, IsNil)
|
|
c.Assert(f, NotNil)
|
|
count, err := evalBuiltinFunc(f, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
if count.IsNull() {
|
|
c.Assert(test.count, IsNil)
|
|
continue
|
|
}
|
|
sc := new(stmtctx.StatementContext)
|
|
sc.IgnoreTruncate = true
|
|
res, err := count.ToInt64(sc)
|
|
c.Assert(err, IsNil)
|
|
c.Assert(res, Equals, test.count)
|
|
}
|
|
}
|
|
|
|
func (s *testEvaluatorSuite) TestInFunc(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
fc := funcs[ast.In]
|
|
decimal1 := types.NewDecFromFloatForTest(123.121)
|
|
decimal2 := types.NewDecFromFloatForTest(123.122)
|
|
decimal3 := types.NewDecFromFloatForTest(123.123)
|
|
decimal4 := types.NewDecFromFloatForTest(123.124)
|
|
time1 := types.Time{Time: types.FromGoTime(time.Date(2017, 1, 1, 1, 1, 1, 1, time.UTC)), Fsp: 6, Type: mysql.TypeDatetime}
|
|
time2 := types.Time{Time: types.FromGoTime(time.Date(2017, 1, 2, 1, 1, 1, 1, time.UTC)), Fsp: 6, Type: mysql.TypeDatetime}
|
|
time3 := types.Time{Time: types.FromGoTime(time.Date(2017, 1, 3, 1, 1, 1, 1, time.UTC)), Fsp: 6, Type: mysql.TypeDatetime}
|
|
time4 := types.Time{Time: types.FromGoTime(time.Date(2017, 1, 4, 1, 1, 1, 1, time.UTC)), Fsp: 6, Type: mysql.TypeDatetime}
|
|
duration1 := types.Duration{Duration: time.Duration(12*time.Hour + 1*time.Minute + 1*time.Second)}
|
|
duration2 := types.Duration{Duration: time.Duration(12*time.Hour + 1*time.Minute)}
|
|
duration3 := types.Duration{Duration: time.Duration(12*time.Hour + 1*time.Second)}
|
|
duration4 := types.Duration{Duration: time.Duration(12 * time.Hour)}
|
|
json1 := json.CreateBinary("123")
|
|
json2 := json.CreateBinary("123.1")
|
|
json3 := json.CreateBinary("123.2")
|
|
json4 := json.CreateBinary("123.3")
|
|
testCases := []struct {
|
|
args []interface{}
|
|
res interface{}
|
|
}{
|
|
{[]interface{}{1, 1, 2, 3}, int64(1)},
|
|
{[]interface{}{1, 0, 2, 3}, int64(0)},
|
|
{[]interface{}{1, nil, 2, 3}, nil},
|
|
{[]interface{}{nil, nil, 2, 3}, nil},
|
|
{[]interface{}{uint64(0), 0, 2, 3}, int64(1)},
|
|
{[]interface{}{uint64(math.MaxUint64), uint64(math.MaxUint64), 2, 3}, int64(1)},
|
|
{[]interface{}{-1, uint64(math.MaxUint64), 2, 3}, int64(0)},
|
|
{[]interface{}{uint64(math.MaxUint64), -1, 2, 3}, int64(0)},
|
|
{[]interface{}{1, 0, 2, 3}, int64(0)},
|
|
{[]interface{}{1.1, 1.2, 1.3}, int64(0)},
|
|
{[]interface{}{1.1, 1.1, 1.2, 1.3}, int64(1)},
|
|
{[]interface{}{decimal1, decimal2, decimal3, decimal4}, int64(0)},
|
|
{[]interface{}{decimal1, decimal2, decimal3, decimal1}, int64(1)},
|
|
{[]interface{}{"1.1", "1.1", "1.2", "1.3"}, int64(1)},
|
|
{[]interface{}{"1.1", hack.Slice("1.1"), "1.2", "1.3"}, int64(1)},
|
|
{[]interface{}{hack.Slice("1.1"), "1.1", "1.2", "1.3"}, int64(1)},
|
|
{[]interface{}{time1, time2, time3, time1}, int64(1)},
|
|
{[]interface{}{time1, time2, time3, time4}, int64(0)},
|
|
{[]interface{}{duration1, duration2, duration3, duration4}, int64(0)},
|
|
{[]interface{}{duration1, duration2, duration1, duration4}, int64(1)},
|
|
{[]interface{}{json1, json2, json3, json4}, int64(0)},
|
|
{[]interface{}{json1, json1, json3, json4}, int64(1)},
|
|
}
|
|
for _, tc := range testCases {
|
|
fn, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(tc.args...)))
|
|
c.Assert(err, IsNil)
|
|
d, err := evalBuiltinFunc(fn, chunk.MutRowFromDatums(types.MakeDatums(tc.args...)).ToRow())
|
|
c.Assert(err, IsNil)
|
|
c.Assert(d.GetValue(), Equals, tc.res, Commentf("%v", types.MakeDatums(tc.args)))
|
|
}
|
|
}
|
|
|
|
func (s *testEvaluatorSuite) TestRowFunc(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
fc := funcs[ast.RowFunc]
|
|
_, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums([]interface{}{"1", 1.2, true, 120}...)))
|
|
c.Assert(err, IsNil)
|
|
}
|
|
|
|
func (s *testEvaluatorSuite) TestSetVar(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
fc := funcs[ast.SetVar]
|
|
testCases := []struct {
|
|
args []interface{}
|
|
res interface{}
|
|
}{
|
|
{[]interface{}{"a", "12"}, "12"},
|
|
{[]interface{}{"b", "34"}, "34"},
|
|
{[]interface{}{"c", nil}, ""},
|
|
{[]interface{}{"c", "ABC"}, "ABC"},
|
|
{[]interface{}{"c", "dEf"}, "dEf"},
|
|
}
|
|
for _, tc := range testCases {
|
|
fn, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(tc.args...)))
|
|
c.Assert(err, IsNil)
|
|
d, err := evalBuiltinFunc(fn, chunk.MutRowFromDatums(types.MakeDatums(tc.args...)).ToRow())
|
|
c.Assert(err, IsNil)
|
|
c.Assert(d.GetString(), Equals, tc.res)
|
|
if tc.args[1] != nil {
|
|
key, ok := tc.args[0].(string)
|
|
c.Assert(ok, Equals, true)
|
|
val, ok := tc.res.(string)
|
|
c.Assert(ok, Equals, true)
|
|
c.Assert(s.ctx.GetSessionVars().Users[key], Equals, val)
|
|
}
|
|
}
|
|
}
|
|
|
|
func (s *testEvaluatorSuite) TestGetVar(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
fc := funcs[ast.GetVar]
|
|
|
|
sessionVars := []struct {
|
|
key string
|
|
val string
|
|
}{
|
|
{"a", "中"},
|
|
{"b", "文字符chuan"},
|
|
{"c", ""},
|
|
}
|
|
for _, kv := range sessionVars {
|
|
s.ctx.GetSessionVars().Users[kv.key] = kv.val
|
|
}
|
|
|
|
testCases := []struct {
|
|
args []interface{}
|
|
res interface{}
|
|
}{
|
|
{[]interface{}{"a"}, "中"},
|
|
{[]interface{}{"b"}, "文字符chuan"},
|
|
{[]interface{}{"c"}, ""},
|
|
{[]interface{}{"d"}, ""},
|
|
}
|
|
for _, tc := range testCases {
|
|
fn, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums(tc.args...)))
|
|
c.Assert(err, IsNil)
|
|
d, err := evalBuiltinFunc(fn, chunk.MutRowFromDatums(types.MakeDatums(tc.args...)).ToRow())
|
|
c.Assert(err, IsNil)
|
|
c.Assert(d.GetString(), Equals, tc.res)
|
|
}
|
|
}
|
|
|
|
func (s *testEvaluatorSuite) TestValues(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
|
|
origin := s.ctx.GetSessionVars().StmtCtx.InInsertStmt
|
|
s.ctx.GetSessionVars().StmtCtx.InInsertStmt = false
|
|
defer func() {
|
|
s.ctx.GetSessionVars().StmtCtx.InInsertStmt = origin
|
|
}()
|
|
|
|
fc := &valuesFunctionClass{baseFunctionClass{ast.Values, 0, 0}, 1, types.NewFieldType(mysql.TypeVarchar)}
|
|
_, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums("")))
|
|
c.Assert(err, ErrorMatches, "*Incorrect parameter count in the call to native function 'values'")
|
|
|
|
sig, err := fc.getFunction(s.ctx, s.datumsToConstants(types.MakeDatums()))
|
|
c.Assert(err, IsNil)
|
|
|
|
ret, err := evalBuiltinFunc(sig, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
c.Assert(ret.IsNull(), IsTrue)
|
|
|
|
s.ctx.GetSessionVars().CurrInsertValues = chunk.MutRowFromDatums(types.MakeDatums("1")).ToRow()
|
|
ret, err = evalBuiltinFunc(sig, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
c.Assert(ret.IsNull(), IsTrue)
|
|
|
|
currInsertValues := types.MakeDatums("1", "2")
|
|
s.ctx.GetSessionVars().StmtCtx.InInsertStmt = true
|
|
s.ctx.GetSessionVars().CurrInsertValues = chunk.MutRowFromDatums(currInsertValues).ToRow()
|
|
ret, err = evalBuiltinFunc(sig, chunk.Row{})
|
|
c.Assert(err, IsNil)
|
|
|
|
cmp, err := ret.CompareDatum(nil, &currInsertValues[1])
|
|
c.Assert(err, IsNil)
|
|
c.Assert(cmp, Equals, 0)
|
|
}
|
|
|
|
func (s *testEvaluatorSuite) TestSetVarFromColumn(c *C) {
|
|
defer testleak.AfterTest(c)()
|
|
|
|
// Construct arguments.
|
|
argVarName := &Constant{
|
|
Value: types.NewStringDatum("a"),
|
|
RetType: &types.FieldType{Tp: mysql.TypeVarString, Flen: 20},
|
|
}
|
|
argCol := &Column{
|
|
RetType: &types.FieldType{Tp: mysql.TypeVarString, Flen: 20},
|
|
Index: 0,
|
|
}
|
|
|
|
// Construct SetVar function.
|
|
funcSetVar, err := NewFunction(
|
|
s.ctx,
|
|
ast.SetVar,
|
|
&types.FieldType{Tp: mysql.TypeVarString, Flen: 20},
|
|
[]Expression{argVarName, argCol}...,
|
|
)
|
|
c.Assert(err, IsNil)
|
|
|
|
// Construct input and output Chunks.
|
|
inputChunk := chunk.NewChunkWithCapacity([]*types.FieldType{argCol.RetType}, 1)
|
|
inputChunk.AppendString(0, "a")
|
|
outputChunk := chunk.NewChunkWithCapacity([]*types.FieldType{argCol.RetType}, 1)
|
|
|
|
// Evaluate the SetVar function.
|
|
err = evalOneCell(s.ctx, funcSetVar, inputChunk.GetRow(0), outputChunk, 0)
|
|
c.Assert(err, IsNil)
|
|
c.Assert(outputChunk.GetRow(0).GetString(0), Equals, "a")
|
|
|
|
// Change the content of the underlying Chunk.
|
|
inputChunk.Reset()
|
|
inputChunk.AppendString(0, "b")
|
|
|
|
// Check whether the user variable changed.
|
|
sessionVars := s.ctx.GetSessionVars()
|
|
sessionVars.UsersLock.RLock()
|
|
defer sessionVars.UsersLock.RUnlock()
|
|
c.Assert(sessionVars.Users["a"], Equals, "a")
|
|
}
|