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expression, cmd: let crc32() support gbk #30900

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merged 4 commits into from
Dec 21, 2021
Merged

expression, cmd: let crc32() support gbk #30900

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1335301
expression, cmd: let crc32() support gbk
Defined2014 Dec 21, 2021
f36956b
move ast.CRC32 to math
Defined2014 Dec 21, 2021
aa9a823
Merge branch 'master' into crc32
Defined2014 Dec 21, 2021
5862f1b
Merge branch 'master' into crc32
ti-chi-bot Dec 21, 2021
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11 changes: 11 additions & 0 deletions cmd/explaintest/r/new_character_set_builtin.result
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Original file line number Diff line number Diff line change
Expand Up @@ -523,3 +523,14 @@ select hex(aes_encrypt(a, '123')), hex(aes_encrypt(b, '123')), hex(aes_encrypt(c
hex(aes_encrypt(a, '123')) hex(aes_encrypt(b, '123')) hex(aes_encrypt(c, '123'))
C54279F381B0710E145E94106F03C94C 7A747EC6F1906276D036B1F3CE27BAAB A0E5E01289017B8A3691CCFBDE81A59ED4A9D5BF50A298D41287E395CDDCAD56
set @@tidb_enable_vectorized_expression = false;
drop table if exists t;
create table t (a char(20) charset utf8mb4, b char(20) charset gbk, c binary(20));
insert into t values ('一二三', '一二三', '一二三');
select crc32(a), crc32(b), crc32(c) from t;
crc32(a) crc32(b) crc32(c)
1785250883 3461331449 4092198678
set @@tidb_enable_vectorized_expression = true;
select crc32(a), crc32(b), crc32(c) from t;
crc32(a) crc32(b) crc32(c)
1785250883 3461331449 4092198678
set @@tidb_enable_vectorized_expression = false;
9 changes: 9 additions & 0 deletions cmd/explaintest/t/new_character_set_builtin.test
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Expand Up @@ -239,3 +239,12 @@ select hex(aes_encrypt(a, '123', '1234567890123456')), hex(aes_encrypt(b, '123',
set @@block_encryption_mode='aes-128-ecb';
select hex(aes_encrypt(a, '123')), hex(aes_encrypt(b, '123')), hex(aes_encrypt(c, '123')) from t;
set @@tidb_enable_vectorized_expression = false;

-- test for builtin crc32()
drop table if exists t;
create table t (a char(20) charset utf8mb4, b char(20) charset gbk, c binary(20));
insert into t values ('一二三', '一二三', '一二三');
select crc32(a), crc32(b), crc32(c) from t;
set @@tidb_enable_vectorized_expression = true;
select crc32(a), crc32(b), crc32(c) from t;
set @@tidb_enable_vectorized_expression = false;
2 changes: 2 additions & 0 deletions expression/builtin_convert_charset.go
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Expand Up @@ -287,6 +287,8 @@ var convertActionMap = map[funcProp][]string{
ast.Like, ast.Strcmp,
/* regex */
ast.Regexp,
/* math */
ast.CRC32,
},
}

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43 changes: 26 additions & 17 deletions expression/builtin_math_test.go
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Expand Up @@ -23,6 +23,7 @@ import (
"github.com/pingcap/tidb/parser/ast"
"github.com/pingcap/tidb/parser/charset"
"github.com/pingcap/tidb/parser/mysql"
"github.com/pingcap/tidb/sessionctx/variable"
"github.com/pingcap/tidb/testkit/trequire"
"github.com/pingcap/tidb/types"
"github.com/pingcap/tidb/util/chunk"
Expand Down Expand Up @@ -531,27 +532,35 @@ func TestTruncate(t *testing.T) {
func TestCRC32(t *testing.T) {
ctx := createContext(t)
tbl := []struct {
Arg []interface{}
Ret interface{}
input []interface{}
chs string
result int64
isNull bool
}{
{[]interface{}{nil}, nil},
{[]interface{}{""}, 0},
{[]interface{}{-1}, 808273962},
{[]interface{}{"-1"}, 808273962},
{[]interface{}{"mysql"}, 2501908538},
{[]interface{}{"MySQL"}, 3259397556},
{[]interface{}{"hello"}, 907060870},
{[]interface{}{nil}, "utf8", 0, true},
{[]interface{}{""}, "utf8", 0, false},
{[]interface{}{-1}, "utf8", 808273962, false},
{[]interface{}{"-1"}, "utf8", 808273962, false},
{[]interface{}{"mysql"}, "utf8", 2501908538, false},
{[]interface{}{"MySQL"}, "utf8", 3259397556, false},
{[]interface{}{"hello"}, "utf8", 907060870, false},
{[]interface{}{"一二三"}, "utf8", 1785250883, false},
{[]interface{}{"一"}, "utf8", 2416838398, false},
{[]interface{}{"一二三"}, "gbk", 3461331449, false},
{[]interface{}{"一"}, "gbk", 2925846374, false},
}

Dtbl := tblToDtbl(tbl)

for _, tt := range Dtbl {
fc := funcs[ast.CRC32]
f, err := fc.getFunction(ctx, datumsToConstants(tt["Arg"]))
for _, c := range tbl {
err := ctx.GetSessionVars().SetSystemVar(variable.CharacterSetConnection, c.chs)
require.NoError(t, err)
v, err := evalBuiltinFunc(f, chunk.Row{})
f, err := newFunctionForTest(ctx, ast.CRC32, primitiveValsToConstants(ctx, c.input)...)
require.NoError(t, err)
trequire.DatumEqual(t, tt["Ret"][0], v)
d, err := f.Eval(chunk.Row{})
require.NoError(t, err)
if c.isNull {
require.True(t, d.IsNull())
} else {
require.Equal(t, c.result, d.GetInt64())
}
}
}

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