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Fixed code; added a test

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This commit is contained in:
Alexey Milovidov 2020-05-11 03:16:50 +03:00
parent 2438a510b0
commit 49e57c555d
4 changed files with 11 additions and 8 deletions
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14
src/AggregateFunctions/AggregateFunctionStatistics.h
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@ -153,7 +153,7 @@ public:
*/ */
struct AggregateFunctionVarSampImpl struct AggregateFunctionVarSampImpl
{ {
static constexpr auto name = "varSamp"; static constexpr auto name = "varSampStable";
static inline Float64 apply(Float64 m2, UInt64 count) static inline Float64 apply(Float64 m2, UInt64 count)
{ {
@ -168,7 +168,7 @@ struct AggregateFunctionVarSampImpl
*/ */
struct AggregateFunctionStdDevSampImpl struct AggregateFunctionStdDevSampImpl
{ {
static constexpr auto name = "stddevSamp"; static constexpr auto name = "stddevSampStable";
static inline Float64 apply(Float64 m2, UInt64 count) static inline Float64 apply(Float64 m2, UInt64 count)
{ {
@ -180,7 +180,7 @@ struct AggregateFunctionStdDevSampImpl
*/ */
struct AggregateFunctionVarPopImpl struct AggregateFunctionVarPopImpl
{ {
static constexpr auto name = "varPop"; static constexpr auto name = "varPopStable";
static inline Float64 apply(Float64 m2, UInt64 count) static inline Float64 apply(Float64 m2, UInt64 count)
{ {
@ -197,7 +197,7 @@ struct AggregateFunctionVarPopImpl
*/ */
struct AggregateFunctionStdDevPopImpl struct AggregateFunctionStdDevPopImpl
{ {
static constexpr auto name = "stddevPop"; static constexpr auto name = "stddevPopStable";
static inline Float64 apply(Float64 m2, UInt64 count) static inline Float64 apply(Float64 m2, UInt64 count)
{ {
@ -405,7 +405,7 @@ public:
*/ */
struct AggregateFunctionCovarSampImpl struct AggregateFunctionCovarSampImpl
{ {
static constexpr auto name = "covarSamp"; static constexpr auto name = "covarSampStable";
static inline Float64 apply(Float64 co_moment, UInt64 count) static inline Float64 apply(Float64 co_moment, UInt64 count)
{ {
@ -420,7 +420,7 @@ struct AggregateFunctionCovarSampImpl
*/ */
struct AggregateFunctionCovarPopImpl struct AggregateFunctionCovarPopImpl
{ {
static constexpr auto name = "covarPop"; static constexpr auto name = "covarPopStable";
static inline Float64 apply(Float64 co_moment, UInt64 count) static inline Float64 apply(Float64 co_moment, UInt64 count)
{ {
@ -437,7 +437,7 @@ struct AggregateFunctionCovarPopImpl
*/ */
struct AggregateFunctionCorrImpl struct AggregateFunctionCorrImpl
{ {
static constexpr auto name = "corr"; static constexpr auto name = "corrStable";
static inline Float64 apply(Float64 co_moment, Float64 left_m2, Float64 right_m2, UInt64 count) static inline Float64 apply(Float64 co_moment, Float64 left_m2, Float64 right_m2, UInt64 count)
{ {

3
src/Functions/randomString.cpp
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@ -4,6 +4,7 @@
#include <Functions/FunctionHelpers.h> #include <Functions/FunctionHelpers.h>
#include <Functions/IFunctionImpl.h> #include <Functions/IFunctionImpl.h>
#include <Common/thread_local_rng.h> #include <Common/thread_local_rng.h>
#include <common/unaligned.h>
namespace DB namespace DB
@ -78,7 +79,7 @@ public:
pos += sizeof(UInt64)) // We have padding in column buffers that we can overwrite. pos += sizeof(UInt64)) // We have padding in column buffers that we can overwrite.
{ {
UInt64 rand = thread_local_rng(); UInt64 rand = thread_local_rng();
*reinterpret_cast<UInt64 *>(data_to_ptr + pos) = rand; unalignedStore<UInt64>(data_to_ptr + pos, rand);
} }
data_to[offset + length] = 0; data_to[offset + length] = 0;

1
tests/queries/0_stateless/01276_random_string.reference Normal file
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@ -0,0 +1 @@
1

1
tests/queries/0_stateless/01276_random_string.sql Normal file
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@ -0,0 +1 @@
SELECT DISTINCT c > 30000 FROM (SELECT arrayJoin(arrayMap(x -> reinterpretAsUInt8(substring(randomString(100), x + 1, 1)), range(100))) AS byte, count() AS c FROM numbers(100000) GROUP BY byte ORDER BY byte);