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Merge pull request #6374 from dimarub2000/fix_toFloat_monotonicity

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toFloat() monotonicity fixed
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alexey-milovidov 2019-08-08 19:11:38 +03:00 committed by GitHub
commit 80e68a803b
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3 changed files with 44 additions and 15 deletions
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30
dbms/src/Functions/FunctionsConversion.h
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@ -1183,7 +1183,7 @@ struct UnknownMonotonicity
};
template <typename T>
struct ToIntMonotonicity
struct ToNumberMonotonicity
{
static bool has() { return true; }
@ -1358,21 +1358,21 @@ struct NameToFloat32 { static constexpr auto name = "toFloat32"; };
struct NameToFloat64 { static constexpr auto name = "toFloat64"; };
struct NameToUUID { static constexpr auto name = "toUUID"; };
using FunctionToUInt8 = FunctionConvert<DataTypeUInt8, NameToUInt8, ToIntMonotonicity<UInt8>>;
using FunctionToUInt16 = FunctionConvert<DataTypeUInt16, NameToUInt16, ToIntMonotonicity<UInt16>>;
using FunctionToUInt32 = FunctionConvert<DataTypeUInt32, NameToUInt32, ToIntMonotonicity<UInt32>>;
using FunctionToUInt64 = FunctionConvert<DataTypeUInt64, NameToUInt64, ToIntMonotonicity<UInt64>>;
using FunctionToInt8 = FunctionConvert<DataTypeInt8, NameToInt8, ToIntMonotonicity<Int8>>;
using FunctionToInt16 = FunctionConvert<DataTypeInt16, NameToInt16, ToIntMonotonicity<Int16>>;
using FunctionToInt32 = FunctionConvert<DataTypeInt32, NameToInt32, ToIntMonotonicity<Int32>>;
using FunctionToInt64 = FunctionConvert<DataTypeInt64, NameToInt64, ToIntMonotonicity<Int64>>;
using FunctionToFloat32 = FunctionConvert<DataTypeFloat32, NameToFloat32, PositiveMonotonicity>;
using FunctionToFloat64 = FunctionConvert<DataTypeFloat64, NameToFloat64, PositiveMonotonicity>;
using FunctionToDate = FunctionConvert<DataTypeDate, NameToDate, ToIntMonotonicity<UInt16>>;
using FunctionToDateTime = FunctionConvert<DataTypeDateTime, NameToDateTime, ToIntMonotonicity<UInt32>>;
using FunctionToUUID = FunctionConvert<DataTypeUUID, NameToUUID, ToIntMonotonicity<UInt128>>;
using FunctionToUInt8 = FunctionConvert<DataTypeUInt8, NameToUInt8, ToNumberMonotonicity<UInt8>>;
using FunctionToUInt16 = FunctionConvert<DataTypeUInt16, NameToUInt16, ToNumberMonotonicity<UInt16>>;
using FunctionToUInt32 = FunctionConvert<DataTypeUInt32, NameToUInt32, ToNumberMonotonicity<UInt32>>;
using FunctionToUInt64 = FunctionConvert<DataTypeUInt64, NameToUInt64, ToNumberMonotonicity<UInt64>>;
using FunctionToInt8 = FunctionConvert<DataTypeInt8, NameToInt8, ToNumberMonotonicity<Int8>>;
using FunctionToInt16 = FunctionConvert<DataTypeInt16, NameToInt16, ToNumberMonotonicity<Int16>>;
using FunctionToInt32 = FunctionConvert<DataTypeInt32, NameToInt32, ToNumberMonotonicity<Int32>>;
using FunctionToInt64 = FunctionConvert<DataTypeInt64, NameToInt64, ToNumberMonotonicity<Int64>>;
using FunctionToFloat32 = FunctionConvert<DataTypeFloat32, NameToFloat32, ToNumberMonotonicity<Float32>>;
using FunctionToFloat64 = FunctionConvert<DataTypeFloat64, NameToFloat64, ToNumberMonotonicity<Float64>>;
using FunctionToDate = FunctionConvert<DataTypeDate, NameToDate, ToNumberMonotonicity<UInt16>>;
using FunctionToDateTime = FunctionConvert<DataTypeDateTime, NameToDateTime, ToNumberMonotonicity<UInt32>>;
using FunctionToUUID = FunctionConvert<DataTypeUUID, NameToUUID, ToNumberMonotonicity<UInt128>>;
using FunctionToString = FunctionConvert<DataTypeString, NameToString, ToStringMonotonicity>;
using FunctionToUnixTimestamp = FunctionConvert<DataTypeUInt32, NameToUnixTimestamp, ToIntMonotonicity<UInt32>>;
using FunctionToUnixTimestamp = FunctionConvert<DataTypeUInt32, NameToUnixTimestamp, ToNumberMonotonicity<UInt32>>;
using FunctionToDecimal32 = FunctionConvert<DataTypeDecimal<Decimal32>, NameToDecimal32, UnknownMonotonicity>;
using FunctionToDecimal64 = FunctionConvert<DataTypeDecimal<Decimal64>, NameToDecimal64, UnknownMonotonicity>;
using FunctionToDecimal128 = FunctionConvert<DataTypeDecimal<Decimal128>, NameToDecimal128, UnknownMonotonicity>;

6
dbms/tests/queries/0_stateless/00979_toFloat_monotonicity.reference Normal file
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@ -0,0 +1,6 @@
7777
7777
7777
7777
7777.000
7777.000

23
dbms/tests/queries/0_stateless/00979_toFloat_monotonicity.sql Normal file
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@ -0,0 +1,23 @@
DROP TABLE IF EXISTS test1;
DROP TABLE IF EXISTS test2;
DROP TABLE IF EXISTS test3;
CREATE TABLE test1 (n UInt64) ENGINE = MergeTree ORDER BY n SETTINGS index_granularity = 1;
CREATE TABLE test2 (s String) ENGINE = MergeTree ORDER BY s SETTINGS index_granularity = 1;
CREATE TABLE test3 (d Decimal(4, 3)) ENGINE = MergeTree ORDER BY d SETTINGS index_granularity = 1;
INSERT INTO test1 SELECT * FROM numbers(10000);
SELECT n FROM test1 WHERE toFloat64(n) = 7777.0 SETTINGS max_rows_to_read = 2;
SELECT n FROM test1 WHERE toFloat32(n) = 7777.0 SETTINGS max_rows_to_read = 2;
INSERT INTO test2 SELECT toString(number) FROM numbers(10000);
SELECT s FROM test2 WHERE toFloat64(s) = 7777.0;
SELECT s FROM test2 WHERE toFloat32(s) = 7777.0;
INSERT INTO test3 SELECT toDecimal64(number, 3) FROM numbers(10000);
SELECT d FROM test3 WHERE toFloat64(d) = 7777.0 SETTINGS max_rows_to_read = 2;
SELECT d FROM test3 WHERE toFloat32(d) = 7777.0 SETTINGS max_rows_to_read = 2;
DROP TABLE test1;
DROP TABLE test2;
DROP TABLE test3;