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Print number tips in case of LowCardinality and Nullable

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This commit is contained in:
Alexey Milovidov 2024-05-18 06:42:59 +02:00
parent a2d9a32652
commit cde1b82ebd
5 changed files with 117 additions and 1 deletions
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33
src/Columns/ColumnNullable.cpp
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@ -22,6 +22,7 @@ namespace ErrorCodes
extern const int LOGICAL_ERROR;
extern const int ILLEGAL_COLUMN;
extern const int NOT_IMPLEMENTED;
extern const int BAD_ARGUMENTS;
}
@ -116,6 +117,38 @@ void ColumnNullable::get(size_t n, Field & res) const
getNestedColumn().get(n, res);
}
Float64 ColumnNullable::getFloat64(size_t n) const
{
if (isNullAt(n))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "The value of {} at {} is NULL while calling method getFloat64", getName(), n);
else
return getNestedColumn().getFloat64(n);
}
Float32 ColumnNullable::getFloat32(size_t n) const
{
if (isNullAt(n))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "The value of {} at {} is NULL while calling method getFloat32", getName(), n);
else
return getNestedColumn().getFloat32(n);
}
UInt64 ColumnNullable::getUInt(size_t n) const
{
if (isNullAt(n))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "The value of {} at {} is NULL while calling method getUInt", getName(), n);
else
return getNestedColumn().getUInt(n);
}
Int64 ColumnNullable::getInt(size_t n) const
{
if (isNullAt(n))
throw Exception(ErrorCodes::BAD_ARGUMENTS, "The value of {} at {} is NULL while calling method getInt", getName(), n);
else
return getNestedColumn().getInt(n);
}
void ColumnNullable::insertData(const char * pos, size_t length)
{
if (pos == nullptr)

4
src/Columns/ColumnNullable.h
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@ -57,6 +57,10 @@ public:
void get(size_t n, Field & res) const override;
bool getBool(size_t n) const override { return isNullAt(n) ? false : nested_column->getBool(n); }
UInt64 get64(size_t n) const override { return nested_column->get64(n); }
Float64 getFloat64(size_t n) const override;
Float32 getFloat32(size_t n) const override;
UInt64 getUInt(size_t n) const override;
Int64 getInt(size_t n) const override;
bool isDefaultAt(size_t n) const override { return isNullAt(n); }
StringRef getDataAt(size_t) const override;
/// Will insert null value if pos=nullptr

14
src/Processors/Formats/Impl/PrettyBlockOutputFormat.cpp
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@ -7,6 +7,8 @@
#include <Common/UTF8Helpers.h>
#include <Common/PODArray.h>
#include <Common/formatReadable.h>
#include <DataTypes/DataTypeLowCardinality.h>
#include <DataTypes/DataTypeNullable.h>
namespace DB
@ -16,7 +18,14 @@ PrettyBlockOutputFormat::PrettyBlockOutputFormat(
WriteBuffer & out_, const Block & header_, const FormatSettings & format_settings_, bool mono_block_, bool color_)
: IOutputFormat(header_, out_), format_settings(format_settings_), serializations(header_.getSerializations()), color(color_), mono_block(mono_block_)
{
readable_number_tip = header_.getColumns().size() == 1 && WhichDataType(header_.getDataTypes()[0]->getTypeId()).isNumber();
/// Decide whether we should print a tip near the single number value in the result.
if (header_.getColumns().size() == 1)
{
/// Check if it is a numeric type, possible wrapped by Nullable or LowCardinality.
DataTypePtr type = removeNullable(recursiveRemoveLowCardinality(header_.getDataTypes().at(0)));
if (isNumber(type))
readable_number_tip = true;
}
}
@ -497,6 +506,9 @@ void PrettyBlockOutputFormat::writeReadableNumberTip(const Chunk & chunk)
if (!is_single_number)
return;
if (columns[0]->isNullAt(0))
return;
auto value = columns[0]->getFloat64(0);
auto threshold = format_settings.pretty.output_format_pretty_single_large_number_tip_threshold;

43
tests/queries/0_stateless/03156_nullable_number_tips.reference Normal file
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@ -0,0 +1,43 @@
┌─────────x─┐
1. │ 123456789 │ -- 123.46 million
└───────────┘
┌─────────x─┐
1. │ 123456789 │ -- 123.46 million
└───────────┘
┌─────────x─┐
1. │ 123456789 │ -- 123.46 million
└───────────┘
┌─────────x─┐
1. │ 123456789 │ -- 123.46 million
└───────────┘
┌─────────x─┐
1. │ 123456789 │ -- 123.46 million
└───────────┘
Nullable(UInt64), Nullable(size = 10, UInt64(size = 10), UInt8(size = 10))
┏━━━━━━━━━━━━┓
┃ x ┃
┡━━━━━━━━━━━━┩
1. │ 1111111101 │ -- 1.11 billion
└────────────┘
┏━━━━━━━━━━━┓
┃ x ┃
┡━━━━━━━━━━━┩
1. │ 123456789 │ -- 123.46 million
└───────────┘
x
1. ᴺᵁᴸᴸ
UInt64, Sparse(size = 10, UInt64(size = 6), UInt64(size = 5))
┏━━━━━━━━━━━━┓
┃ x ┃
┡━━━━━━━━━━━━┩
1. │ 1111111101 │ -- 1.11 billion
└────────────┘
┏━━━┓
┃ x ┃
┡━━━┩
1. │ 0 │
└───┘
x
1. 0

24
tests/queries/0_stateless/03156_nullable_number_tips.sql Normal file
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@ -0,0 +1,24 @@
SELECT 123456789 AS x FORMAT PrettyCompact;
SELECT toNullable(123456789) AS x FORMAT PrettyCompact;
SELECT toLowCardinality(toNullable(123456789)) AS x FORMAT PrettyCompact;
SELECT toNullable(toLowCardinality(123456789)) AS x FORMAT PrettyCompact;
SELECT toLowCardinality(123456789) AS x FORMAT PrettyCompact;
CREATE TEMPORARY TABLE test (x Nullable(UInt64), PRIMARY KEY ()) ENGINE = MergeTree SETTINGS ratio_of_defaults_for_sparse_serialization = 0;
INSERT INTO test SELECT number % 2 ? number * 123456789 : NULL FROM numbers(10);
SELECT DISTINCT dumpColumnStructure(*) FROM test;
SELECT * FROM test ORDER BY ALL DESC NULLS LAST LIMIT 1 FORMAT PRETTY;
SELECT * FROM test ORDER BY ALL ASC NULLS LAST LIMIT 1 FORMAT PRETTY;
SELECT * FROM test ORDER BY ALL ASC NULLS FIRST LIMIT 1 FORMAT PrettySpace;
DROP TEMPORARY TABLE test;
CREATE TEMPORARY TABLE test (x UInt64, PRIMARY KEY ()) ENGINE = MergeTree SETTINGS ratio_of_defaults_for_sparse_serialization = 0;
INSERT INTO test SELECT number % 2 ? number * 123456789 : NULL FROM numbers(10);
SELECT DISTINCT dumpColumnStructure(*) FROM test;
SELECT * FROM test ORDER BY ALL DESC NULLS LAST LIMIT 1 FORMAT PRETTY;
SELECT * FROM test ORDER BY ALL ASC NULLS LAST LIMIT 1 FORMAT PRETTY;
SELECT * FROM test ORDER BY ALL ASC NULLS FIRST LIMIT 1 FORMAT PrettySpace;