thevar1able/ClickHouse
1
0
Fork 0
mirror of https://github.com/ClickHouse/ClickHouse.git synced 2024-11-18 21:51:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'master' into exception_message_patterns4

Browse Source
This commit is contained in:
Alexander Tokmakov 2023-01-24 23:22:38 +01:00
commit dceeae995e
3 changed files with 39 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
docs/en/engines/table-engines/mergetree-family/invertedindexes.md
View File

@ -43,12 +43,12 @@ To use the index, no special functions or syntax are required. Typical string se
examples, consider:
```sql
SELECT * from tab WHERE s == 'Hello World;;
SELECT * from tab WHERE s == 'Hello World;
SELECT * from tab WHERE s IN (‘Hello’, ‘World’);
SELECT * from tab WHERE s LIKE ‘%Hello%’;
SELECT * from tab WHERE multiSearchAny(s, ‘Hello’, ‘World’);
SELECT * from tab WHERE hasToken(s, ‘Hello’);
SELECT * from tab WHERE multiSearchAll(s, [‘Hello’, ‘World’])
SELECT * from tab WHERE multiSearchAll(s, [‘Hello’, ‘World’]);
```
The inverted index also works on columns of type `Array(String)`, `Array(FixedString)`, `Map(String)` and `Map(String)`.

9
docs/en/sql-reference/functions/date-time-functions.md
View File

@ -529,6 +529,7 @@ SELECT toDate('2016-12-27') AS date, toYearWeek(date) AS yearWeek0, toYearWeek(d
Returns the `unit` component of the difference between `startdate` and `enddate`. The difference is calculated using a precision of 1 second.
E.g. the difference between `2021-12-29` and `2022-01-01` is 3 days for `day` unit, 0 months for `month` unit, 0 years for `year` unit.
For an alternative to `age`, see function `date\_diff`.
**Syntax**
@ -600,8 +601,12 @@ Result:
## date\_diff
Returns the count of the specified `unit` boundaries crossed between the `startdate` and `enddate`.
The difference is calculated using relative units, e.g. the difference between `2021-12-29` and `2022-01-01` is 3 days for day unit (see [toRelativeDayNum](#torelativedaynum)), 1 month for month unit (see [toRelativeMonthNum](#torelativemonthnum)), 1 year for year unit (see [toRelativeYearNum](#torelativeyearnum)).
Returns the count of the specified `unit` boundaries crossed between the `startdate` and the `enddate`.
The difference is calculated using relative units, e.g. the difference between `2021-12-29` and `2022-01-01` is 3 days for unit `day` (see [toRelativeDayNum](#torelativedaynum)), 1 month for unit `month` (see [toRelativeMonthNum](#torelativemonthnum)) and 1 year for unit `year` (see [toRelativeYearNum](#torelativeyearnum)).
If unit `week` was specified, `date\_diff` assumes that weeks start on Monday. Note that this behavior is different from that of function `toWeek()` in which weeks start by default on Sunday.
For an alternative to `date\_diff`, see function `age`.
**Syntax**

35
src/Functions/transform.cpp
View File

@ -859,7 +859,12 @@ private:
{
const auto * it = table.find(bit_cast<UInt64>(src[i]));
if (it)
memcpy(&dst[i], &it->getMapped(), sizeof(dst[i])); /// little endian.
{
if (std::endian::native == std::endian::little)
memcpy(&dst[i], &it->getMapped(), sizeof(dst[i]));
else
memcpy(&dst[i], reinterpret_cast<const char *>(&it->getMapped()) + sizeof(UInt64) - sizeof(dst[i]), sizeof(dst[i]));
}
else
dst[i] = dst_default;
}
@ -875,7 +880,12 @@ private:
{
const auto * it = table.find(bit_cast<UInt64>(src[i]));
if (it)
memcpy(&dst[i], &it->getMapped(), sizeof(dst[i])); /// little endian.
{
if (std::endian::native == std::endian::little)
memcpy(&dst[i], &it->getMapped(), sizeof(dst[i]));
else
memcpy(&dst[i], reinterpret_cast<const char *>(&it->getMapped()) + sizeof(UInt64) - sizeof(dst[i]), sizeof(dst[i]));
}
else if constexpr (is_decimal<U>)
dst[i] = static_cast<typename U::NativeType>(dst_default[i]);
else
@ -893,7 +903,12 @@ private:
{
const auto * it = table.find(bit_cast<UInt64>(src[i]));
if (it)
memcpy(&dst[i], &it->getMapped(), sizeof(dst[i]));
{
if (std::endian::native == std::endian::little)
memcpy(&dst[i], &it->getMapped(), sizeof(dst[i]));
else
memcpy(&dst[i], reinterpret_cast<const char *>(&it->getMapped()) + sizeof(UInt64) - sizeof(dst[i]), sizeof(dst[i]));
}
else
dst[i] = src[i];
}
@ -964,7 +979,12 @@ private:
current_src_offset = src_offsets[i];
const auto * it = table.find(ref);
if (it)
memcpy(&dst[i], &it->getMapped(), sizeof(dst[i]));
{
if (std::endian::native == std::endian::little)
memcpy(&dst[i], &it->getMapped(), sizeof(dst[i]));
else
memcpy(&dst[i], reinterpret_cast<const char *>(&it->getMapped()) + sizeof(UInt64) - sizeof(dst[i]), sizeof(dst[i]));
}
else
dst[i] = dst_default;
}
@ -985,7 +1005,12 @@ private:
current_src_offset = src_offsets[i];
const auto * it = table.find(ref);
if (it)
memcpy(&dst[i], &it->getMapped(), sizeof(dst[i]));
{
if (std::endian::native == std::endian::little)
memcpy(&dst[i], &it->getMapped(), sizeof(dst[i]));
else
memcpy(&dst[i], reinterpret_cast<const char *>(&it->getMapped()) + sizeof(UInt64) - sizeof(dst[i]), sizeof(dst[i]));
}
else if constexpr (is_decimal<U>)
dst[i] = static_cast<typename U::NativeType>(dst_default[i]);
else