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@ -26,115 +26,66 @@ SELECT
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## makeDate
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Creates a [Date](../../sql-reference/data-types/date.md) from either one of the following sets of arguments:
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Creates a [Date](../../sql-reference/data-types/date.md)
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- from a year, month and day argument, or
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- from a year and day of year argument.
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- a year, month, and day.
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- a year and day of year.
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**Syntax**
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### Syntax
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Using a year, month, and day:
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```sql
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makeDate(year, month, day)
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``` sql
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makeDate(year, month, day);
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makeDate(year, day_of_year);
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```
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Using a year and day of year:
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Alias:
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- `MAKEDATE(year, month, day);`
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- `MAKEDATE(year, day_of_year);`
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```sql
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makeDate(year, day_of_year)
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```
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### Arguments
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**Arguments**
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- `year` — Year. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md).
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- `month` — Month. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md).
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- `day` — Day. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md).
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- `day_of_year` — Day of the year. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md).
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### Returned values
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**Returned value**
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A date created from the arguments.
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- A date created from the arguments.
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Type: [Date](../../sql-reference/data-types/date.md).
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### Examples
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**Example**
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Create a Date from a year, month and day:
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```sql
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``` sql
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SELECT makeDate(2023, 2, 28) AS Date;
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```
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```response
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2023-02-28
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Result:
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``` text
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┌───────date─┐
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│ 2023-02-28 │
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└────────────┘
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```
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Create a Date from a year and day of year:
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Create a Date from a year and day of year argument:
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``` sql
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SELECT makeDate(2023, 42) AS Date;
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```
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```response
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2023-02-11
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```
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Result:
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``` text
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┌───────date─┐
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│ 2023-02-11 │
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└────────────┘
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```
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## makeDate32
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Creates a date of type [Date32](../../sql-reference/data-types/date32.md) from either one of the following sets of arguments:
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- a year, month, and day.
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- a year and day of year.
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### Syntax
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Using a year, month, and day:
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```sql
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makeDate32(year, month, day)
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```
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Using a year and day of year:
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```sql
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makeDate32(year, day_of_year)
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```
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### Arguments
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- `year` — Year. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md).
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- `month` — Month. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md).
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- `day` — Day. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md).
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- `day_of_year` — Day of the year. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md).
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### Returned values
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A date created from the arguments.
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Type: [Date32](../../sql-reference/data-types/date32.md).
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### Examples
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Create a date from a year, month, and day:
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```sql
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SELECT makeDate32(2024, 1, 1);
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```
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```response
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2024-01-01
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```
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Create a Date from a year and day of year:
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``` sql
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SELECT makeDate32(2024, 100);
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```
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```response
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2024-04-09
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```
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Like [makeDate](#makeDate) but produces a [Date32](../../sql-reference/data-types/date32.md).
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## makeDateTime
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@ -178,38 +129,12 @@ Result:
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## makeDateTime64
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Create a [DateTime64](../../sql-reference/data-types/datetime64.md) data type value from its components (year, month, day, hour, minute, second, and optionally, subsecond precision).
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The DateTime64 data type stores both the date and time components in a single 64-bit integer value. The precision of the time component is configurable, allowing you to store time values with subsecond precision up to nanoseconds.
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Like [makeDateTime](#makedatetime) but produces a [DateTime64](../../sql-reference/data-types/datetime64.md).
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**Syntax**
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```sql
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makeDateTime64(year, month, day, hour, minute, second[, fraction[, precision]])
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```
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**Arguments**
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- `year` — [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md). The year component (0-9999).
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- `month` — Month. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md). The month component (1-12).
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- `day` — Day. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md). The day component (1-31).
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- `hour` — Hour. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md). The hour component (0-23).
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- `minute` — Minute. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md). The minute component (0-59).
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- `second` — Second. [Integer](../../sql-reference/data-types/int-uint.md), [Float](../../sql-reference/data-types/float.md) or [Decimal](../../sql-reference/data-types/decimal.md). The second component (0-59).
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- `subsecond_precision` (optional) [Integer](../../sql-reference/data-types/int-uint.md): The precision of the subsecond component (0-9, where 0 means no subsecond precision, and 9 means nanosecond precision).
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**Returned value**
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A date and time element of type [DateTime64](../../sql-reference/data-types/datetime64.md) with created from the supplied arguments.
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**Example**
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``` sql
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SELECT makeDateTime64(2023, 5, 15, 10, 30, 45, 779, 5);
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```
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```response
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2023-05-15 10:30:45.00779
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makeDateTime64(year, month, day, hour, minute, second[, fraction[, precision[, timezone]]])
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```
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## timestamp
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@ -1866,7 +1866,7 @@ As you can see, `runningAccumulate` merges states for each group of rows separat
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## joinGet
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Allows you to extract data from a specific column in a Join table, similar to how you would access a value from a dictionary.
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The function lets you extract data from the table the same way as from a [dictionary](../../sql-reference/dictionaries/index.md).
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Gets the data from [Join](../../engines/table-engines/special/join.md#creating-a-table) tables using the specified join key.
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@ -1927,69 +1927,6 @@ Result:
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└──────────────────────────────────────────────────┘
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```
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## joinGetOrNull
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Allows you to extract data from a specific column in a Join table, similar to how you would access a value from a dictionary.
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Gets the data from [Join](../../engines/table-engines/special/join.md#creating-a-table) tables using the specified join key.
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Only supports tables created with the `ENGINE = Join(ANY, LEFT, <join_keys>)` statement.
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### Syntax
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```sql
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joinGet(join_storage_table_name, `value_column`, join_keys)
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```
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### Parameters
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- `join_storage_table_name` — an [identifier](../../sql-reference/syntax.md#syntax-identifiers) indicating where the search is performed. The identifier is searched in the default database (see setting `default_database` in the config file). To override the default database, use `USE db_name` or specify the database and the table through the separator `db_name.db_table` as in the example.
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- `value_column` — name of the column of the table that contains required data.
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- `join_keys` — list of keys.
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### Returned value
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Returns a list of values corresponded to list of keys.
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If certain does not exist in source table then `0` or `null` will be returned based on [join_use_nulls](../../operations/settings/settings.md#join_use_nulls) setting.
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More info about `join_use_nulls` in [Join operation](../../engines/table-engines/special/join.md).
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**Example**
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Input table:
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``` sql
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CREATE DATABASE db_test
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CREATE TABLE db_test.id_val(`id` UInt32, `val` UInt32) ENGINE = Join(ANY, LEFT, id) SETTINGS join_use_nulls = 1
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INSERT INTO db_test.id_val VALUES (1,11)(2,12)(4,13)
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```
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``` text
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┌─id─┬─val─┐
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│ 4 │ 13 │
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│ 2 │ 12 │
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│ 1 │ 11 │
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└────┴─────┘
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```
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Query:
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``` sql
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SELECT joinGet(db_test.id_val, 'val', toUInt32(number)) from numbers(4) SETTINGS join_use_nulls = 1
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```
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Result:
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``` text
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┌─joinGet(db_test.id_val, 'val', toUInt32(number))─┐
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│ 0 │
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│ 11 │
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│ 12 │
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│ 0 │
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└──────────────────────────────────────────────────┘
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```
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## catboostEvaluate(path_to_model, feature_1, feature_2, …, feature_n)
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:::note
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