update argument types and fix style

docs/en/sql-reference/functions/type-conversion-functions.md

@@ -4878,7 +4878,7 @@ toIntervalYear(n)
 
 **Arguments**
 
-- `n` — Number of years. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of years. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 
@@ -4915,7 +4915,7 @@ toIntervalQuarter(n)
 
 **Arguments**
 
-- `n` — Number of quarters. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of quarters. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 
@@ -4952,7 +4952,7 @@ toIntervalMonth(n)
 
 **Arguments**
 
-- `n` — Number of months. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of months. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 
@@ -4989,7 +4989,7 @@ toIntervalWeek(n)
 
 **Arguments**
 
-- `n` — Number of weeks. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of weeks. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 
@@ -5026,7 +5026,7 @@ toIntervalDay(n)
 
 **Arguments**
 
-- `n` — Number of days. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of days. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 
@@ -5063,7 +5063,7 @@ toIntervalHour(n)
 
 **Arguments**
 
-- `n` — Number of hours. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of hours. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 
@@ -5100,7 +5100,7 @@ toIntervalMinute(n)
 
 **Arguments**
 
-- `n` — Number of minutes. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of minutes. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 
@@ -5137,7 +5137,7 @@ toIntervalSecond(n)
 
 **Arguments**
 
-- `n` — Number of seconds. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of seconds. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 
@@ -5174,7 +5174,7 @@ toIntervalMillisecond(n)
 
 **Arguments**
 
-- `n` — Number of milliseconds. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of milliseconds. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 
@@ -5211,7 +5211,7 @@ toIntervalMicrosecond(n)
 
 **Arguments**
 
-- `n` — Number of microseconds. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of microseconds. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 
@@ -5248,7 +5248,7 @@ toIntervalNanosecond(n)
 
 **Arguments**
 
-- `n` — Number of nanoseconds. Positive integer number or string representation thereof. [Int*](../data-types/int-uint.md)/[String](../data-types/string.md).
+- `n` — Number of nanoseconds. Integer numbers or string representations thereof, and float numbers. [(U)Int*](../data-types/int-uint.md)/[Float*](../data-types/float.md)/[String](../data-types/string.md).
 
 **Returned values**
 

utils/check-style/aspell-ignore/en/aspell-dict.txt

@@ -384,6 +384,18 @@ IntelliJ
 IntelliSense
 InterserverConnection
 InterserverThreads
+IntervalDay
+IntervalHour
+IntervalMicrosecond
+IntervalMillisecond
+IntervalMilliseconds
+IntervalMinute
+IntervalMonth
+IntervalNanosecond
+IntervalQuarter
+IntervalSecond
+IntervalWeek
+IntervalYear
 IsPentagon
 IsResClassIII
 IsValid
@@ -2715,6 +2727,17 @@ toISOWeek
 toISOYear
 toInt
 toInterval
+toIntervalDay
+toIntervalHour
+toIntervalMicrosecond
+toIntervalMillisecond
+toIntervalMinute
+toIntervalMonth
+toIntervalNanosecond
+toIntervalQuarter
+toIntervalSecond
+toIntervalWeek
+toIntervalYear
 toJSONString
 toLastDayOfMonth
 toLastDayOfWeek