honeymoose
/
OpenSearch
mirror of https://github.com/honeymoose/OpenSearch.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
OpenSearch/docs/reference/sql/functions/math.asciidoc

662 lines
18 KiB
Plaintext
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

[role="xpack"]
[testenv="basic"]
[[sql-functions-math]]
=== Mathematical Functions
All math and trigonometric functions require their input (where applicable)
to be numeric.
[[sql-functions-math-generic]]
[discrete]
=== Generic
[[sql-functions-math-abs]]
==== `ABS`
.Synopsis:
[source, sql]
--------------------------------------------------
ABS(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: numeric
*Description*: Returns the https://en.wikipedia.org/wiki/Absolute_value[absolute value] of `numeric_exp`. The return type is the same as the input type.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[abs]
--------------------------------------------------
[[sql-functions-math-cbrt]]
==== `CBRT`
.Synopsis:
[source, sql]
--------------------------------------------------
CBRT(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Cube_root[cube root] of `numeric_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineCbrtWithNegativeValue]
--------------------------------------------------
[[sql-functions-math-ceil]]
==== `CEIL/CEILING`
.Synopsis:
[source, sql]
--------------------------------------------------
CEIL(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: integer or long numeric value
*Description*: Returns the smallest integer greater than or equal to `numeric_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineCeiling]
--------------------------------------------------
[[sql-functions-math-e]]
==== `E`
.Synopsis:
[source, sql]
--------------------------------------------------
E()
--------------------------------------------------
*Input*: _none_
*Output*: `2.718281828459045`
*Description*: Returns https://en.wikipedia.org/wiki/E_%28mathematical_constant%29[Euler's number].
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathEulersNumber]
--------------------------------------------------
[[sql-functions-math-exp]]
==== `EXP`
.Synopsis:
[source, sql]
--------------------------------------------------
EXP(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> float numeric expression
*Output*: double numeric value
*Description*: Returns https://en.wikipedia.org/wiki/Exponential_function[Euler's number at the power] of `numeric_exp` e^numeric_exp^.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathExpInline]
--------------------------------------------------
[[sql-functions-math-expm1]]
==== `EXPM1`
.Synopsis:
[source, sql]
--------------------------------------------------
EXPM1(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> float numeric expression
*Output*: double numeric value
*Description*: Returns https://docs.oracle.com/javase/8/docs/api/java/lang/Math.html#expm1-double-[Euler's number at the power] of `numeric_exp` minus 1 (e^numeric_exp^ - 1).
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathExpm1Inline]
--------------------------------------------------
[[sql-functions-math-floor]]
==== `FLOOR`
.Synopsis:
[source, sql]
--------------------------------------------------
FLOOR(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: integer or long numeric value
*Description*: Returns the largest integer less than or equal to `numeric_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineFloor]
--------------------------------------------------
[[sql-functions-math-log]]
==== `LOG`
.Synopsis:
[source, sql]
--------------------------------------------------
LOG(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Natural_logarithm[natural logarithm] of `numeric_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineLog]
--------------------------------------------------
[[sql-functions-math-log10]]
==== `LOG10`
.Synopsis:
[source, sql]
--------------------------------------------------
LOG10(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Common_logarithm[base 10 logarithm] of `numeric_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineLog10]
--------------------------------------------------
[[sql-functions-math-pi]]
==== `PI`
.Synopsis:
[source, sql]
--------------------------------------------------
PI()
--------------------------------------------------
*Input*: _none_
*Output*: `3.141592653589793`
*Description*: Returns https://en.wikipedia.org/wiki/Pi[PI number].
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathPINumber]
--------------------------------------------------
[[sql-functions-math-power]]
==== `POWER`
.Synopsis:
[source, sql]
--------------------------------------------------
POWER(
numeric_exp, <1>
integer_exp) <2>
--------------------------------------------------
*Input*:
<1> numeric expression
<2> integer expression
*Output*: double numeric value
*Description*: Returns the value of `numeric_exp` to the power of `integer_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlinePowerPositive]
--------------------------------------------------
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlinePowerNegative]
--------------------------------------------------
[[sql-functions-math-random]]
==== `RANDOM/RAND`
.Synopsis:
[source, sql]
--------------------------------------------------
RANDOM(seed) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns a random double using the given seed.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathRandom]
--------------------------------------------------
[[sql-functions-math-round]]
==== `ROUND`
.Synopsis:
[source, sql]
----
ROUND(
numeric_exp <1>
[, integer_exp]) <2>
----
*Input*:
<1> numeric expression
<2> integer expression; optional
*Output*: numeric
*Description*: Returns `numeric_exp` rounded to `integer_exp` places right of the decimal point. If `integer_exp` is negative,
`numeric_exp` is rounded to |`integer_exp`| places to the left of the decimal point. If `integer_exp` is omitted,
the function will perform as if `integer_exp` would be 0. The returned numeric data type is the same as the data type
of `numeric_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathRoundWithPositiveParameter]
--------------------------------------------------
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathRoundWithNegativeParameter]
--------------------------------------------------
[[sql-functions-math-sign]]
==== `SIGN/SIGNUM`
.Synopsis:
[source, sql]
--------------------------------------------------
SIGN(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: [-1, 0, 1]
*Description*: Returns an indicator of the sign of `numeric_exp`. If `numeric_exp` is less than zero, –1 is returned. If `numeric_exp` equals zero, 0 is returned. If `numeric_exp` is greater than zero, 1 is returned.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineSign]
--------------------------------------------------
[[sql-functions-math-sqrt]]
==== `SQRT`
.Synopsis:
[source, sql]
--------------------------------------------------
SQRT(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns https://en.wikipedia.org/wiki/Square_root[square root] of `numeric_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineSqrt]
--------------------------------------------------
[[sql-functions-math-truncate]]
==== `TRUNCATE/TRUNC`
.Synopsis:
[source, sql]
----
TRUNCATE(
numeric_exp <1>
[, integer_exp]) <2>
----
*Input*:
<1> numeric expression
<2> integer expression; optional
*Output*: numeric
*Description*: Returns `numeric_exp` truncated to `integer_exp` places right of the decimal point. If `integer_exp` is negative,
`numeric_exp` is truncated to |`integer_exp`| places to the left of the decimal point. If `integer_exp` is omitted,
the function will perform as if `integer_exp` would be 0. The returned numeric data type is the same as the data type
of `numeric_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathTruncateWithPositiveParameter]
--------------------------------------------------
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathTruncateWithNegativeParameter]
--------------------------------------------------
[[sql-functions-math-trigonometric]]
[discrete]
=== Trigonometric
[[sql-functions-math-acos]]
==== `ACOS`
.Synopsis:
[source, sql]
--------------------------------------------------
ACOS(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Inverse_trigonometric_functions[arccosine] of `numeric_exp` as an angle, expressed in radians.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineAcos]
--------------------------------------------------
[[sql-functions-math-asin]]
==== `ASIN`
.Synopsis:
[source, sql]
--------------------------------------------------
ASIN(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Inverse_trigonometric_functions[arcsine] of `numeric_exp` as an angle, expressed in radians.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineAsin]
--------------------------------------------------
[[sql-functions-math-atan]]
==== `ATAN`
.Synopsis:
[source, sql]
--------------------------------------------------
ATAN(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Inverse_trigonometric_functions[arctangent] of `numeric_exp` as an angle, expressed in radians.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineAtan]
--------------------------------------------------
[[sql-functions-math-atan2]]
==== `ATAN2`
.Synopsis:
[source, sql]
--------------------------------------------------
ATAN2(
ordinate, <1>
abscisa) <2>
--------------------------------------------------
*Input*:
<1> numeric expression
<2> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Atan2[arctangent of the `ordinate` and `abscisa` coordinates] specified as an angle, expressed in radians.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineAtan2]
--------------------------------------------------
[[sql-functions-math-cos]]
==== `COS`
.Synopsis:
[source, sql]
--------------------------------------------------
COS(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Trigonometric_functions#cosine[cosine] of `numeric_exp`, where `numeric_exp` is an angle expressed in radians.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineCosine]
--------------------------------------------------
[[sql-functions-math-cosh]]
==== `COSH`
.Synopsis:
[source, sql]
--------------------------------------------------
COSH(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Hyperbolic_function[hyperbolic cosine] of `numeric_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineCosh]
--------------------------------------------------
[[sql-functions-math-cot]]
==== `COT`
.Synopsis:
[source, sql]
--------------------------------------------------
COT(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Trigonometric_functions#Cosecant,_secant,_and_cotangent[cotangent] of `numeric_exp`, where `numeric_exp` is an angle expressed in radians.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineCotangent]
--------------------------------------------------
[[sql-functions-math-degrees]]
==== `DEGREES`
.Synopsis:
[source, sql]
--------------------------------------------------
DEGREES(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Convert from https://en.wikipedia.org/wiki/Radian[radians]
to https://en.wikipedia.org/wiki/Degree_(angle)[degrees].
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineDegrees]
--------------------------------------------------
[[sql-functions-math-radians]]
==== `RADIANS`
.Synopsis:
[source, sql]
--------------------------------------------------
RADIANS(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Convert from https://en.wikipedia.org/wiki/Degree_(angle)[degrees]
to https://en.wikipedia.org/wiki/Radian[radians].
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineRadians]
--------------------------------------------------
[[sql-functions-math-sin]]
==== `SIN`
.Synopsis:
[source, sql]
--------------------------------------------------
SIN(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Trigonometric_functions#sine[sine] of `numeric_exp`, where `numeric_exp` is an angle expressed in radians.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineSine]
--------------------------------------------------
[[sql-functions-math-sinh]]
==== `SINH`
.Synopsis:
[source, sql]
--------------------------------------------------
SINH(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Hyperbolic_function[hyperbolic sine] of `numeric_exp`.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineSinh]
--------------------------------------------------
[[sql-functions-math-tan]]
==== `TAN`
.Synopsis:
[source, sql]
--------------------------------------------------
TAN(numeric_exp) <1>
--------------------------------------------------
*Input*:
<1> numeric expression
*Output*: double numeric value
*Description*: Returns the https://en.wikipedia.org/wiki/Trigonometric_functions#tangent[tangent] of `numeric_exp`, where `numeric_exp` is an angle expressed in radians.
["source","sql",subs="attributes,macros"]
--------------------------------------------------
include-tagged::{sql-specs}/docs/docs.csv-spec[mathInlineTanget]
--------------------------------------------------
Reference in New Issue View Git Blame Copy Permalink