Enum SqlFunction 

pub enum SqlFunction {
    Count,
    Sum,
    Avg,
    Min,
    Max,
    Stddev,
    Variance,
    StddevPop,
    StddevSamp,
    VarPop,
    VarSamp,
    ArrayAgg,
    StringAgg,
    GroupConcat,
    Listagg,
    Median,
    Mode,
    PercentileCont,
    PercentileDisc,
    ApproxCountDistinct,
    AnyValue,
    First,
    Last,
    BoolAnd,
    BoolOr,
    BitAnd,
    BitOr,
    BitXor,
    Corr,
    CovarPop,
    CovarSamp,
    RegrSlope,
    Every,
    RowNumber,
    Rank,
    DenseRank,
    Ntile,
    CumeDist,
    PercentRank,
    Lag,
    Lead,
    FirstValue,
    LastValue,
    NthValue,
    Coalesce,
    Nullif,
    Ifnull,
    Now,
    CurrentTimestamp,
    CurrentDate,
    Date,
    DateTrunc,
    Extract,
    DatePart,
    Year,
    Month,
    Day,
    DayOfWeek,
    Quarter,
    MakeDate,
    MakeTime,
    MakeTimestamp,
    MakeTimestamptz,
    Age,
    Concat,
    Upper,
    Lower,
    Trim,
    Ltrim,
    Rtrim,
    Substring,
    Substr,
    Length,
    CharLength,
    CharacterLength,
    ToChar,
    Replace,
    Translate,
    Reverse,
    Repeat,
    Lpad,
    Rpad,
    Initcap,
    QuoteIdent,
    QuoteLiteral,
    Left,
    Right,
    Position,
    Strpos,
    SplitPart,
    Abs,
    Sign,
    Round,
    Trunc,
    Truncate,
    Ceil,
    Ceiling,
    Floor,
    Power,
    Pow,
    Sqrt,
    Exp,
    Ln,
    Log,
    Log10,
    Log2,
    Mod,
    Sin,
    Cos,
    Tan,
    Asin,
    Acos,
    Atan,
    Atan2,
    Sinh,
    Cosh,
    Tanh,
    Pi,
    Random,
    Greatest,
    Least,
    JsonObject,
    JsonArray,
    ToJson,
    JsonExtract,
    JsonExtractText,
    JsonArrayLength,
    JsonObjectKeys,
    JsonContains,
}

Known SQL function names used across smelt crates.

Every function that appears in type inference, optimizer analysis, diagnostics, or test generators should have a variant here.

Variants

Count

Sum

Avg

Min

Max

Stddev

Variance

StddevPop

StddevSamp

VarPop

VarSamp

ArrayAgg

StringAgg

GroupConcat

Listagg

Median

Mode

PercentileCont

PercentileDisc

ApproxCountDistinct

AnyValue

First

Last

BoolAnd

BoolOr

BitAnd

BitOr

BitXor

Corr

CovarPop

CovarSamp

RegrSlope

Every

RowNumber

Rank

DenseRank

Ntile

CumeDist

PercentRank

Lag

Lead

FirstValue

LastValue

NthValue

Coalesce

Nullif

Ifnull

Now

CurrentTimestamp

CurrentDate

Date

DateTrunc

Extract

DatePart

Year

Month

Day

DayOfWeek

Quarter

MakeDate

MakeTime

MakeTimestamp

MakeTimestamptz

Age

Concat

Upper

Lower

Trim

Ltrim

Rtrim

Substring

Substr

Length

CharLength

CharacterLength

ToChar

Replace

Translate

Reverse

Repeat

Lpad

Rpad

Initcap

QuoteIdent

QuoteLiteral

Left

Right

Position

Strpos

SplitPart

Abs

Sign

Round

Trunc

Truncate

Ceil

Ceiling

Floor

Power

Pow

Sqrt

Exp

Ln

Log

Log10

Log2

Mod

Sin

Cos

Tan

Asin

Acos

Atan

Atan2

Sinh

Cosh

Tanh

Pi

Random

Greatest

Least

JsonObject

json_object / json_build_object — construct JSON object from key-value pairs

JsonArray

json_array / json_build_array — construct JSON array from values

ToJson

to_json / to_jsonb / row_to_json — convert value to JSON

JsonExtract

json_extract / json_extract_path — extract JSON subtree (returns JSON)

JsonExtractText

json_extract_string / json_extract_text / json_extract_path_text / get_json_object — extract as text

JsonArrayLength

json_array_length — number of elements in JSON array

JsonObjectKeys

json_object_keys / json_keys — keys of JSON object

JsonContains

json_contains — JSON containment check

Implementations

impl SqlFunction

pub fn from_name(name: &str) -> Option<Self>

Look up a function by name (case-insensitive).

Accepts both canonical smelt names and dialect-specific aliases (e.g., JSON_BUILD_OBJECT → JsonObject, GET_JSON_OBJECT → JsonExtractText).

pub fn name(&self) -> &'static str

Canonical uppercase SQL name.

pub fn category(&self) -> FunctionCategory

Function category.

pub fn is_aggregate(&self) -> bool

Whether this function is an aggregate function.

pub fn is_window(&self) -> bool

Whether this function is a window function (ranking, distribution, or navigation).

pub fn all() -> impl Iterator<Item = SqlFunction>

Iterator over all known SQL functions.

Trait Implementations

impl Clone for SqlFunction

fn clone(&self) -> SqlFunction

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SqlFunction

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for SqlFunction

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for SqlFunction

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for SqlFunction

fn eq(&self, other: &SqlFunction) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for SqlFunction

impl Eq for SqlFunction

impl StructuralPartialEq for SqlFunction