Module functions 

Function classification sets.

Generated from functions.json

This module provides sets of SQL function names categorized by their behavior (aggregate, window, table-generating). These classifications are used during lineage analysis to determine how expressions should be analyzed.

Structs

FunctionParam

Function parameter information for completion.

FunctionSignature

Function signature for smart completion.

Enums

FunctionCategory

Function category for completion context filtering.

ReturnTypeRule

Return type rule for function type inference.

Statics

AGGREGATE_FUNCTIONS

Aggregate functions (57 total).

UDTF_FUNCTIONS

Table-generating functions / UDTFs (5 total).

WINDOW_FUNCTIONS

Window functions (13 total).

Functions

all_function_signatures

Returns all function signatures for completion.

get_function_signature

Looks up a function signature by name.

infer_function_return_type

Infers the return type rule for a SQL function.

is_aggregate_function

Checks if a function is an aggregate function (e.g., SUM, COUNT, AVG).

is_udtf_function

Checks if a function is a table-generating function / UDTF (e.g., UNNEST, EXPLODE).

is_window_function

Checks if a function is a window function (e.g., ROW_NUMBER, RANK, LAG).