import type { Expr } from "../ir/ir.js";
import type { FnRule } from "../infer/functions.js";
import { type Type } from "../infer/types.js";
export declare const SNOWFLAKE_FUNCTION_RETURNS: Record<string, FnRule>;
/** Snowflake literal forms: '…' / $$…$$ → string; integers are NUMBER(38,0) (int
 *  canonically); non-integers are NUMBER (decimal); 1e3 is approximate (double). */
export declare function snowflakeLiteral(text: string): Type;
/** Snowflake scalar type names → the shared canonical names. All Snowflake integer
 *  types are NUMBER(38,0) synonyms; FLOAT/FLOAT4/FLOAT8/REAL are all double-precision.
 *  docs.snowflake.com/en/sql-reference/intro-summary-data-types */
export declare const SNOWFLAKE_ALIASES: Record<string, string>;
export declare function snowflakeParseType(text: string): Type;
/** Pre-registry hook for calls a plain FnRule can't key. `<seq>.NEXTVAL` carries the sequence as a
 *  (variable) qualifier, so no registry key can enumerate it; NEXTVAL always returns NUMBER(38,0)
 *  regardless of the sequence, so match by name here. docs.snowflake.com/en/sql-reference/functions/nextval */
export declare function snowflakeSpecial(fn: Extract<Expr, {
    kind: "function";
}>): Type | undefined;