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https://github.com/l0ng-ai/openidea.git
синхронізовано 2026-11-09 19:25:54 +02:00
Initial open-source release
Claude-Session: https://claude.ai/code/session_01B65qLEKnkeYTGdbwhLpjCu
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/** Per-dialect SQL vocabulary: reserved words, statement starters and built-in functions. */
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import type { DbDriver } from "@/platform/ipc";
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export interface SqlFunction {
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name: string;
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/** Parameter list shown in the popup, without parentheses. */
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params: string;
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returns?: string;
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aggregate?: boolean;
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}
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/** Words that must be quoted when used as identifiers (the common core of the three dialects). */
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const RESERVED = new Set(
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(
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"ALL AND ANY AS ASC BETWEEN BY CASE CAST CHECK COLLATE COLUMN CONSTRAINT CREATE CROSS CURRENT_DATE " +
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"CURRENT_TIME CURRENT_TIMESTAMP DEFAULT DELETE DESC DISTINCT DROP ELSE END EXCEPT EXISTS FALSE FETCH FOR " +
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"FOREIGN FROM FULL GRANT GROUP HAVING IN INNER INSERT INTERSECT INTO IS JOIN LEFT LIKE LIMIT NATURAL NOT " +
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"NULL OFFSET ON OR ORDER OUTER PRIMARY REFERENCES RIGHT SELECT SET TABLE THEN TO TRUE UNION UNIQUE UPDATE " +
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"USING VALUES WHEN WHERE WINDOW WITH"
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).split(" "),
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);
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export function isReserved(word: string): boolean {
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return RESERVED.has(word.toUpperCase());
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}
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/** Clause keywords: a word in this set ends a table alias or expression. */
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export const CLAUSE_WORDS = new Set(
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(
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"SELECT FROM WHERE GROUP ORDER HAVING LIMIT OFFSET UNION INTERSECT EXCEPT JOIN INNER LEFT RIGHT FULL CROSS " +
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"NATURAL OUTER ON USING SET VALUES RETURNING INTO WINDOW FETCH FOR LATERAL AS WITH UPDATE DELETE INSERT " +
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"AND OR NOT WHEN THEN ELSE END CASE BY ASC DESC IS IN LIKE ILIKE BETWEEN EXISTS NULL STRAIGHT_JOIN"
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).split(" "),
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);
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export function statementStarters(driver: DbDriver): string[] {
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const common = [
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"SELECT",
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"INSERT INTO",
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"UPDATE",
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"DELETE FROM",
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"WITH",
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"CREATE TABLE",
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"CREATE INDEX",
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"CREATE VIEW",
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"ALTER TABLE",
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"DROP TABLE",
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"DROP VIEW",
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"DROP INDEX",
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"EXPLAIN",
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"BEGIN",
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"COMMIT",
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"ROLLBACK",
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];
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if (driver === "sqlite") return [...common, "PRAGMA", "VACUUM", "ATTACH DATABASE", "REPLACE INTO", "CREATE TRIGGER"];
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if (driver === "mysql")
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return [
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...common,
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"SHOW TABLES",
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"SHOW CREATE TABLE",
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"DESCRIBE",
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"TRUNCATE TABLE",
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"REPLACE INTO",
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"USE",
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"CREATE DATABASE",
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"START TRANSACTION",
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];
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return [
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...common,
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"TRUNCATE",
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"CREATE SCHEMA",
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"CREATE FUNCTION",
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"CREATE MATERIALIZED VIEW",
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"SET search_path TO",
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"COPY",
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"ANALYZE",
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"VACUUM",
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];
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}
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export function joinKeywords(driver: DbDriver): string[] {
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const j = ["JOIN", "LEFT JOIN", "INNER JOIN", "CROSS JOIN", "RIGHT JOIN"];
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if (driver !== "mysql") j.push("FULL JOIN");
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if (driver === "postgres") j.push("JOIN LATERAL", "LEFT JOIN LATERAL");
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return j;
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}
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/** Comparison / predicate keywords of WHERE, ON and HAVING. */
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export function predicateKeywords(driver: DbDriver): string[] {
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const k = [
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"AND",
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"OR",
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"NOT",
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"IN",
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"IS NULL",
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"IS NOT NULL",
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"LIKE",
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"BETWEEN",
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"EXISTS",
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"NULL",
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"TRUE",
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"FALSE",
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"CASE",
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];
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if (driver === "postgres") k.push("ILIKE", "IS DISTINCT FROM", "ANY", "SIMILAR TO");
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if (driver === "mysql") k.push("REGEXP");
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if (driver === "sqlite") k.push("GLOB", "REGEXP");
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return k;
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}
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export const DATA_TYPES: Record<DbDriver, string[]> = {
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sqlite: ["INTEGER", "TEXT", "REAL", "BLOB", "NUMERIC", "BOOLEAN", "DATETIME"],
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postgres: [
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"integer",
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"bigint",
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"smallint",
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"serial",
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"bigserial",
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"text",
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"varchar",
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"char",
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"boolean",
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"numeric",
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"real",
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"double precision",
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"date",
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"timestamp",
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"timestamptz",
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"time",
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"interval",
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"uuid",
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"json",
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"jsonb",
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"bytea",
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],
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mysql: [
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"INT",
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"BIGINT",
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"SMALLINT",
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"TINYINT",
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"VARCHAR",
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"CHAR",
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"TEXT",
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"LONGTEXT",
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"DECIMAL",
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"DOUBLE",
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"FLOAT",
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"DATE",
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"DATETIME",
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"TIMESTAMP",
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"TIME",
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"JSON",
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"BLOB",
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"BOOLEAN",
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"ENUM",
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],
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};
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const f = (name: string, params: string, returns?: string, aggregate?: boolean): SqlFunction => ({
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name,
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params,
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returns,
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aggregate,
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});
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const COMMON: SqlFunction[] = [
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f("count", "*", "bigint", true),
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f("sum", "expr", undefined, true),
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f("avg", "expr", undefined, true),
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f("min", "expr", undefined, true),
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f("max", "expr", undefined, true),
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f("coalesce", "value, ...", undefined),
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f("nullif", "a, b"),
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f("lower", "text", "text"),
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f("upper", "text", "text"),
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f("length", "text", "integer"),
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f("trim", "text", "text"),
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f("replace", "text, from, to", "text"),
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f("substr", "text, start, length", "text"),
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f("abs", "number"),
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f("round", "number, digits"),
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f("cast", "expr AS type"),
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];
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const FUNCTIONS: Record<DbDriver, SqlFunction[]> = {
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sqlite: [
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...COMMON,
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f("group_concat", "expr, separator", "text", true),
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f("ifnull", "a, b"),
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f("iif", "cond, then, else"),
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f("instr", "text, search", "integer"),
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f("printf", "format, ...", "text"),
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f("date", "time, modifier...", "text"),
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f("datetime", "time, modifier...", "text"),
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f("strftime", "format, time, modifier...", "text"),
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f("julianday", "time", "real"),
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f("json_extract", "json, path"),
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f("json_object", "key, value, ...", "text"),
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f("random", "", "integer"),
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f("typeof", "expr", "text"),
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f("last_insert_rowid", "", "integer"),
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f("total", "expr", "real", true),
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],
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postgres: [
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...COMMON,
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f("string_agg", "expr, delimiter", "text", true),
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f("array_agg", "expr", "anyarray", true),
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f("json_agg", "expr", "json", true),
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f("jsonb_agg", "expr", "jsonb", true),
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f("bool_and", "expr", "boolean", true),
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f("bool_or", "expr", "boolean", true),
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f("now", "", "timestamptz"),
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f("current_date", "", "date"),
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f("date_trunc", "field, source", "timestamp"),
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f("extract", "field FROM source", "numeric"),
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f("age", "timestamp, timestamp", "interval"),
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f("to_char", "value, format", "text"),
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f("to_timestamp", "text, format", "timestamptz"),
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f("concat", "value, ...", "text"),
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f("concat_ws", "separator, value, ...", "text"),
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f("split_part", "text, delimiter, n", "text"),
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f("regexp_replace", "text, pattern, replacement", "text"),
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f("position", "substring IN text", "integer"),
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f("greatest", "value, ..."),
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f("least", "value, ..."),
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f("gen_random_uuid", "", "uuid"),
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f("jsonb_build_object", "key, value, ...", "jsonb"),
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f("json_build_object", "key, value, ...", "json"),
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f("unnest", "anyarray", "setof"),
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f("generate_series", "start, stop, step", "setof"),
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f("row_number", "", "bigint"),
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f("rank", "", "bigint"),
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f("dense_rank", "", "bigint"),
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f("lag", "value, offset, default"),
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f("lead", "value, offset, default"),
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f("pg_size_pretty", "bigint", "text"),
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],
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mysql: [
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...COMMON,
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f("group_concat", "expr SEPARATOR ','", "text", true),
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f("ifnull", "a, b"),
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f("if", "cond, then, else"),
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f("concat", "value, ...", "text"),
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f("concat_ws", "separator, value, ...", "text"),
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f("now", "", "datetime"),
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f("curdate", "", "date"),
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f("date_format", "date, format", "text"),
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f("date_add", "date, INTERVAL n unit", "datetime"),
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f("date_sub", "date, INTERVAL n unit", "datetime"),
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f("datediff", "a, b", "int"),
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f("unix_timestamp", "date", "bigint"),
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f("from_unixtime", "seconds", "datetime"),
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f("json_extract", "json, path"),
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f("json_object", "key, value, ...", "json"),
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f("json_arrayagg", "expr", "json", true),
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f("greatest", "value, ..."),
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f("least", "value, ..."),
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f("uuid", "", "varchar"),
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f("last_insert_id", "", "bigint"),
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f("row_number", "", "bigint"),
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f("rank", "", "bigint"),
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],
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};
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export function functions(driver: DbDriver): SqlFunction[] {
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return FUNCTIONS[driver];
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}
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