Add more postgres utility wrappers
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406809B8763FF07A
87
query.ts
87
query.ts
@ -168,6 +168,23 @@ export const text: SqlType = {
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},
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};
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export const char: SqlType = {
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input(c) {
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const n = c.charCodeAt(0);
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if (c.length === 1 && 0 <= n && n <= 255) return c;
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throw new SqlTypeError(`invalid char input '${c}'`);
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},
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output(x) {
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let c: string;
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if (typeof x === "undefined" || x === null) return null;
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else if (typeof x === "number") c = String.fromCharCode(x);
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else c = String(x);
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const n = c.charCodeAt(0);
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if (c.length === 1 && 0 <= n && n <= 255) return c;
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else throw new SqlTypeError(`invalid char output '${x}'`);
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},
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};
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export const int2: SqlType = {
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input(s) {
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const n = Number(s);
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@ -201,6 +218,22 @@ export const int4: SqlType = {
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},
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};
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export const uint4: SqlType = {
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input(s) {
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const n = Number(s);
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if (Number.isInteger(n) && 0 <= n && n <= 4294967295) return n;
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else throw new SqlTypeError(`invalid uint4 input '${s}'`);
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},
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output(x) {
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let n: number;
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if (typeof x === "undefined" || x === null) return null;
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else if (typeof x === "number") n = x;
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else n = Number(x);
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if (Number.isInteger(n) && 0 <= n && n <= 4294967295) return n.toString();
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else throw new SqlTypeError(`invalid uint4 output '${x}'`);
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},
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};
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export const int8: SqlType = {
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input(s) {
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const n = BigInt(s);
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@ -214,14 +247,36 @@ export const int8: SqlType = {
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else if (typeof x === "number" || typeof x === "bigint") n = x;
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else if (typeof x === "string") n = BigInt(x);
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else n = Number(x);
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if (Number.isInteger(n)) {
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if (-9007199254740991 <= n && n <= 9007199254740991) return n.toString();
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else throw new SqlTypeError(`unsafe int8 output '${x}'`);
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} else if (typeof n === "bigint") {
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if (-9223372036854775808n <= n && n <= 9223372036854775807n)
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return n.toString();
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}
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throw new SqlTypeError(`invalid int8 output '${x}'`);
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if (
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(typeof n === "number" && Number.isSafeInteger(n)) ||
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(typeof n === "bigint" &&
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-9223372036854775808n <= n &&
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n <= 9223372036854775807n)
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) {
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return n.toString();
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} else throw new SqlTypeError(`invalid int8 output '${x}'`);
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},
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};
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export const uint8: SqlType = {
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input(s) {
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const n = BigInt(s);
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if (0n <= n && n <= 9007199254740991n) return Number(n);
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else if (0n <= n && n <= 18446744073709551615n) return n;
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else throw new SqlTypeError(`invalid uint8 input '${s}'`);
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},
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output(x) {
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let n: number | bigint;
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if (typeof x === "undefined" || x === null) return null;
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else if (typeof x === "number" || typeof x === "bigint") n = x;
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else if (typeof x === "string") n = BigInt(x);
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else n = Number(x);
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if (
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(typeof n === "number" && Number.isSafeInteger(n) && 0 <= n) ||
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(typeof n === "bigint" && 0n <= n && n <= 18446744073709551615n)
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) {
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return n.toString();
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} else throw new SqlTypeError(`invalid uint8 output '${x}'`);
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},
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};
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@ -305,20 +360,26 @@ export const json: SqlType = {
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};
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export const sql_types: SqlTypeMap = {
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0: text,
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16: bool, // bool
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25: text, // text
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17: bytea, // bytea
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18: char, // char
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19: text, // name
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20: int8, // int8
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21: int2, // int2
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23: int4, // int4
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20: int8, // int8
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26: int8, // oid
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25: text, // text
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26: uint4, // oid
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28: uint4, // xid
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29: uint4, // cid
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114: json, // json
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700: float4, // float4
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701: float8, // float8
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1082: timestamptz, // date
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1114: timestamptz, // timestamp
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1184: timestamptz, // timestamptz
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17: bytea, // bytea
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114: json, // json
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3802: json, // jsonb
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5069: uint8, // xid8
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};
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sql.types = sql_types;
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157
wire.ts
157
wire.ts
@ -545,18 +545,159 @@ export class Wire<V extends WireEvents = WireEvents>
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return this.#notify(channel, payload);
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}
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async get(param: string) {
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return await this.query`select current_setting(${param}, true)`
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.map(([s]) => String(s))
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async current_setting(name: string) {
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return await this.query<[string]>`select current_setting(${name}, true)`
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.map(([x]) => x)
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.first_or(null);
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}
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async set(param: string, value: string, local = false) {
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return await this.query`select set_config(${param}, ${value}, ${local})`
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.map(([s]) => String(s))
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async set_config(name: string, value: string, local = false) {
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return await this.query<
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[string]
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>`select set_config(${name}, ${value}, ${local})`
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.map(([x]) => x)
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.first();
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}
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async cancel_backend(pid: number) {
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return await this.query<[boolean]>`select pg_cancel_backend(${pid})`
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.map(([x]) => x)
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.first();
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}
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async terminate_backend(pid: number, timeout = 0) {
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return await this.query<
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[boolean]
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>`select pg_terminate_backend(${pid}, ${timeout})`
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.map(([x]) => x)
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.first();
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}
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async inet() {
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return await this.query<{
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client_addr: string;
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client_port: number;
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server_addr: string;
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server_port: number;
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}>`
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select
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inet_client_addr() as client_addr,
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inet_client_port() as client_port,
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inet_server_addr() as server_addr,
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inet_server_port() as server_por
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`.first();
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}
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async listening_channels() {
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return await this.query<[string]>`select pg_listening_channels()`
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.map(([x]) => x)
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.collect();
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}
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async notification_queue_usage() {
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return await this.query<[number]>`select pg_notification_queue_usage()`
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.map(([x]) => x)
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.first();
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}
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async postmaster_start_time() {
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return await this.query<[Date]>`select pg_postmaster_start_time()`
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.map(([x]) => x)
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.first();
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}
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async current_wal() {
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return await this.query<{
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lsn: string;
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insert_lsn: string;
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flush_lsn: string;
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}>`
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select
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pg_current_wal_lsn() as lsn,
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pg_current_wal_insert_lsn() as insert_lsn,
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pg_current_wal_flush_lsn() as flush_lsn
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`.first();
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}
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async switch_wal() {
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return await this.query<[string]>`select pg_switch_wal()`
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.map(([x]) => x)
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.first();
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}
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async nextval(seq: string) {
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return await this.query<[number | bigint]>`select nextval(${seq})`
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.map(([x]) => x)
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.first();
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}
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async setval(seq: string, value: number | bigint, is_called = true) {
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return await this.query<
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[number | bigint]
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>`select setval(${seq}, ${value}, ${is_called})`
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.map(([x]) => x)
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.first();
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}
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async currval(seq: string) {
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return await this.query<[number]>`select currval(${seq})`
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.map(([x]) => x)
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.first();
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}
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async lastval() {
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return await this.query<[number]>`select lastval()`.map(([x]) => x).first();
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}
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async validate_input(s: string, type: string) {
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return await this.query<{
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message: string | null;
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detail: string | null;
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hint: string | null;
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sql_error_code: string | null;
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}>`select * from pg_input_error_info(${s}, ${type})`.first();
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}
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async current_xid() {
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return await this.query<[number | bigint]>`select pg_current_xact_id()`
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.map(([x]) => x)
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.first();
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}
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async current_xid_if_assigned() {
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return await this.query<
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[number | bigint | null]
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>`select pg_current_xact_id_if_assigned()`
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.map(([x]) => x)
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.first();
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}
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async xact_info(xid: number | bigint) {
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return await this.query<{
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status: "progress" | "committed" | "aborted";
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age: number;
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mxid_age: number;
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}>`
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select
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pg_xact_status(${xid}) as status,
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age(${xid}) as age,
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mxid_age(${xid}) as mxid_age
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`;
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}
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async version() {
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return await this.query<{
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postgres: string;
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unicode: string;
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icu_unicode: string | null;
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}>`
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select
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version() as postgres,
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unicode_version() as unicode,
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icu_unicode_version() as icu_unicode
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`.first();
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}
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close(reason?: unknown) {
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this.#close(reason);
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}
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@ -1017,7 +1158,7 @@ function wire_impl(
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return jit.compiled<ParameterSerializer>`function ser_params(xs) {
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return [
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${jit.map(", ", param_types, (type_oid, i) => {
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const type = types[type_oid] ?? text;
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const type = types[type_oid] ?? types[0] ?? text;
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return jit`${type}.output(xs[${i}])`;
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})}
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];
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@ -1034,7 +1175,7 @@ function wire_impl(
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function make_row_ctor({ columns }: RowDescription) {
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const Row = jit.compiled<RowConstructor>`function Row(xs) {
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${jit.map(" ", columns, ({ name, type_oid }, i) => {
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const type = types[type_oid] ?? text;
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const type = types[type_oid] ?? types[0] ?? text;
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return jit`this[${name}] = xs[${i}] === null ? null : ${type}.input(${from_utf8}(xs[${i}]));`;
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})}
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}`;
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