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function processTicksAndRejections() { | |
let tock; | |
do { | |
while (tock = queue.shift()) { | |
... | |
try { | |
const callback = tock.callback; | |
if (tock.args === undefined) { | |
callback(); |
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function unhandledRejection(promise, reason) { | |
... | |
const emit = (reason, promise, promiseInfo) => { | |
try { | |
... | |
return process.emit('unhandledRejection', reason, promise); | |
} finally { | |
popAsyncContext(asyncId); | |
} |
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function processPromiseRejections() { | |
... | |
... | |
let len = pendingUnhandledRejections.length; | |
while (len--) { | |
const promise = ArrayPrototypeShift(pendingUnhandledRejections); | |
const promiseInfo = maybeUnhandledPromises.get(promise); | |
if (promiseInfo === undefined) { | |
continue; |
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DELIMITER $$ | |
CREATE PROCEDURE insert_data() | |
BEGIN | |
DECLARE i INT DEFAULT 0; | |
WHILE i < 13000000 DO | |
INSERT INTO customer (session, customer_id, product_id) VALUES | |
(CONCAT(i+1, '-', '4949-a976-3b125797f641'), i, i), | |
(CONCAT(i+2, '-', '4949-a976-3b125797f641'), i, i), | |
(CONCAT(i+3, '-', '4949-a976-3b125797f641'), i, i), | |
(CONCAT(i+4, '-', '4949-a976-3b125797f641'), i, i), |
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ALTER TABLE customer DROP PRIMARY KEY, ADD PRIMARY KEY(customer_id, session); |
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CREATE TABLE customer ( | |
session varchar(36), | |
customer_id int, | |
product_id int, | |
primary key (session) | |
); |
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SELECT * | |
FROM customer | |
WHERE session = '0509853c-a14e-4949-a976–3b125797f642'; |
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String selectByIdAndSession = String.format("select * from customer where customer_id = %s and session = %s", customerId, session); | |
String selectBySession = String.format("select * from customer where session = %s", session); | |
if (enableNewQuery) { | |
return CustomerDao(selectByIdAndSession); | |
} else { | |
return CustomerDao(selectBySession); | |
} |
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ALTER TABLE customer ADD INDEX (customer_id); |