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Update 23.partition #1

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Update 23.partition #1

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7 changes: 4 additions & 3 deletions 23.partition
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Original file line number Diff line number Diff line change
Expand Up @@ -111,17 +111,18 @@ Sub Partition
-------------

CREATE TABLE orders (
order_id INT AUTO_INCREMENT PRIMARY KEY,
order_id INT AUTO_INCREMENT,
order_date DATE NOT NULL,
customer_name VARCHAR(50),
amount DECIMAL(10,2)
amount DECIMAL(10,2),
primary key(order_id,order_date) --order-date need to be primary key
)
-- Range partition by YEAR(order_date)
PARTITION BY RANGE (YEAR(order_date))
-- Subpartition by HASH on MONTH(order_date)
SUBPARTITION BY HASH (MONTH(order_date))
-- We want 3 top-level (range) partitions
PARTITIONS 3
-- PARTITIONS 3 # this line shows error in MySQL
-- Each partition splits into 2 subpartitions
SUBPARTITIONS 2
(
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