duzhanfei edited a comment on issue #8913:
URL: https://github.com/apache/shardingsphere/issues/8913#issuecomment-757980968
@tristaZero
The sharding key is of type String, and sharding rules are made by hashing
values
The following scenarios will cause NullPointerException
①When updating , the sharding key is lowercase,
such as:
PBCST_QRY_INFO_${Math.abs(ecif_cust_no.hashCode() % 16)}
You can have a look at the issue I mentioned
https://github.com/apache/shardingsphere/issues/8303
② When inserting data, the sharding key is uppercase
such as:
PBCST_QRY_INFO_${Math.abs(ECIF_CUST_NO.hashCode() % 16)}
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