ALTER-SQL-BLOCK-RULE

Name

ALTER SQL BLOCK RULE

Description

Modify SQL blocking rules to allow modification of each item such as sql/sqlHash/partition_num/tablet_num/cardinality/global/enable.

grammar:

ALTER SQL_BLOCK_RULE rule_name
[PROPERTIES ("key"="value", ...)];

illustrate:

• sql and sqlHash cannot be set at the same time. This means that if a rule sets sql or sqlHash, the other attribute cannot be modified;
• sql/sqlHash and partition_num/tablet_num/cardinality cannot be set at the same time. For example, if a rule sets partition_num, then sql or sqlHash cannot be modified;

Example

1. Modify according to SQL properties

ALTER SQL_BLOCK_RULE test_rule PROPERTIES("sql"="select \\* from test_table","enable"="true")

2. If a rule sets partition_num, then sql or sqlHash cannot be modified

ALTER SQL_BLOCK_RULE test_rule2 PROPERTIES("partition_num" = "10","tablet_num"="300","enable"="true")

Keywords

ALTER,SQL_BLOCK_RULE

Best Practice