RaigorJiang commented on code in PR #20777:
URL: https://github.com/apache/shardingsphere/pull/20777#discussion_r964413609
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shardingsphere-features/shardingsphere-sharding/shardingsphere-sharding-distsql/shardingsphere-sharding-distsql-handler/src/main/java/org/apache/shardingsphere/sharding/distsql/handler/checker/ShardingTableRuleStatementChecker.java:
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@@ -278,24 +278,34 @@ private static void checkTableRule(final String
databaseName, final ShardingRule
}
private static void checkStrategy(final String databaseName, final
ShardingRuleConfiguration currentRuleConfig, final Collection<TableRuleSegment>
rules) throws DistSQLException {
- Collection<String> currentAlgorithms = null == currentRuleConfig ?
Collections.emptySet() : currentRuleConfig.getShardingAlgorithms().keySet();
+ Map<String, AlgorithmConfiguration> currentAlgorithms = null ==
currentRuleConfig ? new HashMap<>() : currentRuleConfig.getShardingAlgorithms();
Review Comment:
Can `new HashMap<>` be replaced with `Collections.emptyMap()`?
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