private void shardingKeyIndex() {
// create shardingKey index
if (ruleColumns != null) {
ArrayList<Index> indexes = getIndexes();
boolean isMatch = false;
for (Index index : indexes) {
Column[] columns = index.getColumns();
if (columns.length != ruleColumns.length) {
continue;
}
boolean shardingKeyIndex = true;
for (int idx = 0; idx < columns.length; idx++) {
if (columns[idx] != ruleColumns[idx]) {
shardingKeyIndex = false;
break;
}
}
if (shardingKeyIndex) {
index.getIndexType().shardingKeyIndex();
isMatch = true;
}
}
if (!isMatch) {
List<Column> asList = Arrays.asList(ruleColumns);
addIndex("$shardingKey", New.arrayList(asList), IndexType.createShardingKey(false));
}
}
}
