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count(distinct a) 排序问题 #862

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Merged
merged 1 commit into from
Jan 20, 2019
Merged

count(distinct a) 排序问题 #862

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20 changes: 19 additions & 1 deletion src/main/java/org/nlpcn/es4sql/query/AggregationQueryAction.java
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Original file line number Diff line number Diff line change
Expand Up @@ -188,7 +188,13 @@ public SqlElasticSearchRequestBuilder explain() throws SqlParseException {
TermsAggregationBuilder termsBuilder = (TermsAggregationBuilder) temp.value;
switch (temp.key) {
case "COUNT":
termsBuilder.order(BucketOrder.count(isASC(order)));
String orderName = order.getName();
if(isAliasFiled(orderName)) {
termsBuilder.order(BucketOrder.aggregation(orderName, isASC(order)));
}else {
termsBuilder.order(BucketOrder.count(isASC(order)));
}

break;
case "KEY":
termsBuilder.order(BucketOrder.key(isASC(order)));
Expand Down Expand Up @@ -487,4 +493,16 @@ private void setLimitFromHint(List<Hint> hints) {
request.setFrom(from);
request.setSize(size);
}
//判断某个字段名称是否是别名
private boolean isAliasFiled(String filedName) {
if(select.getFields().size() > 0) {
for (Field field : select.getFields()) {
if(null !=field.getAlias() && field.getAlias().equals(filedName)) {
return true;
}
}
}
return false;
}

}