shaofengshi closed pull request #159: KYLIN-3403 filter code system add one
type of Date
URL: https://github.com/apache/kylin/pull/159
This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:
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diff --git
a/core-metadata/src/main/java/org/apache/kylin/metadata/filter/FilterCodeSystemFactory.java
b/core-metadata/src/main/java/org/apache/kylin/metadata/filter/FilterCodeSystemFactory.java
index bae8cf94e2..8ac36b1216 100644
---
a/core-metadata/src/main/java/org/apache/kylin/metadata/filter/FilterCodeSystemFactory.java
+++
b/core-metadata/src/main/java/org/apache/kylin/metadata/filter/FilterCodeSystemFactory.java
@@ -22,18 +22,23 @@
import java.util.HashMap;
import org.apache.kylin.common.util.BytesUtil;
+import org.apache.kylin.common.util.DateFormat;
import org.apache.kylin.metadata.datatype.DataType;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
/**
* Created by donald.zheng on 2016/12/19.
*/
public class FilterCodeSystemFactory {
+ private static final Logger logger =
LoggerFactory.getLogger(FilterCodeSystemFactory.class);
private final static HashMap<String, IFilterCodeSystem> codeSystemMap =
new HashMap<>();
static {
codeSystemMap.put("string", StringCodeSystem.INSTANCE);
codeSystemMap.put("integer", new IntegerCodeSystem());
codeSystemMap.put("decimal", new DecimalCodeSystem());
+ codeSystemMap.put("date", new DateTimeCodeSystem());
}
public static IFilterCodeSystem getFilterCodeSystem(DataType dataType) {
@@ -41,6 +46,8 @@ public static IFilterCodeSystem getFilterCodeSystem(DataType
dataType) {
return codeSystemMap.get("integer");
} else if (dataType.isNumberFamily()) {
return codeSystemMap.get("decimal");
+ } else if (dataType.isDateTimeFamily()) {
+ return codeSystemMap.get("date");
} else {
return codeSystemMap.get("string");
}
@@ -95,4 +102,33 @@ public int compare(Object o, Object t1) {
}
}
+ private static class DateTimeCodeSystem implements
IFilterCodeSystem<String> {
+
+ @Override
+ public boolean isNull(String code) {
+ return code == null;
+ }
+
+ @Override
+ public void serialize(String code, ByteBuffer buf) {
+ BytesUtil.writeUTFString(code, buf);
+ }
+
+ @Override
+ public String deserialize(ByteBuffer buf) {
+ return BytesUtil.readUTFString(buf);
+ }
+
+ @Override
+ public int compare(String o1, String o2) {
+ try {
+ long d1 = DateFormat.stringToMillis(o1);
+ long d2 = DateFormat.stringToMillis(o2);
+ return Long.compare(d1, d2);
+ } catch (IllegalArgumentException e) {
+ logger.error("failed to convert string[{},{}] to date, use
string to compare.", o1, o2, e);
+ return o1.compareTo(o2);
+ }
+ }
+ }
}
diff --git a/kylin-it/src/test/resources/query/sql_datetime/query01.sql
b/kylin-it/src/test/resources/query/sql_datetime/query01.sql
new file mode 100644
index 0000000000..b2f8b8059d
--- /dev/null
+++ b/kylin-it/src/test/resources/query/sql_datetime/query01.sql
@@ -0,0 +1,9 @@
+SELECT
+
+count(1) as TRANS_CNT
+
+FROM TEST_KYLIN_FACT as TEST_KYLIN_FACT
+INNER JOIN EDW.TEST_CAL_DT as TEST_CAL_DT
+ON TEST_KYLIN_FACT.CAL_DT = TEST_CAL_DT.CAL_DT
+
+WHERE TEST_CAL_DT.WEEK_BEG_DT > date'2001-09-09'
\ No newline at end of file
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