Github user jackylk commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2875#discussion_r230617938
--- Diff:
core/src/main/java/org/apache/carbondata/core/constants/CarbonCommonConstants.java
---
@@ -117,77 +126,106 @@ private CarbonCommonConstants() {
* CARBON_TIMESTAMP
*/
public static final String CARBON_TIMESTAMP_MILLIS = "dd-MM-yyyy
HH:mm:ss:SSS";
+
/**
- * compressor for writing/reading carbondata file
+ * Property for specifying the format of DATE data type column.
+ * e.g. yyyy/MM/dd , or using default value
*/
+ @CarbonProperty
+ public static final String CARBON_DATE_FORMAT = "carbon.date.format";
+
+ /**
+ * default value
+ */
+ public static final String CARBON_DATE_DEFAULT_FORMAT = "yyyy-MM-dd";
+
+ /**
+ * compressor for writing/reading CarbonData file
+ */
+ @CarbonProperty
public static final String COMPRESSOR = "carbon.column.compressor";
/**
* default compressor is snappy
*/
public static final String DEFAULT_COMPRESSOR = "snappy";
+
/**
- * ZOOKEEPER_ENABLE_LOCK if this is set to true then zookeeper will be
used to handle locking
+ * ZOOKEEPER_ENABLE_LOCK if this is set to true then zookeeper
+ * will be used to handle locking
* mechanism of carbon
*/
@CarbonProperty
public static final String LOCK_TYPE = "carbon.lock.type";
+ /**
+ * ZOOKEEPER_ENABLE_DEFAULT the default value for zookeeper will be true
for carbon
+ */
+ public static final String LOCK_TYPE_DEFAULT = "LOCALLOCK";
+
/**
* Specifies the path where the lock files have to be created.
* By default, lock files are created in table path.
*/
@CarbonProperty
public static final String LOCK_PATH = "carbon.lock.path";
- /**
- * ZOOKEEPER_ENABLE_DEFAULT the default value for zookeeper will be true
for carbon
- */
- public static final String LOCK_TYPE_DEFAULT = "LOCALLOCK";
+ public static final String LOCK_PATH_DEFAULT = "";
/**
* ZOOKEEPER_LOCATION this is the location in zookeeper file system
where locks are created.
* mechanism of carbon
*/
public static final String ZOOKEEPER_LOCATION = "/CarbonLocks";
+
/**
- * xxhash algorithm property for hashmap
+ * xxhash algorithm property for hashMap
*/
+ @CarbonProperty
public static final String ENABLE_XXHASH = "carbon.enableXXHash";
/**
- * xxhash algorithm property for hashmap. Default value false
+ * xxhash algorithm property for hashMap Default value false
--- End diff --
keep hashmap
---
