Column type are used as column data types of Hive. They are as follows:Integral TypesInteger type data can be specified using integral data types, INT. When the data range exceeds the range of INT, you need to use BIGINT and if the data range is smaller than the INT, you use SMALL...
Column type are used as column data types of Hive. They are as follows: 列类型用作Hive的列数据类型。 它们如下: Integral Types Integer type data can be specified using integral data types, INT. When the data range exceeds the range of INT, you need to use BIGINT and if the data range...
Primitive Data Types Complex Data Types Primitive Data Types可以进一步分为四类: Numeric Types String Types Date/Time Types Miscellaneous Types 这些数据类型和占用空间大小与Java/SQL primitive相似。 1. Hive数据类型 Primitive Data Types Numeric Data Types 整型包括tinyint、smallint、int和bigint,等价于Java...
为支持 hive orc 中的 Decimal 数据类型,可以在 datax 的 hdfsWriter 模块相关代码中,通过调用 hive 的api org.apache.hadoop.hive.serde2.typeinfo.HiveDecimalUtils#enforcePrecisionScale() 和 org.apache.hadoop.hive.common.type.HiveDecimal#enforcePrecisionScale, 将数据转换为 hive orc 期望的精度和标度 DE...
String Types STRING 对于Hive的String类型相当于数据库的varchar类型,该类型是一个可变的字符串,不过它不能声明其中最多能存储多少个字符,理论上它可以存储2GB的字符数。 Primitive Types Demo DROP TABLE IF EXISTS hive_primitive_data_types;CREATE TABLE hive_primitive_data_types( c_integers_tinyint TINYINT,...
Once the value has been parsed and converted to aVerticadata type, it is treated as native data. This treatment can result in some confusion when comparing the results of an identical query run in Hive and inVertica. For example, if your query adds two INT values that result in a val...
Data type is an attribute of data which is used to define the type of value a column stores in Hive table. Hive provides various data types such as Numeric, Date/time. String and so on.
在hdfsReader 部分将 hive 的 Decimal 字段指定为 datax 的 Double 数据类型,此时 hdfsReader 在底层就会调用 hive 的相关 api 读取底层 orc 文件中的相关字段,并将 orc 的 Decimal 字段隐式转换为 datax 的 Double 类型,由于 datax 的 Double 类型可以存储的数据范围包括 java.math.BigDecimal 也包括java....
From your cluster, choose Hive Databases > default > hivesampletable.To view the hivesampletable schema: Expand hivesampletable. The names and data types of the hivesampletable columns are shown. To view the hivesampletable data: Right-click hivesampletable, and select View Top 100 Rows. ...
The user-created Hive-MetaDB instance information. Used by actions: CreateCluster. NameTypeRequiredDescription MetaDataJdbcUrl String No The JDBC URL of the custom metadatabase instance. Example: jdbc:mysql://10.10.10.10:3306/dbname MetaDataUser String No The custom metadatabase instance username. ...