HPL/SQL is included to Apache Hive since version 2.0
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data-types
Data Types
You can use the following data types in HPL/SQL programs:
| Data Type | Description | ||
| BIGINT | INT8 | 64-bit integer | |
| BINARY_DOUBLE | Double precision floating-point number | ||
| BINARY_FLOAT | Single precision floating-point number | ||
| BINARY_INTEGER | 32-bit integer | ||
| BIT | 0, 1 or NULL | ||
| BOOL | BOOLEAN | True or false | |
| CHAR(n) | CHARACTER(n) | Fixed-length string | |
| DECIMAL(p,s) | Fixed-point number | ||
| DATE | Date (year, month and day) | ||
| DATETIME | Date and time | ||
| DOUBLE | DOUBLE PRECISION | Double precision floating-point number | |
| FLOAT | Single precision floating-point number | ||
| INT | INTEGER | INT4 | 32-bit integer |
| NCHAR(n) | Fixed-length string | ||
| NVARCHAR(n) | Variable-length string | ||
| NUMERIC(p,s) | Fixed-point number | ||
| NUMBER(p,s) | Fixed-point number | ||
| PLS_INTEGER | 32-bit integer | ||
| REAL | Single precision floating-point number | ||
| RECORD | Arbitrary record | ||
| SIMPLE_DOUBLE | Double precision floating-point number | ||
| SIMPLE_FLOAT | Single precision floating-point number | ||
| SIMPLE_INTEGER | 32-bit integer | ||
| SMALLINT | INT2 | 16-bit integer | |
| SYS_REFCURSOR | Cursor variable | ||
| TIMESTAMP | Date and time | ||
| TINYINT | 8-bit integer | ||
| VARCHAR(n) | VARCHAR(max) | Variable-length string | |
| VARCHAR2(n) | Variable-length string | ||
| UTL_FILE.FILE_TYPE | File handle | ||
Data Type Conversion
If CREATE TABLE contains a data type that is not supported by Hive, it is automatically converted by HPL/SQL.
Currently HPL/SQL performs the following conversions:
| Source | Hive SQL |
| BIT | TINYINT |
| DATETIME | TIMESTAMP |
| INT(n) | INT |
| INT2 | SMALLINT |
| INT4 | INT |
| INT8 | BIGINT |
| NCHAR(n) | STRING |
| NVARCHAR(n) | STRING |
| NUMBER(p,s) | DECIMAL(p,s) |
| NUMERIC(p,s) | DECIMAL(p,s) |
| TEXT | STRING |
| VARCHAR(MAX) | STRING |
| VARCHAR2(n) | STRING |
For more information, see On-the-Fly Conversion
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