Data Type Conversion
Certain data types in the database support implicit data type conversions, such as assignments and parameters called by functions. For other data types, you can use the type conversion functions provided by openGauss, such as the CAST function, to forcibly convert them.
openGauss lists common implicit data type conversions in Table 1.
NOTICE:
The valid value range of DATE supported by openGauss is from 4713 B.C. to 294276 A.D.
Table 1 Implicit data type conversions
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