Contents
convert_from()
A function for converting a bytea string to the database encoding
convert_from() is a system function for converting a bytea string containing text from the specified encoding to the database's encoding.
convert_from() was added in PostgreSQL 8.3.
Usage
convert_from (bytesbytea,src_encodingname ) →text
An ERROR is raised if the source encoding is not compatible with the database encoding, or the provided string contains an invalid byte sequence for the source encoding.
convert_to() provides the equivalent functionality for converting a string from the database encoding to a specified encoding. convert provides functionality to convert between user-specified encodings.
Change history
- PostgreSQL 8.3
- added (commit 55613bf9)
Examples
Basic usage example for convert_from():
postgres=# SELECT convert_from('\xe4', 'LATIN1');
convert_from
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ä
(1 row)
Attempting to perform a conversion where the provided string contains an invalid byte sequence for the specified source encoding:
postgres=# SELECT convert_from('\xe4', 'SJIS');
ERROR: invalid byte sequence for encoding "SJIS": 0xe4
References
- PostgreSQL documentation: Text/Binary String Conversion Functions
