diff options
| -rw-r--r-- | Frameworks/SPMySQLFramework/Source/SPMySQLConnection.m | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/Frameworks/SPMySQLFramework/Source/SPMySQLConnection.m b/Frameworks/SPMySQLFramework/Source/SPMySQLConnection.m index b09a27ee..e102c24d 100644 --- a/Frameworks/SPMySQLFramework/Source/SPMySQLConnection.m +++ b/Frameworks/SPMySQLFramework/Source/SPMySQLConnection.m @@ -979,11 +979,28 @@ static uint64_t _elapsedMicroSecondsSinceAbsoluteTime(uint64_t comparisonTime) // connection, it may be overridden by init_connect commands or connection state changes. // Default to latin1 for older server versions. NSString *retrievedEncoding = @"latin1"; + // character_set_results is the charset the strings received from the server will be in if ([variables objectForKey:@"character_set_results"]) { retrievedEncoding = [variables objectForKey:@"character_set_results"]; - } else if ([variables objectForKey:@"character_set"]) { + } + // not used in 4.1+ (?) + else if ([variables objectForKey:@"character_set"]) { retrievedEncoding = [variables objectForKey:@"character_set"]; } + // character_set_client is the charset the server expects strings transmitted by us to be in + else if ([variables objectForKey:@"character_set_client"]) { + retrievedEncoding = [variables objectForKey:@"character_set_client"]; // fallback for sphinxql + } + // character_set_connection is used internally by the server for comparisons. + // String literals (without a cast) will always be converted from character_set_client to character_set_connection first. + // As an example: + // * Use a client with "SET NAMES utf8" + // * Do a "set @@session.character_set_connection = 'latin1';" + // * Finally try a "SELECT '犬';" (also try "select _utf8'犬';" for completeness) + // * The result will just show a "?" + // So even though we told the server that the client uses utf8 and the results + // should be encoded in utf8, too, the character got lost. + // This happened because the server did a roundtrip of utf8 -> latin1 -> utf8. // Update instance variables if (encoding) [encoding release]; |