Github user JamesRTaylor commented on a diff in the pull request:

    https://github.com/apache/phoenix/pull/104#discussion_r36442491
  
    --- Diff: phoenix-core/src/main/java/org/apache/phoenix/util/ScanUtil.java 
---
    @@ -657,6 +660,22 @@ public static PName 
padTenantIdIfNecessary(RowKeySchema schema, boolean isSalted
             return tenantId;
         }
     
    +    public static byte[] getTenantIdBytes(RowKeySchema schema, boolean 
isSalted, PName tenantId)
    +            throws SQLException {
    +        int pkPos = isSalted ? 1 : 0;
    +        Field field = schema.getField(pkPos);
    +        PDataType dataType = field.getDataType();
    +        byte[] convertedValue;
    +        try {
    +            Object value = dataType.toObject(tenantId.getString());
    +            convertedValue = dataType.toBytes(value);
    --- End diff --
    
    You can use the following code to pad the convertedValue (this will be a 
noop for types that aren't padded):
    
        ImmutableBytesWritable ptr = new ImmutableBytesWritable(convertedValue);
        dataType.pad(ptr, field.getMaxLength(), field.getSortOrder());
        convertedValue = ByteUtil.copyKeyBytesIfNecessary(ptr);


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