Fully qualified table error when adding partition

hive> alter table myDB.myTable add partition (log_date='xxxx-xx-xx');
MismatchedTokenException(27!=96)
        at org.antlr.runtime.BaseRecognizer.recoverFromMismatchedToken(BaseRecognizer.java:617)
        at org.antlr.runtime.BaseRecognizer.match(BaseRecognizer.java:115)
        at org.apache.hadoop.hive.ql.parse.HiveParser.alterStatementSuffixExchangePartition(HiveParser.java:13264)
        at org.apache.hadoop.hive.ql.parse.HiveParser.alterTableStatementSuffix(HiveParser.java:6851)
        at org.apache.hadoop.hive.ql.parse.HiveParser.alterStatement(HiveParser.java:6552)
        at org.apache.hadoop.hive.ql.parse.HiveParser.ddlStatement(HiveParser.java:2189)
        at org.apache.hadoop.hive.ql.parse.HiveParser.execStatement(HiveParser.java:1398)
        at org.apache.hadoop.hive.ql.parse.HiveParser.statement(HiveParser.java:1036)
        at org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:199)
        at org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:166)
        at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:409)
        at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:323)
        at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:980)
        at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1045)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:916)
        at org.apache.hadoop.hive.ql.Driver.run(Driver.java:906)
        at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:268)
        at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:220)
        at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:423)
        at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:793)
        at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:686)
        at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:625)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:606)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
FAILED: ParseException line 1:32 mismatched input 'add' expecting KW_EXCHANGE near 'myTable' in alter exchange partition
hive> use myDB;
OK
Time taken: 0.009 seconds
hive> alter table myTable add partition (log_date='xxxx-xx-xx');
OK
Time taken: 0.157 seconds