我无法用主键或非空的约束创建表。没有约束,我可以成功地创建表。
我发现在2.1.0中,配置单元支持主键/外键约束作为createtable命令的一部分,我的版本是2.3.0。下面是示例代码:
create table test3(a int primary key)
这将返回以下错误消息:
MismatchedTokenException(221!=347)
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.createTableStatement(HiveParser.java:6179)
at org.apache.hadoop.hive.ql.parse.HiveParser.ddlStatement(HiveParser.java:3808)
at org.apache.hadoop.hive.ql.parse.HiveParser.execStatement(HiveParser.java:2382)
at org.apache.hadoop.hive.ql.parse.HiveParser.statement(HiveParser.java:1333)
at org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:204)
at org.apache.hadoop.hive.ql.parse.ParseUtils.parse(ParseUtils.java:77)
at org.apache.hadoop.hive.ql.parse.ParseUtils.parse(ParseUtils.java:70)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:468)
at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1316)
at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1456)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1236)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1226)
at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:233)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:184)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:403)
at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:821)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:759)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:686)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
FAILED: ParseException line 1:25 mismatched input 'primary' expecting ) near 'int' in create table statement
我正在使用Hive2.3.0和Hadoop2.7.3。
1条答案
按热度按时间fiei3ece1#
您必须使用下面的命令创建主键
由于这些约束未经验证,因此上游系统需要在加载到配置单元之前确保数据完整性。