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https://issues.apache.org/jira/browse/HIVE-12157?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14973016#comment-14973016
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Pengcheng Xiong commented on HIVE-12157:
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[~sershe], thanks for your comments. I guess [~richarddu] is using a similar
method as I used for special character name, i.e., encoding the special
characters (unicode characters). Thus, we may not need to touch the metastore
backend. But we will take your comments into consideration for sure.
> Support unicode for table/column names
> ---------------------------------------
>
> Key: HIVE-12157
> URL: https://issues.apache.org/jira/browse/HIVE-12157
> Project: Hive
> Issue Type: Bug
> Components: hpl/sql
> Affects Versions: 1.2.1
> Reporter: richard du
> Assignee: richard du
> Priority: Minor
> Attachments: HIVE-12157.01.patch, HIVE-12157.patch
>
>
> Parser will throw exception when I use alias:
> hive> desc test;
> OK
> a int
> b string
> Time taken: 0.135 seconds, Fetched: 2 row(s)
> hive> select a as 行1 from test limit 10;
> NoViableAltException(302@[134:7: ( ( ( KW_AS )? identifier ) | ( KW_AS LPAREN
> identifier ( COMMA identifier )* RPAREN ) )?])
> at org.antlr.runtime.DFA.noViableAlt(DFA.java:158)
> at org.antlr.runtime.DFA.predict(DFA.java:116)
> at
> org.apache.hadoop.hive.ql.parse.HiveParser_SelectClauseParser.selectItem(HiveParser_SelectClauseParser.java:2915)
> at
> org.apache.hadoop.hive.ql.parse.HiveParser_SelectClauseParser.selectList(HiveParser_SelectClauseParser.java:1373)
> at
> org.apache.hadoop.hive.ql.parse.HiveParser_SelectClauseParser.selectClause(HiveParser_SelectClauseParser.java:1128)
> at
> org.apache.hadoop.hive.ql.parse.HiveParser.selectClause(HiveParser.java:45827)
> at
> org.apache.hadoop.hive.ql.parse.HiveParser.selectStatement(HiveParser.java:41495)
> at
> org.apache.hadoop.hive.ql.parse.HiveParser.regularBody(HiveParser.java:41402)
> at
> org.apache.hadoop.hive.ql.parse.HiveParser.queryStatementExpressionBody(HiveParser.java:40413)
> at
> org.apache.hadoop.hive.ql.parse.HiveParser.queryStatementExpression(HiveParser.java:40283)
> at
> org.apache.hadoop.hive.ql.parse.HiveParser.execStatement(HiveParser.java:1590)
> at
> org.apache.hadoop.hive.ql.parse.HiveParser.statement(HiveParser.java:1109)
> at
> org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:202)
> at
> org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:166)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:396)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:308)
> at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1122)
> at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1170)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1059)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1049)
> at
> org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:213)
> at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:165)
> at
> org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:376)
> at
> org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:736)
> at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:681)
> at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:621)
> 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.run(RunJar.java:221)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
> FAILED: ParseException line 1:13 cannot recognize input near 'as' '1' 'from'
> in selection target
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