serde fails when field name starts with underscore
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Key: HIVE-99
URL: https://issues.apache.org/jira/browse/HIVE-99
Project: Hadoop Hive
Issue Type: Bug
Affects Versions: 0.20.0
Reporter: Michi Mutsuzaki
Priority: Minor
Fix For: 0.20.0
(Not sure if this is a metastore bug or serde bug)
For the query:
select count(1) from table
HiveInterface.getSchema() returns:
struct result { string _c0}
DynamicSerDe.initialize() raises a lexical error:
[junit] Lexical error at line 1, column 24. Encountered: "_" (95), after :
""
[junit] org.apache.hadoop.hive.serde2.dynamic_type.TokenMgrError: Lexical
error at line 1, column 24. Encountered: "_" (95), after : ""
[junit] at
org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammarTokenManager.getNextToken(thrift_grammarTokenManager.java:1457)
[junit] at
org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.jj_consume_token(thrift_grammar.java:2233)
[junit] at
org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.Field(thrift_grammar.java:1547)
[junit] at
org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.FieldList(thrift_grammar.java:1501)
[junit] at
org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.Struct(thrift_grammar.java:1171)
[junit] at
org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.TypeDefinition(thrift_grammar.java:497)
[junit] at
org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.Definition(thrift_grammar.java:439)
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