Minor Description
Unfortunately HIVE-12156 is breaking the following use case:
I do have a table with a uniontype of struct s, such as:
CREATE TABLE `minimal_sample`(
`record_type` string,
`event` uniontype<struct<string_value:string>,struct<int_value:int>>)
In my case, the table comes from an Avro schema which looks like:
'avro.schema.literal'='{\"type\":\"record\",\"name\":\"Minimal\",\"namespace\":\"org.ver.vkanalas.minimalsamp\",\"fields\":[{\"name\":\"record_type\",\"type\":\"string\"},{\"name\":\"event\",\"type\":[{\"type\":\"record\",\"name\":\"a\",\"fields\":[{\"name\":\"string_value\",\"type\":\"string\"}]},{\"type\":\"record\",\"name\":\"b\",\"fields\":[{\"name\":\"int_value\",\"type\":\"int\"}]}]}]}'
I wrote custom UDF (source attached) to cast the union type to one of the struct to access nested elements, such as int_value in my example.
CREATE FUNCTION toSint AS 'org.ver.udf.minimal.StructFromUnionMinimalB';
A simple query with the UDF is working fine. But creating a view with the same select is failing when I'm trying to query it:
CREATE OR REPLACE VIEW minimal_sample_viewB AS SELECT toSint(event).int_value FROM minimal_sample WHERE record_type = 'B';
SELECT * FROM minimal_sample_viewB;
The stack trace is posted below.
I did try to revert (or exclude) HIVE-12156 from the version I'm running and this use case is working fine.
FAILED: SemanticException Line 0:-1 . Operator is only supported on struct or list of struct types 'int_value' in definition of VIEW minimal_sample_viewb [ SELECT null.`int_value` FROM `default`.`minimal_sample` WHERE `minimal_sample`.`record_type` = 'B' ] used as minimal_sample_viewb at Line 3:14 16/01/05 22:49:41 [main]: ERROR ql.Driver: FAILED: SemanticException Line 0:-1 . Operator is only supported on struct or list of struct types 'int_value' in definition of VIEW minimal_sample_viewb [ SELECT null.`int_value` FROM `default`.`minimal_sample` WHERE `minimal_sample`.`record_type` = 'B' ] used as minimal_sample_viewb at Line 3:14 org.apache.hadoop.hive.ql.parse.SemanticException: Line 0:-1 . Operator is only supported on struct or list of struct types 'int_value' in definition of VIEW minimal_sample_viewb [ SELECT null.`int_value` FROM `default`.`minimal_sample` WHERE `minimal_sample`.`record_type` = 'B' ] used as minimal_sample_viewb at Line 3:14 at org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory$DefaultExprProcessor.getXpathOrFuncExprNodeDesc(TypeCheckProcFactory.java:893) at org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory$DefaultExprProcessor.process(TypeCheckProcFactory.java:1321) at org.apache.hadoop.hive.ql.lib.DefaultRuleDispatcher.dispatch(DefaultRuleDispatcher.java:90) at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatchAndReturn(DefaultGraphWalker.java:95) at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.dispatch(DefaultGraphWalker.java:79) at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.walk(DefaultGraphWalker.java:133) at org.apache.hadoop.hive.ql.lib.DefaultGraphWalker.startWalking(DefaultGraphWalker.java:110) at org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory.genExprNode(TypeCheckProcFactory.java:209) at org.apache.hadoop.hive.ql.parse.TypeCheckProcFactory.genExprNode(TypeCheckProcFactory.java:153) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genAllExprNodeDesc(SemanticAnalyzer.java:10500) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genExprNodeDesc(SemanticAnalyzer.java:10455) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genSelectPlan(SemanticAnalyzer.java:3822) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genSelectPlan(SemanticAnalyzer.java:3601) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPostGroupByBodyPlan(SemanticAnalyzer.java:8943) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genBodyPlan(SemanticAnalyzer.java:8898) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:9743) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:9623) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:9650) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:9636) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genOPTree(SemanticAnalyzer.java:10109) at org.apache.hadoop.hive.ql.parse.CalcitePlanner.genOPTree(CalcitePlanner.java:329) at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10120) at org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:211) at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:227) at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:454) at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:314) at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1164) at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1212) at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1101) at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1091) at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:216) at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:168) at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:379) at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:314) at org.apache.hadoop.hive.cli.CliDriver.processReader(CliDriver.java:412) at org.apache.hadoop.hive.cli.CliDriver.processFile(CliDriver.java:428) at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:717) at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:684) at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:624) 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:497) at org.apache.hadoop.util.RunJar.run(RunJar.java:221) at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
Attachments
Attachments
Issue Links
- is broken by
-
HIVE-12156 expanding view doesn't quote reserved keyword
-
- Closed
-