PavithraRamachandran opened a new pull request #32996:
URL: https://github.com/apache/spark/pull/32996
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### What changes were proposed in this pull request?
When we use a Select filter query with struct complex type and use a
different case in the query, nested column aliasing maps the name a different
and throws exception
Reproduce Scenario:
create table Struct_com (CUST_ID string, YEAR int, MONTH int, AGE int,
GENDER string, EDUCATED string, IS_MARRIED string,
STRUCT_INT_DOUBLE_STRING_DATE
struct<ID:int,SALARY:double,COUNTRY:STRING,CHECK_DATE:string>,CARD_COUNT
int,DEBIT_COUNT int, CREDIT_COUNT int, DEPOSIT double, HQ_DEPOSIT double)
stored as parquet;
SELECT
struct_int_double_string_date.COUNTRY,struct_int_double_string_date.CHECK_DATE,struct_int_double_string_date.CHECK_DATE,struct_in
t_double_string_date.Country, SUM(struct_int_double_string_date.id) AS Sum
FROM (select * from Struct_com) SUB_QRY WHERE struct_int_double_string_date.id
> 5700 GRO UP BY
struct_int_double_string_date.COUNTRY,struct_int_double_string_date.CHECK_DATE,struct_int_double_string_date.CHECK_DATE,struct_int_double_string_date.Country
ORDER BY struct_int_double_string_date.COUNTRY
asc,struct_int_double_string_date.CHECK_DATE
asc,struct_int_double_string_date.CHECK_DATE asc, struct_int_double_stri
ng_date.Country asc;
Caused by: java.lang.RuntimeException: Couldn't find
_gen_alias_139930#139930 in
_gen_alias_139928#139928,_gen_alias_139929#139929,sum(cast(_gen_alias_139931#13993
1 as bigint))#139901L
at scala.sys.package$.error(package.scala:30)
at
org.apache.spark.sql.catalyst.expressions.BindReferences$$anonfun$bindReference$1.$anonfun$applyOrElse$1(BoundAttribute.scala:81)
at org.apache.spark.sql.catalyst.errors.package$.attachTree(package.scala:52)
... 90 more (state=,code=0)
### Why are the changes needed?
Select filter query with complex struct fails when query uses case
insensitive field name.
Issue is present only in 3.1 branch.
### Does this PR introduce _any_ user-facing change?
NO
### How was this patch tested?
UT
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