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https://issues.apache.org/jira/browse/SPARK-54914?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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shubham_bhusate updated SPARK-54914:
------------------------------------
Description:
The pipe syntax DROP operator currently fails with a parse error when trying to
drop nested struct fields using qualified names (e.g., `drop col.i1`).
**Current Behavior:**
sql
CREATE TABLE st(x INT, col STRUCT<i1:INT, i2:INT>);
INSERT INTO st VALUES (1, (2, 3));
TABLE st |> drop col.i1;
Error: PARSE_SYNTAX_ERROR: Syntax error at or near '.'
was:
Enable the DROP operator in SQL pipe syntax to accept qualified column names
(e.g., table.column) in addition to unqualified column names.
When using the pipe syntax DROP operator to remove a field using a qualified
name, Spark throws a ParseException instead of dropping the specified field.
h4. Steps to Reproduce
* Create a temporary view:
spark.sql("""
Create or Replace temp view st as
Select 1 as i1, 2 as i2, 3 as i3
""")
* Attempt to drop the field using a qualified name with pipe syntax:
spark.sql("""
TABLE st
|> as s
|> Drop s.i1
""")
*Expected behaviour:*
It should have successfully dropped the column i1 from the table.
h4. Actual Behavior
Spark throws a parse error:
pyspark.errors.exceptions.captured.ParseException:
[PARSE_SYNTAX_ERROR] Syntax error at or near '.'. SQLSTATE: 42601 (line 4, pos
9)
> Pipe Syntax - Qualified Column Names in DROP Operator
> -----------------------------------------------------
>
> Key: SPARK-54914
> URL: https://issues.apache.org/jira/browse/SPARK-54914
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 4.1.0
> Reporter: shubham_bhusate
> Priority: Major
> Labels: pull-request-available
>
> The pipe syntax DROP operator currently fails with a parse error when trying
> to drop nested struct fields using qualified names (e.g., `drop col.i1`).
> **Current Behavior:**
> sql
> CREATE TABLE st(x INT, col STRUCT<i1:INT, i2:INT>);
> INSERT INTO st VALUES (1, (2, 3));
> TABLE st |> drop col.i1;
> Error: PARSE_SYNTAX_ERROR: Syntax error at or near '.'
>
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