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https://issues.apache.org/jira/browse/SPARK-27906?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yesheng Ma updated SPARK-27906:
-------------------------------
Description:
The {{CREATE LOCAL TEMPORARY TABLE}} statement is actually not supported in
Spark SQL. However, when a user queries such a statement, the error message is
confusing. For example, the error message for
{code:sql}
CREATE LOCAL TEMPORARY TABLE my_table (x INT);
{code}
is
{code:java}
no viable alternative at input 'CREATE LOCAL'(line 1, pos 7)
{code}
which is misleading.
One possible way to fix is to explicitly capture these statements in a grammar
rule and print user-friendly error message such as
{code:java}
CREATE LOCAL TEMPORARY TABLE statements are not supported.
{code}
was:
{{SHOW VIEW}} statement is actually not supported in Spark SQL. However, when a
user quries such a statement, the error message is confusing. For example, the
error message for
{code:sql}
SHOW VIEWS IN my_database
{code}
is
{code:java}
missing 'FUNCTIONS' at 'IN'(line 1, pos 11)
{code}
which is misleading.
One possible way to fix is to explicitly capture these statements in a grammar
rule and print user-friendly error message such as
{code:java}
SHOW VIEW statements are not supported.
{code}
> Improve parser error message for CREATE LOCAL TEMPORARY TABLE statement
> -----------------------------------------------------------------------
>
> Key: SPARK-27906
> URL: https://issues.apache.org/jira/browse/SPARK-27906
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Yesheng Ma
> Priority: Major
>
> The {{CREATE LOCAL TEMPORARY TABLE}} statement is actually not supported in
> Spark SQL. However, when a user queries such a statement, the error message
> is confusing. For example, the error message for
> {code:sql}
> CREATE LOCAL TEMPORARY TABLE my_table (x INT);
> {code}
> is
> {code:java}
> no viable alternative at input 'CREATE LOCAL'(line 1, pos 7)
> {code}
> which is misleading.
>
> One possible way to fix is to explicitly capture these statements in a
> grammar rule and print user-friendly error message such as
> {code:java}
> CREATE LOCAL TEMPORARY TABLE statements are not supported.
> {code}
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