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https://issues.apache.org/jira/browse/PHOENIX-3347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Eric Lomore updated PHOENIX-3347:
---------------------------------
Description:
Current conformance settings do not allow SELECT statements without a FROM
clause
According to the Calcite parser,
{{FROM is mandatory in standard SQL, optional in dialects such as MySQL,
* PostgreSQL. The parser allows SELECT without FROM, but the validator fails
* if conformance is, say, STRICT_2003.}}
{code:title=PhoenixCalciteEmbeddedDriver.java} public Connection
connect(String url, Properties info) throws SQLException {
if (!acceptsURL(url)) {
return null;
}
Properties info2 = new Properties(info);
setPropertyIfNotSpecified(
info2,
CalciteConnectionProperty.TYPE_SYSTEM.camelName(),
PhoenixRelDataTypeSystem.class.getName());
setPropertyIfNotSpecified(
info2,
CalciteConnectionProperty.CONFORMANCE.camelName(),
SqlConformance.ORACLE_10.toString());{code}
Note that the actual failure occurs when the SqlValidator rejects the statement
{{Caused by: org.apache.calcite.sql.validate.SqlValidatorException: SELECT must
have a FROM clause}}
Either need to change conformance or stop supporting SELECT without FROM as
Phoenix currently does.
was:
Current conformance settings do not allow SELECT statements without a FROM
clause
{code:title=PhoenixCalciteEmbeddedDriver.java} public Connection
connect(String url, Properties info) throws SQLException {
if (!acceptsURL(url)) {
return null;
}
Properties info2 = new Properties(info);
setPropertyIfNotSpecified(
info2,
CalciteConnectionProperty.TYPE_SYSTEM.camelName(),
PhoenixRelDataTypeSystem.class.getName());
setPropertyIfNotSpecified(
info2,
CalciteConnectionProperty.CONFORMANCE.camelName(),
SqlConformance.ORACLE_10.toString());{code}
Note that the actual failure occurs when the SqlValidator rejects the statement
{{Caused by: org.apache.calcite.sql.validate.SqlValidatorException: SELECT must
have a FROM clause}}
Either need to change conformance or stop supporting SELECT without FROM as
Phoenix currently does.
> Change conformance or remove SELECT statements without FROM clauses
> -------------------------------------------------------------------
>
> Key: PHOENIX-3347
> URL: https://issues.apache.org/jira/browse/PHOENIX-3347
> Project: Phoenix
> Issue Type: Sub-task
> Reporter: Eric Lomore
> Assignee: Eric Lomore
>
> Current conformance settings do not allow SELECT statements without a FROM
> clause
> According to the Calcite parser,
> {{FROM is mandatory in standard SQL, optional in dialects such as MySQL,
> * PostgreSQL. The parser allows SELECT without FROM, but the validator fails
> * if conformance is, say, STRICT_2003.}}
> {code:title=PhoenixCalciteEmbeddedDriver.java} public Connection
> connect(String url, Properties info) throws SQLException {
> if (!acceptsURL(url)) {
> return null;
> }
>
> Properties info2 = new Properties(info);
> setPropertyIfNotSpecified(
> info2,
> CalciteConnectionProperty.TYPE_SYSTEM.camelName(),
> PhoenixRelDataTypeSystem.class.getName());
> setPropertyIfNotSpecified(
> info2,
> CalciteConnectionProperty.CONFORMANCE.camelName(),
> SqlConformance.ORACLE_10.toString());{code}
> Note that the actual failure occurs when the SqlValidator rejects the
> statement
> {{Caused by: org.apache.calcite.sql.validate.SqlValidatorException: SELECT
> must have a FROM clause}}
> Either need to change conformance or stop supporting SELECT without FROM as
> Phoenix currently does.
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