TANG Wen-hui created CALCITE-3115:
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Summary: Cannot add JdbcRules which have different JdbcConvention
to same VolcanoPlanner's RuleSet.
Key: CALCITE-3115
URL: https://issues.apache.org/jira/browse/CALCITE-3115
Project: Calcite
Issue Type: Bug
Components: core
Affects Versions: 1.19.0
Reporter: TANG Wen-hui
Assignee: TANG Wen-hui
When we use Calcite via JDBC to run a sql which involves two difference jdbc
schema:
{code:java}
select * from (select "a",max("b") as max_b, sum("c") as sum_c from
"test"."temp" where "d" > 10 or "b" <> 'hello' group by "a", "e", "f" having
"a" > 100 and max("b") < 20 limit 10) t union select "a", "b","c" from
"test2"."temp2" group by "a","b","c"
{code}
the sql get a plan like that:
{code:java}
EnumerableUnion(all=[false])
JdbcToEnumerableConverter
JdbcProject(a=[$0], MAX_B=[$3], SUM_C=[$4])
JdbcSort(fetch=[10])
JdbcFilter(condition=[<(CAST($3):BIGINT, 20)])
JdbcAggregate(group=[{0, 4, 5}], MAX_B=[MAX($1)], SUM_C=[SUM($2)])
JdbcFilter(condition=[AND(OR(>($3, 10), <>($1, 'hello')), >($0,
100))])
JdbcTableScan(table=[[test, temp]])
EnumerableAggregate(group=[{0, 1, 2}])
JdbcToEnumerableConverter
JdbcTableScan(table=[[test2, temp2]])
{code}
And the EnumerableAggregate for table test2.temp2 cannot be convert to
JdbcAggregate.
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