slim bouguerra created HIVE-16095:
-------------------------------------
Summary: Filter generation is not taking into account the column
type.
Key: HIVE-16095
URL: https://issues.apache.org/jira/browse/HIVE-16095
Project: Hive
Issue Type: Bug
Reporter: slim bouguerra
We are suppose to get alphanumeric comparison when we have a cast to numeric
type. This looks like to be a calcite issue.
{code}
hive> explain select * from login_druid where userid < 2
> ;
OK
Plan optimized by CBO.
Stage-0
Fetch Operator
limit:-1
Select Operator [SEL_1]
Output:["_col0","_col1","_col2"]
TableScan [TS_0]
Output:["__time","userid","num_l"],properties:{"druid.query.json":"{\"queryType\":\"select\",\"dataSource\":\"druid_user_login\",\"descending\":false,\"intervals\":[\"1900-01-01T00:00:00.000Z/3000-01-01T00:00:00.000Z\"],\"filter\":{\"type\":\"bound\",\"dimension\":\"userid\",\"upper\":\"2\",\"upperStrict\":true,\"alphaNumeric\":false},\"dimensions\":[\"userid\"],\"metrics\":[\"num_l\"],\"granularity\":\"all\",\"pagingSpec\":{\"threshold\":16384},\"context\":{\"druid.query.fetch\":false}}","druid.query.type":"select"}
Time taken: 1.548 seconds, Fetched: 10 row(s)
hive> explain select * from login_druid where cast (userid as int) < 2;
OK
Plan optimized by CBO.
Stage-0
Fetch Operator
limit:-1
Select Operator [SEL_1]
Output:["_col0","_col1","_col2"]
TableScan [TS_0]
Output:["__time","userid","num_l"],properties:{"druid.query.json":"{\"queryType\":\"select\",\"dataSource\":\"druid_user_login\",\"descending\":false,\"intervals\":[\"1900-01-01T00:00:00.000Z/3000-01-01T00:00:00.000Z\"],\"filter\":{\"type\":\"bound\",\"dimension\":\"userid\",\"upper\":\"2\",\"upperStrict\":true,\"alphaNumeric\":false},\"dimensions\":[\"userid\"],\"metrics\":[\"num_l\"],\"granularity\":\"all\",\"pagingSpec\":{\"threshold\":16384},\"context\":{\"druid.query.fetch\":false}}","druid.query.type":"select"}
Time taken: 0.27 seconds, Fetched: 10 row(s)
{code}
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