We used output list to compare two LogicalProperties before. Since join reorder will change the children order of a join plan and caused output list changed. the two join plan will not equals anymore in memo although they should be. So we must add a project on the new join to keep the LogicalProperties the same.
This PR changes the equals and hashCode funtions of LogicalProperties. use a set of output to compare two LogicalProperties. Then we do not need add the top peoject anymore. This help us keep memo simple and efficient.
Fix _delete_sign_idx and _seq_col_idx when append_column or build_schema when load.
Tablet schema cache support recycle when schema sptr use count equals 1.
Add a http interface for flink-connector to sync ddl.
Improve tablet->tablet_schema() by max_version_schema.
actual result
select cast("0.0000031417" as date);
+------------------------------+
| CAST('0.0000031417' AS DATE) |
+------------------------------+
| 2000-00-00 |
+------------------------------+
expect result
select cast("0.0000031417" as date);
+------------------------------+
| CAST('0.0000031417' AS DATE) |
+------------------------------+
| NULL |
+------------------------------+
support distinct count with group by clause.
for example:
SELECT count(distinct c_custkey + 1) FROM customer group by c_nation;
TODO: support distinct count without group by clause.
In compute level, CHAR type will shrink suffix zeros.
To keep the logic the same as CHAR type, we also shrink for ARRAY or ARRAY<ARRAY> types.
Co-authored-by: cambyzju <zhuxiaoli01@baidu.com>
in some case, the output slots of agg info may be materialized by call SlotDescriptor's materializeSrcExpr method, but not the intermediate slots. This pr set intermediate slots materialized info to keep consistent with output slots.
# Proposed changes
First step of #12303
## Problem summary
This is the first step for supporting rollup index selection for aggregate/unique key OLAP table.
This PR aims to select rollup index when the aggregate node is present and the aggregate function matches the value type. So pre-aggregation is turned on by default. Cases that pre-aggregation should be turned off will be addressed in the next PR.
Main steps for rollup index selection:
1. filter rollup indexes with all the required columns.
2. filter rollup indexes that match the key prefix most.
3. order the rollup indexes by row count, column count, rollup index id.
TODO remaining:
1. address cases that pre-aggregation should be turned off. (next PR)
2. add more test cases.
Refactor
- Add `Project.getSlotToProducer` to extract a map from the project output slot to its producing expression.
- Add `Filter.getConjuncts` to split the filter condition to conjunctive predicates.
- Move the usage of `ExpressionReplacer` to `ExpressionUtils.replace(expr, replaceMap)` to simplify the code.
When the current non-correlated subquery is executed, an error will be reported that the corresponding column cannot be found.
The reason is that the tupleID of the child obtained in visitPhysicalNestedLoopJoin is not consistent with the child.
The non-correlated subquery will trigger this bug because it uses crossJoin.
At the same time, sub-query regression tests for non-associative and complex scenarios have been added
Co-authored-by: morrySnow <morrysnow@126.com>
In the earlier PR #11812 , we split join condition into two parts: hash join conjuncts and other condition. But we forgot to translate other condition into other conjuncts in HashJoinNode of legacy planner. So we get wrong result if query has other condition on join node. Such as:
SELECT * FROM lineorder INNER JOIN part ON lo_partkey = p_partkey WHERE lo_orderkey > p_size;
Implement the having clause for Nereids Planner.
NOTE:
This PR aims at making Nereids Planner generate the correct logical plan and physical plan only. The runtime correctness is not the goal in this PR due to GROUP BY is not ready in Nereids Planner.
Added regression test of sub-queries. Currently only associated sub-queries are added. Non-associated sub-queries will be added after project revision.
