liyafan82 issues

Results 7 issues of


                                            liyafan82

[CALCITE-4465] Estimate the number of distinct values by predicates

According to our current implementation (`RelMdDistinctRowCount`), estimating the number of distinctive values (NDV) does not make good use of the filter condition. It simply forwards the call to its input...

[CALCITE-4322] Inconsistent parameter types for splittable agg function

Please see the discussions in https://issues.apache.org/jira/browse/CALCITE-4322#

[CALCITE-4155] Simplify IN expression of discrete values

See https://issues.apache.org/jira/browse/CALCITE-4155 After introducing the Sarg framework, we need to support it based on that.

[CALCITE-4191] Improve the logic of creating aggregate calls

According to the current code base, the only way to create AggregateCall objects is by calling one of the two AggregateCall#create methods (other create methods are deprecated). The two create...

[CALCITE-4126] Stackoverflow error when applying JoinCommuteRule (Liya Fan)

See https://issues.apache.org/jira/browse/CALCITE-4126 The reason for stack overflow is that the JoinCommuteRule swaps children indiscriminately, which results in endless firing of the rule. To solve the problem, we modify the rule...

[CALCITE-3976] Generify the DefaultEdge class

Currently, the source and target fields of class DefaultEdge is Object. This makes it necessary for some casts in the code base. In addition, it does not enforce the assertion...

[CALCITE-3901] Introduce an option to disable metadata handler regeneration

According to our investigation, Calcite can produce large performance overhead due to meta data handler regeneration. To illustrate, suppose we want to get the average size of a rel node,...