Krisztian Kasa

[CALCITE-4694] Specify custom ProjectFactory for RelOptMaterialization

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Add new constructor to `RelOptMaterialization` with a parameter of `RelFactories.ProjectFactory` to specify custom ProjectFactory. Please review: @kgyrtkirk, @zabetak

HIVE-26524: Use Calcite to remove sections of a query plan known never produces rows

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### What changes were proposed in this pull request? * Currently Hive represents the empty result operator with `HiveSortLimit(fetch=0)`. Change this to `HiveValues(tuples[])` like Calcite does. * Improve and extend...

HIVE-28006: Materialized view with aggregate function incorrectly shows it allows incremental rebuild

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### What changes were proposed in this pull request? 1. Materialized view incremental rebuild plans depend on * the MV definitions * and whether the source tables has any delete...

[CALCITE-6453] Simplify casts which are result of constant reduction

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In `RexSimplify.simplifyCast` after constant reduction return the reduced expressions operand as result if the reduced expression and it's operand type is equal but different in nullability.

[WIP] HIVE-12203: CBO (Calcite Return Path): groupby_grouping_id2.q returns wrong results

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### What changes were proposed in this pull request? ### Why are the changes needed? ### Does this PR introduce _any_ user-facing change? ### Is the change a dependency upgrade?...

HIVE-28264: OOM/slow compilation when query contains SELECT clauses with nested expressions

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### What changes were proposed in this pull request? Apply changes in [CALCITE-6513](https://issues.apache.org/jira/browse/CALCITE-6513) into `HiveFilterProjectTransposeRule`. ### Why are the changes needed? Applying the rule to nested project operators that contain...

HIVE-28572: Support Distribute by and Cluster by clauses in CBO

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### What changes were proposed in this pull request? Currently CBO is disabled when a query has `DISTRIBUTE BY` or `CLUSTER BY` clauses. This patch lift this limitation by implementing...

HIVE-21481: MERGE correctness issues with null safe equality

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### What changes were proposed in this pull request? Merge statements in Hive are rewritten to multi-insert statements (Merge on Read) or insert select statements where the select clause has...

HIVE-26505: Case When Some result data is lost when there are common column conditions and partitioned column conditions

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### What changes were proposed in this pull request? ### Why are the changes needed? ### Does this PR introduce _any_ user-facing change? ### Is the change a dependency upgrade?...

HIVE-28773: CBO fails when a materialized view is dropped but its pre-compiled plan remains in the registry.

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### What changes were proposed in this pull request? * The materialized view registry is initialized by loading all MVs from HMS that are enabled for query rewrite and precompiled....