[MCOL-5275] Implement comparison functions for SELECT clause Created: 2022-10-24  Updated: 2023-07-01

Status: Open
Project: MariaDB ColumnStore
Component/s: PrimProc
Affects Version/s: 22.08.2
Fix Version/s: Icebox

Type: Task Priority: Minor
Reporter: David Hall (Inactive) Assignee: Unassigned
Resolution: Unresolved Votes: 0
Labels: None

Issue Links:
Relates
relates to MCOL-603 sum of col=value fails with Internal ... Closed

 Description   

The following functions aren't supported in the SELECT clause in columnstore
Item::COND_ITEM
Item_func::EQ_FUNC
Item_func::NE_FUNC
Item_func::LT_FUNC
Item_func::LE_FUNC
Item_func::GE_FUNC
Item_func::GT_FUNC
Item_func::LIKE_FUNC
Item_func::BETWEEN
Item_func::IN_FUNC
Item_func::ISNULL_FUNC
Item_func::ISNOTNULL_FUNC
Item_func::NOT_FUNC
Item_func::EQUAL_FUNC

These appear in situations like
SELECT a=1 from t1;
Which would generate a EQ_FUNC.
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