[doris] branch master updated: [Opt](Vec) Support const column check nullable and remove nullable (#13020)

[yiguolei]

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yiguolei pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/doris.git


The following commit(s) were added to refs/heads/master by this push:
     new 36bf8ad3eb [Opt](Vec) Support const column check nullable and remove 
nullable (#13020)
36bf8ad3eb is described below

commit 36bf8ad3eb81bbacfbee283e38510a3226bbdb11
Author: HappenLee <happen...@hotmail.com>
AuthorDate: Thu Sep 29 08:39:19 2022 +0800

    [Opt](Vec) Support const column check nullable and remove nullable (#13020)
---
 be/src/vec/columns/column_const.h      |  2 +-
 be/src/vec/columns/column_nullable.cpp | 10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/be/src/vec/columns/column_const.h 
b/be/src/vec/columns/column_const.h
index 75561ae3e8..f001150bee 100644
--- a/be/src/vec/columns/column_const.h
+++ b/be/src/vec/columns/column_const.h
@@ -184,7 +184,7 @@ public:
         return false;
     }
 
-    // bool is_nullable() const override { return is_column_nullable(*data); }
+    //    bool is_nullable() const override { return 
is_column_nullable(*data); }
     bool only_null() const override { return data->is_null_at(0); }
     bool is_numeric() const override { return data->is_numeric(); }
     bool is_fixed_and_contiguous() const override { return 
data->is_fixed_and_contiguous(); }
diff --git a/be/src/vec/columns/column_nullable.cpp 
b/be/src/vec/columns/column_nullable.cpp
index 0f898b60b4..ab37eb3f59 100644
--- a/be/src/vec/columns/column_nullable.cpp
+++ b/be/src/vec/columns/column_nullable.cpp
@@ -570,6 +570,16 @@ ColumnPtr remove_nullable(const ColumnPtr& column) {
     if (is_column_nullable(*column)) {
         return reinterpret_cast<const 
ColumnNullable*>(column.get())->get_nested_column_ptr();
     }
+
+    if (is_column_const(*column)) {
+        auto& column_nested = assert_cast<const 
ColumnConst&>(*column).get_data_column_ptr();
+        if (is_column_nullable(*column_nested)) {
+            return ColumnConst::create(
+                    assert_cast<const 
ColumnNullable&>(*column_nested).get_nested_column_ptr(),
+                    column->size());
+        }
+    }
+
     return column;
 }
 


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