HappenLee commented on code in PR #22823:
URL: https://github.com/apache/doris/pull/22823#discussion_r1290841050
##########
be/src/vec/functions/if.cpp:
##########
@@ -494,6 +493,19 @@ class FunctionIf : public IFunction {
cond_column.column = materialize_column_if_const(cond_column.column);
const ColumnWithTypeAndName& arg_cond =
block.get_by_position(arguments[0]);
+ if (auto* then_is_const =
check_and_get_column<ColumnConst>(*arg_then.column)) {
+ if (then_is_const->only_null() == false &&
+
check_and_get_column<ColumnNullable>(then_is_const->get_data_column())) {
+ arg_then.column = then_is_const->get_data_column_ptr();
+ }
+ }
+ if (auto* else_is_const =
check_and_get_column<ColumnConst>(*arg_else.column)) {
+ if (else_is_const->only_null() == false &&
+
check_and_get_column<ColumnNullable>(else_is_const->get_data_column())) {
+ arg_else.column = else_is_const->get_data_column_ptr();
Review Comment:
the data_column length is 1，may cause bug in block
##########
be/src/vec/functions/if.cpp:
##########
@@ -494,6 +493,19 @@ class FunctionIf : public IFunction {
cond_column.column = materialize_column_if_const(cond_column.column);
const ColumnWithTypeAndName& arg_cond =
block.get_by_position(arguments[0]);
+ if (auto* then_is_const =
check_and_get_column<ColumnConst>(*arg_then.column)) {
+ if (then_is_const->only_null() == false &&
+
check_and_get_column<ColumnNullable>(then_is_const->get_data_column())) {
+ arg_then.column = then_is_const->get_data_column_ptr();
+ }
+ }
+ if (auto* else_is_const =
check_and_get_column<ColumnConst>(*arg_else.column)) {
+ if (else_is_const->only_null() == false &&
+
check_and_get_column<ColumnNullable>(else_is_const->get_data_column())) {
+ arg_else.column = else_is_const->get_data_column_ptr();
Review Comment:
the data_column length is 1，may cause bug in block
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