In statement for filter (#1883)

### What problem does this PR solve?

- Fix : IN statement also supports queries with the left operand being a
constant.
- Add test file for IN statement.

Issue #1839 

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] Test cases

src/executor/expression/expression_evaluator.cpp

@@ -199,15 +199,22 @@ void ExpressionEvaluator::Execute(const SharedPtr<InExpression> &expr, SharedPtr
     SharedPtr<ColumnVector> &left_state_output = left_state->OutputColumnVector();
     Execute(left_expression, left_state, left_state_output);
 
-    SizeT left_result_count = left_state_output->Size();
+    //in expression evaluates to a constant
+    if(left_state->OutputColumnVector()->vector_type() == ColumnVectorType::kConstant) {
+        bool in_result = expr->Exists(left_state_output->GetValue(0));
+        for(SizeT idx = 0; idx < input_data_block_->row_count(); idx++) {
+            output_column_vector->buffer_->SetCompactBit(idx, in_result);
+        }
+        return;
+    }
     if(expr->in_type() == InType::kIn) {
-        for(SizeT idx = 0; idx < left_result_count; idx++) {
+        for(SizeT idx = 0; idx < input_data_block_->row_count(); idx++) {
             output_column_vector->buffer_->SetCompactBit(idx, expr->Exists(left_state_output->GetValue(idx)));
         }
         return;
     }
     if (expr->in_type() == InType::kNotIn) {
-        for(SizeT idx = 0; idx < left_result_count; idx++) {
+        for(SizeT idx = 0; idx < input_data_block_->row_count(); idx++) {
             output_column_vector->buffer_->SetCompactBit(idx, !expr->Exists(left_state_output->GetValue(idx)));
         }
         return;

test/sql/dql/function/in/in.slt

@@ -0,0 +1,79 @@
+statement ok
+DROP TABLE IF EXISTS test_in;
+
+statement ok
+CREATE TABLE test_in(num INTEGER, name VARCHAR, score FLOAT);
+
+statement ok
+INSERT INTO test_in values
+(1, 'Tom', 90.5),
+(2, 'Henry', 70.0),
+(3, 'james', 75.0),
+(4, 'Toby', 92.0),
+(5, 'Thomas', 72.5),
+(6, 'Charlie', 69.0),
+(7, 'Chris', 88.0),
+(8, 'Bill', 90.0),
+(9, 'Stefan', 86.5),
+(10, 'steve', 86.0);
+
+query III
+SELECT * FROM test_in where num in (3, 6, 9);
+----
+3 james 75.000000
+6 Charlie 69.000000
+9 Stefan 86.500000
+
+query III
+SELECT * FROM test_in where name in ('Tom', 'Toby', 'stevE');
+----
+1 Tom 90.500000
+4 Toby 92.000000
+
+query III
+SELECT * FROM test_in where score in ('90.5', '70.0', '86.5');
+----
+1 Tom 90.500000
+2 Henry 70.000000
+9 Stefan 86.500000
+
+# some cast
+query III
+SELECT * FROM test_in where num in ('3', '6', '9');
+----
+3 james 75.000000
+6 Charlie 69.000000
+9 Stefan 86.500000
+
+query III
+SELECT * FROM test_in where score in ('92', '70', '86');
+----
+2 Henry 70.000000
+4 Toby 92.000000
+10 steve 86.000000
+
+# some functions in left operand
+query III
+SELECT * FROM test_in where num + 2 in ('3', '4', '5');
+----
+1 Tom 90.500000
+2 Henry 70.000000
+3 james 75.000000
+
+# constant in left operand
+query III
+SELECT * FROM test_in where 4 in ('3', '4', '5');
+----
+1 Tom 90.500000
+2 Henry 70.000000
+3 james 75.000000
+4 Toby 92.000000
+5 Thomas 72.500000
+6 Charlie 69.000000
+7 Chris 88.000000
+8 Bill 90.000000
+9 Stefan 86.500000
+10 steve 86.000000
+
+statement ok
+DROP TABLE test_in;