Merge pull request #385 from taniabogatsch/revert-pr

Revert PR #351 for v2

Author: taniabogatsch

appender_test.go

@@ -933,40 +933,3 @@ func appendNestedData[T require.TestingT](t T, a *Appender, rowsToAppend []neste
 	}
 	require.NoError(t, a.Flush())
 }
-
-var types = map[reflect.Type]string{
-	reflect.TypeFor[int8](): "TINYINT",
-}
-
-func benchmarkAppenderSingle[T any](v T) func(*testing.B) {
-	return func(b *testing.B) {
-		if _, ok := types[reflect.TypeFor[T]()]; !ok {
-			b.Fatal("Type not defined in table:", reflect.TypeFor[T]())
-		}
-		tableSQL := fmt.Sprintf(createSingleTableSQL, types[reflect.TypeFor[T]()])
-		c, db, conn, a := prepareAppender(b, tableSQL)
-		defer cleanupAppender(b, c, db, conn, a)
-
-		const rowsToAppend = 2048
-		vec := [rowsToAppend]T{}
-		for i := 0; i < 2048; i++ {
-			vec[i] = v
-		}
-
-		b.ResetTimer()
-		for n := 0; n < b.N; n++ {
-			for i := 0; i < rowsToAppend; i++ {
-				if err := a.AppendRow(v); err != nil {
-					b.Error(err)
-				}
-			}
-		}
-		b.StopTimer()
-	}
-}
-
-func BenchmarkAppenderSingle(b *testing.B) {
-	b.Run("int8", benchmarkAppenderSingle[int8](0))
-}
-
-const createSingleTableSQL = `CREATE TABLE test (nested_int_list %s)`

data_chunk.go

@@ -2,8 +2,6 @@ package duckdb
 
 import "C"
 import (
-	"sync"
-
 	"github.com/marcboeker/go-duckdb/mapping"
 )
 
@@ -19,7 +17,10 @@ type DataChunk struct {
 	size int
 }
 
-var GetDataChunkCapacity = sync.OnceValue[int](func() int { return int(mapping.VectorSize()) })
+// GetDataChunkCapacity returns the capacity of a data chunk.
+func GetDataChunkCapacity() int {
+	return int(mapping.VectorSize())
+}
 
 // GetSize returns the internal size of the data chunk.
 func (chunk *DataChunk) GetSize() int {