support inserting into bool[]

conn.go

@@ -549,7 +549,7 @@ func (c *Conn) sendPreparedQuery(ps *PreparedStatement, arguments ...interface{}
 			wbuf.WriteInt16(TextFormatCode)
 		default:
 			switch oid {
-			case BoolOid, ByteaOid, Int2Oid, Int4Oid, Int8Oid, Float4Oid, Float8Oid, TimestampTzOid, Int2ArrayOid, Int4ArrayOid, Int8ArrayOid, Float4ArrayOid, Float8ArrayOid, TextArrayOid, VarcharArrayOid, OidOid:
+			case BoolOid, ByteaOid, Int2Oid, Int4Oid, Int8Oid, Float4Oid, Float8Oid, TimestampTzOid, BoolArrayOid, Int2ArrayOid, Int4ArrayOid, Int8ArrayOid, Float4ArrayOid, Float8ArrayOid, TextArrayOid, VarcharArrayOid, OidOid:
 				wbuf.WriteInt16(BinaryFormatCode)
 			default:
 				wbuf.WriteInt16(TextFormatCode)
@@ -593,6 +593,8 @@ func (c *Conn) sendPreparedQuery(ps *PreparedStatement, arguments ...interface{}
 				err = encodeTimestampTz(wbuf, arguments[i])
 			case TimestampOid:
 				err = encodeTimestamp(wbuf, arguments[i])
+			case BoolArrayOid:
+				err = encodeBoolArray(wbuf, arguments[i])
 			case Int2ArrayOid:
 				err = encodeInt2Array(wbuf, arguments[i])
 			case Int4ArrayOid:

conn_test.go

@@ -515,3 +515,19 @@ func TestCommandTag(t *testing.T) {
 		}
 	}
 }
+
+func TestInsertBoolArray(t *testing.T) {
+	t.Parallel()
+
+	conn := mustConnect(t, *defaultConnConfig)
+	defer closeConn(t, conn)
+
+	if results := mustExec(t, conn, "create temporary table foo(spice bool[]);"); results != "CREATE TABLE" {
+		t.Error("Unexpected results from Exec")
+	}
+
+	// Accept parameters
+	if results := mustExec(t, conn, "insert into foo(spice) values($1)", []bool{true, false, true}); results != "INSERT 0 1" {
+		t.Errorf("Unexpected results from Exec: %v", results)
+	}
+}

values.go

@@ -21,6 +21,7 @@ const (
 	OidOid          = 26
 	Float4Oid       = 700
 	Float8Oid       = 701
+	BoolArrayOid    = 1000
 	Int2ArrayOid    = 1005
 	Int4ArrayOid    = 1007
 	TextArrayOid    = 1009
@@ -1232,6 +1233,33 @@ func decodeInt2Array(vr *ValueReader) []int16 {
 	return a
 }
 
+func encodeBoolArray(w *WriteBuf, value interface{}) error {
+	slice, ok := value.([]bool)
+	if !ok {
+		return fmt.Errorf("Expected []bool, received %T", value)
+	}
+
+	size := 20 + len(slice)*5
+	w.WriteInt32(int32(size))
+
+	w.WriteInt32(1)                 // number of dimensions
+	w.WriteInt32(0)                 // no nulls
+	w.WriteInt32(BoolOid)           // type of elements
+	w.WriteInt32(int32(len(slice))) // number of elements
+	w.WriteInt32(1)                 // index of first element
+
+	for _, v := range slice {
+		w.WriteInt32(1)
+		var b byte
+		if v {
+			b = 1
+		}
+		w.WriteByte(b)
+	}
+
+	return nil
+}
+
 func encodeInt2Array(w *WriteBuf, value interface{}) error {
 	slice, ok := value.([]int16)
 	if !ok {