diff --git a/quesma/ingest/processor.go b/quesma/ingest/processor.go
index c9183671b..0949bfc36 100644
--- a/quesma/ingest/processor.go
+++ b/quesma/ingest/processor.go
@@ -934,7 +934,7 @@ func NewIngestProcessor(cfg *config.QuesmaConfiguration, chDb *sql.DB, phoneHome
 
 func NewOnlySchemaFieldsCHConfig() *chLib.ChTableConfig {
 	return &chLib.ChTableConfig{
-		HasTimestamp:                          false,
+		HasTimestamp:                          true,
 		TimestampDefaultsNow:                  true,
 		Engine:                                "MergeTree",
 		OrderBy:                               "(" + `"@timestamp"` + ")",
@@ -944,13 +944,12 @@ func NewOnlySchemaFieldsCHConfig() *chLib.ChTableConfig {
 		Attributes:                            []chLib.Attribute{chLib.NewDefaultStringAttribute()},
 		CastUnsupportedAttrValueTypesToString: false,
 		PreferCastingToOthers:                 false,
-		Settings:                              "allow_nullable_key=true",
 	}
 }
 
 func NewDefaultCHConfig() *chLib.ChTableConfig {
 	return &chLib.ChTableConfig{
-		HasTimestamp:         false,
+		HasTimestamp:         true,
 		TimestampDefaultsNow: true,
 		Engine:               "MergeTree",
 		OrderBy:              "(" + `"@timestamp"` + ")",
@@ -965,7 +964,6 @@ func NewDefaultCHConfig() *chLib.ChTableConfig {
 		},
 		CastUnsupportedAttrValueTypesToString: true,
 		PreferCastingToOthers:                 true,
-		Settings:                              "allow_nullable_key=true",
 	}
 }
 
@@ -978,7 +976,6 @@ func NewChTableConfigNoAttrs() *chLib.ChTableConfig {
 		Attributes:                            []chLib.Attribute{},
 		CastUnsupportedAttrValueTypesToString: true,
 		PreferCastingToOthers:                 true,
-		Settings:                              "allow_nullable_key=true",
 	}
 }
 
@@ -996,6 +993,5 @@ func NewChTableConfigFourAttrs() *chLib.ChTableConfig {
 		},
 		CastUnsupportedAttrValueTypesToString: true,
 		PreferCastingToOthers:                 true,
-		Settings:                              "allow_nullable_key=true",
 	}
 }
diff --git a/quesma/model/base_visitor.go b/quesma/model/base_visitor.go
index 6d3000141..88b2cede6 100644
--- a/quesma/model/base_visitor.go
+++ b/quesma/model/base_visitor.go
@@ -49,7 +49,7 @@ func (v *BaseExprVisitor) VisitTuple(t TupleExpr) interface{} {
 	if v.OverrideVisitTuple != nil {
 		return v.OverrideVisitTuple(v, t)
 	}
-	return NewTupleExpr(v.VisitChildren(t.Exprs))
+	return NewTupleExpr(v.VisitChildren(t.Exprs)...)
 }
 
 func (v *BaseExprVisitor) VisitInfix(e InfixExpr) interface{} {
diff --git a/quesma/quesma/schema_search_after_transformer.go b/quesma/quesma/schema_search_after_transformer.go
index 0c9a3c05d..5effccbe0 100644
--- a/quesma/quesma/schema_search_after_transformer.go
+++ b/quesma/quesma/schema_search_after_transformer.go
@@ -178,8 +178,8 @@ func (s searchAfterStrategyBasicAndFast) transform(query *model.Query, searchAft
 	// But because some fields might be ASC, we need to swap those values in the tuple.
 	fmt.Println("searchAfterParsed", searchAfterParsed)
 	tupleLen := len(searchAfterParsed)
-	lhs := model.NewTupleExpr(make([]model.Expr, tupleLen))
-	rhs := model.NewTupleExpr(make([]model.Expr, tupleLen))
+	lhs := model.NewTupleExpr(make([]model.Expr, tupleLen)...)
+	rhs := model.NewTupleExpr(make([]model.Expr, tupleLen)...)
 	for i, searchAfterValue := range searchAfterParsed {
 		lhs.Exprs[i] = searchAfterValue
 		rhs.Exprs[i] = query.SelectCommand.OrderBy[i].Expr
diff --git a/quesma/quesma/search_test.go b/quesma/quesma/search_test.go
index ec0cd363f..d9b3b4de4 100644
--- a/quesma/quesma/search_test.go
+++ b/quesma/quesma/search_test.go
@@ -1345,7 +1345,7 @@ func TestSearchAfterParameter_sortByMultipleFields(t *testing.T) {
 		},
 		{
 			request:     `{"search_after": [1706551896491, "m3", 3], "size": 3, "track_total_hits": false,  "sort": [{"@timestamp": {"order": "desc"}}, {"message": {"order": "asc"}}, {"bicep_size": {"order": "desc"}}]}`,
-			expectedSQL: `SELECT "@timestamp", "bicep_size", "message" FROM __quesma_table_name WHERE (fromUnixTimestamp64Milli(1706551896491), "message", 3)>("@timestamp", 'm3', "bicep_size") ORDER BY "@timestamp" DESC, "message" ASC, "bicep_size" DESC LIMIT 3`,
+			expectedSQL: `SELECT "@timestamp", "bicep_size", "message" FROM __quesma_table_name WHERE tuple(fromUnixTimestamp64Milli(1706551896491), "message", 3)>tuple("@timestamp", 'm3', "bicep_size") ORDER BY "@timestamp" DESC, "message" ASC, "bicep_size" DESC LIMIT 3`,
 			resultRowsFromDB: [][]any{
 				{someTime, int64(4), "m4"},
 				{someTime, int64(5), "m5"},
@@ -1359,7 +1359,7 @@ func TestSearchAfterParameter_sortByMultipleFields(t *testing.T) {
 		},
 		{
 			request:     `{"search_after": [1706551896491, "m5", 0], "size": 3, "track_total_hits": false,  "sort": [{"@timestamp": {"order": "desc"}}, {"message": {"order": "asc"}}, {"bicep_size": {"order": "desc"}}]}`,
-			expectedSQL: `SELECT "@timestamp", "bicep_size", "message" FROM __quesma_table_name WHERE (fromUnixTimestamp64Milli(1706551896491), "message", 0)>("@timestamp", 'm5', "bicep_size") ORDER BY "@timestamp" DESC, "message" ASC, "bicep_size" DESC LIMIT 3`,
+			expectedSQL: `SELECT "@timestamp", "bicep_size", "message" FROM __quesma_table_name WHERE tuple(fromUnixTimestamp64Milli(1706551896491), "message", 0)>tuple("@timestamp", 'm5', "bicep_size") ORDER BY "@timestamp" DESC, "message" ASC, "bicep_size" DESC LIMIT 3`,
 			resultRowsFromDB: [][]any{
 				{sub(1), int64(0), "m6"},
 				{sub(1), int64(0), "m7"},
@@ -1373,7 +1373,7 @@ func TestSearchAfterParameter_sortByMultipleFields(t *testing.T) {
 		},
 		{
 			request:     `{"search_after": [1706551896491, "m8", 0], "size": 3, "track_total_hits": false,  "sort": [{"@timestamp": {"order": "desc"}}, {"message": {"order": "asc"}}, {"bicep_size": {"order": "desc"}}]}`,
-			expectedSQL: `SELECT "@timestamp", "bicep_size", "message" FROM __quesma_table_name WHERE (fromUnixTimestamp64Milli(1706551896491), "message", 0)>("@timestamp", 'm8', "bicep_size") ORDER BY "@timestamp" DESC, "message" ASC, "bicep_size" DESC LIMIT 3`,
+			expectedSQL: `SELECT "@timestamp", "bicep_size", "message" FROM __quesma_table_name WHERE tuple(fromUnixTimestamp64Milli(1706551896491), "message", 0)>tuple("@timestamp", 'm8', "bicep_size") ORDER BY "@timestamp" DESC, "message" ASC, "bicep_size" DESC LIMIT 3`,
 			resultRowsFromDB: [][]any{
 				{sub(1), int64(0), "m9"},
 				{sub(2), int64(0), "m10"},