chore: import upstream snapshot with attribution

2026-07-13 12:32:25 +08:00
commit e014feafe1
2285 changed files with 1131979 additions and 0 deletions
@@ -0,0 +1,94 @@
+// Copyright 2024 Dolthub, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package _go
+
+import (
+	"testing"
+
+	"github.com/dolthub/go-mysql-server/sql"
+)
+
+func TestExplain(t *testing.T) {
+	RunScripts(t, []ScriptTest{
+		{
+			Name: "basic explain tests",
+			SetUpScript: []string{
+				`CREATE TABLE t (i INT PRIMARY KEY)`,
+			},
+			Assertions: []ScriptTestAssertion{
+				{
+					Skip:  true, // Our explain output is very different
+					Query: `EXPLAIN SELECT * FROM T;`,
+					Expected: []sql.Row{
+						{"Seq Scan on t  (cost=0.00..35.50 rows=2550 width=4)"},
+					},
+				},
+				{
+					Skip: true, // Need to properly support explain options
+					Query: `
+EXPLAIN 
+(
+	ANALYZE, 
+	VERBOSE, 
+	COSTS, 
+	SETTINGS,
+	BUFFERS,
+	WAL,
+	TIMING,
+	SUMMARY,
+	FORMAT TEXT
+) 
+	SELECT * FROM t;
+`,
+					Expected: []sql.Row{
+						{"Seq Scan on t  (cost=0.00..35.50 rows=2550 width=4)"},
+					},
+				},
+				{
+					Skip: true, // Need to properly support explain options
+					Query: `
+EXPLAIN 
+(
+	ANALYZE ON, 
+	VERBOSE OFF, 
+	COSTS TRUE, 
+	SETTINGS FALSE,
+	BUFFERS,
+	WAL,
+	TIMING,
+	SUMMARY,
+	FORMAT TEXT
+) 
+	SELECT * FROM t;
+`,
+					Expected: []sql.Row{
+						{"Seq Scan on t  (cost=0.00..35.50 rows=2550 width=4)"},
+					},
+				},
+				{
+					Skip: true, // Need to properly support explain options
+					Query: `
+EXPLAIN 
+(
+	NOTAVALIDOPTION
+) 
+	SELECT * FROM t;
+`,
+					ExpectedErr: "ERROR:  unrecognized EXPLAIN option \"NOTAVALIDOPTION\"",
+				},
+			},
+		},
+	})
+}