dialect/sql/sqljson: inline boolean values (ent#3570)

Some drivers like mysql encodes them as 0/1

dialect/sql/sqljson/sqljson.go

@@ -7,6 +7,7 @@ package sqljson
 import (
 	"encoding/json"
 	"fmt"
+	"strconv"
 	"strings"
 	"unicode"
 
@@ -95,7 +96,13 @@ func ValueEQ(column string, arg any, opts ...Option) *sql.Predicate {
 	return sql.P(func(b *sql.Builder) {
 		opts = normalizePG(b, arg, opts)
 		valuePath(b, column, opts...)
-		b.WriteOp(sql.OpEQ).Arg(arg)
+		b.WriteOp(sql.OpEQ)
+		// Inline boolean values, as some drivers (e.g., MySQL) encode them as 0/1.
+		if v, ok := arg.(bool); ok {
+			b.WriteString(strconv.FormatBool(v))
+		} else {
+			b.Arg(arg)
+		}
 	})
 }
 

dialect/sql/sqljson/sqljson_test.go

@@ -36,6 +36,13 @@ func TestWritePath(t *testing.T) {
 			wantQuery: "SELECT * FROM `users` WHERE JSON_EXTRACT(`a`, '$.b.c[1].d') = ?",
 			wantArgs:  []any{"a"},
 		},
+		{
+			input: sql.Dialect(dialect.MySQL).
+				Select("*").
+				From(sql.Table("users")).
+				Where(sqljson.ValueEQ("a", true, sqljson.DotPath("b.c[1].d"))),
+			wantQuery: "SELECT * FROM `users` WHERE JSON_EXTRACT(`a`, '$.b.c[1].d') = true",
+		},
 		{
 			input: sql.Dialect(dialect.MySQL).
 				Select("*").

entc/integration/json/json_test.go

@@ -616,6 +616,22 @@ func Predicates(t *testing.T, client *ent.Client) {
 		}).CountX(ctx)
 		require.Equal(t, 4, n)
 	})
+
+	t.Run("Boolean", func(t *testing.T) {
+		users := client.User.Query().
+			Where(func(s *sql.Selector) {
+				s.Where(sqljson.ValueEQ(user.FieldT, true, sqljson.Path("b")))
+			}).
+			AllX(ctx)
+		require.Empty(t, users)
+		client.User.Create().SetT(&schema.T{B: true}).ExecX(ctx)
+		u1 := client.User.Query().
+			Where(func(s *sql.Selector) {
+				s.Where(sqljson.ValueEQ(user.FieldT, true, sqljson.Path("b")))
+			}).
+			OnlyX(ctx)
+		require.True(t, u1.T.B)
+	})
 }
 
 func Order(t *testing.T, client *ent.Client) {