test(contrib/drivers/pgsql): add Builder/Subquery/Join/Struct tests (gogf#4680)

## Summary
- Port MySQL test coverage for Builder, Subquery, Join, and Struct
features to PgSQL driver
- Add 4 new test files with 23 test functions covering builder patterns,
subquery WHERE/HAVING/Model, all JOIN types, and struct scanning
- PgSQL dialect adaptations: double-quoted identifiers, GROUP BY with
HAVING, letter-prefixed table names, int64 id assertions, removed `Uid`
field

## Test plan
- [x] Builder tests pass: `go test -v -run
"Test_Model_Builder|Test_Safe_Builder" -count=1`
- [x] Subquery tests pass: `go test -v -run "Test_Model_SubQuery"
-count=1`
- [x] Join tests pass: `go test -v -run
"Test_Model_.*Join.*|Test_Model_FieldsPrefix" -count=1`
- [x] Struct tests pass: `go test -v -run
"Test_Model_Embedded|Test_Struct|Test_Structs|Test_Model_Scan|Test_Scan_Auto"
-count=1`
- [x] Full PgSQL test suite: 113/113 PASS

ref gogf#4689

Author: lingcoder

contrib/drivers/pgsql/pgsql_z_unit_feature_model_builder_test.go

@@ -0,0 +1,141 @@
+// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package pgsql_test
+
+import (
+	"testing"
+
+	"github.com/gogf/gf/v2/encoding/gjson"
+	"github.com/gogf/gf/v2/frame/g"
+	"github.com/gogf/gf/v2/os/gtime"
+	"github.com/gogf/gf/v2/test/gtest"
+	"github.com/gogf/gf/v2/util/gmeta"
+)
+
+func Test_Model_Builder(t *testing.T) {
+	table := createInitTable()
+	defer dropTable(table)
+
+	gtest.C(t, func(t *gtest.T) {
+		m := db.Model(table)
+		b := m.Builder()
+
+		all, err := m.Where(
+			b.Where("id", g.Slice{1, 2, 3}).WhereOr("id", g.Slice{4, 5, 6}),
+		).All()
+		t.AssertNil(err)
+		t.Assert(len(all), 6)
+	})
+
+	// Where And
+	gtest.C(t, func(t *gtest.T) {
+		m := db.Model(table)
+		b := m.Builder()
+
+		all, err := m.Where(
+			b.Where("id", g.Slice{1, 2, 3}).WhereOr("id", g.Slice{4, 5, 6}),
+		).Where(
+			b.Where("id", g.Slice{2, 3}).WhereOr("id", g.Slice{5, 6}),
+		).Where(
+			b.Where("id", g.Slice{3}).Where("id", g.Slice{1, 2, 3}),
+		).All()
+		t.AssertNil(err)
+		t.Assert(len(all), 1)
+	})
+
+	// Where Or
+	gtest.C(t, func(t *gtest.T) {
+		m := db.Model(table)
+		b := m.Builder()
+
+		all, err := m.WhereOr(
+			b.Where("id", g.Slice{1, 2, 3}).WhereOr("id", g.Slice{4, 5, 6}),
+		).WhereOr(
+			b.Where("id", g.Slice{2, 3}).WhereOr("id", g.Slice{5, 6}),
+		).WhereOr(
+			b.Where("id", g.Slice{3}).Where("id", g.Slice{1, 2, 3}),
+		).All()
+		t.AssertNil(err)
+		t.Assert(len(all), 6)
+	})
+
+	// Where with struct which has a field type of *gtime.Time
+	gtest.C(t, func(t *gtest.T) {
+		m := db.Model(table)
+		b := m.Builder()
+
+		type Query struct {
+			Id       any
+			Nickname *gtime.Time
+		}
+
+		where, args := b.Where(&Query{Id: 1}).Build()
+		t.Assert(where, `"id"=? AND "nickname" IS NULL`)
+		t.Assert(args, []any{1})
+	})
+
+	// Where with struct which has a field type of *gjson.Json
+	gtest.C(t, func(t *gtest.T) {
+		m := db.Model(table)
+		b := m.Builder()
+
+		type Query struct {
+			Id       any
+			Nickname *gjson.Json
+		}
+
+		where, args := b.Where(&Query{Id: 1}).Build()
+		t.Assert(where, `"id"=? AND "nickname" IS NULL`)
+		t.Assert(args, []any{1})
+	})
+
+	// Where with do struct which has a field type of *gtime.Time and generated by gf cli
+	gtest.C(t, func(t *gtest.T) {
+		m := db.Model(table)
+		b := m.Builder()
+
+		type Query struct {
+			gmeta.Meta `orm:"do:true"`
+			Id         any
+			Nickname   *gtime.Time
+		}
+
+		where, args := b.Where(&Query{Id: 1}).Build()
+		t.Assert(where, `"id"=?`)
+		t.Assert(args, []any{1})
+	})
+
+	// Where with do struct which has a field type of *gjson.Json and generated by gf cli
+	gtest.C(t, func(t *gtest.T) {
+		m := db.Model(table)
+		b := m.Builder()
+
+		type Query struct {
+			gmeta.Meta `orm:"do:true"`
+			Id         any
+			Nickname   *gjson.Json
+		}
+
+		where, args := b.Where(&Query{Id: 1}).Build()
+		t.Assert(where, `"id"=?`)
+		t.Assert(args, []any{1})
+	})
+}
+
+func Test_Safe_Builder(t *testing.T) {
+	// test whether m.Builder() is chain safe
+	gtest.C(t, func(t *gtest.T) {
+		b := db.Model().Builder()
+		b.Where("id", 1)
+		_, args := b.Build()
+		t.AssertNil(args)
+
+		b = b.Where("id", 1)
+		_, args = b.Build()
+		t.Assert(args, g.Slice{1})
+	})
+}

contrib/drivers/pgsql/pgsql_z_unit_feature_model_join_test.go

@@ -0,0 +1,177 @@
+// Copyright GoFrame Author(https://goframe.org). All Rights Reserved.
+//
+// This Source Code Form is subject to the terms of the MIT License.
+// If a copy of the MIT was not distributed with this file,
+// You can obtain one at https://github.com/gogf/gf.
+
+package pgsql_test
+
+import (
+	"testing"
+
+	"github.com/gogf/gf/v2/frame/g"
+	"github.com/gogf/gf/v2/os/gtime"
+	"github.com/gogf/gf/v2/test/gtest"
+)
+
+func Test_Model_LeftJoinOnField(t *testing.T) {
+	var (
+		table1 = "t_" + gtime.TimestampNanoStr() + "_table1"
+		table2 = "t_" + gtime.TimestampNanoStr() + "_table2"
+	)
+	createInitTable(table1)
+	defer dropTable(table1)
+	createInitTable(table2)
+	defer dropTable(table2)
+
+	gtest.C(t, func(t *gtest.T) {
+		r, err := db.Model(table1).
+			FieldsPrefix(table1, "*").
+			LeftJoinOnField(table2, "id").
+			WhereIn("id", g.Slice{1, 2}).
+			Order("id asc").All()
+		t.AssertNil(err)
+		t.Assert(len(r), 2)
+		t.Assert(r[0]["id"], 1)
+		t.Assert(r[1]["id"], 2)
+	})
+}
+
+func Test_Model_RightJoinOnField(t *testing.T) {
+	var (
+		table1 = "t_" + gtime.TimestampNanoStr() + "_table1"
+		table2 = "t_" + gtime.TimestampNanoStr() + "_table2"
+	)
+	createInitTable(table1)
+	defer dropTable(table1)
+	createInitTable(table2)
+	defer dropTable(table2)
+
+	gtest.C(t, func(t *gtest.T) {
+		r, err := db.Model(table1).
+			FieldsPrefix(table1, "*").
+			RightJoinOnField(table2, "id").
+			WhereIn("id", g.Slice{1, 2}).
+			Order("id asc").All()
+		t.AssertNil(err)
+		t.Assert(len(r), 2)
+		t.Assert(r[0]["id"], 1)
+		t.Assert(r[1]["id"], 2)
+	})
+}
+
+func Test_Model_InnerJoinOnField(t *testing.T) {
+	var (
+		table1 = "t_" + gtime.TimestampNanoStr() + "_table1"
+		table2 = "t_" + gtime.TimestampNanoStr() + "_table2"
+	)
+	createInitTable(table1)
+	defer dropTable(table1)
+	createInitTable(table2)
+	defer dropTable(table2)
+
+	gtest.C(t, func(t *gtest.T) {
+		r, err := db.Model(table1).
+			FieldsPrefix(table1, "*").
+			InnerJoinOnField(table2, "id").
+			WhereIn("id", g.Slice{1, 2}).
+			Order("id asc").All()
+		t.AssertNil(err)
+		t.Assert(len(r), 2)
+		t.Assert(r[0]["id"], 1)
+		t.Assert(r[1]["id"], 2)
+	})
+}
+
+func Test_Model_LeftJoinOnFields(t *testing.T) {
+	var (
+		table1 = "t_" + gtime.TimestampNanoStr() + "_table1"
+		table2 = "t_" + gtime.TimestampNanoStr() + "_table2"
+	)
+	createInitTable(table1)
+	defer dropTable(table1)
+	createInitTable(table2)
+	defer dropTable(table2)
+
+	gtest.C(t, func(t *gtest.T) {
+		r, err := db.Model(table1).
+			FieldsPrefix(table1, "*").
+			LeftJoinOnFields(table2, "id", "=", "id").
+			WhereIn("id", g.Slice{1, 2}).
+			Order("id asc").All()
+		t.AssertNil(err)
+		t.Assert(len(r), 2)
+		t.Assert(r[0]["id"], 1)
+		t.Assert(r[1]["id"], 2)
+	})
+}
+
+func Test_Model_RightJoinOnFields(t *testing.T) {
+	var (
+		table1 = "t_" + gtime.TimestampNanoStr() + "_table1"
+		table2 = "t_" + gtime.TimestampNanoStr() + "_table2"
+	)
+	createInitTable(table1)
+	defer dropTable(table1)
+	createInitTable(table2)
+	defer dropTable(table2)
+
+	gtest.C(t, func(t *gtest.T) {
+		r, err := db.Model(table1).
+			FieldsPrefix(table1, "*").
+			RightJoinOnFields(table2, "id", "=", "id").
+			WhereIn("id", g.Slice{1, 2}).
+			Order("id asc").All()
+		t.AssertNil(err)
+		t.Assert(len(r), 2)
+		t.Assert(r[0]["id"], 1)
+		t.Assert(r[1]["id"], 2)
+	})
+}
+
+func Test_Model_InnerJoinOnFields(t *testing.T) {
+	var (
+		table1 = "t_" + gtime.TimestampNanoStr() + "_table1"
+		table2 = "t_" + gtime.TimestampNanoStr() + "_table2"
+	)
+	createInitTable(table1)
+	defer dropTable(table1)
+	createInitTable(table2)
+	defer dropTable(table2)
+
+	gtest.C(t, func(t *gtest.T) {
+		r, err := db.Model(table1).
+			FieldsPrefix(table1, "*").
+			InnerJoinOnFields(table2, "id", "=", "id").
+			WhereIn("id", g.Slice{1, 2}).
+			Order("id asc").All()
+		t.AssertNil(err)
+		t.Assert(len(r), 2)
+		t.Assert(r[0]["id"], 1)
+		t.Assert(r[1]["id"], 2)
+	})
+}
+
+func Test_Model_FieldsPrefix(t *testing.T) {
+	var (
+		table1 = "t_" + gtime.TimestampNanoStr() + "_table1"
+		table2 = "t_" + gtime.TimestampNanoStr() + "_table2"
+	)
+	createInitTable(table1)
+	defer dropTable(table1)
+	createInitTable(table2)
+	defer dropTable(table2)
+
+	gtest.C(t, func(t *gtest.T) {
+		r, err := db.Model(table1).
+			FieldsPrefix(table1, "id").
+			FieldsPrefix(table2, "nickname").
+			LeftJoinOnField(table2, "id").
+			WhereIn("id", g.Slice{1, 2}).
+			Order("id asc").All()
+		t.AssertNil(err)
+		t.Assert(len(r), 2)
+		t.Assert(r[0]["id"], 1)
+		t.Assert(r[0]["nickname"], "name_1")
+	})
+}