Add support for database schema in PostgreSQL (#8819)

* Add support for database schema

* Require setting search_path for the db user

* Add schema setting to admin/config.tmpl

* Use a schema different from default for psql tests

* Update postgres scripts to use custom schema

* Update to xorm/core 0.7.3 and xorm/xorm c37aff9b3a

* Fix migration test

Co-authored-by: Antoine GIRARD <sapk@users.noreply.github.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

vendor/xorm.io/core/.drone.yml

@@ -1,128 +1,8 @@
----
-kind: pipeline
-name: go1.10
-
-platform:
-  os: linux
-  arch: amd64
-
-clone:
-  disable: true
-
-workspace:
-  base: /go
-  path: src/xorm.io/core
-
-steps:
-- name: git
-  pull: default
-  image: plugins/git:next
-  settings:
-    depth: 50
-    tags: true
-
-- name: test
-  pull: default
-  image: golang:1.10
-  commands:
-  - go get github.com/stretchr/testify/assert
-  - go get github.com/go-xorm/sqlfiddle
-  - go get github.com/go-sql-driver/mysql
-  - go get github.com/mattn/go-sqlite3
-  - go vet
-  - "go test -v -race -coverprofile=coverage.txt -covermode=atomic -dbConn=\"root:@tcp(mysql:3306)/core_test?charset=utf8mb4\""
-  when:
-    event:
-    - push
-    - tag
-    - pull_request
-
-services:
-- name: mysql
-  pull: default
-  image: mysql:5.7
-  environment:
-    MYSQL_ALLOW_EMPTY_PASSWORD: yes
-    MYSQL_DATABASE: core_test
-  when:
-    event:
-    - push
-    - tag
-    - pull_request
-
----
-kind: pipeline
-name: go1.11
-
-platform:
-  os: linux
-  arch: amd64
-
-clone:
-  disable: true
-
-workspace:
-  base: /go
-  path: src/xorm.io/core
-
-steps:
-- name: git
-  pull: default
-  image: plugins/git:next
-  settings:
-    depth: 50
-    tags: true
-
-- name: test
-  pull: default
-  image: golang:1.11
-  commands:
-  - go vet
-  - "go test -v -race -coverprofile=coverage.txt -covermode=atomic -dbConn=\"root:@tcp(mysql:3306)/core_test?charset=utf8mb4\""
-  environment:
-    GO111MODULE: "on"
-    GOPROXY: https://goproxy.cn
-  when:
-    event:
-    - push
-    - tag
-    - pull_request
-
-services:
-- name: mysql
-  pull: default
-  image: mysql:5.7
-  environment:
-    MYSQL_ALLOW_EMPTY_PASSWORD: yes
-    MYSQL_DATABASE: core_test
-  when:
-    event:
-    - push
-    - tag
-    - pull_request
-
 ---
 kind: pipeline
 name: go1.12
 
-platform:
-  os: linux
-  arch: amd64
-
-clone:
-  disable: true
-
-workspace:
-  base: /go
-  path: src/xorm.io/core
-
 steps:
-- name: git
-  pull: default
-  image: plugins/git:next
-  settings:
-    depth: 50
-    tags: true
 
 - name: test
   pull: default

vendor/xorm.io/core/README.md

@@ -1,7 +1,7 @@
 Core is a lightweight wrapper of sql.DB.
 
 [![Build Status](https://drone.gitea.com/api/badges/xorm/core/status.svg)](https://drone.gitea.com/xorm/core)
-[![](http://gocover.io/_badge/xorm.io/core)](http://gocover.io/xorm.io/core)
+[![Test Coverage](https://gocover.io/_badge/xorm.io/core)](https://gocover.io/xorm.io/core)
 [![Go Report Card](https://goreportcard.com/badge/code.gitea.io/gitea)](https://goreportcard.com/report/xorm.io/core)
 
 # Open

vendor/xorm.io/core/column.go

@@ -37,7 +37,7 @@ type Column struct {
 	IsDeleted       bool
 	IsCascade       bool
 	IsVersion       bool
-	DefaultIsEmpty  bool
+	DefaultIsEmpty  bool // false means column has no default set, but not default value is empty
 	EnumOptions     map[string]int
 	SetOptions      map[string]int
 	DisableTimeZone bool
@@ -65,7 +65,7 @@ func NewColumn(name, fieldName string, sqlType SQLType, len1, len2 int, nullable
 		IsDeleted:       false,
 		IsCascade:       false,
 		IsVersion:       false,
-		DefaultIsEmpty:  false,
+		DefaultIsEmpty:  true, // default should be no default
 		EnumOptions:     make(map[string]int),
 		Comment:         "",
 	}

vendor/xorm.io/core/index.go

@@ -26,8 +26,8 @@ type Index struct {
 func (index *Index) XName(tableName string) string {
 	if !strings.HasPrefix(index.Name, "UQE_") &&
 		!strings.HasPrefix(index.Name, "IDX_") {
-		tableName = strings.Replace(tableName, `"`, "", -1)
-		tableName = strings.Replace(tableName, `.`, "_", -1)
+		tableParts := strings.Split(strings.Replace(tableName, `"`, "", -1), ".")
+		tableName = tableParts[len(tableParts)-1]
 		if index.Type == UniqueType {
 			return fmt.Sprintf("UQE_%v_%v", tableName, index.Name)
 		}