You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
211 lines
5.7 KiB
211 lines
5.7 KiB
// Copyright (c) 2012-present The upper.io/db authors. All rights reserved.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining
|
|
// a copy of this software and associated documentation files (the
|
|
// "Software"), to deal in the Software without restriction, including
|
|
// without limitation the rights to use, copy, modify, merge, publish,
|
|
// distribute, sublicense, and/or sell copies of the Software, and to
|
|
// permit persons to whom the Software is furnished to do so, subject to
|
|
// the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be
|
|
// included in all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
package postgresql
|
|
|
|
import (
|
|
"github.com/upper/db/v4/internal/adapter"
|
|
"github.com/upper/db/v4/internal/cache"
|
|
"github.com/upper/db/v4/internal/sqladapter/exql"
|
|
)
|
|
|
|
const (
|
|
adapterColumnSeparator = `.`
|
|
adapterIdentifierSeparator = `, `
|
|
adapterIdentifierQuote = `"{{.Value}}"`
|
|
adapterValueSeparator = `, `
|
|
adapterValueQuote = `'{{.}}'`
|
|
adapterAndKeyword = `AND`
|
|
adapterOrKeyword = `OR`
|
|
adapterDescKeyword = `DESC`
|
|
adapterAscKeyword = `ASC`
|
|
adapterAssignmentOperator = `=`
|
|
adapterClauseGroup = `({{.}})`
|
|
adapterClauseOperator = ` {{.}} `
|
|
adapterColumnValue = `{{.Column}} {{.Operator}} {{.Value}}`
|
|
adapterTableAliasLayout = `{{.Name}}{{if .Alias}} AS {{.Alias}}{{end}}`
|
|
adapterColumnAliasLayout = `{{.Name}}{{if .Alias}} AS {{.Alias}}{{end}}`
|
|
adapterSortByColumnLayout = `{{.Column}} {{.Order}}`
|
|
|
|
adapterOrderByLayout = `
|
|
{{if .SortColumns}}
|
|
ORDER BY {{.SortColumns}}
|
|
{{end}}
|
|
`
|
|
|
|
adapterWhereLayout = `
|
|
{{if .Conds}}
|
|
WHERE {{.Conds}}
|
|
{{end}}
|
|
`
|
|
|
|
adapterUsingLayout = `
|
|
{{if .Columns}}
|
|
USING ({{.Columns}})
|
|
{{end}}
|
|
`
|
|
|
|
adapterJoinLayout = `
|
|
{{if .Table}}
|
|
{{ if .On }}
|
|
{{.Type}} JOIN {{.Table}}
|
|
{{.On}}
|
|
{{ else if .Using }}
|
|
{{.Type}} JOIN {{.Table}}
|
|
{{.Using}}
|
|
{{ else if .Type | eq "CROSS" }}
|
|
{{.Type}} JOIN {{.Table}}
|
|
{{else}}
|
|
NATURAL {{.Type}} JOIN {{.Table}}
|
|
{{end}}
|
|
{{end}}
|
|
`
|
|
|
|
adapterOnLayout = `
|
|
{{if .Conds}}
|
|
ON {{.Conds}}
|
|
{{end}}
|
|
`
|
|
|
|
adapterSelectLayout = `
|
|
SELECT
|
|
{{if .Distinct}}
|
|
DISTINCT
|
|
{{end}}
|
|
|
|
{{if defined .Columns}}
|
|
{{.Columns | compile}}
|
|
{{else}}
|
|
*
|
|
{{end}}
|
|
|
|
{{if defined .Table}}
|
|
FROM {{.Table | compile}}
|
|
{{end}}
|
|
|
|
{{.Joins | compile}}
|
|
|
|
{{.Where | compile}}
|
|
|
|
{{if defined .GroupBy}}
|
|
{{.GroupBy | compile}}
|
|
{{end}}
|
|
|
|
{{.OrderBy | compile}}
|
|
|
|
{{if .Limit}}
|
|
LIMIT {{.Limit}}
|
|
{{end}}
|
|
|
|
{{if .Offset}}
|
|
OFFSET {{.Offset}}
|
|
{{end}}
|
|
`
|
|
adapterDeleteLayout = `
|
|
DELETE
|
|
FROM {{.Table | compile}}
|
|
{{.Where | compile}}
|
|
`
|
|
adapterUpdateLayout = `
|
|
UPDATE
|
|
{{.Table | compile}}
|
|
SET {{.ColumnValues | compile}}
|
|
{{.Where | compile}}
|
|
`
|
|
|
|
adapterSelectCountLayout = `
|
|
SELECT
|
|
COUNT(1) AS _t
|
|
FROM {{.Table | compile}}
|
|
{{.Where | compile}}
|
|
`
|
|
|
|
adapterInsertLayout = `
|
|
INSERT INTO {{.Table | compile}}
|
|
{{if defined .Columns}}({{.Columns | compile}}){{end}}
|
|
VALUES
|
|
{{if defined .Values}}
|
|
{{.Values | compile}}
|
|
{{else}}
|
|
(default)
|
|
{{end}}
|
|
{{if defined .Returning}}
|
|
RETURNING {{.Returning | compile}}
|
|
{{end}}
|
|
`
|
|
|
|
adapterTruncateLayout = `
|
|
TRUNCATE TABLE {{.Table | compile}} RESTART IDENTITY
|
|
`
|
|
|
|
adapterDropDatabaseLayout = `
|
|
DROP DATABASE {{.Database | compile}}
|
|
`
|
|
|
|
adapterDropTableLayout = `
|
|
DROP TABLE {{.Table | compile}}
|
|
`
|
|
|
|
adapterGroupByLayout = `
|
|
{{if .GroupColumns}}
|
|
GROUP BY {{.GroupColumns}}
|
|
{{end}}
|
|
`
|
|
)
|
|
|
|
var template = &exql.Template{
|
|
ColumnSeparator: adapterColumnSeparator,
|
|
IdentifierSeparator: adapterIdentifierSeparator,
|
|
IdentifierQuote: adapterIdentifierQuote,
|
|
ValueSeparator: adapterValueSeparator,
|
|
ValueQuote: adapterValueQuote,
|
|
AndKeyword: adapterAndKeyword,
|
|
OrKeyword: adapterOrKeyword,
|
|
DescKeyword: adapterDescKeyword,
|
|
AscKeyword: adapterAscKeyword,
|
|
AssignmentOperator: adapterAssignmentOperator,
|
|
ClauseGroup: adapterClauseGroup,
|
|
ClauseOperator: adapterClauseOperator,
|
|
ColumnValue: adapterColumnValue,
|
|
TableAliasLayout: adapterTableAliasLayout,
|
|
ColumnAliasLayout: adapterColumnAliasLayout,
|
|
SortByColumnLayout: adapterSortByColumnLayout,
|
|
WhereLayout: adapterWhereLayout,
|
|
JoinLayout: adapterJoinLayout,
|
|
OnLayout: adapterOnLayout,
|
|
UsingLayout: adapterUsingLayout,
|
|
OrderByLayout: adapterOrderByLayout,
|
|
InsertLayout: adapterInsertLayout,
|
|
SelectLayout: adapterSelectLayout,
|
|
UpdateLayout: adapterUpdateLayout,
|
|
DeleteLayout: adapterDeleteLayout,
|
|
TruncateLayout: adapterTruncateLayout,
|
|
DropDatabaseLayout: adapterDropDatabaseLayout,
|
|
DropTableLayout: adapterDropTableLayout,
|
|
CountLayout: adapterSelectCountLayout,
|
|
GroupByLayout: adapterGroupByLayout,
|
|
Cache: cache.NewCache(),
|
|
ComparisonOperator: map[adapter.ComparisonOperator]string{
|
|
adapter.ComparisonOperatorRegExp: "~",
|
|
adapter.ComparisonOperatorNotRegExp: "!~",
|
|
},
|
|
}
|