what
2221ca0ddb
- 新增 dialect/duckdb 方言，支持 DuckDB SQL 语法 - 新增 schema/dialect/duckdb DDL 操作支持 - dialect/sqlite3: 注册 sqlite3_with_if 驱动，连接时自动注册 IF() 函数 - engine: MakeConnection 对 sqlite3 自动使用带 IF 支持的驱动 - engine: 新增 DBConfig DuckDB 配置项及相关 Option 函数 - 统一各方言测试引用路径
102 lines
2.9 KiB
Go
102 lines
2.9 KiB
Go
package sqlserver
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import (
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_ "github.com/microsoft/go-mssqldb" // SQL Server driver
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"git.fsdpf.net/go/db"
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"git.fsdpf.net/go/db/exp"
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"git.fsdpf.net/go/db/sqlgen"
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)
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func DialectOptions() *db.SQLDialectOptions {
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opts := db.DefaultDialectOptions()
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opts.BooleanDataTypeSupported = false
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opts.UseLiteralIsBools = false
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opts.SupportsReturn = false
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opts.SupportsOrderByOnUpdate = false
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opts.SupportsLimitOnUpdate = false
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opts.SupportsLimitOnDelete = false
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opts.SupportsOrderByOnDelete = true
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opts.SupportsConflictUpdateWhere = false
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opts.SupportsInsertIgnoreSyntax = false
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opts.SupportsConflictTarget = false
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opts.SupportsWithCTE = false
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opts.SupportsWithCTERecursive = false
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opts.SupportsDistinctOn = false
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opts.SupportsWindowFunction = false
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opts.SurroundLimitWithParentheses = true
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opts.PlaceHolderFragment = []byte("@p")
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opts.LimitFragment = []byte(" TOP ")
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opts.IncludePlaceholderNum = true
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opts.DefaultValuesFragment = []byte("")
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opts.True = []byte("1")
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opts.False = []byte("0")
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opts.TimeFormat = "2006-01-02 15:04:05"
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opts.BooleanOperatorLookup = map[exp.BooleanOperation][]byte{
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exp.EqOp: []byte("="),
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exp.NeqOp: []byte("!="),
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exp.GtOp: []byte(">"),
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exp.GteOp: []byte(">="),
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exp.LtOp: []byte("<"),
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exp.LteOp: []byte("<="),
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exp.InOp: []byte("IN"),
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exp.NotInOp: []byte("NOT IN"),
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exp.IsOp: []byte("IS"),
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exp.IsNotOp: []byte("IS NOT"),
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exp.LikeOp: []byte("LIKE"),
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exp.NotLikeOp: []byte("NOT LIKE"),
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exp.ILikeOp: []byte("LIKE"),
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exp.NotILikeOp: []byte("NOT LIKE"),
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exp.RegexpLikeOp: []byte("REGEXP BINARY"),
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exp.RegexpNotLikeOp: []byte("NOT REGEXP BINARY"),
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exp.RegexpILikeOp: []byte("REGEXP"),
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exp.RegexpNotILikeOp: []byte("NOT REGEXP"),
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}
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opts.BitwiseOperatorLookup = map[exp.BitwiseOperation][]byte{
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exp.BitwiseInversionOp: []byte("~"),
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exp.BitwiseOrOp: []byte("|"),
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exp.BitwiseAndOp: []byte("&"),
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exp.BitwiseXorOp: []byte("^"),
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}
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opts.FetchFragment = []byte(" FETCH FIRST ")
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opts.SelectSQLOrder = []sqlgen.SQLFragmentType{
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sqlgen.CommonTableSQLFragment,
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sqlgen.SelectWithLimitSQLFragment,
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sqlgen.FromSQLFragment,
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sqlgen.JoinSQLFragment,
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sqlgen.WhereSQLFragment,
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sqlgen.GroupBySQLFragment,
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sqlgen.HavingSQLFragment,
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sqlgen.WindowSQLFragment,
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sqlgen.CompoundsSQLFragment,
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sqlgen.OrderWithOffsetFetchSQLFragment,
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sqlgen.ForSQLFragment,
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}
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opts.EscapedRunes = map[rune][]byte{
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'\'': []byte("\\'"),
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'"': []byte("\\\""),
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'\\': []byte("\\\\"),
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'\n': []byte("\\n"),
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'\r': []byte("\\r"),
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0: []byte("\\x00"),
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0x1a: []byte("\\x1a"),
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}
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opts.OfFragment = []byte("")
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opts.ConflictFragment = []byte("")
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opts.ConflictDoUpdateFragment = []byte("")
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opts.ConflictDoNothingFragment = []byte("")
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return opts
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}
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func init() {
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db.RegisterDialect("sqlserver", DialectOptions())
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}
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