feat: adapt to opengauss

This commit is contained in:
robotez 2024-11-10 19:36:44 +08:00
parent d47f35b260
commit bcfbbe1d6e
3 changed files with 846 additions and 13 deletions

View File

@ -276,6 +276,7 @@ func regDrvsNDialects() bool {
"mysql": {"mysql", func() Driver { return &mysqlDriver{} }, func() Dialect { return &mysql{} }}, "mysql": {"mysql", func() Driver { return &mysqlDriver{} }, func() Dialect { return &mysql{} }},
"mymysql": {"mysql", func() Driver { return &mymysqlDriver{} }, func() Dialect { return &mysql{} }}, "mymysql": {"mysql", func() Driver { return &mymysqlDriver{} }, func() Dialect { return &mysql{} }},
"postgres": {"postgres", func() Driver { return &pqDriver{} }, func() Dialect { return &postgres{} }}, "postgres": {"postgres", func() Driver { return &pqDriver{} }, func() Dialect { return &postgres{} }},
"opengauss": {"postgres", func() Driver { return &pqDriver{} }, func() Dialect { return &openGauss{} }},
"pgx": {"postgres", func() Driver { return &pqDriverPgx{} }, func() Dialect { return &postgres{} }}, "pgx": {"postgres", func() Driver { return &pqDriverPgx{} }, func() Dialect { return &postgres{} }},
"sqlite3": {"sqlite3", func() Driver { return &sqlite3Driver{} }, func() Dialect { return &sqlite3{} }}, "sqlite3": {"sqlite3", func() Driver { return &sqlite3Driver{} }, func() Dialect { return &sqlite3{} }},
"sqlite": {"sqlite3", func() Driver { return &sqlite3Driver{} }, func() Dialect { return &sqlite3{} }}, "sqlite": {"sqlite3", func() Driver { return &sqlite3Driver{} }, func() Dialect { return &sqlite3{} }},
@ -287,9 +288,13 @@ func regDrvsNDialects() bool {
for driverName, v := range providedDrvsNDialects { for driverName, v := range providedDrvsNDialects {
if driver := QueryDriver(driverName); driver == nil { if driver := QueryDriver(driverName); driver == nil {
RegisterDriver(driverName, v.getDriver()) RegisterDriver(driverName, v.getDriver())
if driverName == "opengauss" {
RegisterDialect("opengauss", v.getDialect)
} else {
RegisterDialect(v.dbType, v.getDialect) RegisterDialect(v.dbType, v.getDialect)
} }
} }
}
return true return true
} }

View File

@ -68,7 +68,12 @@ func OpenDialect(driverName, connstr string) (Dialect, error) {
return nil, err return nil, err
} }
dialect := QueryDialect(uri.DBType) var dialect Dialect
if driverName == "opengauss" {
dialect = QueryDialect("opengauss")
} else {
dialect = QueryDialect(uri.DBType)
}
if dialect == nil { if dialect == nil {
return nil, fmt.Errorf("unsupported dialect type: %v", uri.DBType) return nil, fmt.Errorf("unsupported dialect type: %v", uri.DBType)
} }

823
dialects/opengauss.go Normal file
View File

@ -0,0 +1,823 @@
// Copyright 2015 The Xorm Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package dialects
import (
"context"
"errors"
"strings"
"xorm.io/xorm/core"
"xorm.io/xorm/schemas"
)
// from https://docs-opengauss.osinfra.cn/en/docs/latest/docs/SQLReference/keywords.html
var (
openGaussReservedWords = map[string]bool{
"ABORT": true,
"ABS": true,
"ABSOLUTE": true,
"ACCESS": true,
"ACCOUNT": true,
"ACTION": true,
"ADA": true,
"ADD": true,
"ADMIN": true,
"AFTER": true,
"AGGREGATE": true,
"ALGORITHM": true,
"ALIAS": true,
"ALL": true,
"ALLOCATE": true,
"ALSO": true,
"ALTER": true,
"ALWAYS": true,
"ANALYSE": true,
"ANALYZE": true,
"AND": true,
"ANY": true,
"APP": true,
"ARE": true,
"ARRAY": true,
"AS": true,
"ASC": true,
"ASENSITIVE": true,
"ASSERTION": true,
"ASSIGNMENT": true,
"ASYMMETRIC": true,
"AT": true,
"ATOMIC": true,
"ATTRIBUTE": true,
"AUTHID": true,
"AUTHORIZATION": true,
"AUTOEXTEND": true,
"AUTOMAPPED": true,
"AVG": true,
"BACKWARD": true,
"BARRIER": true,
"BEFORE": true,
"BEGIN": true,
"BEGIN_NON_ANOYBLOCK": true,
"BETWEEN": true,
"BIGINT": true,
"BINARY": true,
"BINARY_DOUBLE": true,
"BINARY_INTEGER": true,
"BIT": true,
"BITVAR": true,
"BIT_LENGTH": true,
"BLOB": true,
"BOOLEAN": true,
"BOTH": true,
"BUCKETS": true,
"BREADTH": true,
"BY": true,
"BYTEAWITHOUTODER": true,
"BYTEAWITHOUTORDERWITHEQUAL": true,
"C": true,
"CACHE": true,
"CALL": true,
"CALLED": true,
"CARDINALITY": true,
"CASCADE": true,
"CASCADED": true,
"CASE": true,
"CAST": true,
"CATALOG": true,
"CATALOG_NAME": true,
"CHAIN": true,
"CHAR": true,
"CHARACTER": true,
"CHARACTERISTICS": true,
"CHARACTER_LENGTH": true,
"CHARACTER_SET_CATALOG": true,
"CHARACTER_SET_NAME": true,
"CHARACTER_SET_SCHEMA": true,
"CHAR_LENGTH": true,
"CHECK": true,
"CHECKED": true,
"CHECKPOINT": true,
"CLASS": true,
"CLEAN": true,
"CLASS_ORIGIN": true,
"CLIENT": true,
"CLIENT_MASTER_KEY": true,
"CLIENT_MASTER_KEYS": true,
"CLOB": true,
"CLOSE": true,
"CLUSTER": true,
"COALESCE": true,
"COBOL": true,
"COLLATE": true,
"COLLATION": true,
"COLLATION_CATALOG": true,
"COLLATION_NAME": true,
"COLLATION_SCHEMA": true,
"COLUMN": true,
"COLUMN_ENCRYPTION_KEY": true,
"COLUMN_ENCRYPTION_KEYS": true,
"COLUMN_NAME": true,
"COMPACT": true,
"COMPATIBLE_ILLEGAL_CHARS": true,
"COMMAND_FUNCTION": true,
"COMPLETE": true,
"COMMAND_FUNCTION_CODE": true,
"COMMENT": true,
"COMMENTS": true,
"COMMIT": true,
"COMMITTED": true,
"COMPRESS": true,
"COMPLETION": true,
"CONCURRENTLY": true,
"CONDITION": true,
"CONDITION_NUMBER": true,
"CONFIGURATION": true,
"CONNECT": true,
"CONNECTION": true,
"CONNECTION_NAME": true,
"CONSTRAINT": true,
"CONSTRAINTS": true,
"CONSTRAINT_CATALOG": true,
"CONSTRAINT_NAME": true,
"CONSTRAINT_SCHEMA": true,
"CONSTRUCTOR": true,
"CONTAINS": true,
"CONTENT": true,
"CONTINUE": true,
"CONVERSION": true,
"CONVERT": true,
"COPY": true,
"CORRESPONDING": true,
"COST": true,
"COUNT": true,
"CREATE": true,
"CROSS": true,
"CSV": true,
"CUBE": true,
"CURRENT": true,
"CURRENT_CATALOG": true,
"CURRENT_DATE": true,
"CURRENT_PATH": true,
"CURRENT_ROLE": true,
"CURRENT_SCHEMA": true,
"CURRENT_TIME": true,
"CURRENT_TIMESTAMP": true,
"CURRENT_USER": true,
"CURSOR": true,
"CURSOR_NAME": true,
"CYCLE": true,
"DATA": true,
"DATABASE": true,
"DATAFILE": true,
"DATE_FORMAT": true,
"DATATYPE_CL": true,
"DATE": true,
"DELTAMERGE": true,
"DATETIME_INTERVAL_CODE": true,
"DATETIME_INTERVAL_PRECISION": true,
"DAY": true,
"DBCOMPATIBILITY": true,
"DEALLOCATE": true,
"DEC": true,
"DECIMAL": true,
"DECLARE": true,
"DECODE": true,
"DEFAULT": true,
"DEFAULTS": true,
"DEFERRABLE": true,
"DEFERRED": true,
"DEFINED": true,
"DEFINER": true,
"DELETE": true,
"DELIMITER": true,
"DELIMITERS": true,
"DELTA": true,
"DEPTH": true,
"DEREF": true,
"DESC": true,
"DESCRIBE": true,
"DESCRIPTOR": true,
"DESTROY": true,
"DESTRUCTOR": true,
"DETERMINISTIC": true,
"DIAGNOSTICS": true,
"DICTIONARY": true,
"DIRECT": true,
"DIRECTORY": true,
"DISABLE": true,
"DISCARD": true,
"DISCONNECT": true,
"DISPATCH": true,
"DISTINCT": true,
"DISTRIBUTE": true,
"DISTRIBUTION": true,
"DO": true,
"DOCUMENT": true,
"DOMAIN": true,
"DOUBLE": true,
"DROP": true,
"DUPLICATE": true,
"DYNAMIC": true,
"DYNAMIC_FUNCTION": true,
"DYNAMIC_FUNCTION_CODE": true,
"EACH": true,
"ELSE": true,
"ELASTIC": true,
"ENABLE": true,
"ENCODING": true,
"ENCRYPTED": true,
"ENCRYPTED_VALUE": true,
"ENCRYPTION": true,
"ENCRYPTION_TYPE": true,
"END": true,
"END-EXEC": true,
"ENFORCED": true,
"ENUM": true,
"EOL": true,
"ERRORS": true,
"EQUALS": true,
"ESCAPE": true,
"ESCAPING": true,
"EVERY": true,
"EXCEPT": true,
"EXCEPTION": true,
"EXCHANGE": true,
"EXCLUDE": true,
"EXCLUDED": true,
"EXCLUDING": true,
"EXCLUSIVE": true,
"EXEC": true,
"EXECUTE": true,
"EXISTING": true,
"EXISTS": true,
"EXPIRED_P": true,
"EXPLAIN": true,
"EXTENSION": true,
"EXTERNAL": true,
"EXTRACT": true,
"FALSE": true,
"FAMILY": true,
"FAST": true,
"FETCH": true,
"FENCED": true,
"FILEHEADER": true,
"FINAL": true,
"FIRST": true,
"FIXED": true,
"FILL_MISSING_FIELDS": true,
"FLOAT": true,
"FOLLOWING": true,
"FOR": true,
"FORCE": true,
"FOREIGN": true,
"FORMATTER": true,
"FORTRAN": true,
"FORWARD": true,
"FOUND": true,
"FREE": true,
"FREEZE": true,
"FROM": true,
"FULL": true,
"FUNCTION": true,
"FUNCTIONS": true,
"G": true,
"GENERAL": true,
"GENERATED": true,
"GET": true,
"GLOBAL": true,
"GO": true,
"GOTO": true,
"GRANT": true,
"GRANTED": true,
"GREATEST": true,
"GROUP": true,
"GROUPING": true,
"HANDLER": true,
"HAVING": true,
"HDFSDIRECTORY": true,
"HEADER": true,
"HIERARCHY": true,
"HOLD": true,
"HOST": true,
"HOUR": true,
"IDENTIFIED": true,
"IDENTITY": true,
"IF": true,
"IGNORE": true,
"IGNORE_EXTRA_DATA": true,
"ILIKE": true,
"IMMEDIATE": true,
"IMMUTABLE": true,
"IMPLEMENTATION": true,
"IMPLICIT": true,
"IN": true,
"INTERNAL": true,
"INCLUDING": true,
"INCREMENT": true,
"INDEX": true,
"INDEXES": true,
"INDICATOR": true,
"INFIX": true,
"INHERIT": true,
"INHERITS": true,
"INITIAL": true,
"INITIALIZE": true,
"INITIALLY": true,
"INITRANS": true,
"INLINE": true,
"INNER": true,
"INOUT": true,
"INPUT": true,
"INSENSITIVE": true,
"INSERT": true,
"INSTANCE": true,
"INSTANTIABLE": true,
"INSTEAD": true,
"INT": true,
"INTEGER": true,
"INTERSECT": true,
"INTERVAL": true,
"INTO": true,
"INVOKER": true,
"IS": true,
"ISNULL": true,
"ISOLATION": true,
"ITERATE": true,
"JOIN": true,
"K": true,
"KEY": true,
"KEY_PATH": true,
"KEY_MEMBER": true,
"KEY_STORE": true,
"KEY_TYPE": true,
"KILL": true,
"LABEL": true,
"LANGUAGE": true,
"LARGE": true,
"LAST": true,
"LATERAL": true,
"LC_COLLATE": true,
"LC_CTYPE": true,
"LEADING": true,
"LEAKPROOF": true,
"LEAST": true,
"LEFT": true,
"LENGTH": true,
"LESS": true,
"LEVEL": true,
"LIKE": true,
"LIMIT": true,
"LISTEN": true,
"LOAD": true,
"LOCAL": true,
"LOCALTIME": true,
"LOCALTIMESTAMP": true,
"LOCATION": true,
"LOCATOR": true,
"LOCK": true,
"LOG": true,
"LOGGING": true,
"LOOP": true,
"LOWER": true,
"MAP": true,
"MAPPING": true,
"MASTER": true,
"MATCH": true,
"MATCHED": true,
"MAX": true,
"MAXEXTENTS": true,
"MAXSIZE": true,
"MAXTRANS": true,
"MAXVALUE": true,
"MERGE": true,
"MESSAGE_LENGTH": true,
"MESSAGE_OCTET_LENGTH": true,
"MESSAGE_TEXT": true,
"METHOD": true,
"MIN": true,
"MINEXTENTS": true,
"MINUS": true,
"MINUTE": true,
"MINVALUE": true,
"MOD": true,
"MODE": true,
"MODIFIES": true,
"MODIFY": true,
"MODULE": true,
"MONTH": true,
"MORE": true,
"MOVE": true,
"MOVEMENT": true,
"MUMPS": true,
"NAME": true,
"NAMES": true,
"NATIONAL": true,
"NATURAL": true,
"NCHAR": true,
"NCLOB": true,
"NEW": true,
"NEXT": true,
"NO": true,
"NOCOMPRESS": true,
"NOCYCLE": true,
"NODE": true,
"NOLOGGING": true,
"NOMAXVALUE": true,
"NOMINVALUE": true,
"NONE": true,
"NOT": true,
"NOTHING": true,
"NOTIFY": true,
"NOTNULL": true,
"NOWAIT": true,
"NULL": true,
"NULLABLE": true,
"NULLIF": true,
"NULLS": true,
"NUMBER": true,
"NUMERIC": true,
"NUMSTR": true,
"NVARCHAR2": true,
"NVL": true,
"OBJECT": true,
"OCTET_LENGTH": true,
"OF": true,
"OFF": true,
"OFFSET": true,
"OIDS": true,
"OLD": true,
"ON": true,
"ONLY": true,
"OPEN": true,
"OPERATION": true,
"OPERATOR": true,
"OPTIMIZATION": true,
"OPTION": true,
"OPTIONS": true,
"OR": true,
"ORDER": true,
"ORDINALITY": true,
"OUT": true,
"OUTER": true,
"OUTPUT": true,
"OVER": true,
"OVERLAPS": true,
"OVERLAY": true,
"OVERRIDING": true,
"OWNED": true,
"OWNER": true,
"PACKAGE": true,
"PAD": true,
"PARAMETER": true,
"PARAMETERS": true,
"PARAMETER_MODE": true,
"PARAMETER_NAME": true,
"PARAMETER_ORDINAL_POSITION": true,
"PARAMETER_SPECIFIC_CATALOG": true,
"PARAMETER_SPECIFIC_NAME": true,
"PARAMETER_SPECIFIC_SCHEMA": true,
"PARSER": true,
"PARTIAL": true,
"PARTITION": true,
"PARTITIONS": true,
"PASCAL": true,
"PASSING": true,
"PASSWORD": true,
"PATH": true,
"PCTFREE": true,
"PER": true,
"PERM": true,
"PERCENT": true,
"PERFORMANCE": true,
"PLACING": true,
"PLAN": true,
"PLANS": true,
"PLI": true,
"POOL": true,
"POLICY": true,
"POSITION": true,
"POSTFIX": true,
"PRECEDING": true,
"PRECISION": true,
"PREFERRED": true,
"PREFIX": true,
"PREORDER": true,
"PREPARE": true,
"PREPARED": true,
"PRESERVE": true,
"PRIMARY": true,
"PRIOR": true,
"PRIVATE": true,
"PRIVILEGE": true,
"PRIVILEGES": true,
"PROCEDURAL": true,
"PROCEDURE": true,
"PROFILE": true,
"PUBLIC": true,
"QUERY": true,
"QUOTE": true,
"RANDOMIZED": true,
"RANGE": true,
"RAW": true,
"READ": true,
"READS": true,
"REAL": true,
"REASSIGN": true,
"REBUILD": true,
"RECHECK": true,
"RECURSIVE": true,
"REF": true,
"REFERENCES": true,
"REFERENCING": true,
"REINDEX": true,
"REJECT": true,
"RELATIVE": true,
"RELEASE": true,
"RELOPTIONS": true,
"REMOTE": true,
"RENAME": true,
"REPEATABLE": true,
"REPLACE": true,
"REPLICA": true,
"RESET": true,
"RESIZE": true,
"RESOURCE": true,
"RESTART": true,
"RESTRICT": true,
"RESULT": true,
"RETURN": true,
"RETURNED_LENGTH": true,
"RETURNED_OCTET_LENGTH": true,
"RETURNED_SQLSTATE": true,
"RETURNING": true,
"RETURNS": true,
"REUSE": true,
"REVOKE": true,
"RIGHT": true,
"ROLE": true,
"ROLLBACK": true,
"ROLLUP": true,
"ROUTINE": true,
"ROUTINE_CATALOG": true,
"ROUTINE_NAME": true,
"ROUTINE_SCHEMA": true,
"ROW": true,
"ROWS": true,
"ROW_COUNT": true,
"RULE": true,
"ROWNUM": true,
"SAVEPOINT": true,
"SCALE": true,
"SCHEMA": true,
"SCHEMA_NAME": true,
"SCOPE": true,
"SCROLL": true,
"SEARCH": true,
"SECOND": true,
"SECTION": true,
"SECURITY": true,
"SELECT": true,
"SELF": true,
"SENSITIVE": true,
"SEQUENCE": true,
"SEQUENCES": true,
"SERIALIZABLE": true,
"SERVER": true,
"SERVER_NAME": true,
"SESSION": true,
"SESSION_USER": true,
"SET": true,
"SETOF": true,
"SETS": true,
"SHARE": true,
"SHIPPABLE": true,
"SHOW": true,
"SHUTDOWN": true,
"SIMILAR": true,
"SIMPLE": true,
"SIZE": true,
"SMALLDATETIME_FORMAT": true,
"SMALLDATETIME": true,
"SMALLINT": true,
"SNAPSHOT": true,
"SOME": true,
"SOURCE": true,
"SPACE": true,
"SPECIFIC": true,
"SPECIFICTYPE": true,
"SPECIFIC_NAME": true,
"SPILL": true,
"SPLIT": true,
"SQL": true,
"SQLCODE": true,
"SQLERROR": true,
"SQLEXCEPTION": true,
"SQLSTATE": true,
"SQLWARNING": true,
"STABLE": true,
"STANDALONE": true,
"START": true,
"STATE": true,
"STATEMENT": true,
"STATEMENT_ID": true,
"STATIC": true,
"STATISTICS": true,
"STDIN": true,
"STDOUT": true,
"STORAGE": true,
"STORE": true,
"STRICT": true,
"STRIP": true,
"STRUCTURE": true,
"STYLE": true,
"SUBCLASS_ORIGIN": true,
"SUBLIST": true,
"SUBSTRING": true,
"SUM": true,
"SYMMETRIC": true,
"SYNONYM": true,
"SYS_REFCURSOR": true,
"SYSDATE": true,
"SYSID": true,
"SYSTEM": true,
"SYSTEM_USER": true,
"TABLE": true,
"TABLES": true,
"TABLE_NAME": true,
"TIME_FORMAT": true,
"TIMESTAMP_FORMAT": true,
"TEMP": true,
"TEMPLATE": true,
"TEMPORARY": true,
"TERMINATE": true,
"TEXT": true,
"THAN": true,
"THEN": true,
"TIME": true,
"TIMESTAMP": true,
"TIMESTAMPDIFF": true,
"TIMEZONE_HOUR": true,
"TIMEZONE_MINUTE": true,
"TINYINT": true,
"TO": true,
"TRAILING": true,
"TRANSACTION": true,
"TRANSACTIONS_COMMITTED": true,
"TRANSACTIONS_ROLLED_BACK": true,
"TRANSACTION_ACTIVE": true,
"TRANSFORM": true,
"TRANSFORMS": true,
"TRANSLATE": true,
"TRANSLATION": true,
"TREAT": true,
"TRIGGER": true,
"TRIGGER_CATALOG": true,
"TRIGGER_NAME": true,
"TRIGGER_SCHEMA": true,
"TRIM": true,
"TRUE": true,
"TRUNCATE": true,
"TRUSTED": true,
"TSFIELD": true,
"TSTAG": true,
"TSTIME": true,
"TYPE": true,
"TYPES": true,
"UESCAPE": true,
"UNBOUNDED": true,
"UNCOMMITTED": true,
"UNDER": true,
"UNENCRYPTED": true,
"UNION": true,
"UNIQUE": true,
"UNKNOWN": true,
"UNLIMITED": true,
"UNLISTEN": true,
"UNLOCK": true,
"UNLOGGED": true,
"UNNAMED": true,
"UNNEST": true,
"UNTIL": true,
"UNUSABLE": true,
"UPDATE": true,
"UPPER": true,
"USAGE": true,
"USER": true,
"USER_DEFINED_TYPE_CATALOG": true,
"USER_DEFINED_TYPE_NAME": true,
"USER_DEFINED_TYPE_SCHEMA": true,
"USING": true,
"VACUUM": true,
"VALID": true,
"VALIDATE": true,
"VALIDATION": true,
"VALIDATOR": true,
"VALUE": true,
"VALUES": true,
"VARCHAR": true,
"VARCHAR2": true,
"VARIABLE": true,
"VARIADIC": true,
"VARYING": true,
"VCGROUP": true,
"VERBOSE": true,
"VERSION": true,
"VERIFY": true,
"VIEW": true,
"VOLATILE": true,
"WHEN": true,
"WHENEVER": true,
"WHERE": true,
"WHITESPACE": true,
"WINDOW": true,
"WITH": true,
"WITHIN": true,
"WITHOUT": true,
"WORK": true,
"WORKLOAD": true,
"WRAPPER": true,
"WRITE": true,
"XML": true,
"XMLATTRIBUTES": true,
"XMLCONCAT": true,
"XMLELEMENT": true,
"XMLEXISTS": true,
"XMLFOREST": true,
"XMLPARSE": true,
"XMLPI": true,
"XMLROOT": true,
"XMLSERIALIZE": true,
"YEAR": true,
"YES": true,
"ZONE": true,
}
)
type openGauss struct {
postgres
}
// Version returns version of OpenGauss
// version like: xxx ... (GaussDB Kernel VXXXRXXXCXX build XXX) xxx ...
// version also like: xxx ... gaussdb (GaussDB Kernel 505.2.0 build e3976aad) xxx ...
func (db *openGauss) Version(ctx context.Context, queryer core.Queryer) (*schemas.Version, error) {
rows, err := queryer.QueryContext(ctx, "SELECT version()")
if err != nil {
return nil, err
}
defer rows.Close()
if !rows.Next() {
if rows.Err() != nil {
return nil, rows.Err()
}
return nil, errors.New("unknown version")
}
var version string
if err := rows.Scan(&version); err != nil {
return nil, err
}
start := -1
end := -1
for i, c := range version {
if start == -1 && (string(c) == "(" || string(c) == "") {
start = i
}
if string(c) == ")" || string(c) == "" {
end = i
break
}
}
if start == -1 || end < start {
return nil, errors.New("unknown version")
}
words := strings.Split(version[start+1:end], " ")
wordCnt := 0
word := ""
for _, word = range words {
if word != "" {
wordCnt++
if wordCnt == 3 {
break
}
}
}
return &schemas.Version{
Number: word,
Level: "",
Edition: "GaussDB",
}, nil
}
func (db *openGauss) IsReserved(name string) bool {
_, ok := openGaussReservedWords[strings.ToUpper(name)]
return ok
}