sequelize
Version:
Sequelize is a promise-based Node.js ORM tool for Postgres, MySQL, MariaDB, SQLite, Microsoft SQL Server, Amazon Redshift and Snowflake’s Data Cloud. It features solid transaction support, relations, eager and lazy loading, read replication and more.
60 lines (59 loc) • 1.89 kB
JavaScript
;
const _ = require("lodash");
const AbstractDialect = require("../abstract");
const ConnectionManager = require("./connection-manager");
const Query = require("./query");
const QueryGenerator = require("./query-generator");
const DataTypes = require("../../data-types").snowflake;
const { SnowflakeQueryInterface } = require("./query-interface");
class SnowflakeDialect extends AbstractDialect {
constructor(sequelize) {
super();
this.sequelize = sequelize;
this.connectionManager = new ConnectionManager(this, sequelize);
this.queryGenerator = new QueryGenerator({
_dialect: this,
sequelize
});
this.queryInterface = new SnowflakeQueryInterface(sequelize, this.queryGenerator);
}
}
SnowflakeDialect.prototype.supports = _.merge(_.cloneDeep(AbstractDialect.prototype.supports), {
"VALUES ()": true,
"LIMIT ON UPDATE": true,
lock: true,
forShare: "LOCK IN SHARE MODE",
settingIsolationLevelDuringTransaction: false,
inserts: {
ignoreDuplicates: " IGNORE",
updateOnDuplicate: false
},
index: {
collate: false,
length: true,
parser: true,
type: true,
using: 1
},
constraints: {
dropConstraint: false,
check: false
},
indexViaAlter: true,
indexHints: true,
NUMERIC: true,
GEOMETRY: false,
JSON: false,
REGEXP: true,
schemas: true
});
SnowflakeDialect.prototype.defaultVersion = "5.7.0";
SnowflakeDialect.prototype.Query = Query;
SnowflakeDialect.prototype.QueryGenerator = QueryGenerator;
SnowflakeDialect.prototype.DataTypes = DataTypes;
SnowflakeDialect.prototype.name = "snowflake";
SnowflakeDialect.prototype.TICK_CHAR = '"';
SnowflakeDialect.prototype.TICK_CHAR_LEFT = SnowflakeDialect.prototype.TICK_CHAR;
SnowflakeDialect.prototype.TICK_CHAR_RIGHT = SnowflakeDialect.prototype.TICK_CHAR;
module.exports = SnowflakeDialect;
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