API Reference Source

lib/dialects/snowflake/data-types.js

"use strict";
const momentTz = require("moment-timezone");
const moment = require("moment");
module.exports = (BaseTypes) => {
  BaseTypes.ABSTRACT.prototype.dialectTypes = "https://dev.snowflake.com/doc/refman/5.7/en/data-types.html";
  BaseTypes.DATE.types.snowflake = ["DATETIME"];
  BaseTypes.STRING.types.snowflake = ["VAR_STRING"];
  BaseTypes.CHAR.types.snowflake = ["STRING"];
  BaseTypes.TEXT.types.snowflake = ["BLOB"];
  BaseTypes.TINYINT.types.snowflake = ["TINY"];
  BaseTypes.SMALLINT.types.snowflake = ["SHORT"];
  BaseTypes.MEDIUMINT.types.snowflake = ["INT24"];
  BaseTypes.INTEGER.types.snowflake = ["LONG"];
  BaseTypes.BIGINT.types.snowflake = ["LONGLONG"];
  BaseTypes.FLOAT.types.snowflake = ["FLOAT"];
  BaseTypes.TIME.types.snowflake = ["TIME"];
  BaseTypes.DATEONLY.types.snowflake = ["DATE"];
  BaseTypes.BOOLEAN.types.snowflake = ["TINY"];
  BaseTypes.BLOB.types.snowflake = ["TINYBLOB", "BLOB", "LONGBLOB"];
  BaseTypes.DECIMAL.types.snowflake = ["NEWDECIMAL"];
  BaseTypes.UUID.types.snowflake = false;
  BaseTypes.ENUM.types.snowflake = false;
  BaseTypes.REAL.types.snowflake = ["DOUBLE"];
  BaseTypes.DOUBLE.types.snowflake = ["DOUBLE"];
  BaseTypes.GEOMETRY.types.snowflake = ["GEOMETRY"];
  BaseTypes.JSON.types.snowflake = ["JSON"];
  class DATE extends BaseTypes.DATE {
    toSql() {
      return "TIMESTAMP";
    }
    _stringify(date, options) {
      if (!moment.isMoment(date)) {
        date = this._applyTimezone(date, options);
      }
      if (this._length) {
        return date.format("YYYY-MM-DD HH:mm:ss.SSS");
      }
      return date.format("YYYY-MM-DD HH:mm:ss");
    }
    static parse(value, options) {
      value = value.string();
      if (value === null) {
        return value;
      }
      if (momentTz.tz.zone(options.timezone)) {
        value = momentTz.tz(value, options.timezone).toDate();
      } else {
        value = new Date(`${value} ${options.timezone}`);
      }
      return value;
    }
  }
  class DATEONLY extends BaseTypes.DATEONLY {
    static parse(value) {
      return value.string();
    }
  }
  class UUID extends BaseTypes.UUID {
    toSql() {
      return "VARCHAR(36)";
    }
  }
  class TEXT extends BaseTypes.TEXT {
    toSql() {
      return "TEXT";
    }
  }
  class BOOLEAN extends BaseTypes.BOOLEAN {
    toSql() {
      return "BOOLEAN";
    }
  }
  class JSONTYPE extends BaseTypes.JSON {
    _stringify(value, options) {
      return options.operation === "where" && typeof value === "string" ? value : JSON.stringify(value);
    }
  }
  return {
    TEXT,
    DATE,
    BOOLEAN,
    DATEONLY,
    UUID,
    JSON: JSONTYPE
  };
};
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