Snowflake - how do I retrieve the name of the currently executing procedure?

问题

I'd like to access the name of the currently executing procedure in Snowflake in the javascript procedure itself and store it in a variable.

When I interrogate the "this" object, I can see the name in the Variant return, but in terms of JSON I believe it's the name not the value and I'm not sure how to retrieve the first name in the JSON object.

What code do I need to use to get the procedure name?
procName = ???what code goes here with the this object???;

Do we know that the first name/value pair in "this" will always be the procedure name?

CREATE OR REPLACE PROCEDURE EDW_ADMIN.DAG_TEST()
RETURNS VARIANT
LANGUAGE JAVASCRIPT
AS 
$$
var procName = "";
// procName = this.??? WHAT DO I PUT HERE ???
return this;
$$
;

The return / contents of "this" are:

{
  "DAG_TEST": {},
  "ResultSet": {},
  "SfTimestamp": {},
  "Snowflake": {},
  "Statement": {},
  "Status": {
    "EOF": "eof",
    "ERROR": "error",
    "INITIALIZED": "initialized",
    "SUCCESS": "success"
  },
  "_c_snowflake": {
    "createExecError": {},
    "createStatement": {}
  },
  "createError": {},
  "extractValue": {},
  "getColSqlTypeFromIdx": {},
  "nativeTypes": {
    "values": {
      "BOOLEAN": "boolean",
      "BUFFER": "buffer",
      "DATE": "date",
      "INVALID": "invalid",
      "JSON": "json",
      "NUMBER": "number",
      "STRING": "string"
    }
  },
  "noSuchColumnIdxErrorMessage": "Given column name/index does not exist: ",
  "snowflake": {
    "createStatement": {},
    "execute": {}
  },
  "sqlTypeFromLibSfDbTypeVal": {},
  "sqlTypes": {
    "isArray": {},
    "isBinary": {},
    "isBoolean": {},
    "isDate": {},
    "isNumber": {},
    "isObject": {},
    "isText": {},
    "isTime": {},
    "isTimestamp": {},
    "isTimestampLtz": {},
    "isTimestampNtz": {},
    "isTimestampTz": {},
    "isVariant": {},
    "values": {
      "ARRAY": {
        "libSfDbType": 9,
        "name": "ARRAY"
      },
      "BINARY": {
        "libSfDbType": 10,
        "name": "BINARY"
      },
      "BOOLEAN": {
        "libSfDbType": 12,
        "name": "BOOLEAN"
      },
      "DATE": {
        "libSfDbType": 3,
        "name": "DATE"
      },
      "FIXED": {
        "libSfDbType": 0,
        "name": "FIXED"
      },
      "INVALID_SQL_TYPE": {
        "libSfDbType": -1,
        "name": "INVALID_SQL_TYPE"
      },
      "OBJECT": {
        "libSfDbType": 8,
        "name": "OBJECT"
      },
      "REAL": {
        "libSfDbType": 1,
        "name": "REAL"
      },
      "TEXT": {
        "libSfDbType": 2,
        "name": "TEXT"
      },
      "TIME": {
        "libSfDbType": 11,
        "name": "TIME"
      },
      "TIMESTAMP_LTZ": {
        "libSfDbType": 4,
        "name": "TIMESTAMP_LTZ"
      },
      "TIMESTAMP_NTZ": {
        "libSfDbType": 5,
        "name": "TIMESTAMP_NTZ"
      },
      "TIMESTAMP_TZ": {
        "libSfDbType": 6,
        "name": "TIMESTAMP_TZ"
      },
      "VARIANT": {
        "libSfDbType": 7,
        "name": "VARIANT"
      }
    }
  },
  "testFunc": {},
  "typeFromLibSfDbTypeVal": {},
  "validateBinds": {},
  "validateColumnExists": {}
}

回答1:

Try this in your proc:

const procName = Object.keys(this)[0];

Assuming that the procName is always the first key in the dictionary! Also using const wherever possible is a good practice.

来源：https://stackoverflow.com/questions/59296207/snowflake-how-do-i-retrieve-the-name-of-the-currently-executing-procedure