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Enrichment Functions

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Terakhir diperbarui: 2026-05-15 22:14:21

Function t_table_map

Function definition

Map to the target table, return field values based on the input field name. Simply put, it associates logs with the dimension table.

Syntax Description

t_table_map(data, field, output_fields, missing=None, mode="fill-auto")

Parameter Description

Parameter Name
Parameter Description
Parameter Type
Required
Default Value
Parameter Value Range
data
Target table (dimension table)
table
Yes
-
-
field
Map the source field to the table in logs. If the corresponding field does not exist in logs, perform no operation. Supports String and String List.
any
Yes
-
-
output_fields
Mapped fields, such as ["province", "pop"]. Supports String and String List.
any
Yes
-
-
missing
When no match field is found, assign the parameter value to the output field output_fields.
String
No
-
-
mode
Field coverage mode. Default is fill-auto.
String
No
fill-auto

Example

Example 1: Enriching Multiple New Fields From MySQL

Create a new table test in MySQL and add the following data:

Raw log:
[
    {
        "user_id": 1
    },
    {
        "user_id": 3
    }
]
Processing rule:
res_rds_mysql is used for obtaining dimension table data from MySQL.
//On the console, set the alias configuration of external data MySQL to hm, the db of mysql to test222, and the table name to test
//Pull all data from MySQL and use the t_table_map function to join dimensional tables

t_table_map(
    res_rds_mysql(alias="hm",database="test222",sql="select * from test"),
    "user_id",
    ["gameid", "game"]
)
Processing result:
[
{
"user_id":"1"
},
{
"game":"wangzhe",
"gameid":"123",
"user_id":"3"
}
]

Example 2: Renaming Enriched Fields When Associated Field Names Differ

The log field Pid is associated with the id field in MySQL, but with a different name. The enriched game_details field from MySQL is renamed to game_info in logs.
Create a new table test in MySQL and add the following data:

Raw log:
[
    {
        "Pid": 1
    },
    {
        "Pid": 2
    },
    {
        "Pid": 3
    }
]
Processing rule:
//On the console, set the alias configuration of external data MySQL to hm, the db of mysql to test222, and the table name to test
//Pull some data from MySQL and use the t_table_map function to join dimensional tables
//The log field Pid relates to the id field in MySQL, with different names
//Enrich the game_details field from MySQL, rename to game_info in logs
t_table_map(
    res_rds_mysql(alias="hm",database="test222",sql="select * from test where region='CN'"),
    [["Pid", "id"]],
  ["game_name",["game_details","game_info"]]
)
Processing result:
[
{
"Pid":"1"
"game_info":"MOBA mobile game"
"game_name":"Honor of Kings"
},
{
"Pid":"2"
},
{
"Pid":"3"
"game_info":"open world RPG game"
"game_name":"Genshin Impact"
}
]

Function enrich_table

Function definition

This function uses CSV structure data to match fields in logs and, when matched fields are found, the function adds other fields and values in the CSV data to the source logs.

Syntax Description

enrich_table("csv source data", "csv enrichment field", output="target field1, target field2, target field...", mode="overwrite")

Parameter Description

Parameter Name
Parameter Description
Parameter Type
Required
Default Value
Parameter Value Range
data
For the input CSV data, the first line is column name and other lines are corresponding values. For example: region,count\\nbj, 200\\ngz, 300.
String
Yes
-
-
fields
Name of the column to be matched. The field name in the CSV matches the field with the same name in the actual log. A single field name or multiple new field names concatenated with English half-width commas.
String
Yes
-
-
output
Output field list. A single field name or multiple new field names concatenated with English half-width commas.
String
Yes
-
-
mode
Write mode of the new field.
String
No
overwrite
-

Example

Raw log:
{"region": "gz"}
Processing rule:
enrich_table("region,count\\nbj,200\\ngz,300", "region", output="count")
Processing result:
{"count":"300","region":"gz"}

enrich_dict Function

Function Definition

The Dict structure is used to match the field values in the log. When the value of the specified field is the same as the Key in the Dict, the Value corresponding to this Key will be assigned to another field in the log.

Syntax Description

enrich_dict ("JSON dictionary", "source field name", output=target field name, mode="overwrite")

Parameter Description

Parameter Name
Parameter Description
Parameter Type
Required
Default Value
Parameter Value Range
data
Input dict data, which must be the escape string of JSON object, for example: {\\200\\":\\"SUCCESS\\".
String
Yes
-
-
fields
Name of the field to be matched. When the key in dict is the same as the value corresponding to the specified field, the match succeeds. A single field name or multiple new field names concatenated with English half-width commas.
String
Yes
-
-
output
Target field list. After successful matching, the function writes the corresponding values in the dict data to the target field list. The value can be a single field name or multiple new field names concatenated with commas.
String
Yes
-
-
mode
Write mode of the new field.
String
No
overwrite

Example

Raw log:
{"status": "500"}
Processing rule:
enrich_dict("{\\"200\\":\\"SUCCESS\\",\\"500\\":\\"FAILED\\"}", "status", output="message")
Processing result:
{"message":"FAILED","status":"500"}

Topik sebelumnya: Key-Value Extraction FunctionsTopik selanjutnya: Flow Control

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