In this article

1 Overview
- 1.1 Snap Type
- 1.2 Prerequisites
- 1.3 Support for Ultra Pipelines
- 1.4 Limitations and Known Issues
2 Snap Views
3 Snap Settings
- 3.1 Example Schema Model for the Parquet Parser Second Output View
4 Example
5 Snap Pack History

Overview

You can use this Snap to read the binary (Parquet) data from the input and write the document data to the output.

Snap Type

The Parquet Parser Snap is a Parse-type Snap.

Prerequisites

None.

Support for Ultra Pipelines

Works in Ultra Pipelines.

Limitations and Known Issues

None.

Snap Views

Type	Format	Number of Views	Examples of Upstream and Downstream Snaps	Description

Type

Format

Number of Views

Examples of Upstream and Downstream Snaps

Description

Input

Binary

Min: 1
Max: 1

Parquet Reader

Requires binary (Parquet) input to convert it into the document.

Output

Document

Min: 1
Max: 2

Mapper
Copy

Writes the document data as output.

The second output view provides the schema model of the parquet file.

Error

Error handling is a generic way to handle errors without losing data or failing the Snap execution. You can handle the errors that the Snap might encounter when running the pipeline by choosing one of the following options from the When errors occur list under the Views tab:

Stop Pipeline Execution: Stops the current pipeline execution if the Snap encounters an error.
Discard Error Data and Continue: Ignores the error, discards that record, and continues with the remaining records.
Route Error Data to Error View: Routes the error data to an error view without stopping the Snap execution.

Learn more about Error handling in pipelines.

Snap Settings

Asterisk ( * ): Indicates a mandatory field.
Suggestion icon (): Indicates a list that is dynamically populated based on the configuration.
Expression icon ( ): Indicates the value is an expression (if enabled) or a static value (if disabled). Learn more about Using Expressions in SnapLogic.
Add icon ( ): Indicates that you can add fields in the field set.
Remove icon ( ): Indicates that you can remove fields from the field set.
Upload icon ( ): Indicates that you can upload files.

Field Name	Field Type	Description

Field Name

Field Type

Description

Label*

Default Value: Parquet Parser
Example: Transform Parquet Parser

String

Specify the name for the Snap. You can modify this to be more specific, especially if you have more than one of the same Snap in your pipeline.

Ignore empty data

Default Value: Selected

Checkbox

When you select this checkbox, the Snap does not generate any output. If you deselect this checkbox, the Snap generates an empty output document when you pass either an empty input stream or an input stream with CSV headers.

Snap execution

Default Value: Validate & Execute
Example: Execute only

Dropdown list

Select one of the following three modes in which the Snap executes:

Validate & Execute: Performs limited execution of the Snap, and generates a data preview during pipeline validation. Subsequently, performs full execution of the Snap (unlimited records) during pipeline runtime.
Execute only: Performs full execution of the Snap during Pipeline execution without generating preview data.
Disabled: Disables the Snap and all Snaps that are downstream from it.

Example Schema Model for the Parquet Parser Second Output View

[
  {
    "schemaMap": {
      "AUTOSYNC_PRIMARYKEY": {
        "logicalType": "STRING",
        "repetition": "OPTIONAL",
        "primitiveType": "BINARY",
        "typeLength": 0
      },
      "AUTOSYNC_VALUEHASH": {
        "logicalType": "STRING",
        "repetition": "OPTIONAL",
        "primitiveType": "BINARY",
        "typeLength": 0
      },
      "AUTOSYNC_CURRENTRECORDFLAG": {
        "logicalType": "STRING",
        "repetition": "OPTIONAL",
        "primitiveType": "BINARY",
        "typeLength": 0
      },
      "AUTOSYNC_EFFECTIVEBEGINTIME": {
        "logicalType": "TIMESTAMP(MILLIS,true)",
        "repetition": "OPTIONAL",
        "primitiveType": "INT64",
        "typeLength": 0
      },
      "AUTOSYNC_EFFECTIVEENDTIME": {
        "logicalType": "TIMESTAMP(MILLIS,true)",
        "repetition": "OPTIONAL",
        "primitiveType": "INT64",
        "typeLength": 0
      },
      "ID1": {
        "logicalType": null,
        "repetition": "OPTIONAL",
        "primitiveType": "DOUBLE",
        "typeLength": 0
      },
      "ID2": {
        "logicalType": "STRING",
        "repetition": "OPTIONAL",
        "primitiveType": "BINARY",
        "typeLength": 0
      },
      "ID3": {
        "logicalType": "STRING",
        "repetition": "OPTIONAL",
        "primitiveType": "BINARY",
        "typeLength": 0
      },
      "ID4": {
        "logicalType": "STRING",
        "repetition": "OPTIONAL",
        "primitiveType": "BINARY",
        "typeLength": 0
      },
      "ID5": {
        "logicalType": "STRING",
        "repetition": "OPTIONAL",
        "primitiveType": "BINARY",
        "typeLength": 0
      },
      "ID6": {
        "logicalType": "STRING",
        "repetition": "OPTIONAL",
        "primitiveType": "BINARY",
        "typeLength": 0
      },
      "ID7": {
        "logicalType": "STRING",
        "repetition": "OPTIONAL",
        "primitiveType": "BINARY",
        "typeLength": 0
      },
      "ID8": {
        "logicalType": null,
        "repetition": "OPTIONAL",
        "primitiveType": "BINARY",
        "typeLength": 0
      },
      "ID9": {
        "logicalType": null,
        "repetition": "OPTIONAL",
        "primitiveType": "DOUBLE",
        "typeLength": 0
      },
      "ID10": {
        "logicalType": null,
        "repetition": "OPTIONAL",
        "primitiveType": "DOUBLE",
        "typeLength": 0
      },
      "ID11": {
        "logicalType": null,
        "repetition": "OPTIONAL",
        "primitiveType": "DOUBLE",
        "typeLength": 0
      },
      "ID12": {
        "logicalType": null,
        "repetition": "OPTIONAL",
        "primitiveType": "DOUBLE",
        "typeLength": 0
      },
      "ID13": {
        "logicalType": null,
        "repetition": "OPTIONAL",
        "primitiveType": "DOUBLE",
        "typeLength": 0
      },
      "ID14": {
        "logicalType": null,
        "repetition": "OPTIONAL",
        "primitiveType": "DOUBLE",
        "typeLength": 0
      },
      "ID15": {
        "logicalType": "DATE",
        "repetition": "OPTIONAL",
        "primitiveType": "INT32",
        "typeLength": 0
      },
      "ID16": {
        "logicalType": "TIMESTAMP(MILLIS,true)",
        "repetition": "OPTIONAL",
        "primitiveType": "INT64",
        "typeLength": 0
      },
      "ID17": {
        "logicalType": "TIMESTAMP(MILLIS,true)",
        "repetition": "OPTIONAL",
        "primitiveType": "INT64",
        "typeLength": 0
      },
      "ID18": {
        "logicalType": "TIMESTAMP(MILLIS,true)",
        "repetition": "OPTIONAL",
        "primitiveType": "INT64",
        "typeLength": 0
      },
      "ID100": {
        "logicalType": null,
        "repetition": "OPTIONAL",
        "primitiveType": "DOUBLE",
        "typeLength": 0
      }
    },
    "schema": "message document {\n  optional binary AUTOSYNC_PRIMARYKEY (STRING);\n  optional binary AUTOSYNC_VALUEHASH (STRING);\n  optional binary AUTOSYNC_CURRENTRECORDFLAG (STRING);\n  optional int64 AUTOSYNC_EFFECTIVEBEGINTIME (TIMESTAMP(MILLIS,true));\n  optional int64 AUTOSYNC_EFFECTIVEENDTIME (TIMESTAMP(MILLIS,true));\n  optional double ID1;\n  optional binary ID2 (STRING);\n  optional binary ID3 (STRING);\n  optional binary ID4 (STRING);\n  optional binary ID5 (STRING);\n  optional binary ID6 (STRING);\n  optional binary ID7 (STRING);\n  optional binary ID8;\n  optional double ID9;\n  optional double ID10;\n  optional double ID11;\n  optional double ID12;\n  optional double ID13;\n  optional double ID14;\n  optional int32 ID15 (DATE);\n  optional int64 ID16 (TIMESTAMP(MILLIS,true));\n  optional int64 ID17 (TIMESTAMP(MILLIS,true));\n  optional int64 ID18 (TIMESTAMP(MILLIS,true));\n  optional double ID100;\n}\n"
  }
]

Example

To understand the function of Parquet Parser Snap, refer to the example, Transform Document Data into Parquet Format and Vice Versa.

SnapLogic Documentation

Parquet Parser