Aggregation

Components to aggregate or disaggregate properties in your data in different ways.

Count

Description

This component creates a new table with a single row and a 'count' column containing the row count of the input table

Inputs

  • Source table [Table]

Outputs

  • Result table [Table]

External links

BigQuery reference

Snowflake reference

Redshift reference

PostgreSQL reference

Group by

Description

This component creates a new table with aggregated values.

It is required to convert spatial types to an allowed type by using 'ST_ASBINARY' before grouping by them.

Inputs

  • Source table [Table]

  • Columns and methods for aggregation [String]

  • Columns to group by [String]

Outputs

  • Result table [Table]

BigQuery reference

Snowflake reference

Redshift reference

Point Stats in Polygons

Description

This component adds new columns with statistics computed from the points of a second table that fall within each polygon.

Inputs

  • Points table [Table]

  • Polygons table [Table]

  • Geo column in points table [Column]

  • Geo column in polygons table [Column]

  • Column to compute stats for in points table [Column]

  • Column with identifier in polygons table [Column]

Outputs

  • Result table [Table]

ST Dump

Description

This component explodes multi-part geographies into multiple single-part ones.

The output table has the same structure as the input one, but the geo column only contains single part geographies. Rows with multi-part geographies are replaced by several rows with single-part geographies and identical values for the rest of columns.

Inputs

  • Source table [Table]

  • Geo column [Column]

Outputs

  • Result table [Table]

External links

BigQuery reference

Summarize

This component creates a new table with aggregated values for the input whole table.

Inputs

  • Source table [Table]

  • Aggregation: Use the UI of this component to select a list of aggregated properties that will be added to the result table.

Outputs

  • Result table [Table]

Unnest

Description

This component unnests the arrays contained an a column.

Inputs

  • Source table [Table]

  • Column [Column]

Outputs

  • Result table [Table]

External links

BigQuery reference

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