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Version: Java (Groovy)

meta

The meta method creates a new table containing the metadata about the source table's columns.

Syntax​

source.meta()

Parameters​

The meta method does not take any arguments.

Returns​

A table containing the metadata about the source table's columns.

Example​

The following example first creates a table of weather data for Miama over three dates in January, then averages the high and low temperatures by day. Finally, the query creates a table of metadata, which shows the that the Temp column becomes a double column.

source = newTable(
    stringCol("Day","Jan 1", "Jan 1", "Jan 2", "Jan 2", "Jan 3", "Jan 3"),
    intCol("Temp", 45, 62, 48, 63, 39, 59),
)

result = source.avgBy("Day")

meta = result.meta()