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Package org.apache.drill.exec.record.metadata

Provides a fluent schema builder.

See: Description

Package org.apache.drill.exec.record.metadata Description

Provides a fluent schema builder. Handles all forms of Drill schemas, with emphasis on ease of use for the typical cases (flat schema or nested maps.) Enables construction of unions, union lists (AKA "list vector") repeated lists and combinations of the above structures.
SchemaBuilder
Drill normally writes data to vectors, then "discovers" the row set schema based on the data written. It is usually far easier to simply declare a schema, then read and write data according to that schema. The schema builder provides a simple, fluent tool to create a row set schema. That schema then drives the row set readers and writers, the row set printer and the row set comparison.
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