The Avro specification requires field names to be alphanumeric. By
default, in cases when column names do not conform to these requirements
(e.g. non-ascii unicode codepoints) and Avro is requested as an output
format, the CreateReadSession call will fail.
Setting this field to true, populates avro field names with a placeholder
value and populates a "displayName" attribute for every avro field with the
original column name.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-18 UTC."],[],[]]