Matches only cells from columns whose families satisfy the given RE2 regex. For technical reasons, the
regex must not contain the : character, even if it is not being used as a literal. Note
that, since column families cannot contain the new line character , it is sufficient to
use . as a full wildcard when matching column family names.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-18 UTC."],[],[]]