Closes gh-38492

This commit optimizes the `Tag` generation for method names by only
allocating new `Tag` instances for well-known method names. Others will
be marked as "UNKNOWN".

Closes gh-38281

Closes gh-38494

* pr/38385:
  Polish "Document comments in SQL for database initialization"
  Document comments in SQL for database initialization

Closes gh-38385

See gh-38385

See gh-38385

Closes gh-38474

Closes gh-38472

See gh-38492

Closes gh-38491

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