The function catalogue is now real rather than a pointer. Scalar functions are
listed by taxonomy -- math, string, unicode, regex, date/time, array, map,
struct, crypto, type -- and the names come from what datafusion-functions 54
actually registers, not from what DataFusion documents on main. Aggregate and
window pages gain the same treatment.
Two things the audit corrected rather than copied.
SHOW TABLES does not work. DataFusion implements it over information_schema,
which this session does not enable, so it fails at plan time. It was documented
as working here, on the SHOW page and in three Manage tables; all four are
fixed, and the SQL overview now lists the absence alongside SHOW COLUMNS.
Prepared statements are a Flight SQL protocol feature, not a PREPARE statement.
A script carrying PREPARE ... AS SELECT will not run, while the same intent
expressed through a client will. The new page says so rather than copying
DataFusion's syntax.
Every section of the Documentation tab that has a SQL counterpart now links to
it -- 27 of 76 non-SQL pages, each pointing at the specific statement rather
than at the reference index.
Versioning and branching are properties of a table, not steps in getting data
in, so they join the Table group. Consistency stays with Ingestion, where the
question it answers -- when do other writers' rows become visible -- is asked.
The Ingesting Data page was in the Table group while an Ingestion overview
existed separately, so the two are merged. The large-dataset section was
duplicated between it and the insert page; the insert page keeps it.
Schema and Data Evolution covered two different things under one title.
Changing a table's shape stays in Table management; deriving values from data
already there becomes a Feature engineering page, next to computed columns and
functions, which are the same job at larger scale.
Jack Ye