[fix](doc) content corrections in zh 2.1 function/reference docs#3739
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- array-enumerate-uniq: the 3-array example result was [1, 1, 2, 1, 3]; the
position-3 tuple (1,1,1) is its 2nd occurrence, so the correct result is
[1, 1, 2, 2, 3].
- elt: example repeated ELT(2, ...) twice; replace with a 0/1/2 variety
(ELT(1), ELT(2), ELT(0)) and realign the result table.
- nulls: truth-table header said "Value of A" but the rows use the variable
`a`; lowercase it.
- json-exists-path: both parameter descriptions were copied from an array
function ("element to include in the JSON array" / "path to insert"); replace
with the correct JSON-string-to-inspect / path-to-test descriptions.
- json-type: syntax and parameter table listed only <json>, but the examples
pass two arguments; add the missing <path> argument.
- async-materialized-view/use-guide: claimed aggregation produces ~17,000,000
rows from a 1,000,000-row table, which is impossible (aggregation cannot
exceed the input row count). Reword: when the cardinality product approaches
or exceeds the row count, aggregation barely reduces rows.
Reported in apache#2531, apache#2523, apache#2518, apache#2533, apache#2534, apache#2477.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
Content fixes in the Chinese 2.1 docs (reader-reported):
[1, 1, 2, 1, 3]→[1, 1, 2, 2, 3](position-3 tuple(1,1,1)is its 2nd occurrence)ELT(2, ...)twice → use a 0/1/2 variety and realign the result table**Value of A**vs variablea→ lowercase toa<json>though examples pass two args → add the missing<path>argumentTest plan
Closes #2531
Closes #2523
Closes #2518
Closes #2533
Closes #2534
Closes #2477