The SQL action supports several text outputs and used to default to an
output that looked like the SQL CLI. It is a lovely output format but
this changes output selection behavior to mimick Elasticsearch's
standard behavior: it'll now default to the same format as the request.
That means that if you want the pretty text format then you need to ask
for it. The way to do that is:
```
POST /_xpack/sql?format=text/plain
{
"query": "SELECT * FROM library ORDER BY page_count DESC LIMIT 5"
}
```
Original commit: elastic/x-pack-elasticsearch@4a15a23b18
This allows any datetime function to be present in `EXTRACT` which feels
more consistent. `EXTRACT(FOO FROM bar)` is now just sugar for
`FOO(bar)`. This is *much* simpler to explain in the documentation then
"these 10 fields are supported by extract and they are the same as this
subset of the datetime functions."
The implementation of this is a little simpler then the old way. Instead
of resolving the function in the parser we create an
`UnresolvedFunction` that looks *almost* just like what we'd create for
a single argument function and resolve the function in the `Analyzer`.
This feels like a net positive as it allows us to group `EXTRACT`
resolution failures with other function resolution failures.
This also creates `UnresolvedFunctionTests` and
`UnresolvedAttributeTests`. I had to create `UnresolvedFunctionTests`
because `UnreolvedFunction` now has three boolean parameters which is
incompatible with the generic `NodeSubclassTests`'s requirement that all
ctor parameters be unique. I created `UnresolvedAttributeTests` because
I didn't want `UnresolvedFunctionTests` to call `NodeSubclassTests` and
figured that we'd want `UnresolvedAttributeTest` eventually and now felt
like as good a time as any.
Added a
Original commit: elastic/x-pack-elasticsearch@358aada308
Nik Everett
Costin Leau