* SQL: Fix translation of LIKE/RLIKE keywords
Refactor Like/RLike functions to simplify internals and improve query
translation when chained or within a script context.
Fix#36039Fix#36584
When trying to analyse a HAVING condition, we crate a temp Aggregate
Plan which wasn't created correctly (missing the expressions from the
SELECT clause) and as a result the ordinal (1, 2, etc) in the GROUP BY
couldn't be resolved correctly.
Also after successfully analysing the HAVING condition, still the
original plan was returned.
Fixes: #36059
Introduce Histogram grouping function for bucketing/grouping data based
on a given range. Both date and numeric histograms are supported using
the appropriate range declaration (numbers vs intervals).
SELECT HISTOGRAM(number, 50) AS h FROM index GROUP BY h
SELECT HISTOGRAM(date, INTERVAL 1 YEAR) AS h FROM index GROUP BY h
In addition add multiply operator for Intervals
Add docs for intervals and histogram
Fix#36509
Add CURRENT_TIMESTAMP as keyword as well function alongside NOW()
These return the current date/time for the given query, computed when
the statement reaches the server. For completeness, CURRENT_TIMESTAMP
also accepts precision as an optional parameter.
Fix#36534
Add missing `formatTemplate()` for conditional functions which
resulted in incomplete painless script. Moreover the specific
return type of Object in the painless signatures resulted in
casting exceptions when conditional functions are used in the
ORDER BY.
Fixes: #36631
The getters and setters for useDisMax() have been deprecated since at least 6.0,
also there hasn't been any reference to the query parameter in the
documentation. Removing it from the builder and tests and replacing it with
`tieBreaker(1.0f)` where necessary.
* Renamed DAY_OF_WEEK and WEEK_OF_YEAR functions to their ISO version and
added the same functions with different functionality.
* Rewritten the datetime functions documentation to follow the format of the other
functions documentation pages.
* This commit is part of our plan to deprecate and ultimately remove the use of _xpack in the REST APIs.
- REST API docs
- HLRC docs and doc tests
- Handle REST actions with deprecation warnings
- Changed endpoints in rest-api-spec and relevant file names
Move classes under the same package to avoid internal classes being
exposed to the outside. Remove public visibility outside 3 classes:
EsDriver, EsDataSource and EsTypes.
The driver only has one package, namely org.elasticsearch.xpack.sql.jdbc
Use Es prefix for classes to ease name conflict and indicate their
destination
Fix#35437
Add GREATEST(expr1, expr2, ... exprN) and LEAST(expr1, expr2, exprN)
functions which are in the family of CONDITIONAL functions.
Implementation follows PostgreSQL behaviour, so the functions return
`NULL` when all of their arguments evaluate to `NULL`.
Renamed `CoalescePipe` and `CoalesceProcessor` to `ConditionalPipe` and
`ConditionalProcessor` respectively, to be able to reuse them for
`Greatest` and `Least` evaluations. To achieve that `ConditionalOperation`
has been added to differentiate between the functionalities at execution
time.
Closes: #35878
This operator handles nulls in different way than the normal `=`.
If one of the operants is `null` and the other not it returns `false`.
If both operants are `null` it returns `true`. Therefore in contrary to
`=`, which returns `null` if at least one of the operants is `null`, this one
never returns `null` as a result.
Closes: #35871
Introduce INTERVAL as a DataType
Add INTERVAL to the grammar which supports the standard SQL declaration
(without precision):
> INTERVAL '1 23:45:01.123456789' DAY TO SECOND
but also number for single unit intervals:
> INTERVAL 1 YEAR
as well as the plurals of the units:
> INTERVAL 2 YEARS
Interval are internally supported as just another Literal being backed
by java.time.Period and java.time.Duration
Move JDBC away from JDBCType enum to SQLType interface
Refactor DataType by moving it into server core and adding dedicated (and
much simpler) JDBC driver type
Improve internal JDBC conversion by normalizing on the DataType
Rename JDBC columnInfo to JdbcColumnInfo to differentiate between it and
the SQL ColumnInfo
Fix#29990
Add `IsNull` node in parser to simplify expressions so that `<value> IS NULL` is
no longer translated internally to `NOT(<value> IS NOT NULL)`
Replace `IsNotNullProcessor` with `CheckNullProcessor` to encapsulate both
isNull and isNotNull functionality.
Closes: #34876Fixes: #35171
Override `process()` in `BinaryLogicProcessor` which doesn't immediately
return null if left or right argument is null, which is the behaviour of
`process()` of the parent class `BinaryProcessor`.
Also, add more tests for `AND` and `OR` in SELECT clause with literal.
Fixes: #35240
Add NotEquals node in parser to simplify expressions so that <value1> != <value2> is
no longer translated internally to NOT(<value1> = <value2>)
Closes: #35210Fixes: #35233
Moves `x-pack/qa/sql/*` into `x-pack/plugin/sql/qa` to make it simpler
to run all of the sql tests. This lines up with how newer projects like
cross cluster replication are testing themselves.
Andrei Stefan
Costin Leau
Costin Leau
Marios Trivyzas
Christoph Büscher
Ioannis Kakavas
Andy Bristol
Jason Tedor
Marios Trivyzas
Nik Everett