Previously, `Mapper` was returning an incorrect plan which resulted in an
```
SQLFeatureNotSupportedException: Found 1 problem(s)
line 1:8: Unexecutable item
```
Queries with a `WHERE` and/or `HAVING` clause which results in NO_MATCH
are now handled correctly and return 0 rows.
Fixes: #34613
Co-authored-by: Costin Leau <costin.leau@gmail.com>
Implemented null handling for both the value tested but also for
values inside the list of values tested against.
The null handling is implemented for local processors, painless scripts
and Lucene Terms queries making it available for `IN` expressions occuring
in `SELECT`, `WHERE` and `HAVING` clauses.
Closes: #34582
Extend querying support on multiple indices from being strictly
identical to being just compatible.
Use FieldCapabilities API (extended through #33803) for mapping merging.
Close#31837#31611
Implement the functionality to translate the
`field IN (value1, value2,...)` expressions to proper Lucene queries
or painless script or local processors depending on the use case.
The `IN` expression can be used in SELECT, WHERE and HAVING clauses.
Closes: #32955
`CONVERT` works exactly like cast with slightly different syntax:
`CONVERT(<value>, <data_type)` as opposed to `CAST(<value> AS <data_type>)`
Moreover it support format of the MS-SQL data types `SQL_<type>`,
e.g.: `SQL_INTEGER`
Closes: #34513
Make SQL aware of missing and/or unmapped fields treating them as NULL
Make _all_ functions and operators null-safe aware, including when used
in filtering or sorting contexts
Add missing and null-safe doc value extractor
Modify dataset to have null fields spread around (in groups of 10)
Enforce missing last and unmapped_type inside sorting
Consolidate Predicate templating and declaration
Add support for Like/RLike in scripting
Generalize NULLS LAST/FIRST
Introduce early schema declaration for CSV spec tests: to keep the doc
snippets in place (introduce schema:: prefix for declaration)
upfront.
Fix#32079
A constant can now be used outside aggregation only queries.
Don't skip an ES query in case of constants-only selects.
Loosen the binary pipe restriction of being used only in aggregation queries.
Fixes https://github.com/elastic/elasticsearch/issues/31863
* New OCTET_LENGTH function
* Changed the way the FunctionRegistry stores functions, considering the alphabetic ordering by name
* Added documentation for the RANDOM function
Previously, parsing an arithmetic expression with `*` and no spaces,
e.g.: `2*i` threw a parsing exception as the grammar rule for
tableIdentifier was clashing with the rule for arithmetic operator `*`.
This issue comes already in the lexer and the left part of the
expression (in our example `2*`) was recognised as a
TABLE_IDENTIFIER token.
The solution adopted is to allow the `*` wildcard in the table name
only if it's surrounded with double quotes, e.g.: `"my*index"`
Closes: #33957
We use wrap code in `// tag` and `//end` to include it in our docs. Our
current docs style wraps code snippets in a box that is only wide enough
for 76 characters and adds a horizontal scroll bar for wider snippets
which makes the snippet much harder to read. This adds a checkstyle check
that looks for java code that is included in the docs and is wider than
that 76 characters so all snippets fit into the box. It solves many of
the failures that this catches but suppresses many more. I will clean
those up in a follow up change.
Centralize and simplify the script generation between operators and functions which are currently decoupled. As part of this process most predicates (<, <=, etc...) were made ScalarFunction as their purpose and functionality is quite similar (see % and MOD functions).
Renamed ProcessDefinition to Pipe
Add ScriptWeaver as a mixin-in interface for script customization
Add logic for equals/lte/lt
Improve BinaryOperator/expression toString
Minimize duplication across string functions
Close#33975
This change cleans up "unused variable" warnings. There are several cases were we
most likely want to suppress the warnings (especially in the client documentation test
where the snippets contain many unused variables). In a lot of cases the unused
variables can just be deleted though.
Two issues are resolved:
1. The `value_type` should be either long or double in case of numeric.
2. The key label for the aggregate filter (having) was duplicate of an aggr key label.
Fixes: #33520
* Changed the format of the String functions documentation page.
* Adopted the same format for Math functions, but completely changed the examples.
* Added missing documentation for Math functions.
* Added TRUNCATE function, modified ROUND to accept two parameters instead of one. Made the second parameter optional for both functions.
* Added documentation for both functions.
Previously multiple comma separated lists of options where not
recognized correctly which resulted in only the last of them
to be taked into account, e.g.:
For the following query:
SELECT * FROM test WHERE QUERY('search', 'default_field=foo', 'default_operator=and')"
only the `default_operator=and` was finally passed to the ES query.
Fixes: #32602
Changes the format of log events in the audit logfile.
It also changes the filename suffix from `_access` to `_audit`.
The new entry format is consistent with Elastic Common Schema.
Entries are formatted as JSON with no nested objects and field
names have a dotted syntax. Moreover, log entries themselves
are not spaced by commas and there is exactly one entry per line.
In addition, entry fields are ordered, unlike a typical JSON doc,
such that a human would not strain his eyes over jumbled
fields from one line to the other; the order is defined in the log4j2
properties file.
The implementation utilizes the log4j2's `StringMapMessage`.
This means that the application builds the log event as a map
and the log4j logic (the appender's layout) handle the format
internally. The layout, such as the set of printed fields and their
order, can be changed at runtime without restarting the node.
Previously, when an non-pruned cast (casting as a different
data type) got applied on a table column in the `SELECT` clause,
the name of the result column didn't contain the target data type
of the cast, e.g.:
SELECT CAST(MAX(salary) AS DOUBLE) FROM "test_emp"
returned as column name:
CAST(MAX(salary))
instead of:
CAST(MAX(salary) AS DOUBLE)
Closes#33571
* Added more tests for trivial casts that are pruned
Previously, when an arithmetic function got applied on a
table column in the `SELECT` clause, the name of the result
column contained weird characters used internally when
processing the SQL statement e.g.:
SELECT CHAR(emp_no % 10000) FROM "test_emp"
returned:
CHAR((emp_no{f}#14) % 10000))
as the column name instead of:
CHAR((emp_no) % 10000))
Also, fix an issue that causes a ClassCastException to be thrown
when using functions where both arguments are literals.
Closes#31869Closes#33461
Split function section into multiple chapters
Add String functions
Add (small) section on Conversion/Cast functions
Add missing aggregation functions
Enable documentation testing (was disabled by accident). While at it,
fix failing tests
Improve spec tests to allow multi-line queries (useful for docs)
Add ability to ignore a spec test (name should end with -Ignore)
Extend SHOW TABLES, DESCRIBE and SHOW COLUMNS to support table
identifiers not just SQL LIKE pattern.
This allows both Elasticsearch-style multi-index patterns and SQL LIKE.
To disambiguate between the two (as the " vs ' can be easy to miss),
the grammar now requires LIKE keyword as a prefix for all LIKE-like
patterns.
Also added some docs comparing the two types of patterns.
Fix#33294
* Tests for JdbcResultSet
* Added VARCHAR conversion for different types
* Made error messages consistent: they now contain both the type that fails to be converted and the value itself
This reworks how we configure the `shadow` plugin in the build. The major
change is that we no longer bundle dependencies in the `compile` configuration,
instead we bundle dependencies in the new `bundle` configuration. This feels
more right because it is a little more "opt in" rather than "opt out" and the
name of the `bundle` configuration is a little more obvious.
As an neat side effect of this, the `runtimeElements` configuration used when
one project depends on another now contains exactly the dependencies needed
to run the project so you no longer need to reference projects that use the
shadow plugin like this:
```
testCompile project(path: ':client:rest-high-level', configuration: 'shadow')
```
You can instead use the much more normal:
```
testCompile "org.elasticsearch.client:elasticsearch-rest-high-level-client:${version}"
```
Skip the comparative tests using lowercasing/uppercasing against H2 (which considers the Locale).
ES-SQL is, so far, ignoring the Locale.
Still, the same queries are executed against ES-SQL alone and results asserted to be correct.
Added support for string manipulating functions with more than one parameter:
CONCAT, LEFT, RIGHT, REPEAT, POSITION, LOCATE, REPLACE, SUBSTRING, INSERT
Pratik Sanglikar
Marios Trivyzas
Costin Leau
Andrei Stefan
Kazuhiro Sera
Nik Everett
Christoph Büscher
Albert Zaharovits
Michael Basnight
Costin Leau
Alpar Torok
Nhat Nguyen
Colin Goodheart-Smithe