Commit Graph

83 Commits

Author SHA1 Message Date
Marios Trivyzas 92acf47c16
SQL: Implement NVL(expr1, expr2) (#35794)
Add NVL as alias to IFNULL as they have the same
behaviour. Add basic tests and docs.

Closes: #35782
2018-11-22 11:41:00 +01:00
Marios Trivyzas d95d885bae
SQL: Implement ISNULL(expr1, expr2) (#35793)
Add ISNULL as an alias of IFNULL as they have the
same behaviour. Add basic test and docs.

Closes: #35781
2018-11-21 23:15:10 +01:00
Marios Trivyzas e179bd393d
SQL: Implement IFNULL variant of COALESCE (#35762)
IFNULL is a MySQL variant (also used in other DBs) which
takes only 2 arguments and returns the first one that is not null.

Closes: #35749
2018-11-21 17:07:07 +01:00
Marios Trivyzas b1818dbdce
SQL: [docs] Add documentation for COALESCE (#35740)
Follows: #35253
2018-11-21 01:43:05 +01:00
Deb Adair 91a38b8fe0 [DOCS] Fixed bad cross doc link. 2018-11-14 16:09:18 -08:00
debadair 38d6bb27f5
[DOCS] Added link to standalone ODBC driver doc. (#35526) 2018-11-14 15:23:28 -08:00
Thiago Souza 98e075227b [Doc] Correct jdbc url example (#35513)
Adds a missing `?` to separate the url parameters.
2018-11-14 17:30:23 +01:00
Nik Everett 0f9a7b3344 Docs: Fix build after moving SQL QA
I moved SQL's QA in #34496 to make it easier to run all of SQL tests in
one go but forgot to update the docs build. This fixes that.
2018-10-30 15:47:25 -04:00
Costin Leau ca6808e55d
SQL: Support pattern against compatible indices (#34718)
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
2018-10-23 17:07:51 +03:00
Marios Trivyzas 4a8386f271
SQL: Implement IN(value1, value2, ...) expression. (#34581)
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
2018-10-23 14:28:23 +02:00
Marios Trivyzas e9e140790a
SQL: Implement `CONVERT`, an alternative to `CAST` (#34660)
`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
2018-10-23 11:21:15 +02:00
Costin Leau 52104aac27
SQL: Introduce support for NULL values (#34573)
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
2018-10-19 16:44:33 +03:00
Andrei Stefan d7a94fb6aa
SQL: Functions enhancements (OCTET_LENGTH function, order functions alphabetically, RANDOM function docs) (#34101)
* New OCTET_LENGTH function
* Changed the way the FunctionRegistry stores functions, considering the alphabetic ordering by name
* Added documentation for the RANDOM function
2018-10-09 00:20:18 +03:00
Kazuhiro Sera d45fe43a68 Fix a variety of typos and misspelled words (#32792) 2018-10-03 18:11:38 +01:00
Marios Trivyzas a8a2a83d45
SQL: Fix grammar for `*` in arithm expressions (#34176)
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
2018-10-02 11:47:42 +03:00
Lisa Cawley 68b42f7d89
[DOCS] Moves reserved keywords under SQL section (#34124) 2018-09-28 10:17:41 -07:00
Lisa Cawley 949e4e9d1a
[DOCS] Synchronizes captialization in top-level titles (#33605) 2018-09-27 08:36:18 -07:00
Andrei Stefan 0fae6d39f5
SQL: functions docs update (#34000)
* 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.
2018-09-25 02:42:18 +03:00
Andrei Stefan 6fb7e49b22
SQL: TRUNCATE and ROUND functions (#33779)
* 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.
2018-09-20 15:29:53 +03:00
Costin Leau 32a22ca00e DOC: improved wording in SQL client app section 2018-09-13 22:07:23 +03:00
Costin Leau a192785fc8 DOC: Add SQL section on client applications
Add setup instructions for a number of GUI SQL applications
2018-09-13 15:44:52 +03:00
Costin Leau 443f9caddd DOC: Enhance SQL Functions documentation
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)
2018-09-06 18:09:53 +03:00
lcawl c5109a54ee [DOCS] Revert fix for broken link 2018-09-04 09:26:28 -07:00
Costin Leau 43f80fa82b DOCS: Fix anchor and example typos 2018-09-04 19:06:44 +03:00
lcawl 303ae25a6a [DOCS] Fixes broken link 2018-09-04 09:05:30 -07:00
Costin Leau 17c7f99343
SQL: Show/desc commands now support table ids (#33363)
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
2018-09-04 16:54:10 +03:00
Andrei Stefan 20e1b5e2fe
Different handling for security specific errors in the CLI. Fix for https://github.com/elastic/elasticsearch/issues/33230 (#33255) 2018-08-31 13:08:32 +03:00
lipsill b7c0d2830a [Docs] Remove repeating words (#33087) 2018-08-28 13:16:43 +02:00
Dominik 525cda0331 Minor spelling and grammar fix (#32931) 2018-08-28 12:50:19 +02:00
Costin Leau 9ffb26ab02
SQL: Remove restriction for single column grouping (#31818)
For historical reasons SQL restricts GROUP BY to only one field.
This commit removes the restriction and improves the test suite with
multi group by tests.

Close #31793
2018-07-06 20:55:27 +03:00
Costin Leau 093ea037b4 [DOCS] Typos 2018-07-03 17:19:48 +03:00
Costin Leau de9e56aa01
DOC: Add examples to the SQL docs (#31633)
Significantly improve the example snippets in the documentation.
The examples are part of the test suite and checked nightly.
To help readability, the existing dataset was extended (test_emp renamed
to emp plus library).
Improve output of JDBC tests to be consistent with the CLI
Add lenient flag to JDBC asserts to allow type widening (a long is
equivalent to a integer as long as the value is the same).
2018-07-03 16:56:31 +03:00
Lisa Cawley 638b9fd88c
[DOCS] Move sql to docs (#31474) 2018-06-22 15:40:25 -07:00