Commit Graph

5 Commits

Author SHA1 Message Date
Costin Leau 6ee6bb55e2
SQL: Introduce HISTOGRAM grouping function (#36510)
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
2018-12-14 18:20:37 +02:00
Costin Leau f502ca53d4
SQL: Introduce NOW/CURRENT_TIMESTAMP function (#36562)
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
2018-12-14 15:42:36 +02:00
Andrei Stefan de373060fb
SQL: non ISO 8601 versions of DAY_OF_WEEK and WEEK_OF_YEAR functions (#36358)
* 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.
2018-12-12 02:29:02 +02:00
Marios Trivyzas 031d0566b0
SQL: [docs] Add `beta[]` markup to all SQL pages (#36471)
Closes: #36437
2018-12-11 13:25:29 +02:00
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