Skip to content

Commit

Permalink
Change docs
Browse files Browse the repository at this point in the history
  • Loading branch information
xuyu committed Feb 4, 2025
1 parent 321c420 commit 29e229e
Show file tree
Hide file tree
Showing 2 changed files with 25 additions and 26 deletions.
2 changes: 1 addition & 1 deletion core/src/main/java/org/apache/calcite/adapter/enumerable/RexImpTable.java
View file
Original file line number Diff line number Diff line change
Expand Up @@ -529,7 +529,7 @@
import static org.apache.calcite.sql.fun.SqlStdOperatorTable.UNARY_PLUS;
import static org.apache.calcite.sql.fun.SqlStdOperatorTable.UPPER;
import static org.apache.calcite.sql.fun.SqlStdOperatorTable.USER;
import static org.apache.calcite.sql.fun.SqlStdOperatorTable.VARIANTNULL;;
import static org.apache.calcite.sql.fun.SqlStdOperatorTable.VARIANTNULL;
import static org.apache.calcite.util.ReflectUtil.isStatic;

import static java.util.Objects.requireNonNull;
Expand Down
49 changes: 24 additions & 25 deletions site/_docs/reference.md
View file
Original file line number Diff line number Diff line change
Expand Up @@ -1480,31 +1480,30 @@ Not implemented:

### Date/time functions

| Operator syntax | Description
|:---------------------------------------------|:-----------
| LOCALTIME | Returns the current date and time in the session time zone in a value of datatype TIME
| LOCALTIME(precision) | Returns the current date and time in the session time zone in a value of datatype TIME, with *precision* digits of precision
| LOCALTIMESTAMP | Returns the current date and time in the session time zone in a value of datatype TIMESTAMP
| LOCALTIMESTAMP(precision) | Returns the current date and time in the session time zone in a value of datatype TIMESTAMP, with *precision* digits of precision
| CURRENT_TIME | Returns the current time in the session time zone, in a value of datatype TIMESTAMP WITH TIME ZONE
| CURRENT_DATE | Returns the current date in the session time zone, in a value of datatype DATE
| CURRENT_TIMESTAMP | Returns the current date and time in the session time zone, in a value of datatype TIMESTAMP WITH TIME ZONE
| EXTRACT(timeUnit FROM datetime) | Extracts and returns the value of a specified datetime field from a datetime value expression
| FLOOR(datetime TO timeUnit) | Rounds *datetime* down to *timeUnit*
| CEIL(datetime TO timeUnit) | Rounds *datetime* up to *timeUnit*
| YEAR(date) | Equivalent to `EXTRACT(YEAR FROM date)`. Returns an integer.
| QUARTER(date) | Equivalent to `EXTRACT(QUARTER FROM date)`. Returns an integer between 1 and 4.
| MONTH(date) | Equivalent to `EXTRACT(MONTH FROM date)`. Returns an integer between 1 and 12.
| WEEK(date) | Equivalent to `EXTRACT(WEEK FROM date)`. Returns an integer between 1 and 53.
| DAYOFYEAR(date) | Equivalent to `EXTRACT(DOY FROM date)`. Returns an integer between 1 and 366.
| DAYOFMONTH(date) | Equivalent to `EXTRACT(DAY FROM date)`. Returns an integer between 1 and 31.
| DAYOFWEEK(date) | Equivalent to `EXTRACT(DOW FROM date)`. Returns an integer between 1 and 7.
| HOUR(date) | Equivalent to `EXTRACT(HOUR FROM date)`. Returns an integer between 0 and 23.
| MINUTE(date) | Equivalent to `EXTRACT(MINUTE FROM date)`. Returns an integer between 0 and 59.
| SECOND(date) | Equivalent to `EXTRACT(SECOND FROM date)`. Returns an integer between 0 and 59.
| TIMESTAMPADD(timeUnit, integer, datetime) | Returns *datetime* with an interval of (signed) *integer* *timeUnit*s added. Equivalent to `datetime + INTERVAL 'integer' timeUnit`
| TIMESTAMPDIFF(timeUnit, datetime, datetime2) | Returns the (signed) number of *timeUnit* intervals between *datetime* and *datetime2*. Equivalent to `(datetime2 - datetime) timeUnit`
| LAST_DAY(date) | Returns the date of the last day of the month in a value of datatype DATE; For example, it returns DATE'2020-02-29' for both DATE'2020-02-10' and TIMESTAMP'2020-02-10 10:10:10'
| Operator syntax | Description
|:------------------------- |:-----------
| LOCALTIME | Returns the current date and time in the session time zone in a value of datatype TIME
| LOCALTIME(precision) | Returns the current date and time in the session time zone in a value of datatype TIME, with *precision* digits of precision
| LOCALTIMESTAMP | Returns the current date and time in the session time zone in a value of datatype TIMESTAMP
| LOCALTIMESTAMP(precision) | Returns the current date and time in the session time zone in a value of datatype TIMESTAMP, with *precision* digits of precision
| CURRENT_TIME | Returns the current time in the session time zone, in a value of datatype TIMESTAMP WITH TIME ZONE
| CURRENT_DATE | Returns the current date in the session time zone, in a value of datatype DATE
| CURRENT_TIMESTAMP | Returns the current date and time in the session time zone, in a value of datatype TIMESTAMP WITH TIME ZONE
| EXTRACT(timeUnit FROM datetime) | Extracts and returns the value of a specified datetime field from a datetime value expression
| FLOOR(datetime TO timeUnit) | Rounds *datetime* down to *timeUnit*
| CEIL(datetime TO timeUnit) | Rounds *datetime* up to *timeUnit*
| YEAR(date) | Equivalent to `EXTRACT(YEAR FROM date)`. Returns an integer.
| QUARTER(date) | Equivalent to `EXTRACT(QUARTER FROM date)`. Returns an integer between 1 and 4.
| MONTH(date) | Equivalent to `EXTRACT(MONTH FROM date)`. Returns an integer between 1 and 12.
| WEEK(date) | Equivalent to `EXTRACT(WEEK FROM date)`. Returns an integer between 1 and 53.
| DAYOFYEAR(date) | Equivalent to `EXTRACT(DOY FROM date)`. Returns an integer between 1 and 366.
| DAYOFMONTH(date) | Equivalent to `EXTRACT(DAY FROM date)`. Returns an integer between 1 and 31.
| DAYOFWEEK(date) | Equivalent to `EXTRACT(DOW FROM date)`. Returns an integer between 1 and 7.
| HOUR(date) | Equivalent to `EXTRACT(HOUR FROM date)`. Returns an integer between 0 and 23.
| MINUTE(date) | Equivalent to `EXTRACT(MINUTE FROM date)`. Returns an integer between 0 and 59.
| SECOND(date) | Equivalent to `EXTRACT(SECOND FROM date)`. Returns an integer between 0 and 59.
| TIMESTAMPADD(timeUnit, integer, datetime) | Returns *datetime* with an interval of (signed) *integer* *timeUnit*s added. Equivalent to `datetime + INTERVAL 'integer' timeUnit`
| LAST_DAY(date) | Returns the date of the last day of the month in a value of datatype DATE; For example, it returns DATE'2020-02-29' for both DATE'2020-02-10' and TIMESTAMP'2020-02-10 10:10:10'

Calls to niladic functions such as `CURRENT_DATE` do not accept parentheses in
standard SQL. Calls with parentheses, such as `CURRENT_DATE()` are accepted in certain
Expand Down

0 comments on commit 29e229e

Please sign in to comment.