mirror of
https://github.com/timescale/timescaledb.git
synced 2025-05-22 05:31:41 +08:00
68 lines
3.4 KiB
SQL
68 lines
3.4 KiB
SQL
-- time_bucket returns the left edge of the bucket where ts falls into.
|
|
-- Buckets span an interval of time equal to the bucket_width and are aligned with the epoch.
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INTERVAL, ts TIMESTAMP) RETURNS TIMESTAMP
|
|
AS '@MODULE_PATHNAME@', 'ts_timestamp_bucket' LANGUAGE C IMMUTABLE PARALLEL SAFE STRICT;
|
|
|
|
-- bucketing of timestamptz happens at UTC time
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INTERVAL, ts TIMESTAMPTZ) RETURNS TIMESTAMPTZ
|
|
AS '@MODULE_PATHNAME@', 'ts_timestamptz_bucket' LANGUAGE C IMMUTABLE PARALLEL SAFE STRICT;
|
|
|
|
--bucketing on date should not do any timezone conversion
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INTERVAL, ts DATE) RETURNS DATE
|
|
AS '@MODULE_PATHNAME@', 'ts_date_bucket' LANGUAGE C IMMUTABLE PARALLEL SAFE STRICT;
|
|
|
|
--bucketing with origin
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INTERVAL, ts TIMESTAMP, origin TIMESTAMP) RETURNS TIMESTAMP
|
|
AS '@MODULE_PATHNAME@', 'ts_timestamp_bucket' LANGUAGE C IMMUTABLE PARALLEL SAFE STRICT;
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INTERVAL, ts TIMESTAMPTZ, origin TIMESTAMPTZ) RETURNS TIMESTAMPTZ
|
|
AS '@MODULE_PATHNAME@', 'ts_timestamptz_bucket' LANGUAGE C IMMUTABLE PARALLEL SAFE STRICT;
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INTERVAL, ts DATE, origin DATE) RETURNS DATE
|
|
AS '@MODULE_PATHNAME@', 'ts_date_bucket' LANGUAGE C IMMUTABLE PARALLEL SAFE STRICT;
|
|
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width SMALLINT, ts SMALLINT) RETURNS SMALLINT
|
|
AS '@MODULE_PATHNAME@', 'ts_int16_bucket' LANGUAGE C IMMUTABLE PARALLEL SAFE STRICT;
|
|
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INT, ts INT) RETURNS INT
|
|
AS '@MODULE_PATHNAME@', 'ts_int32_bucket' LANGUAGE C IMMUTABLE PARALLEL SAFE STRICT;
|
|
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width BIGINT, ts BIGINT) RETURNS BIGINT
|
|
AS '@MODULE_PATHNAME@', 'ts_int64_bucket' LANGUAGE C IMMUTABLE PARALLEL SAFE STRICT;
|
|
|
|
-- If an interval is given as the third argument, the bucket alignment is offset by the interval.
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INTERVAL, ts TIMESTAMP, "offset" INTERVAL)
|
|
RETURNS TIMESTAMP LANGUAGE SQL IMMUTABLE PARALLEL SAFE STRICT AS
|
|
$BODY$
|
|
SELECT @extschema@.time_bucket(bucket_width, ts-"offset")+"offset";
|
|
$BODY$;
|
|
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INTERVAL, ts TIMESTAMPTZ, "offset" INTERVAL)
|
|
RETURNS TIMESTAMPTZ LANGUAGE SQL IMMUTABLE PARALLEL SAFE STRICT AS
|
|
$BODY$
|
|
SELECT @extschema@.time_bucket(bucket_width, ts-"offset")+"offset";
|
|
$BODY$;
|
|
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INTERVAL, ts DATE, "offset" INTERVAL)
|
|
RETURNS DATE LANGUAGE SQL IMMUTABLE PARALLEL SAFE STRICT AS
|
|
$BODY$
|
|
SELECT (@extschema@.time_bucket(bucket_width, ts-"offset")+"offset")::date;
|
|
$BODY$;
|
|
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width SMALLINT, ts SMALLINT, "offset" SMALLINT)
|
|
RETURNS SMALLINT LANGUAGE SQL IMMUTABLE PARALLEL SAFE STRICT AS
|
|
$BODY$
|
|
SELECT @extschema@.time_bucket(bucket_width, ts-"offset")+"offset";
|
|
$BODY$;
|
|
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width INT, ts INT, "offset" INT)
|
|
RETURNS INT LANGUAGE SQL IMMUTABLE PARALLEL SAFE STRICT AS
|
|
$BODY$
|
|
SELECT @extschema@.time_bucket(bucket_width, ts-"offset")+"offset";
|
|
$BODY$;
|
|
|
|
CREATE OR REPLACE FUNCTION time_bucket(bucket_width BIGINT, ts BIGINT, "offset" BIGINT)
|
|
RETURNS BIGINT LANGUAGE SQL IMMUTABLE PARALLEL SAFE STRICT AS
|
|
$BODY$
|
|
SELECT @extschema@.time_bucket(bucket_width, ts-"offset")+"offset";
|
|
$BODY$;
|
|
|