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https://github.com/timescale/timescaledb.git
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0a66bdb8d3
To increase schema security we do not want to mix our own internal objects with user objects. Since chunks are created in the _timescaledb_internal schema our internal functions should live in a different dedicated schema. This patch make the necessary adjustments for the following functions: - to_unix_microseconds(timestamptz) - to_timestamp(bigint) - to_timestamp_without_timezone(bigint) - to_date(bigint) - to_interval(bigint) - interval_to_usec(interval) - time_to_internal(anyelement) - subtract_integer_from_now(regclass, bigint)
49 lines
2.7 KiB
SQL
49 lines
2.7 KiB
SQL
-- This file and its contents are licensed under the Apache License 2.0.
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-- Please see the included NOTICE for copyright information and
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-- LICENSE-APACHE for a copy of the license.
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-- This file contains utilities for time conversion.
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CREATE OR REPLACE FUNCTION _timescaledb_functions.to_unix_microseconds(ts TIMESTAMPTZ) RETURNS BIGINT
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AS '@MODULE_PATHNAME@', 'ts_pg_timestamp_to_unix_microseconds' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE OR REPLACE FUNCTION _timescaledb_functions.to_timestamp(unixtime_us BIGINT) RETURNS TIMESTAMPTZ
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AS '@MODULE_PATHNAME@', 'ts_pg_unix_microseconds_to_timestamp' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE OR REPLACE FUNCTION _timescaledb_functions.to_timestamp_without_timezone(unixtime_us BIGINT)
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RETURNS TIMESTAMP
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AS '@MODULE_PATHNAME@', 'ts_pg_unix_microseconds_to_timestamp'
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LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE OR REPLACE FUNCTION _timescaledb_functions.to_date(unixtime_us BIGINT)
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RETURNS DATE
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AS '@MODULE_PATHNAME@', 'ts_pg_unix_microseconds_to_date'
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LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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CREATE OR REPLACE FUNCTION _timescaledb_functions.to_interval(unixtime_us BIGINT) RETURNS INTERVAL
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AS '@MODULE_PATHNAME@', 'ts_pg_unix_microseconds_to_interval' LANGUAGE C IMMUTABLE STRICT PARALLEL SAFE;
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-- Time can be represented in a hypertable as an int* (bigint/integer/smallint) or as a timestamp type (
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-- with or without timezones). In metatables and other internal systems all time values are stored as bigint.
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-- Converting from int* columns to internal representation is a cast to bigint.
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-- Converting from timestamps to internal representation is conversion to epoch (in microseconds).
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CREATE OR REPLACE FUNCTION _timescaledb_functions.interval_to_usec(
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chunk_interval INTERVAL
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)
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RETURNS BIGINT LANGUAGE SQL IMMUTABLE PARALLEL SAFE AS
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$BODY$
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SELECT (int_sec * 1000000)::bigint from extract(epoch from chunk_interval) as int_sec;
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$BODY$ SET search_path TO pg_catalog, pg_temp;
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CREATE OR REPLACE FUNCTION _timescaledb_functions.time_to_internal(time_val ANYELEMENT)
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RETURNS BIGINT AS '@MODULE_PATHNAME@', 'ts_time_to_internal' LANGUAGE C VOLATILE STRICT;
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CREATE OR REPLACE FUNCTION _timescaledb_internal.cagg_watermark(hypertable_id INTEGER)
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RETURNS INT8 AS '@MODULE_PATHNAME@', 'ts_continuous_agg_watermark' LANGUAGE C STABLE STRICT PARALLEL RESTRICTED;
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CREATE OR REPLACE FUNCTION _timescaledb_internal.cagg_watermark_materialized(hypertable_id INTEGER)
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RETURNS INT8 AS '@MODULE_PATHNAME@', 'ts_continuous_agg_watermark_materialized' LANGUAGE C STABLE STRICT PARALLEL SAFE;
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CREATE OR REPLACE FUNCTION _timescaledb_functions.subtract_integer_from_now( hypertable_relid REGCLASS, lag INT8 )
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RETURNS INT8 AS '@MODULE_PATHNAME@', 'ts_subtract_integer_from_now' LANGUAGE C STABLE STRICT;
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