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Calendar-based chunking PoC #7006

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Calendar-based chunking PoC #7006

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c19a4af
Initial catalog changes
erimatnor Sep 27, 2023
0cc77c4
Fixes
erimatnor Jun 5, 2024
dddd35f
Add naive interval calculatio
erimatnor Jun 5, 2024
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13 changes: 8 additions & 5 deletions sql/ddl_api.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,8 @@ CREATE OR REPLACE FUNCTION @[email protected]_hypertable(
migrate_data BOOLEAN = FALSE,
chunk_target_size TEXT = NULL,
chunk_sizing_func REGPROC = '_timescaledb_functions.calculate_chunk_interval'::regproc,
time_partitioning_func REGPROC = NULL
time_partitioning_func REGPROC = NULL,
origin ANYELEMENT = NULL::timestamptz
) RETURNS TABLE(hypertable_id INT, schema_name NAME, table_name NAME, created BOOL) AS '@MODULE_PATHNAME@', 'ts_hypertable_create' LANGUAGE C VOLATILE;

-- A generalized hypertable creation API that can be used to convert a PostgreSQL table
Expand All @@ -53,7 +54,6 @@ CREATE OR REPLACE FUNCTION @[email protected]_hypertable(
migrate_data BOOLEAN = FALSE
) RETURNS TABLE(hypertable_id INT, created BOOL) AS '@MODULE_PATHNAME@', 'ts_hypertable_create_general' LANGUAGE C VOLATILE;


-- Set adaptive chunking. To disable, set chunk_target_size => 'off'.
CREATE OR REPLACE FUNCTION @[email protected]_adaptive_chunking(
hypertable REGCLASS,
Expand All @@ -73,7 +73,8 @@ CREATE OR REPLACE FUNCTION @[email protected]_adaptive_chunking(
CREATE OR REPLACE FUNCTION @[email protected]_chunk_time_interval(
hypertable REGCLASS,
chunk_time_interval ANYELEMENT,
dimension_name NAME = NULL
dimension_name NAME = NULL,
origin TIMESTAMPTZ = NULL
) RETURNS VOID AS '@MODULE_PATHNAME@', 'ts_dimension_set_interval' LANGUAGE C VOLATILE;

-- Update partition_interval for a hypertable.
Expand Down Expand Up @@ -133,7 +134,8 @@ CREATE OR REPLACE FUNCTION @[email protected]_dimension(
number_partitions INTEGER = NULL,
chunk_time_interval ANYELEMENT = NULL::BIGINT,
partitioning_func REGPROC = NULL,
if_not_exists BOOLEAN = FALSE
if_not_exists BOOLEAN = FALSE,
origin ANYELEMENT = NULL::timestamptz
) RETURNS TABLE(dimension_id INT, schema_name NAME, table_name NAME, column_name NAME, created BOOL)
AS '@MODULE_PATHNAME@', 'ts_dimension_add' LANGUAGE C VOLATILE;

Expand All @@ -156,7 +158,8 @@ CREATE OR REPLACE FUNCTION @[email protected]_hash(column_name NAME, number_partitio

CREATE OR REPLACE FUNCTION @[email protected]_range(column_name NAME,
partition_interval ANYELEMENT = NULL::bigint,
partition_func regproc = NULL)
partition_func regproc = NULL,
partition_origin "any" = NULL::TIMESTAMPTZ)
RETURNS _timescaledb_internal.dimension_info LANGUAGE C
AS '@MODULE_PATHNAME@', 'ts_range_dimension';

Expand Down
5 changes: 4 additions & 1 deletion sql/pre_install/tables.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -94,9 +94,12 @@ CREATE TABLE _timescaledb_catalog.dimension (
partitioning_func_schema name NULL,
partitioning_func name NULL,
-- open dimensions (e.g., time)
interval_length bigint NULL,
interval_origin bigint NOT NULL, -- origin of when to start chunk interval. TimestampTz or int64 (but always stored as a bigint).
interval interval NULL, -- calendar-based interval.
interval_length bigint NULL, -- integer-based interval
-- compress interval is used by rollup procedure during compression
-- in order to merge multiple chunks into a single one
compress_interval interval NULL,
compress_interval_length bigint NULL,
integer_now_func_schema name NULL,
integer_now_func name NULL,
Expand Down
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