---
warning: DO NOT CHANGE THIS MANUALLY, THIS IS GENERATED BY https://github.com/duckdb/community-extensions repository, check README there
title: tick
excerpt: |
  DuckDB Community Extensions
  QuestDB's TICK interval syntax for time filters, e.g. WHERE ts IN '[2025-01]T09:30@America/New_York#workday;6h30m'

extension:
  name: tick
  description: QuestDB's TICK interval syntax for time filters, e.g. WHERE ts IN '[2025-01]T09:30@America/New_York#workday;6h30m'
  version: 0.1.0
  language: C++
  build: cmake
  license: MIT
  maintainers:
    - lstefano71

repo:
  github: lstefano71/duckdb-tick
  ref: ae996e3c94111d4444041705c76eb641178fc605

docs:
  hello_world: |
    -- plain TIMESTAMP values are read in the session TimeZone
    SET TimeZone = 'UTC';

    -- one row per minute of January 2025
    CREATE TABLE trades AS
    SELECT ts, random() AS price
    FROM range(TIMESTAMP '2025-01-01', TIMESTAMP '2025-02-01', INTERVAL 1 MINUTE) t(ts);

    -- NYSE trading hours on every workday of January (holidays aside)
    SELECT count(*), min(ts), max(ts)
    FROM trades
    WHERE ts IN '[2025-01]T09:30@America/New_York#workday;6h30m';

    -- the first hour of trading on the workdays of January 1st to 7th
    SELECT count(*) FROM trades WHERE ts IN '2025-01-[01..07]T09:30@America/New_York#workday;1h';

    -- the intervals a pattern expands to
    SELECT * FROM tick_intervals('[2025-01]T09:30@America/New_York#workday;6h30m') LIMIT 3;
  extended_description: |
    The tick extension implements [QuestDB's TICK syntax](https://questdb.com/docs/query/operators/tick/)
    (Temporal Interval Calendar Kit): one compact string describing many time windows, with date lists,
    bracket expansion, ISO weeks, `$now`/`$today` arithmetic including business days, time zones,
    day-of-week filters and durations:

    ```sql
    SELECT * FROM trades WHERE ts IN '$today - 5bd..$today - 1bd';        -- the last five business days
    SELECT * FROM trades WHERE ts IN '$now - 1h..$now';                   -- the last hour
    SELECT * FROM logs   WHERE ts IN '2024-[01,04,07,10]-[01..07]T02:00#Sun;6h';  -- first Sunday of each quarter
    ```

    `x IN '<pattern>'` becomes `tick_in(x, '<pattern>')` through a DuckDB 2.0 grammar extension that is
    activated automatically by `LOAD tick` (for statements parsed after the `LOAD`). The pattern is expanded
    once per query and the filter is pushed into scans: Parquet files and DuckDB tables skip row groups whose
    min/max cannot match, and every scanner receives the overall time range as plain comparisons.
    `tick_intervals(pattern)` lists the expanded intervals. Patterns follow the session `TimeZone`; see the
    repository README for the differences from QuestDB.

extension_star_count: 0
extension_star_count_pretty: 0
extension_download_count: 527
extension_download_count_pretty: 527
image: '/images/community_extensions/social_preview/preview_community_extension_tick.png'
layout: community_extension_doc
---
### Compatibility Matrix

This table covers all DuckDB releases that have not reached [end-of-life](https://duckdb.org/release_calendar), including LTS releases, and shows the 2 most recent patch releases of each. Older patch releases are not listed, but the extension may be available for them as well.

<div class="extension_compatibility_table"></div>

| Platform | 1.4.4 | 1.4.5 | 1.5.5 | 1.5.6 | 2.0.0 |
| :--- | :---: | :---: | :---: | :---: | :---: |
| Linux AMD64 | ❌ | ❌ | ❌ | ❌ | ✅ |
| Linux ARM64 | ❌ | ❌ | ❌ | ❌ | ✅ |
| macOS AMD64 | ❌ | ❌ | ❌ | ❌ | ✅ |
| macOS ARM64 | ❌ | ❌ | ❌ | ❌ | ✅ |
| Windows AMD64 | ❌ | ❌ | ❌ | ❌ | ✅ |
| Windows ARM64 | ❌ | ❌ | ❌ | ❌ | ❌ |
| WebAssembly | ❌ | ❌ | ❌ | ❌ | ✅ |

### Installing and Loading
```sql
INSTALL {{ page.extension.name }} FROM community;
LOAD {{ page.extension.name }};
```

{% if page.docs.hello_world %}
### Example
```sql
{{ page.docs.hello_world }}```
{% endif %}

{% if page.docs.extended_description %}
### About {{ page.extension.name }}
{{ page.docs.extended_description }}
{% endif %}
### Added Functions

<div class="extension_functions_table"></div>

| function_name  | function_type | description | comment | examples |
|----------------|---------------|-------------|---------|----------|
| tick_in        | scalar        | NULL        | NULL    |          |
| tick_intervals | table         | NULL        | NULL    |          |

### Overloaded Functions

<div class="extension_functions_table"></div>

This extension does not add any function overloads.

### Added Types

<div class="extension_types_table"></div>

This extension does not add any types.

### Added Settings

<div class="extension_settings_table"></div>

|           name            |                       description                       |        input_type        | scope  | aliases |  typed_value  |
|---------------------------|---------------------------------------------------------|--------------------------|--------|---------|---------------|
| active_grammar_extensions | The grammar extensions used by the parser.              | VARCHAR[]                | LOCAL  | []      | [shell, tick] |
| temp_directory            | Set the directory to which temporary files are written. | VARCHAR                  | GLOBAL | []      | post.db.tmp   |
| tick_now                  | Overrides the instant $now refers to in TICK patterns   | TIMESTAMP WITH TIME ZONE | GLOBAL | []      | NULL          |