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152 changes: 76 additions & 76 deletions mozfun/bits28/index.html
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<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>

<li class="md-nav__item">
<a href="#to_dates-udf" class="md-nav__link">
to_dates (UDF)
<a href="#active_in_range-udf" class="md-nav__link">
active_in_range (UDF)
</a>

<nav class="md-nav" aria-label="to_dates (UDF)">
<nav class="md-nav" aria-label="active_in_range (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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</li>

<li class="md-nav__item">
<a href="#days_since_seen-udf" class="md-nav__link">
days_since_seen (UDF)
<a href="#from_string-udf" class="md-nav__link">
from_string (UDF)
</a>

<nav class="md-nav" aria-label="days_since_seen (UDF)">
<nav class="md-nav" aria-label="from_string (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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</li>

<li class="md-nav__item">
<a href="#to_string-udf" class="md-nav__link">
to_string (UDF)
<a href="#retention-udf" class="md-nav__link">
retention (UDF)
</a>

<nav class="md-nav" aria-label="to_string (UDF)">
<nav class="md-nav" aria-label="retention (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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</li>

<li class="md-nav__item">
<a href="#retention-udf" class="md-nav__link">
retention (UDF)
<a href="#to_string-udf" class="md-nav__link">
to_string (UDF)
</a>

<nav class="md-nav" aria-label="retention (UDF)">
<nav class="md-nav" aria-label="to_string (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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</li>

<li class="md-nav__item">
<a href="#from_string-udf" class="md-nav__link">
from_string (UDF)
<a href="#to_dates-udf" class="md-nav__link">
to_dates (UDF)
</a>

<nav class="md-nav" aria-label="from_string (UDF)">
<nav class="md-nav" aria-label="to_dates (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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</li>

<li class="md-nav__item">
<a href="#active_in_range-udf" class="md-nav__link">
active_in_range (UDF)
<a href="#days_since_seen-udf" class="md-nav__link">
days_since_seen (UDF)
</a>

<nav class="md-nav" aria-label="active_in_range (UDF)">
<nav class="md-nav" aria-label="days_since_seen (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>

<li class="md-nav__item">
<a href="#to_dates-udf" class="md-nav__link">
to_dates (UDF)
<a href="#active_in_range-udf" class="md-nav__link">
active_in_range (UDF)
</a>

<nav class="md-nav" aria-label="to_dates (UDF)">
<nav class="md-nav" aria-label="active_in_range (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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</li>

<li class="md-nav__item">
<a href="#days_since_seen-udf" class="md-nav__link">
days_since_seen (UDF)
<a href="#from_string-udf" class="md-nav__link">
from_string (UDF)
</a>

<nav class="md-nav" aria-label="days_since_seen (UDF)">
<nav class="md-nav" aria-label="from_string (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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</li>

<li class="md-nav__item">
<a href="#to_string-udf" class="md-nav__link">
to_string (UDF)
<a href="#retention-udf" class="md-nav__link">
retention (UDF)
</a>

<nav class="md-nav" aria-label="to_string (UDF)">
<nav class="md-nav" aria-label="retention (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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</li>

<li class="md-nav__item">
<a href="#retention-udf" class="md-nav__link">
retention (UDF)
<a href="#to_string-udf" class="md-nav__link">
to_string (UDF)
</a>

<nav class="md-nav" aria-label="retention (UDF)">
<nav class="md-nav" aria-label="to_string (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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</li>

<li class="md-nav__item">
<a href="#from_string-udf" class="md-nav__link">
from_string (UDF)
<a href="#to_dates-udf" class="md-nav__link">
to_dates (UDF)
</a>

<nav class="md-nav" aria-label="from_string (UDF)">
<nav class="md-nav" aria-label="to_dates (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
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</li>

<li class="md-nav__item">
<a href="#active_in_range-udf" class="md-nav__link">
active_in_range (UDF)
<a href="#days_since_seen-udf" class="md-nav__link">
days_since_seen (UDF)
</a>

<nav class="md-nav" aria-label="active_in_range (UDF)">
<nav class="md-nav" aria-label="days_since_seen (UDF)">
<ul class="md-nav__list">

<li class="md-nav__item">
Expand Down Expand Up @@ -3830,18 +3830,22 @@ <h1 id="bits28">bits28</h1>
type of the field is a BigQuery INT64, but logically the integer
represents an array of bits, with each 1 indicating a day where the given clients
was active and each 0 indicating a day where the client was inactive.</p>
<h2 id="to_dates-udf">to_dates (UDF)</h2>
<p>Convert a bit pattern into an array of the dates is represents.</p>
<h2 id="active_in_range-udf">active_in_range (UDF)</h2>
<p>Return a boolean indicating if any bits are set in the specified range
of a bit pattern. The <code>start_offset</code> must be zero or a negative number
indicating an offset from the rightmost bit in the pattern. n_bits is
the number of bits to consider, counting right from the bit at
<code>start_offset</code>.</p>
<p>See detailed docs for the bits28 suite of functions:
<a href="https://docs.telemetry.mozilla.org/cookbooks/clients_last_seen_bits.html#udf-reference">https://docs.telemetry.mozilla.org/cookbooks/clients_last_seen_bits.html#udf-reference</a></p>
<h3 id="parameters">Parameters</h3>
<p><strong>INPUTS</strong></p>
<div class="highlight"><pre><span></span><code>bits INT64, submission_date DATE
<div class="highlight"><pre><span></span><code>bits INT64, start_offset INT64, n_bits INT64
</code></pre></div>
<p><strong>OUTPUTS</strong></p>
<div class="highlight"><pre><span></span><code>ARRAY&lt;DATE&gt;
<div class="highlight"><pre><span></span><code>BOOLEAN
</code></pre></div>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/to_dates">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/to_dates/metadata.yaml">Edit</a></p>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/active_in_range">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/active_in_range/metadata.yaml">Edit</a></p>
<h2 id="range-udf">range (UDF)</h2>
<p>Return an INT64 representing a range of bits from a source bit pattern.</p>
<p>The start_offset must be zero or a negative number indicating an offset from
Expand All @@ -3867,25 +3871,27 @@ <h3 id="parameters_1">Parameters</h3>
<div class="highlight"><pre><span></span><code>INT64
</code></pre></div>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/range">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/range/metadata.yaml">Edit</a></p>
<h2 id="days_since_seen-udf">days_since_seen (UDF)</h2>
<p>Return the position of the rightmost set bit in an INT64 bit pattern.</p>
<p>To determine this position, we take a bitwise AND of the bit pattern and
its complement, then we determine the position of the bit via base-2
logarithm; see <a href="https://stackoverflow.com/a/42747608/1260237">https://stackoverflow.com/a/42747608/1260237</a></p>
<h2 id="from_string-udf">from_string (UDF)</h2>
<p>Convert a string representing individual bits into an INT64.</p>
<p>Implementation based on <a href="https://stackoverflow.com/a/51600210/1260237">https://stackoverflow.com/a/51600210/1260237</a></p>
<p>See detailed docs for the bits28 suite of functions:
<a href="https://docs.telemetry.mozilla.org/cookbooks/clients_last_seen_bits.html#udf-reference">https://docs.telemetry.mozilla.org/cookbooks/clients_last_seen_bits.html#udf-reference</a></p>
<div class="highlight"><pre><span></span><code><span class="k">SELECT</span>
<span class="w"> </span><span class="n">mozfun</span><span class="p">.</span><span class="n">bits28</span><span class="p">.</span><span class="n">days_since_seen</span><span class="p">(</span><span class="mi">18</span><span class="p">)</span>
<span class="c1">-- &gt;&gt; 1</span>
</code></pre></div>
<h3 id="parameters_2">Parameters</h3>
<p><strong>INPUTS</strong></p>
<div class="highlight"><pre><span></span><code>bits INT64
<div class="highlight"><pre><span></span><code>s STRING
</code></pre></div>
<p><strong>OUTPUTS</strong></p>
<div class="highlight"><pre><span></span><code>INT64
</code></pre></div>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/days_since_seen">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/days_since_seen/metadata.yaml">Edit</a></p>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/from_string">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/from_string/metadata.yaml">Edit</a></p>
<h2 id="retention-udf">retention (UDF)</h2>
<p>Return a nested struct providing booleans indicating whether a given client
was active various time periods based on the passed bit pattern.</p>
<h3 id="parameters_3">Parameters</h3>
<p><strong>INPUTS</strong></p>
<div class="highlight"><pre><span></span><code>bits INT64, submission_date DATE
</code></pre></div>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/retention">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/retention/metadata.yaml">Edit</a></p>
<h2 id="to_string-udf">to_string (UDF)</h2>
<p>Convert an INT64 field into a 28-character string representing
the individual bits.</p>
Expand All @@ -3898,51 +3904,45 @@ <h2 id="to_string-udf">to_string (UDF)</h2>
<span class="c1">-- &#39;0000000000000000000000000010&#39;,</span>
<span class="c1">-- &#39;0000000000000000000000000011&#39;]</span>
</code></pre></div>
<h3 id="parameters_3">Parameters</h3>
<h3 id="parameters_4">Parameters</h3>
<p><strong>INPUTS</strong></p>
<div class="highlight"><pre><span></span><code>bits INT64
</code></pre></div>
<p><strong>OUTPUTS</strong></p>
<div class="highlight"><pre><span></span><code>STRING
</code></pre></div>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/to_string">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/to_string/metadata.yaml">Edit</a></p>
<h2 id="retention-udf">retention (UDF)</h2>
<p>Return a nested struct providing booleans indicating whether a given client
was active various time periods based on the passed bit pattern.</p>
<h3 id="parameters_4">Parameters</h3>
<p><strong>INPUTS</strong></p>
<div class="highlight"><pre><span></span><code>bits INT64, submission_date DATE
</code></pre></div>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/retention">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/retention/metadata.yaml">Edit</a></p>
<h2 id="from_string-udf">from_string (UDF)</h2>
<p>Convert a string representing individual bits into an INT64.</p>
<p>Implementation based on <a href="https://stackoverflow.com/a/51600210/1260237">https://stackoverflow.com/a/51600210/1260237</a></p>
<h2 id="to_dates-udf">to_dates (UDF)</h2>
<p>Convert a bit pattern into an array of the dates is represents.</p>
<p>See detailed docs for the bits28 suite of functions:
<a href="https://docs.telemetry.mozilla.org/cookbooks/clients_last_seen_bits.html#udf-reference">https://docs.telemetry.mozilla.org/cookbooks/clients_last_seen_bits.html#udf-reference</a></p>
<h3 id="parameters_5">Parameters</h3>
<p><strong>INPUTS</strong></p>
<div class="highlight"><pre><span></span><code>s STRING
<div class="highlight"><pre><span></span><code>bits INT64, submission_date DATE
</code></pre></div>
<p><strong>OUTPUTS</strong></p>
<div class="highlight"><pre><span></span><code>INT64
<div class="highlight"><pre><span></span><code>ARRAY&lt;DATE&gt;
</code></pre></div>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/from_string">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/from_string/metadata.yaml">Edit</a></p>
<h2 id="active_in_range-udf">active_in_range (UDF)</h2>
<p>Return a boolean indicating if any bits are set in the specified range
of a bit pattern. The <code>start_offset</code> must be zero or a negative number
indicating an offset from the rightmost bit in the pattern. n_bits is
the number of bits to consider, counting right from the bit at
<code>start_offset</code>.</p>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/to_dates">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/to_dates/metadata.yaml">Edit</a></p>
<h2 id="days_since_seen-udf">days_since_seen (UDF)</h2>
<p>Return the position of the rightmost set bit in an INT64 bit pattern.</p>
<p>To determine this position, we take a bitwise AND of the bit pattern and
its complement, then we determine the position of the bit via base-2
logarithm; see <a href="https://stackoverflow.com/a/42747608/1260237">https://stackoverflow.com/a/42747608/1260237</a></p>
<p>See detailed docs for the bits28 suite of functions:
<a href="https://docs.telemetry.mozilla.org/cookbooks/clients_last_seen_bits.html#udf-reference">https://docs.telemetry.mozilla.org/cookbooks/clients_last_seen_bits.html#udf-reference</a></p>
<div class="highlight"><pre><span></span><code><span class="k">SELECT</span>
<span class="w"> </span><span class="n">mozfun</span><span class="p">.</span><span class="n">bits28</span><span class="p">.</span><span class="n">days_since_seen</span><span class="p">(</span><span class="mi">18</span><span class="p">)</span>
<span class="c1">-- &gt;&gt; 1</span>
</code></pre></div>
<h3 id="parameters_6">Parameters</h3>
<p><strong>INPUTS</strong></p>
<div class="highlight"><pre><span></span><code>bits INT64, start_offset INT64, n_bits INT64
<div class="highlight"><pre><span></span><code>bits INT64
</code></pre></div>
<p><strong>OUTPUTS</strong></p>
<div class="highlight"><pre><span></span><code>BOOLEAN
<div class="highlight"><pre><span></span><code>INT64
</code></pre></div>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/active_in_range">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/active_in_range/metadata.yaml">Edit</a></p>
<p><a href="https://github.com/mozilla/bigquery-etl/blob/generated-sql/sql//mozfun/bits28/days_since_seen">Source</a> | <a href="https://github.com/mozilla/bigquery-etl/edit/generated-sql/sql//mozfun/bits28/days_since_seen/metadata.yaml">Edit</a></p>



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