docs: update API docs, CHANGELOG.md for v26.22.0 [skip ci]

Author: georgesittas

CHANGELOG.md

@@ -1,6 +1,25 @@
 Changelog
 =========
 
+## [v26.22.0] - 2025-05-27
+### :boom: BREAKING CHANGES
+- due to [`f2bf000`](https://github.com/tobymao/sqlglot/commit/f2bf000a410fb18531bb90ef1d767baf0e8bce7a) - avoid creating new alias for qualifying unpivot *(PR [#5121](https://github.com/tobymao/sqlglot/pull/5121) by [@geooo109](https://github.com/geooo109))*:
+
+  avoid creating new alias for qualifying unpivot (#5121)
+
+- due to [`a126ce8`](https://github.com/tobymao/sqlglot/commit/a126ce8a25287cf3531d815035fa3d567dc772fb) - make coalesce simplification optional, skip by default *(PR [#5123](https://github.com/tobymao/sqlglot/pull/5123) by [@barakalon](https://github.com/barakalon))*:
+
+  make coalesce simplification optional, skip by default (#5123)
+
+
+### :sparkles: New Features
+- [`82c50ce`](https://github.com/tobymao/sqlglot/commit/82c50ce68d9a1ad25095086ae3645f5c4996c18b) - **duckdb**: extend time travel parsing to take VERSION into account *(commit by [@georgesittas](https://github.com/georgesittas))*
+
+### :bug: Bug Fixes
+- [`f2bf000`](https://github.com/tobymao/sqlglot/commit/f2bf000a410fb18531bb90ef1d767baf0e8bce7a) - **optimizer**: avoid creating new alias for qualifying unpivot *(PR [#5121](https://github.com/tobymao/sqlglot/pull/5121) by [@geooo109](https://github.com/geooo109))*
+- [`a126ce8`](https://github.com/tobymao/sqlglot/commit/a126ce8a25287cf3531d815035fa3d567dc772fb) - **optimizer**: make coalesce simplification optional, skip by default *(PR [#5123](https://github.com/tobymao/sqlglot/pull/5123) by [@barakalon](https://github.com/barakalon))*
+
+
 ## [v26.21.0] - 2025-05-26
 ### :boom: BREAKING CHANGES
 - due to [`de67d3c`](https://github.com/tobymao/sqlglot/commit/de67d3c953191d77ecf8cf57e375e7d203cd8857) - error on unsupported dialect settings *(PR [#5119](https://github.com/tobymao/sqlglot/pull/5119) by [@georgesittas](https://github.com/georgesittas))*:
@@ -6818,3 +6837,4 @@ Changelog
 [v26.19.0]: https://github.com/tobymao/sqlglot/compare/v26.18.1...v26.19.0
 [v26.20.0]: https://github.com/tobymao/sqlglot/compare/v26.19.0...v26.20.0
 [v26.21.0]: https://github.com/tobymao/sqlglot/compare/v26.20.0...v26.21.0
+[v26.22.0]: https://github.com/tobymao/sqlglot/compare/v26.21.0...v26.22.0

docs/search.js

@@ -84,16 +84,16 @@ <h1 class="modulename">
 </span><span id="L-17"><a href="#L-17"><span class="linenos">17</span></a><span class="n">__version_tuple__</span><span class="p">:</span> <span class="n">VERSION_TUPLE</span>
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 </span><span id="L-19"><a href="#L-19"><span class="linenos">19</span></a>
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+</span><span id="L-20"><a href="#L-20"><span class="linenos">20</span></a><span class="n">__version__</span> <span class="o">=</span> <span class="n">version</span> <span class="o">=</span> <span class="s1">&#39;26.22.0&#39;</span>
+</span><span id="L-21"><a href="#L-21"><span class="linenos">21</span></a><span class="n">__version_tuple__</span> <span class="o">=</span> <span class="n">version_tuple</span> <span class="o">=</span> <span class="p">(</span><span class="mi">26</span><span class="p">,</span> <span class="mi">22</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
 </span></pre></div>
 
 
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@@ -105,7 +105,7 @@ <h1 class="modulename">
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-<span class="default_value">(26, 21, 0)</span>
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docs/sqlglot/_version.html

@@ -359,7 +359,7 @@ <h3 id="implementing-a-custom-dialect">Implementing a custom Dialect</h3>
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-<span class="default_value">&lt;MagicMock id=&#39;139965051056288&#39;&gt;</span>
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                     <div class="attr variable">
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-<span class="default_value">&lt;MagicMock id=&#39;139965051897360&#39;&gt;</span>
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@@ -443,7 +443,7 @@ <h3 id="implementing-a-custom-dialect">Implementing a custom Dialect</h3>
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                     <div class="attr variable">
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-<span class="default_value">&lt;MagicMock id=&#39;139965035780928&#39;&gt;</span>
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                 <section id="Hive">
                     <div class="attr variable">
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-<span class="default_value">&lt;MagicMock id=&#39;139965044198848&#39;&gt;</span>
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@@ -479,7 +479,7 @@ <h3 id="implementing-a-custom-dialect">Implementing a custom Dialect</h3>
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                     <div class="attr variable">
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-<span class="default_value">&lt;MagicMock id=&#39;139965054049952&#39;&gt;</span>
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                     <div class="attr variable">
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                     <div class="attr variable">
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-<span class="default_value">&lt;MagicMock id=&#39;139965052603360&#39;&gt;</span>
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@@ -515,7 +515,7 @@ <h3 id="implementing-a-custom-dialect">Implementing a custom Dialect</h3>
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                     <div class="attr variable">
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-<span class="default_value">&lt;MagicMock id=&#39;139965052264144&#39;&gt;</span>
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