HyukjinKwon commented on a change in pull request #28274:
URL: https://github.com/apache/spark/pull/28274#discussion_r412894905
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File path: docs/configuration.md
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@@ -2622,11 +2622,32 @@ Please refer to the [Security](security.html) page for
available options on how
Spark subsystems.
-{% for static_file in site.static_files %}
- {% if static_file.name == 'generated-sql-configuration-table.html' %}
### Spark SQL
-{% include_relative generated-sql-configuration-table.html %}
+#### Runtime SQL Configuration
+
+Runtime SQL configurations are per-session, mutable Spark SQL configurations.
They can be set with initial values by the config file
+and command-line options with `--conf/-c` prefixed, or by setting `SparkConf`
that are used to create `SparkSession`.
+Also, they can be set and queried by SET commands and rest to their initial
values by RESET command,
+or by `SparkSession.conf`'s setter and getter methods in runtime.
+
+{% for static_file in site.static_files %}
+ {% if static_file.name == 'generated-runtime-sql-config-table.html' %}
+ {% include_relative generated-runtime-sql-config-table.html %}
Review comment:
I intentionally removed the leading spaces here because they are
considered actual white spaces. Newer liquid syntax supports to ignore these
white spaces but I didn't use in case old Jykill is used.
Seems like it could make the html format malformed in some cases given my
rough testing. Let's remove these leading white spaces next time.
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