martin-g commented on code in PR #20372:
URL: https://github.com/apache/datafusion/pull/20372#discussion_r2877412880
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datafusion/core/src/execution/context/mod.rs:
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@@ -1266,6 +1278,51 @@ impl SessionContext {
}
}
+ /// Parse capacity limit from string to number of bytes by allowing units:
K, M and G.
+ /// Supports formats like '1.5G', '100M', '512K'
+ ///
+ /// # Examples
+ /// ```
+ /// use datafusion::execution::context::SessionContext;
+ ///
+ /// assert_eq!(
+ ///
SessionContext::parse_capacity_limit("datafusion.runtime.memory_limit",
"1M").unwrap(),
+ /// 1024 * 1024
+ /// );
+ /// assert_eq!(
+ ///
SessionContext::parse_capacity_limit("datafusion.runtime.memory_limit",
"1.5G").unwrap(),
+ /// (1.5 * 1024.0 * 1024.0 * 1024.0) as usize
+ /// );
+ /// ```
+ pub fn parse_capacity_limit(config_name: &str, limit: &str) ->
Result<usize> {
+ if limit.trim().is_empty() {
+ return Err(plan_datafusion_err!(
+ "Empty limit value found for '{config_name}'"
Review Comment:
Please add a test case
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