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Support '0' value for parse_capacity_limit() #22014

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Support '0' value for parse_capacity_limit() #22014

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6 changes: 5 additions & 1 deletion datafusion/core/src/execution/context/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1275,7 +1275,7 @@ 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'
/// Supports formats like '1.5G', '100M', '512K'. Capacity limit can be set to 0 with '0'.
///
/// # Examples
/// ```
Expand All @@ -1296,6 +1296,9 @@ impl SessionContext {
"Empty limit value found for '{config_name}'"
));
}
if limit == "0" {
return Ok(0);
}
let (number, unit) = limit.split_at(limit.len() - 1);
let number: f64 = number.parse().map_err(|_| {
plan_datafusion_err!(
Expand Down Expand Up @@ -2970,6 +2973,7 @@ mod tests {

// Valid capacity_limit
for (limit, want) in [
("0", 0),
("1.5K", (1.5 * 1024.0) as usize),
("2M", (2f64 * 1024.0 * 1024.0) as usize),
("1G", (1f64 * 1024.0 * 1024.0 * 1024.0) as usize),
Expand Down
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