comphead commented on code in PR #18635:
URL: https://github.com/apache/datafusion/pull/18635#discussion_r2516220684
##########
datafusion/common/src/config.rs:
##########
@@ -606,6 +606,28 @@ config_namespace! {
/// written, it may be necessary to increase this size to avoid errors
from
/// the remote end point.
pub objectstore_writer_buffer_size: usize, default = 10 * 1024 * 1024
+
+ /// Whether to enable ANSI SQL mode.
+ ///
+ /// Currently only used in DataFusion Spark crate
+ ///
+ /// When `enable_ansi_mode` is set to `true`, the query engine
enforces ANSI SQL
+ /// semantics for expressions, casting, and error handling. This
includes:
+ /// - Strict type coercion rules: implicit casts between incompatible
types are disallowed.
+ /// - Standard SQL arithmetic behavior: operations like division by
zero or overflow
+ /// result in runtime errors instead of returning `NULL` or silently
truncating values.
Review Comment:
Thanks @hsiang-c let me think how to rephrase it better
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