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new a89fc4646a Spec: Clarify how column IDs are required (#9162)
a89fc4646a is described below
commit a89fc4646ae5e328a2ccadb98d41b79632afcf3b
Author: emkornfield <[email protected]>
AuthorDate: Wed Dec 6 00:07:46 2023 -0800
Spec: Clarify how column IDs are required (#9162)
---
format/spec.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/format/spec.md b/format/spec.md
index 5d6dded5ee..80cdd6d298 100644
--- a/format/spec.md
+++ b/format/spec.md
@@ -963,7 +963,7 @@ Note that the string map case is for maps where the key
type is a string. Using
**Data Type Mappings**
-Values should be stored in Parquet using the types and logical type
annotations in the table below. Column IDs are required.
+Values should be stored in Parquet using the types and logical type
annotations in the table below. Column IDs are required to be stored as [field
IDs](http://github.com/apache/parquet-format/blob/40699d05bd24181de6b1457babbee2c16dce3803/src/main/thrift/parquet.thrift#L459)
on the parquet schema.
Lists must use the [3-level
representation](https://github.com/apache/parquet-format/blob/master/LogicalTypes.md#lists).
