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new 52bdbe1f7 IMPALA-11835: [DOCS] Document that Iceberg Time Travel
queries use the old schema.
52bdbe1f7 is described below
commit 52bdbe1f7e49f9f3cdb1a41c3d4a5fe6ec9e79f7
Author: Andrew Sherman <[email protected]>
AuthorDate: Tue Jan 10 11:11:06 2023 -0800
IMPALA-11835: [DOCS] Document that Iceberg Time Travel queries use the old
schema.
Since IMPALA-10153, time travel queries use the schema of the table from
the point specified by the time travel parameters. Update the docs to
cover this change.
TESTING:
- Built docs locally
Change-Id: I8ba0b604733c14b697d268b9ea2067a829c0e351
Reviewed-on: http://gerrit.cloudera.org:8080/19420
Reviewed-by: Impala Public Jenkins <[email protected]>
Tested-by: Impala Public Jenkins <[email protected]>
---
docs/topics/impala_iceberg.xml | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/docs/topics/impala_iceberg.xml b/docs/topics/impala_iceberg.xml
index 5366e9ffc..32363f3de 100644
--- a/docs/topics/impala_iceberg.xml
+++ b/docs/topics/impala_iceberg.xml
@@ -498,9 +498,11 @@ DESCRIBE HISTORY ice_t BETWEEN '2022-01-04 10:00:00' AND
'2022-01-05 10:00:00';
</codeblock>
</p>
- <p>
- Please note that during time travel, Impala uses the current table
schema to query an older
- snapshot of the table which might have had a different schema in the
past.
+ <p rev="4.3.0 IMPALA-10893">
+ Please note that time travel queries are executed using the old schema
of the table
+ from the point specified by the time travel parameters.
+ Prior to Impala 4.3.0 the current table schema is used to query an
older
+ snapshot of the table, which might have had a different schema in the
past.
</p>
</conbody>
