Arnab Karmakar 760eb4f2fa IMPALA-13066: Extend SHOW CREATE TABLE to include stats and partitions ...

Adds a new WITH STATS option to the SHOW CREATE TABLE statement to
emit additional SQL statements for recreating table statistics and
partitions.

When specified, Impala outputs:

- Base CREATE TABLE statement.

- ALTER TABLE ... SET TBLPROPERTIES for table-level stats.

- ALTER TABLE ... SET COLUMN STATS for all non-partition columns,
restoring column stats.

- For partitioned tables:

  - ALTER TABLE ... ADD PARTITION statements to recreate partitions.

  - Per-partition ALTER TABLE ... PARTITION (...) SET TBLPROPERTIES
  to restore partition-level stats.

Partition output is limited by the PARTITION_LIMIT query option
(default 1000). Setting PARTITION_LIMIT=0 includes all partitions and
emits a warning if the limit is exceeded.

Tests added to verify correctness of emitted statements. Default
behavior of SHOW CREATE TABLE remains unchanged for compatibility.

Change-Id: I87950ae9d9bb73cb2a435cf5bcad076df1570dc2
Reviewed-on: http://gerrit.cloudera.org:8080/23536
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>

2025-11-12 06:11:37 +00:00

..

fbs

IMPALA-13267: Display number of partitions for Iceberg tables

2025-09-12 20:36:10 +00:00

function-registry

IMPALA-14501: Migrate most scripts from impala-python to impala-python3

2025-10-22 16:30:17 +00:00

protobuf

IMPALA-13703: Cancel running queries before shutdown deadline

2025-02-07 10:12:54 +00:00

thrift

IMPALA-13066: Extend SHOW CREATE TABLE to include stats and partitions

2025-11-12 06:11:37 +00:00

.gitignore

Implmented opcode registry. Added substr() and pi() functions. Added backend testing to buildall.sh

2011-11-20 13:44:41 -08:00