TimothyHologres commented on code in PR #10366:
URL: https://github.com/apache/gravitino/pull/10366#discussion_r2922151615
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catalogs-contrib/catalog-jdbc-hologres/src/main/java/org/apache/gravitino/catalog/hologres/operation/HologresTableOperations.java:
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@@ -78,6 +78,10 @@ public class HologresTableOperations extends
JdbcTableOperations
private static final String HOLOGRES_NOT_SUPPORT_NESTED_COLUMN_MSG =
"Hologres does not support nested column names.";
+ /** GUC parameter to enable DROP COLUMN functionality in Hologres. */
Review Comment:
Hologres is compatible with the PostgreSQL protocol. Within this protocol,
GUC (Grand Unified Configuration) is the collective term for all configurable
parameters in a PostgreSQL database. Whether it involves memory allocation,
connection limits, log levels, or query optimizer switches, any setting that
can be adjusted via configuration files, command-line arguments, or SQL
commands is referred to as a GUC parameter.
The purpose of this GUC is to allow users to execute DROP COLUMN operations.
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