JiajunBernoulli commented on code in PR #3442:
URL: https://github.com/apache/calcite/pull/3442#discussion_r1359264724
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server/src/main/java/org/apache/calcite/server/ServerDdlExecutor.java:
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@@ -558,6 +568,71 @@ public void execute(SqlCreateTable create,
}
}
+ /** Executes a {@code CREATE TABLE LIKE} command. */
+ public void execute(SqlCreateTableLike create,
+ CalcitePrepare.Context context) {
+ final Pair<CalciteSchema, String> pair = schema(context, true,
create.name);
+ final JavaTypeFactory typeFactory = context.getTypeFactory();
+ final Table table = table(context, create.sourceTable);
+ final RelDataType rowType = table.getRowType(typeFactory);
+ InitializerExpressionFactory ief =
NullInitializerExpressionFactory.INSTANCE;
+ if (table instanceof Wrapper) {
+ final InitializerExpressionFactory sourceIef =
+ ((Wrapper) table).unwrap(InitializerExpressionFactory.class);
+ if (sourceIef != null) {
+ final Set<SqlCreateTableLike.LikeOption> optionSet = create.options();
+ final boolean includingGenerated =
+ optionSet.contains(SqlCreateTableLike.LikeOption.GENERATED)
+ || optionSet.contains(SqlCreateTableLike.LikeOption.ALL);
+ final boolean includingDefaults =
+ optionSet.contains(SqlCreateTableLike.LikeOption.DEFAULTS)
+ || optionSet.contains(SqlCreateTableLike.LikeOption.ALL);
+ ief = new NullInitializerExpressionFactory() {
Review Comment:
Need class name and document, not anonymous class.
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