yuqi1129 commented on code in PR #10318:
URL: https://github.com/apache/gravitino/pull/10318#discussion_r2965942532
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catalogs-contrib/catalog-jdbc-clickhouse/src/main/java/org/apache/gravitino/catalog/clickhouse/converter/ClickHouseColumnDefaultValueConverter.java:
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@@ -57,10 +58,19 @@ public String fromGravitino(Expression defaultValue) {
return literal.value().toString();
} else {
Object value = literal.value();
+ Preconditions.checkArgument(
+ value != null, "Null default literal value is not supported for
ClickHouse.");
if (value instanceof LocalDateTime) {
value = ((LocalDateTime) value).format(DATE_TIME_FORMATTER);
+ } else if (value instanceof String str
+ && str.length() >= 2
+ && str.startsWith("'")
+ && str.endsWith("'")) {
+ // The API caller may pass quoted string literals (e.g. "'active'"),
but DDL generation
+ // is responsible for adding the outer quotes.
Review Comment:
> if the value = "'active'", that means the const value is "'active'", right?
The value should be `'active'`.
> should pass to '''a''' to the DDL
What do you mean here?
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