clownxc commented on code in PR #22301:
URL: https://github.com/apache/flink/pull/22301#discussion_r1155957023
##########
flink-table/flink-table-common/src/test/java/org/apache/flink/table/api/TableSchemaTest.java:
##########
@@ -328,7 +328,7 @@ void testPrimaryKeyPrinting() {
+ " |-- f0: BIGINT NOT NULL\n"
+ " |-- f1: STRING NOT NULL\n"
+ " |-- f2: DOUBLE NOT NULL\n"
- + " |-- CONSTRAINT pk PRIMARY KEY (f0, f2)\n");
+ + " |-- CONSTRAINT `pk` PRIMARY KEY (`f0`,
`f2`) NOT ENFORCED\n");
Review Comment:
there are some minor differences between the new and old APIs
```java
public final String asSummaryString() {
return String.format(
"CONSTRAINT %s %s (%s)%s",
EncodingUtils.escapeIdentifier(getName()),
getTypeString(),
columns.stream()
.map(EncodingUtils::escapeIdentifier)
.collect(Collectors.joining(", ")),
isEnforced() ? "" : " NOT ENFORCED");
}
```
The method `escapeIdentifier` of the new api adds a symbol `` to each field
```java
public static String escapeIdentifier(String s) {
return "`" + escapeBackticks(s) + "`";
}
```
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