terrymanu commented on a change in pull request #12140:
URL: https://github.com/apache/shardingsphere/pull/12140#discussion_r700015744
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File path:
shardingsphere-sql-parser/shardingsphere-sql-parser-statement/src/main/java/org/apache/shardingsphere/sql/parser/sql/common/util/SQLUtil.java
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@@ -73,6 +76,15 @@
private static final String COMMENT_SUFFIX = "*/";
+ private static final Map<String, Pattern> PATTERNS = new LinkedHashMap<>();
+
+ static {
+ PATTERNS.put("$1.", Pattern.compile("^_|([^\\\\])_"));
+ PATTERNS.put("$1.*", Pattern.compile("^%|([^\\\\])%"));
+ PATTERNS.put("_", Pattern.compile("\\\\_"));
+ PATTERNS.put("%", Pattern.compile("\\\\%"));
Review comment:
Is it better to use variable name instead of map.
Variable name can self describe.
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