danny0405 commented on a change in pull request #1401: [CALCITE-3280] Add
regexp_replace function (Shuming Li)
URL: https://github.com/apache/calcite/pull/1401#discussion_r317469340
##########
File path: core/src/main/java/org/apache/calcite/runtime/SqlFunctions.java
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@@ -549,6 +550,77 @@ public static boolean posixRegex(String s, String regex,
Boolean caseSensitive)
return Pattern.compile(regex, flags).matcher(s).find();
}
+ /** SQL {@code REGEXP_REPLACE} function. */
+ public static String regexpReplace(String s, String regex, String
replacement) {
+ return regexpReplace(s, regex, replacement, 1, 0, null);
+ }
+
+ /** SQL {@code REGEXP_REPLACE} function. */
+ public static String regexpReplace(String s, String regex, String
replacement,
+ Integer pos) {
+ return regexpReplace(s, regex, replacement, pos, 0, null);
+ }
+
+ /** SQL {@code REGEXP_REPLACE} function. */
+ public static String regexpReplace(String s, String regex, String
replacement,
+ Integer pos, Integer occurrence) {
+ return regexpReplace(s, regex, replacement, pos, occurrence, null);
+ }
+
+ /** SQL {@code REGEXP_REPLACE} function. */
+ public static String regexpReplace(String s, String regex, String
replacement,
+ Integer pos, Integer occurrence, String
matchType) {
Review comment:
Fix the indent.
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