panbingkun commented on code in PR #43751:
URL: https://github.com/apache/spark/pull/43751#discussion_r1505586754
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/StringUtils.scala:
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@@ -107,27 +107,82 @@ object StringUtils extends Logging {
def isFalseString(s: UTF8String): Boolean =
falseStrings.contains(s.trimAll().toLowerCase)
// scalastyle:on caselocale
+ def getAllMatchWildcard: String = {
+ if (SQLConf.get.legacyUseStarAndVerticalBarAsWildcardsInLikePattern) {
+ "*"
+ } else {
+ "%"
+ }
+ }
+
+ def filterPattern(names: Seq[String], pattern: String): Seq[String] = {
+ if (SQLConf.get.legacyUseStarAndVerticalBarAsWildcardsInLikePattern) {
+ filterPatternLegacy(names, pattern)
+ } else {
+ filterBySQLLikePattern(names, pattern)
+ }
+ }
+
/**
- * This utility can be used for filtering pattern in the "Like" of "Show
Tables / Functions" DDL
+ * This legacy utility can be used for filtering pattern in the "Like" of
+ * "Show Tables / Functions" DDL.
* @param names the names list to be filtered
* @param pattern the filter pattern, only '*' and '|' are allowed as
wildcards, others will
* follow regular expression convention, case insensitive
match and white spaces
* on both ends will be ignored
* @return the filtered names list in order
*/
- def filterPattern(names: Seq[String], pattern: String): Seq[String] = {
+ def filterPatternLegacy(names: Seq[String], pattern: String): Seq[String] = {
Review Comment:
Only rename `XXX` to `legacyXXX`.
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