Revert [CALCITE-6180] Append possibility to escape backslash in LIKE …

…with ESCAPE operator
chucheng92 · Jan 9, 2024 · a86bca8 · a86bca8
1 parent 3deb77c
commit a86bca8
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diff --git a/core/src/main/java/org/apache/calcite/runtime/Like.java b/core/src/main/java/org/apache/calcite/runtime/Like.java
@@ -96,9 +96,6 @@ static String sqlToRegexLike(
             || (nextChar == escapeChar)) {
           javaPattern.append(nextChar);
           i++;
-        } else if (nextChar == '\\') {
-          javaPattern.append("\\\\");
-          i++;
         } else {
           throw invalidEscapeSequence(sqlPattern, i);
         }

diff --git a/testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java b/testkit/src/main/java/org/apache/calcite/test/SqlOperatorTest.java
@@ -3606,9 +3606,6 @@ static void checkRlikeFails(SqlOperatorFixture f) {
   @Test void testLikeEscape() {
     final SqlOperatorFixture f = fixture();
     f.setFor(SqlStdOperatorTable.LIKE, VmName.EXPAND);
-    f.checkBoolean("'a\\c' like 'a#\\c' escape '#'", true);
-    f.checkBoolean("'a\\\\c' like 'a#\\c' escape '#'", false);
-    f.checkBoolean("'a\\c' like 'a#\\\\c' escape '#'", false);
     f.checkBoolean("'a_c' like 'a#_c' escape '#'", true);
     f.checkBoolean("'axc' like 'a#_c' escape '#'", false);
     f.checkBoolean("'a_c' like 'a\\_c' escape '\\'", true);