Github user JamesRTaylor commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/208#discussion_r78241847
--- Diff:
phoenix-core/src/main/java/org/apache/phoenix/compile/ExpressionCompiler.java
---
@@ -523,7 +523,12 @@ public Expression visitLeave(LikeParseNode node,
List<Expression> children) thro
byte[] wildcard = {StringUtil.MULTI_CHAR_LIKE};
StringUtil.fill(nullExpressionString, 0, pattern.length(),
wildcard, 0, 1, false);
if (pattern.equals(new String (nullExpressionString))) {
- return IsNullExpression.create(lhs, true,
context.getTempPtr());
+ if (node.isNegate()) {
+ return LiteralExpression.newConstant(false,
Determinism.ALWAYS);
--- End diff --
So WHERE col IS NOT '%' always returns false? Or should it become WHERE col
IS NULL?
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