xiedeyantu commented on code in PR #4434:
URL: https://github.com/apache/calcite/pull/4434#discussion_r2162928367
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elasticsearch/src/main/java/org/apache/calcite/adapter/elasticsearch/QueryBuilders.java:
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@@ -499,12 +501,27 @@ static class RegexpQueryBuilder extends QueryBuilder {
private final String value;
RegexpQueryBuilder(final String fieldName, final String value) {
+ requireNonNull(fieldName, "fieldName");
+ requireNonNull(value, "value");
this.fieldName = fieldName;
- this.value = value;
+ // replace % to * and _ to ? for sql with like operator
+ this.value = replaceWildcard(replaceWildcard(value, "%", "*"), "_", "?");
Review Comment:
Maybe the string contains a `%`, it may need such wildcard characters like
'%\%%'. I don't know if Calcite supports writing like this.
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